This study was conducted to compare the shear bond strengths of composite resin bonded to Er:YAG laser or bur-prepared dentin surfaces using three self-etching adhesive systems. The occlusal surfaces of 120 human third molars were ground flat to expose dentin. The dentin was prepared using either a carbide bur or an Er:YAG laser at 350 mJ/pulse and 10 Hz (fluence, 44.5 J/cm2). Three different self-etching adhesive systems were applied: iBond™, Xeno III™ and Clearfil SE Bond™. Rods of composite resin were bonded to dentin surfaces and shear bond tests were carried out. Both dentin surfaces after debonding and resin rods were observed using a scanning electron microscope. When the Xeno III™ was used, no difference was observed on shear bond strength values when bur and Er:YAG laser were compared. When using iBond™ and Clearfil SE Bond™, bond strength values measured on Er:YAG-laser-prepared surfaces were lower than those observed on bur-prepared surfaces. The absence of smear layer formation

TY - JOUR. T1 - Effect of curing mode on microtensile bond strength to dentin of two dual-cured adhesive systems in combination with resin luting cements for indirect restorations. AU - Arrais, C. A.G.. AU - Giannini, M.. AU - Rueggeberg, F. A.. AU - Pashley, D. H.. N1 - Copyright: Copyright 2009 Elsevier B.V., All rights reserved.. PY - 2007/1. Y1 - 2007/1. N2 - This study evaluated the microtensile bond strength (μTBS) of dual-cured adhesive systems when the different components were either light activated or left in the uncured state prior to cementation of an indirect composite restoration. Occlusal dentin surfaces of 40 human third molars were flattened. The teeth were randomly assigned to 8 groups (n=5) according to the dualcured systems (bonding agents/resin cements) and curing modes: All Bond 2/Duolink (AB2-BISCO Inc) and Optibond Solo Plus Dual Cure/Nexus 2 (SOLO-Kerr). Resin cements were applied to pre-cured resin composite discs (2 mm thick/Z-250/3M ESPE), which were fixed to dentin ...

The purpose of this study was to investigate the effect of saliva contamination on the shear bond strength of an orthodontic adhesive used with Transbond Moisture-Insensitive Primer (MIP, 3M Unitek, Monrovia, Calif) and Transbond Plus Self-Etching Primer (SEP, 3M Unitek). Hydrophobic Transbond XT primer (XT, 3M Unitek) was used as a control. A total of 162 extracted premolars were collected and divided equally into 9 groups of 18 teeth each, and brackets were bonded with Transbond XT adhesive (3M Unitek) under different experimental conditions: (1) control: etch/dry/XT, (2) etch/dry/MIP, (3) etch/dry/MIP/wet (saliva)/MIP, (4) etch/wet/MIP, (5) etch/wet/MIP/wet/MIP, (6) dry/SEP, (7) dry/SEP/wet/SEP, (8) wet/SEP, and (9) wet/SEP/wet/SEP. Shear bond strength of each sample was examined with a testing machine. The results showed that the control group had the highest mean shear bond strength (group 1, 21.3 +/- 6.8 MPa), followed by the MIP group in a dry field (group 2, 20.7 +/- 5.0 MPa). No significant

TY - JOUR. T1 - The effect of flowable composite lining and dentin location on microtensile bond strength and internal fracture formation. AU - Kominami, Nao. AU - Shimada, Yasushi. AU - Hosaka, Keiichi. AU - Luong, Minh Nguyet. AU - Yoshiyama, Masahiro. AU - Sadr, Alireza. AU - Sumi, Yasunori. AU - Tagami, Junji. PY - 2019. Y1 - 2019. N2 - The objective of this study was to determine the effect of flowable composite lining and dentin location on internal dentin fracture formation in the microtensile bond strength (MTBS) test using swept-source optical coherence tomography (SS-OCT). MTBS test beams (1.0×1.0 mm) were prepared from human superficial and deep dentin, which was bonded with a self-etch adhesive (Clearfil SE Bond) and hybrid composite resin (Clearfil AP-X), with or without flowable lining (Clearfil Majesty ES-Flow). We tested 4 groups according to placement technique (with vs. without flowable liner) and dentin (superficial vs. deep) locations. Cross-sectional 2D images of the bonded ...

Objective. Evaluate, in vitro, the microtensile bond strength (µTBS) of RelyX ARC conventional resin cement and RelyX Unicem and Maxcem self-adhesive resin cements to dentin, and the infl uence of polyacrylic acid pretreatment on the µTBS. Material and Methods. Flat dentin surfaces were obtained in 15 third molars which were randomly divided into 5 groups: Group 1 - RelyX ARC (control); Group 2 - RelyX Unicem; Group 3 - Maxcem Elite; Group 4 - 22.5% polyacrylic acid and RelyX Unicem; Group 5 - 22.5% polyacrylic acid and Maxcem Elite. A block of composite resin was built over the resin cements. The samples were sectioned to obtain beams, and 20 specimens for each group were submitted to µTBS on a universal testing machine. Failure modes were analyzed by scanning electron microscopy. Results. According to ANOVA and Tukey test, the highest µTBS mean (MPa) was obtained with RelyX ARC (21.38), which did not differ statistically from Maxcem Elite with polyacrylic acid pretreatment (19.22) and ...

TY - JOUR. T1 - Nanoleakage at the dentin adhesive interface vs microtensile bond strength.. AU - Paul, S. J.. AU - Welter, D. A.. AU - Ghazi, M.. AU - Pashley, David Henry. PY - 1999/1/1. Y1 - 1999/1/1. N2 - Excessive etching of the dentin may decrease bond strength because the adhesive may fail to completely infiltrate to the base of the over-etched demineralized collagen network. The purpose of the present study was to evaluate the influence of increasing etching times on the microtensile bond strength of Single Bond and the leakage of silver ions within the hybrid layer. After etching occlusal dentin for 15, 30, or 60 seconds with 35% phosphoric acid gel, Single Bond was applied and cured for 10 seconds. Z100 was added and cured for 60 seconds. After 24 hours of water immersion, the teeth were sectioned into slices 0.7 mm thick, and hour-glass-shaped specimens were prepared. Alternate slices were either dried for 30 minutes in air, kept wet, or they were coated with fingernail varnish except ...

CARNEIRO, Karina Kato et al. Adhesives Doped with Bioactive Niobophosphate Micro-Filler: Degree of Conversion and Microtensile Bond Strength. Braz. Dent. J. [online]. 2016, vol.27, n.6, pp.705-711. ISSN 1806-4760. https://doi.org/10.1590/0103-6440201601110.. To evaluate the effect of incorporating niobium phosphate bioactive glass (NbG) into commercial etch-and-rinse adhesive systems, with and without silane, on their degree of conversion (DC) (%) and microtensile bond strength (μTBS). The NbG micro-filler was added to two etch-and-rinse adhesive systems: One Step (OS) and Prime & Bond (PB) at 40% concentration. The following groups were formed: control without glass addition OS; addition of unsilanized NbG (OSNbG); addition of silanized NbG (OSNbGS); control without glass PB; addition of unsilanized NbG (PBNbG); addition of silanized NbG (PBNbGS). The DC was determined using total Fourier spectroscopy reflection (FTIR/ATR). For μTBS testing, 48 human third molars (n=8) were restored and ...

Purpose: To assess the effect of different peri- and intertubular dentin mineralization conditions and etching on shear bond strength in vitro. Materials and Methods: One hundred fifty crowns of extracted bovine incisors were embedded in resin and ground to expose the buccal coronal dentin. Sixty specimens were subjected to a demineralizing solution (DS) and another 60 teeth to a bacterial-based laboratory caries model (S. mutans, SM). Thirty specimens of each demineralization protocol (DS and SM) were randomly selected and remineralized (-R). Thirty sound dentin specimens served as control (C). Resin composite buildups (Tetric) were bonded after application of one of the following adhesives: a one-step self-etching adhesive (Xeno III), and a self-etching adhesive (Syntac Classic) without (three-step) and with prior additional 35% phosphoric acid etching (etch-and-rinse, four-step). Teeth were subjected to shear bond strength testing in a universal testing device at a crosshead speed of 0.5 ...

The objective of this study was to compare dentin shear bond strength (DSBS) of dentin bonding agents (DBAs) cured with a plasma arc (PAC) light curing unit (LCU) and those cured with a light emitting diode (LED) LCU. Optical properties were also analyzed for Elipar freelight 2 (3M ESPE); LED LCU, Apollo 95E (DMT Systems); PAC LCU and VIP Junior (Bisco); Halogen LCU. The DBAs used for DSBS test were Scotchbond Multipurpose (3M ESPE), Singlebond 2 (3M ESPE) and Clearfil SE Bond (Kuraray). After DSBS testing, fractured specimens were analyzed for failure modes with SEM. The total irradiance and irradiance between 450 nm and 490 nm of the LCUs were different. LED LCU showed narrow spectral distribution around its peak at 462 nm whereas PAC and Halogen LCU showed a broad spectrum. There were no significant differences in mean shear bond strength among different LCUs (P > 0.05) but were significant differences among different DBAs (P < 0.001). ...

To evaluate the effect of nonvital bleaching on the shear bond strength of composite resin using three adhesive systems. Two hundred seventy bovine teeth were assigned to 3 groups (n = 90): SP, paste of sodium perborate and water; CP, 37% carbamide peroxide; CO, control group (no treatment). After the bleaching treatment, the teeth in each group were cut into enamel (E) and dentin (D) sections. The teeth were embedded in polyester resin and polished in order to obtain a flat E or D surface. Each group was divided into 6 subgroups (n = 15) according to substrate (E and D) and adhesive system: SB, Single Bond (solvent: water/alcohol); PB, Prime & Bond NT (solvent: acetone); CLF, Clearfil SE Bond (solvent: water). The adhesive system was applied on each flat surface according to the manufacturer s instructions and a cylinder of composite resin Z-250 was overlaid. The specimens were stored in distilled water for 7 days at 37 C. The SBS test was performed in a universal testing machine with crosshead ...

Microtensile bond strength of Resin composite to Normal dentin and Caries - affected dentin with total-etch and self-etch bonding adhesives before and after thermocycling

The exposure of dentin to the oral environment leads to dentinal sensitivity, the treatment of which exposes the substrate to various substances that can alter its interaction with adhesive restorative materials. The objective of this study was to analyze whether the prior use of desensitizing agents interferes with the bond strength of resin restorative materials. A total of 48 molars were divided into six groups, according to conventional application (CV) of the adhesive systems Scotchbond Multipurpose (SB) and Clearfil SE Bond (CF) and their association with bioglass (BG/Biosilicate®) or arginine (AR/Sensitive Pro-Relief/TM). Bond strength was assessed by a microshear mechanical test, using a composite resin as restorative material (Filtek Z350 XT). Mechanical testing was performed at a speed of 0.5 mm/min in a universal testing machine, and the data were submitted to two-way ANOVA and Tukeys test (α = 0.05). The bond strength (MPa) was 17.03 for SBCV; 21.19 for SBAR; 26.24 for SBBG; 21.37 for

Introduction. The mechanism for adhesive bonding to dental substrates, especially to dentin, has been extensively studied in the last few decades. The establishment of effective interlocking occurs when the adhesive penetrates into the intratubular and intertubular dentin so that resin penetration into the conditioned dentin results in the formation of intratubular resin tags and a hybrid layer.1 Micromechanical attachment is the most important mechanism of resin adhesion to dentin. However, there are several factors that can affect hybrid layer and resin tag formation, such as acid-etching, the moisture conditions of the substrate, and adhesive and dentin depth.2. During dentin acid-etching, the mineral content of the dentin surface is removed, and the collagen fibrils remain supported by water.3 The moist bonding technique prevents the collagen fibers from collapsing and provides stability to the collagen, thus enabling greater infiltration of adhesive monomers.4 However, some studies have ...

This study evaluated the influence of ethanol/water ratios on the bond strength to dentin of experimental two-step, self-etch adhesive systems. Self-etch primers were prepared with constant 40 mass % of solvents. The ethanol/water ratios tested were 7:1 (P1), 3:1 (P2), and 1:1 (P3); primers with only ethanol (PE) or water (PW) as solvent were also tested. The bond strength to the dentin was investigated through a microtensile bond strength test. Resin-dentin beam-shaped specimens were obtained and tested after 24 h, 6 months, and 1 year of storage in water at 37°C. The hybridization morphology was analyzed using SEM. For bond strength at 24 h, PE = P1, P1 = P2, and P2, P3 and PW , PE. After 6 months, PE = P1 , P2, P3 and PW. After 1 year, no significant differences among the materials were detected. No significant differences among the periods were detected for PE. For P1, 24 h , 6 months = 1 year. For P2, P3 and PW, 24 h = 6 months , 1 year. For PE and P1, adhesive failures were predominant at ...

Purpose: The aim of this study was to examine the influence of Er:YAG laser on the shear bond strength of three different adhesives to lased dentin. ...

TY - JOUR. T1 - Glass-ionomer restoratives and liners. T2 - shear bond strength to dentin.. AU - Bell, R. B.. AU - Barkmeier, Wayne W.. PY - 1994. Y1 - 1994. UR - http://www.scopus.com/inward/record.url?scp=0028692912&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0028692912&partnerID=8YFLogxK. M3 - Article. C2 - 7803139. AN - SCOPUS:0028692912. VL - 6. SP - 129. EP - 134. JO - Journal of Esthetic and Restorative Dentistry. JF - Journal of Esthetic and Restorative Dentistry. SN - 1496-4155. IS - 3. ER - ...

265.00. CLEARFIL LINER BOND 2V is a dual-cure user-friendly dental adhesive system with multiple indications. With the self-etching primer of CLEARFIL LINER BOND 2V, time is saved while high bond strength is obtained. The self-etching primer etches mildly and enables the collagen fibers to maintain their natural structure. The bonding liquid of Liner Bond 2V does not leave an unfilled collagen and dentin layer in the decalcificated zone, but completely fills the thin etched layer, resulting in high bond strength. The high bond strength to enamel, dentine, metal and porcelain makes CLEARFIL LINER BOND 2V a suitable adhesive system for multiple indications.. ...

Contemporary adhesive systems have shown good mechanical properties and adequate bonding in the short term , however the stability of the dentin-adhesive interface (DAI) is still questionable in long-term studies . The long-term retention and stability of resin composite to dentin substrate is only possible with high quality micromechanical/chemical interaction between adhesive and substrate by the formation of hybrid layer (HL) , characterized as a three-dimensional collagen-resin biopolymer that provides a continuous and stable link between the adhesive and dentin substrate . The formation of a hybrid layer may be achieved by two approaches, namely etch and rinse (ER) and self-etching (SE) bonding agents . ER adhesive strategy involves the smear layer removal and superficial demineralization by phosphoric acid etching, following rinsing and partial drying to keep the dentin moist. Afterwards, the clinician can use either a priming/hydrophobic resin adhesive application (3-step etch-and-rise ...

Materials and Methods: Flat mid-coronal dentin surfaces of extracted third molars (n = 28) were subjected only to grinding with a 600-grit SiC paper for 1 min (sound dentin S, n = 14) or additionally to erosive pH cycling with a cola-based soft-drink (eroded dentin E, n = 14). After acid etching, rinsing, and air drying, S and E were rehydrated with 1.5 μl of 2% CHX (S2%, n = 7; E2%, n = 7) or of distilled water (control SC, n = 7; EC, n = 7). Composite buildups were incrementally constructed with Filtek Z350 following Adper Single Bond 2 application. Specimens were sectioned into beams, which were subjected to microtensile testing immediately or after 6 or 12 months of aging. Fractured surfaces were observed under a digital microscope (50X magnification). Microtensile bond strength (μTBS) (MPa) was analyzed by three-way ANOVA and Tukeys tests (α = 0.05) and failure mode by the Kruskal-Wallis test (α = 0.05 ...

Materials and Methods: A total of 30 CAD/CAM blocks of lithium disilicate (LD; IPS e.max CAD) were cut into four square sections (6 x 6 x 6 mm; n = 60 per group) and processed as recommended by the manufacturer. The LD specimens were divided into 12 groups according to the following independent variables: silane coupling agent (no silane; silane without 10-MDP [MBS, Monobond S]; silane with 10-MDP [MB+, Monobond Plus]) and adhesive + luting composite (no adhesive + Enforce; no adhesive + RelyX Ultimate; Prime & Bond Elect [PBE], a silane- and MDP-free universal adhesive + Enforce; Scotchbond Universal Adhesive [SBU], a silane- and MDP-containing universal adhesive + RelyX Ultimate). After each treatment, cylindrical, transparent matrices were filled with a luting composite and light cured. Specimens were stored in water (37°C for 24 h or 1 year) and submitted to the microshear bond strength (?SBS) test. The failure pattern and ?SBS were statistically evaluated (? = 0.05). In addition, specimens ...

This next generation of the original PANAVIA SA Cement offers stronger shear bond strengths; faster light-curing time; and room temperature storage. Its EASY CLEANUP reduces the risk of gingival trauma, making it deal for indirect procedures... PANAVIA SA Cement Plus has been developed for cementing indirect restorations made of metal, all-ceramic (zirconia), hybrid ceramics and composites. This self-adhesive resin cement does not require phosphoric acid treatment or any special primer or adhesive for bonding to tooth structure. Obtaining a strong, durable bond to zirconia can be challenging. PANAVIA SA Cement Plus, with its high concentration of the original MDP, bonds to zirconia chemically, as well as micromechanically. Bond strengths are virtually unaffected by the dryness or wetness of the tooth structure. It also contains a new Radical Amplifier, which increases the rate of polymerization, shortens the light-curing time, and increases the bond strength.. Features. ...

Background: many of the problems and composite filling failures are due to dentists inadequate and passing acquaintance with bonding principles. The aim of this study is to assess dentists acquaintance with the bonding principles and different adhesive application that are going to be used in educational programs. Methods: in this descriptive and cross-sectional study, a valid and reliable questionnaire was designed. The questionnaires were distributed, in person, among dentists in Mashhad, 1389. Our random sample comprised 100 dentists; the questionnaires were filled, gathered and analyzed. The data and results are presented in tables and charts. Results: the results of the study indicate that only 21% of the dentists in the sample have adequate knowledge and proficiency in total-etch adhesive application. This knowledge even reduces to 12% for self-etch adhesives. Moreover, it revealed that just 8% of the dentists had enough information about the methods of connecting composite on Porcelain.

Introduction: Orthodontic treatment may cause an increased accumulation of cariogenic bacteria. An orthodontic resin with antibacterial properties may inhibit bacterial growth around the brackets. The aims of this in-vitro study were to compare the antibacterial and mechanical properties of the newly introduced orthodontic resin containing selenium with a standard resin and a resin modified glass ionomer (RMGI). Methods: Three orthodontic materials were tested (SeLECTDefense; TransbondXT, Fuji Ortho-LC). The antibacterial properties of these materials were evaluated by studying the bacterial growth in liquid media (BG) and agar diffusion (AD) tests. In the BG testing, 100 adhesive discs (3mmx2mm) were created of each material. Five discs were then placed into each vial containing 0.5ml of brain-heart-infusion broth and 2.5µl of streptococcus mutans (MS)(n=20). Following incubation (37°C, 24hours), the vials were placed in a Spectrophotomoter (Genesys 20) at 600 nm to determine bacterial growth by

As reported in the results, the null hypothesis of the study was partially accepted. In fact, the present investigation demonstrated that when using the indirect technique, the bond failure rate is not significantly different than when the direct technique is used.. These results are in agreement with Deahl et al. [15] and Thiyagarajah et al. [16] that found no difference in detachment rate in the two techniques. Nevertheless, we can notice that the percentage of bond failure reported in the present study (3.54% for direct technique, 5.79% for indirect one) is higher for both techniques than the percentage reported by Deahl (1.17% ± 3.62% and 1.21% ± 3.81%, respectively) as well as those reported by Thiyagarajah (2.9% for direct technique, 2.2% for indirect one). The reasons of this difference can be found in the numerous differences in the study drawing: type of bracket and adhesive system, procedure used for the transfer tray confection, number of patients included in the sample and study ...

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The present invention is a hot melt adhesive composition comprising at least one ingredient present in an encapsulated form. The encapsulated ingredient may be any known hot melt adhesive formulation ingredient as well as any hot melt adhesive additive such as antioxidants and fragrances for which there is a desirable change in adhesive properties by isolating such ingredient for a duration of time. The encapsulated ingredient is released from the shell by means of pressure, temperature, diffusion, pH, light, radiation, ultrasound, and combinations thereof. Hot melt adhesive compositions comprising at least one encapsulated ingredient are useful for a variety of novel products including self-supported friction glue sticks, non-tacky pelletized pressure sensitive adhesives, cohesive adhesive systems, hot melt adhesive compositions exhibiting improved thermal stability and odor, as well as for a variety of other adhesive applications.

This adhesive solution offers high bond strength with one simple application technique and a quick 35-second adhesive application time.

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Dental Adhesive - Tenure Multi-Purpose Bonding System - Tenure A and B multi-purpose, self-cure adhesive bonds to the five intraoral surfaces; enamel, dentin, porcelain, composite and metal.

1056: The bond strength and the stability are two different things. Yes, the bond strength of a double or triple bond is greater than a single bond. This bond strength (bond dissociation energy) is the measure of the energy of breaking that bond. The reactivity on the other hand does not require that bond to be broken. To be reactive it needs to share electrons with another atom. In a multiple bond there are more electrons being shared between two atoms than in a single bond, and that greater electron density in between the two bonding atoms makes the multiple bond more reactive. ...

A neutral pH, water-reversible adhesive that dries clear. Use for repair, gluing end sheets, and general archival adhesive applications.

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A base support for an image recording material strikes a balance between high flatness and superb stiffness and is favorably available for various image recording mediums capable of providing high quality. The base support comprising at least base paper satisfying a ratio of subsurface internal bond strength A relative central internal bond strength B that is represented preferably by A/B.ltoreq.0.7, and more preferably by 0.3.ltoreq.A/B.ltoreq.0.7. The subsurface internal bond strength is preferably from 90 to 150 mJ.

Summary: Intrigued by his new concierge doctor, Boris schemes on how to more fully integrate Hank into both the Hamptons and Boris own life. One plan after the next leads to mixed failure and success. Poor Boris!. A/N: Hey, Im back! Chapter Fifteen finishes the story. Warning: there is sex here! (Or is that really Yay, there is sex here!). Chapter Fifteen. Part E:. Mark Your Territory. Far later in the day than he would like, Boris was staring tiredly at his computer screen when he heard a soft knock at his door. Rubbing his forehead and seriously wondering when retired had started to mean busy at work at least five days a week, he looked up. He could only hope that nothing was wrong, for the past few weeks had been full of turmoil. The last two weeks had been almost tranquil, with Hank steadily recovering from his illness and Evan only seen from time to time. With any luck, that tranquility would continue, yet the very tranquility made him suspect that the rare peace and quiet was soon to ...

Like primers for the face eye primers come in different consistencies, theres liquid, gel and mousse varieties and it is used as a base - applied before eye-shadow/liner and optional to apply concealer first before the base or just go ahead with the primer application.. Liquid primers I find are best to suit all types of skin and ages but it is ideal for dry eye-lids, mature skin and sensitive thin skin, the texture of this is usually creamy and thicker than what the liquid name would make you assume, its creamy texture makes it very easy to apply and to make sure to rub it in and keep eyes closed for a few seconds for it to settle into the skin (sometimes it can crease - simply rub and blend any crease lines out) any eye primer thats the equivalent to fluid and very watery I would say is a no-go, chances are the products off or its just not going to be strong enough as a base. The same attributes can be applied to cream primers, the only thing is that they are thicker so it depends on ...

Order # 034522101 Multi-use Hybrid with Unsurpassed Biocompatibility, Bond Strength, and Versatility The physical properties of this unique and extremely biocom

What is the difference between Dipole Dipole and London Dispersion Forces? Dipole-dipole forces have a weaker bond strength than London Dispersion Forces.

Tõstevõimsus: 3000 kg Tõsteulatus: 3 m Keti paksus: 10 mm Käepideme pikkus: 410 mm Tõstekonksu kida: 40 mm Min. pikkus: 480 mm Mass: 21 kg

The aim of this study was to evaluate the microtensile bond strength of two all-in-one self-etch adhesives applied to sound and caries-affected dentin with four different application techniques. Forty extracted third molars with occlusal caries were randomly divided into four groups for G-Aenial Bond and S3 Bond: (1) according to manufacturer-s instructions; (2) with acid etching before applying adhesives; (3) doubling adhesive application time; and (4) doubling adhesive coating. Teeth were sectioned to obtain 1-mm-+/- 0.2-mm-thick dentin sticks and subjected to a tensile force. For G-Aenial Bond, doubling the time and application of two consecutive coats produced significantly higher strength than that obtained by following manufacturers- instructions and acid etching application to sound dentin. Prior acid etching and application of two consecutive coats to caries-affected dentin generated significantly higher bond strength than that using other techniques. For S3 Bond, there was no ...

TY - JOUR. T1 - Effects of one-year storage in water on bond strength of self-etching adhesives to enamel and dentin. AU - Jaberi Ansari, Zahra. AU - Sadr, Alireza. AU - Moezizadeh, Maryam. AU - Aminian, Roya. AU - Ghasemi, Amir. AU - Shimada, Yasushi. AU - Tagami, Junji. AU - Jaberi Ansari, Shahab. AU - Moayedi, Sedigheh. N1 - Copyright: Copyright 2011 Elsevier B.V., All rights reserved.. PY - 2008. Y1 - 2008. N2 - The aim of this study was to compare the bond strengths of three self-etching materials during one year of storage. Clearfil SE Bond (SE), Clearfil Protect Bond (PB), and Clearfil Tri-S Bond (TS) were used for bonding to dentin and enamel according to manufacturers instructions. Microshear bond strength values were measured after 24 hours, six months, and one year. Two-way ANOVA showed that the interaction of material type and storage time was significant for dentin. At baseline, SE had the highest bond strength to dentin. There were no significant changes in bond strength for each ...

The aim of this study was to investigate the effect of preheating on microshear bond strength (MSBS) of silorane and methacrylate-based composite resins to human dentin. The teeth were randomly divided into three main groups: (1) composite resins were heated upto 68 degrees C; (2) cooled to 4 degrees C; and (3) control [room temperature (RT)]. Each group was then randomly subdivided into four subgroups according to adhesive system used [Solobond M (Voco), All Bond SE (Bisco), Clearfil SE Bond (CSE) (Kuraray), Silorane adhesive system (SAS) (3M ESPE)]. Resin composite cylinders were formed (0.9mm diameterx0.7mm length) and MSBS of each specimen was tested. The preheated groups exhibited the highest MSBS ( ...

Purpose: To determine the degree of conversion (DC), physicochemical properties, and microshear bond strength (mu SBS) of experimental self-adhesive resin cements (SARCs) to dentin and yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramic. Materials and Methods: Dual-curing cements were formulated with UDMA, HEMA, bis-GMA, and TEG-DMA as the organic matrix. 2MP (bis 2-(methacryloyloxy)-ethyl-phosphate) and GDMAP (1,3-glycerol dimethacrylate phosphate) were added to impart self-adhesive characteristics. A control group was formulated without self-etch methacrylates. Silanized particles were incorporated. Photoactivation was carried out using an LED light-curing unit (1200 mW/cm(2)) for 20 s. Infrared spectroscopy assessed the DC immediately and after 24 h. pH was analyzed in real time and recorded after 48 h. Water sorption (W-sp), water solubility (W-sl), and film thickness measurements followed ISO 4049. mu SBS of the cements to dentin and Y-TZP was evaluated immediately and after 3 ...

TY - JOUR. T1 - Shear bond strength of the Tenure Solution dentin bonding system.. AU - Barkmeier, Wayne W.. AU - Cooley, R. L.. PY - 1989/10. Y1 - 1989/10. N2 - A liquid solution of an oxalate bonding system containing NTG-GMA and PMDM has become commercially available. The bond strength of this oxalate adhesive (Tenure Solution) to dentin was determined by bonding composite resin cylinders to extracted teeth. The bond strengths obtained in this study are compared to the bond strengths obtained in earlier studies with the first and second generation oxalate adhesives whose components were supplied as powders and required mixing. The oxalate solutions developed significantly higher bond strengths than the original powder type systems.. AB - A liquid solution of an oxalate bonding system containing NTG-GMA and PMDM has become commercially available. The bond strength of this oxalate adhesive (Tenure Solution) to dentin was determined by bonding composite resin cylinders to extracted teeth. The ...

Purpose: To examine the effects of collagenase and esterase activity on the microtensile bond strength and nanoleakage at the resin-dentin interfaces of two adhesive systems: a total-etch adhesive (Single Bond 2: SB) and a self-etch adhesive (Clearfil SE Bond: SE). Methods: Resin composites were bonded to the occlusal dentin surfaces of extracted human premolars with either SB or SE. The bonded teeth were sectioned into beams and assigned to one of four storage conditions: phosphate buffer solution (24 hours), phosphate buffer solution (4 weeks), collagenase solution (4 weeks), or esterase solution (4 weeks). Microtensile bond strength was evaluated and analyzed by two-way ANOVA. Failure mode was analyzed under SEM, and nanoleakage was examined with TEM. Results: The bond strength of SE was superior to that of SB after 4-week storage in three aqueous solutions. Collagenase and esterase solutions did not decrease the bond strength of SB any more than the phosphate buffer solution (P, 0.05). In ...

Get this from a library! Tensile bond strength of ceramic orthodontic brackets bonded to porcelain surfaces.. [I Kocadereli; S Canay; K Akça] -- The aim of this study was to compare various surface treatment methods to define the procedure that produces adequate bond strength between ceramic brackets and porcelain. The specimens used in this ...

TY - JOUR. T1 - Comparative evaluation of shear bond strength of two nanofilled posterior composites as core build up materials. T2 - An in vitro study. AU - Ganerhiwal, Shakshi. AU - Gupta, Chandni. AU - Kundabala, M.. AU - Ginjupalli, Kishore. AU - Shenoy, Ramya. PY - 2016/9/1. Y1 - 2016/9/1. N2 - Core build up is necessary as a foundation for post endodontic restorations when the tooth structure is severely damaged, fractured or extensively carious. Core build up material should provide resistance and retention form for the coronal restoration and possess sufficient strength to resist occlusal forces. An ideal core build-up material should have physical properties similar to those of tooth structure where the occlusal biting loads are transferred to dentin. The study evaluated and compared the shear bond strength of two nanofilled resin composites Group A - Filtek Z350 XT and Group B - Filtek Bulk fill) as core build up materials. Eighteen extracted permanent human molar teeth were sectioned ...

The present invention includes: an adhesive material attaching process for attaching a wafer to a thermoseffing adhesive material provided on a base film; a dicing-film attaching process for attaching the base film to a dicing film; an IC-chip separating process for cutting the wafer and the thermosetting adhesive material to divide them into IC chips; and a mounting process for attaching, to a carrier, the IC chips having the thermosetting adhesive material attached thereto; wherein the thermosetting adhesive material has a viscosity of 20000 Pa s or less at the attaching temperature during the adhesive material attaching process.

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This study compared the microtensile bond strength (BS) and the micromorphology of resin-dentin interface (MI) of a conventional adhesive to two-steps etch-and-rinse bonding agents after 1 year of water storage. Twenty-eight human third molars were used (n = 7). Teeth were divided into four groups (GCB: Gluma Comfort Bond; OPB: OptiBond FL; OCB: One Coat Bond SL; PUB: Peak Universal Bond). Specimens were tested in tension after 24 h or 1 year of water storage. Dentin BS strength data were analyzed by split-plot two-way ANOVA followed by Tukey-Kramer tests (α = 0.05). Water-storage for 1 year significantly decreased BS for OCB; however, no significant difference was noted between OCB and GCB and PUB adhesives after 1 year of water-storage. OPB showed the highest BS values at both storage times. All adhesives formed a hybrid layer with resin tags, and both interfacial structures were maintained after 1 year. However, degradation signals within interfacial structures were observed only for the adhesive

Various studies have reported a significant reduction in tensile bond strength of brackets when bonding is carried out immediately after bleaching. The purpose of this investigation was to determine the effect of an antioxidant agent on the tensile bond strength values of metal brackets bonded with composite resin to human enamel after bleaching with carbamide peroxide (CP). ...

To evaluate the bleaching procedure and application of sodium ascorbate on dentin bond durability, the enamel surface of intact human third molars (n = 18) were removed, and the teeth were randomly divided into two groups for immediate and six-month bond strength evaluation. The specimens were further assigned into three subgroups according to treatment procedure, as follows: subgroup A, no bleaching (positive control) was performed prior to the etch-and-rinse bonding with single bond and subsequent build-up with Z250 composite; subgroup B, the samples were bleached with 20% carbamide peroxide 6 h/day for five consecutive days prior to bonding; and subgroup C, bleaching was performed as in subgroup B, after which 10% sodium ascorbate was applied on dentin surface for 10 min before the bonding procedures. A microtensile bond strength test was performed and the failure modes were evaluated under a stereomicroscope. The data were analyzed using two-way analysis of variance (ANOVA) and Tukeys ...

Descrição: Objetivo: Este estudo avaliou a influência de diferentes métodos de pré-tratamento da superfície dentinária sobre a resistência de união à microtração e modo de falha de um sistema adesivo de frasco único. Metodologia: Vinte e quarto terceiros molares foram incluídos em resina acrílica e desgastados... ...

PubMed journal article: No-bottle vs multi-bottle dentin adhesives--a microtensile bond strength and morphological study. Download Prime PubMed App to iPhone, iPad, or Android

This study evaluates and compares the effects of enamel prophylaxis using either oil-free pumice or oil-containing prophylaxis paste on the incidence of bracket failure in orthodontic patients.. Forty-six orthodontic patients participated in this prospective clinical trial. A cross-mouth method was used in each patient, in which two diagonal quadrants (i.e. upper right and lower left or vice versa) were randomly assigned to the pumice group and the contralateral diagonal quadrants to the Prophy Paste (R) group. A total of 836 teeth were bonded using Transbond XT (3M Unitek) and monitored for an average of 23 months for bond failure. Chi-square analysis was used to compare the number of bracket failures between the groups.. Overall, 26 bond failures occurred by the end of the trial. Fifteen bracket failures were observed in the Prophy Paste group (3.6%) and 11 in the pumice group (2.6%). The failure rates were fairly evenly distributed between the upper and lower jaws. There were no statistically ...

OBJECTIVE: The objective of this study was to evaluate the effect of a Biosilicate®, associated with dentin adhesive system, on microtensile bond strength (μTBS) to sound and demineralized dentin. MATERIALS AND METHODS: Eighty sound-extracted molars had their middle occlusal dentin exposed. In forty teeth, dentin was artificially demineralized (pH cycling). Sound and demineralized dentin teeth were separated into four groups (n = 10), according to the substrate treatment before restoration: Group 1-total-etching adhesive Adper TM Single bond 2 (ASB) + Biosilicate®, Group 2-ASB (without Biosilicate®), Group 3-AdheSE self-etching adhesive system (AdSE) + Biosilicate®, and Group 4-AdSE (without Biosilicate ...

The aim of the present study was to evaluate the influence different bleaching agents and concentrations on microtensile bond strength of different dentin adhesives in class V cavities. 135 freshly extracted third molars were included in this study. In all teeth cervical class V dentinal cavities were prepared allowing the simulation of dentin perfusion. The specimens were randomly assigned to nine experimental groups of fifteen each: S0: Syntac/ control; S17: Syntac/ Perfect Bleach 17%; S38: Syntac/ Opalescene Xtra Boost 38%; X0: XP Bond/ control; X17: XP Bond/ Perfect Bleach 17%; X38: XP Bond/ Opalescene Xtra Boost 38%; A0: AdheSE One/ control; A17: AdheSE One/ Perfect Bleach 17%; A38: AdheSE One/ Opalescene Xtra Boost 38%. Bleaching was performed 8 hours at 36°C for 7 days. Between the ranges all samples were stored in physiological saline for 16 hours. The dentin adhesives used as recommended by manufactures instruction were applied on a standardized dentin surface. Microtensile bond ...

Reed and wheat straw particleboards bonded with urea formaldehyde (UF) resin were manufactured from two different material configurations (i.e., fine and coarse particles). The board densities were in the range of 0.550-.90g/cm3. The effects of particle size and board density on the board properties were examined. The properties of particleboard produced from fine particles were better than those made from coarse particles. An increase in board density resulted in a corresponding improvement in the board properties. The properties of OF bonded reed and wheat straw particleboards were relatively lower than those of commercial particleboards. Three silane coupling agents were used to improve the bondability between the reed and wheat particles and OF resin. Results of this study indicate that all the board properties were improved by the addition of silane coupling agent. The degree of improvement achieved from each coupling agent was different; epoxide silane was found to be more effective for reed straw

The aim of this study was to evaluate the effect of chlorhexidine (CHX) application on immediate and two-month bond strength of a filled adhesive system. Methods: Forty eight non-carious human third molars without enamel of occlusal surface were randomly divided into two main groups according to CHX application: control and CHX. Each main group was further subdivided into 2 subgroups depending on storage time: immediate or two-month collagenase storage. In CHX groups, 2% CHX was applied for 30 s. Filled adhesive resin (PQ1) was applied on the etched dentin surfaces and cured in all experimental groups. Composite resin (Amelogen) was placed on the dentin surfaces and shear bond strength (SBS) was evaluated immediately and after two-month storage in collagenase solution. Failure modes were determined by stereomicroscope. Results: There was no significant difference in immediate SBS between groups (P|0.05). After two-month collagenase storage, although SBS was significantly reduced in control group (P|0.05

Objectives: To investigate the efficacy of a new orthodontic bonding system that incorporates the primer solution in the adhesive. Materials and Methods: 90 anterior bovine teeth were divided in three groups: in Group I, brackets were bonded with Transbond XT system, in Group II with GC Ortho Connect which incorporates the primer in the adhesive, and in Group III, a single layer of primer was applied on the teeth before bonding the brackets with GC Ortho Connect. After a 24-hour latency period, Shear Bond Strength (SBS) and Adhesive Remnant Index (ARI) were measured. In cases with remnants left mainly on the bracket base, energy dispersive X-ray (EDX) spectrometry was performed in order to determine the presence of calcium particles. Selected cases were examined with Scanning Electron Microscopy (SEM) analysis and in nanometer scale with a confocal visible light microscope (μsurf revolver, NanoFocus AG, Germany). Results: The mean SBS values were 7.25 ± 0.58 MPa for Group I, 6.57 ± 0.50 MPa for Group

This study investigated the relationship between the irradiance transmitted through ceramic and the bond strength of a resin cement to dentin. After application of an adhesive system, elastomer molds with cylindrical orifices (1.2 mm in diameter) were placed onto bovine dentin surfaces and filled with a photoactivated luting agent (Enforce; Dentsply Caulk). Light-activation was performed through a 0.6-mm-thick ceramic disc using different intensities: 250, 400, 550, 700, or 850 MW/cm(2). Control specimens were irradiated without ceramic (1050 mW/cm(2)). The radiant exposure was kept at 30 J/cm(2). Light spectral distribution was analyzed with a spectrometer. Microshear test was conducted and modes of failure were classified under SEM. Bond strength data were analyzed with ANOVA and Student-Newman-Keuls test (alpha ,= 0.05), and failure scores with the Kruskal-Wallis test (alpha ,= 0.05). A linear regression model assessed the relationship between irradiance and bond strength. Groups lightcured ...

PURPOSE: To evaluate microtensile bond strength and interfacial nanoleakage expression of adhesive interfaces created by XP-Bond on human deproteinized dentin immediately after bonding and after 6 months of artificial aging. MATERIALS AND METHODS: Noncarious human molars were selected, middle/deep dentin substrates were exposed, and either assigned to group 1 (XP-Bond applied on collagen-depleted dentin) or to group 2 (XP-Bond applied in accordance with manufacturers instructions). In group 1, the etched dentin surface was treated with 10% NaOCl for 60 s to remove the exposed demineralized organic matrix before XP-Bond application. Composite/dentin beams were obtained in accordance with the microtensile nontrimming technique and either pulled to failure after 24 h or after 6 months artificial aging. Data were analyzed with two-way ANOVA and Tukeys post-hoc test (p , 0.05). Interfacial nanoleakage evaluation was performed on additional adhesive interfaces to quantify the amount of silver ...

MATERIALS AND METHODS: Y-TZP zirconia specimens in three experimental groups were subjected to Y-TZP particle deposition via dipping into the milling residue suspension at different times prior to the sintering process. The dipping procedure was repeated twice for each specimen in group B, six times in group C, and ten times in group D. The specimens subjected to airborne-particle abrasion (110 μm Al2 O3, Rocatec Pre) acted as the control group (group A). All of the specimens were then bonded using adhesive resin cement (RelyX Ultimate). A μ-PO test was used to determine the bond strength values. One-way ANOVA at a 5% confidence level was performed for data analysis. Optical microscopy and scanning electron microscopy (SEM) were used to evaluate the failure modes and surface structure ...

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A university study1 conducted at Dalhousie University in Halifax, Nova Scotia, Canada, compared the shear bonding strengths of five bonding systems. The results showed that the Peak Universal Adhesive System yielded the highest bond strengths to both dentin and enamel. An additional internal study9 conducted by Ultradents R&D team tested 15 materials for shear bond strength. Seven specimens of dentin or cut enamel were made for each set. All sets were prepared according to manufacturers instructions and bond strength testing was conducted according to Ultradents testing methods, which were since adopted by the ISO as a standard for testing. The strengths were recorded and averaged. The Peak Universal Adhesive System recorded the highest bond strengths on both dentin and enamel ...

Introduction: Soldering has several applications in prosthodontic treatments; however, the effect of soldering on porcelain to metal bond strength has not been adequately studied. This study was designed to assess the bond strength of porcelain to metal, and the mode of failure at the soldered and non-soldered areas of cubic ...

The aim of this study was to examine the morphology of the hybrid layer (HL) of bonded water-stored specimens after different chemical pre-treatments of dentin. Materials and methods. Twenty-seven recently extracted human molars were selected. Fifty-four dentin disks in middle/deep dentin were obtained with a slow speed saw with a diamond-impregnated disk under water lubrication. Smear layers were created with 180 grit silicon carbide under running water for 1 min. Different pre-treatments of dentin were: Group (1) no treatment; Group (2) 35% H3PO4 etch for 15 s followed by 10% glutaraldehyde for 120 s; Group (3) 37% H3PO4 etch for 15 s followed by 5% NaOCl for 120 s. Three dentin bonding agents (DBAs), Prime and Bond NT (P and B), AdmiraBond (AB), and Clearfil SE Bond (SEB) were applied in association with a resin composite following the manufacturers directions. Each specimen was then longitudinally sectioned and polished with wet SiC papers (up to #4000 grit). Impressions of the polished ...

Introduction: A good dental cement used as repair material should possess chemical binding, easy handling characteristics, minimal marginal breakdown and minimal polymerization shrinkage, high resistance to wear, high cohesive strength, and good color stability. This study was undertaken to compare the in vitro microleakage and shear bond strength among the newly introduced Prime fill flow and Dyad flow. Aim: The aim of this study was to determine the effect on shear bond strength and microleakage of two self-adhesive composite resin. Materials and methods: Selected specimens were collected and stored in deionized water with an antibactericidal agent, 0.2% sodium azide, until ready to be used and were randomly divided into two groups: group I: Dyad flow and group II: Prime fill flow; specimens were sheared with a universal testing machine, and the results were calculated in megapascal, specimens were sectioned in a mesiodistal direction at four different locations, and analyzed for leakage (dye ...

Wipe the surface with wax and grease remover to get it clean enough so nothing interferes i.e. fingerprints. The self-etching primer is usually gray or olive drab gray but the color is just there to show you where youve put it on and it is very thin and one thin coat is enough. Putting more of the primer wont make it work better. You can apply it over paint or bondo but it is only effective on bare metal. You can apply your high build primer or body filler over the self-etching primer but be careful it is not a finished product by it self ...

Background: Several studies possess investigated the result from the activation mode of adhesive systems on bond strength of dietary fiber posts to root canal dentin. the known degree of significance. Results: The best bond power was acquired for AdheSE dual-cure (15.54 6.90 MPa) and the cheapest was obtained for Excite light-cure (10.07 7.45 MPa) in support of the bond power between both of these adhesives had factor (= 0.02). Relationship strength decreased through the coronal towards the apical in every organizations which was significant in Excite (group 1) and AdheSE (group 3) (< 0.001). In apical areas, bond power of dual-cure adhesives was considerably greater than light-cure adhesives (< 0.001). Summary: Push-out relationship strength of dietary fiber post to different parts of main canal dentin was suffering from both adhesive systems and their polymerization settings. experimental research, 40 newly extracted human solitary canal central maxillary 742112-33-0 supplier tooth with 15 1 ...

A polymeric woven bag has a first panel and a second panel and an open end of the bag to be pinched closed. A first layer of heat activated adhesive material is on a portion of the bag to form an adhesive-to-adhesive seal by contact with a second layer of heat activated adhesive material on a portion of the bag. second panel, wherein the first adhesive layer and the second adhesive layer have respective heat activation temperatures below the softening point temperature of the polymeric bag material, and wherein sealing the bag end after the bag has been filled with contents by heat activating the first layer of adhesive material and the second layer of adhesive material at a temperature below the softening point temperature of the polymeric bag material.

The dentine adhesion has been reported as a challenge to restorative dentistry , mainly in stressful situations, such as the restoration of noncarious cervical lesions (NCCL). The retention of the restorative material in NCCL relies only on its adhesion to the non-retentive cavity, and the micromechanical adhesion between the adhesive system and dentine substrate still presents limitations that could jeopardize the longevity of adhesive restorations in long term . The loss of resin to dentine bond strength has been reported to occur mainly due to the degradation of the hybrid layer, and has been a problem that directly influences the longevity of the restoration. After etching, the adhesive system should completely penetrates the entire demineralized dentine, however, it does not totally occur, and collagen fibres remains unprotected and susceptible to metalloproteinases activity . The metalloproteinases (MMP) enzymes are latent within the dentine and can be activated at the time of dentine ...

TY - JOUR. T1 - A new blister test to measure bond strength of asphaltic materials. AU - Fini, E. H.. AU - Al-Qadi, I. L.. AU - Masson, J. F.. PY - 2007/12/1. Y1 - 2007/12/1. N2 - Approximately 60% of the U.S. annual national transportation budget is spent on pavement maintenance. One of the most common pavement maintenance treatments is crack sealing. Sealing pavement cracks significantly extends pavement service life, provided that an appropriate sealant is selected and properly installed. However, adhesion loss often leads to premature sealant failures. The adhesion quality and field performance of bituminous crack sealant cannot be predicted because the current test method (ASTM D6690) is empirical and only provides a qualitative measure of bond strength. Hence, there is a great need for test methods based on bituminous sealant rheology, which can better predict field performance. This paper presents the development of a pressure-loaded blister test and apparatus to measure the adhesion of ...

Su, L., Lu, C., Mcneice, T. & Tieu, A. K. (2010). Effect of nano-sized particles on bond strength in accumulative roll bonding. 2010 3rd International Conference on Nanoscience and Nanotechnology, ICONN 2010 (pp. 140-142 ...

Dive into the research topics of Effect of food and oral simulating fluids on dentine bond and composite strength. Together they form a unique fingerprint. ...

D6467-13e1 Standard Test Method for Torsional Ring Shear Test to Determine Drained Residual Shear Strength of Cohesive Soils reconstituted specimens~ torsional ring shear test~ cohesive soils~

is a top plan view of the orthodontic bracket wherein the swivel clip is shown in a third position of use.. The broken lines shown in the figures represent portions of the orthodontic bracket that form no part of the claimed design.. ...

|h2|4th Generation Dual Cure System|/h2| |h3|Hydrophilic|/h3| |h4|For bonding to dentin, enamel, porcelain, resins, precious and non-precious metal and amalgam.|/h4| |p|The original all-purpose adhesive system|/p| |p|This 4th generation adhesive system offers light cure and self-cure options. The adhesive primer and resin bonding agent are separate components. There is a unique metal primer, and the light cure resin bonding agent Part 1 can also be used to wet plastic instruments to prevent them from sticking to composites.|/p| |p|The patented PMGDM adhesive chemistry with the magnesium salt of NTG-GMA provides higher bond strengths than the earlier PMDM formulas.*|/p| |p||span class=caption|*Bowen RL, inventor. Patent Nos. 4,514,527; 4,521,550; 4,588,756; 4,659,751|br /|*Venz S, Dickens B. Modified surface-active monomers for adhesive bonding to dentin. J Dent Res 1993;73(3):582-86|br /|*Perdigao J, et al. Bons strengths of new simplified dentin-enamel adhesives. Am J Dent 1999;12(6):286-90|

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