Dental composite resins (better referred to as "resin-based composites" or simply "filled resins") are dental cements made of synthetic resins. (wikipedia.org)
Resin-based composites are on the World Health Organization's List of Essential Medicines. (wikipedia.org)
Traditionally resin-based composites set by a chemical setting reaction through polymerization between two pastes. (wikipedia.org)
To overcome the disadvantages of this method, such as a short working time, light-curing resin composites were introduced in the 1970s. (wikipedia.org)
These microfilled composite resins also showed a better clinical colour stability and higher resistance to wear than conventional composites, which favoured their tooth tissue-like appearance as well as clinical effectiveness. (wikipedia.org)
The Hybrid Period Hybrid composites were introduced in the 1980s and are more commonly known as resin-modified glass ionomer cements (RMGICs). (wikipedia.org)
The material was introduced, as resin composites on their own were not suitable for Class II cavities. (wikipedia.org)
Bond Strength of Silorane- and Methacrylate-Based Composites to Resin-Modified Glass Ionomers. (louisville.edu)
Taken together, when C-factor increased from 1.8 up to 3.4 had no significant effect on gap formation in two tested resin composites. (docksci.com)
Siloranebased composite was more efficient for cavity sealing than methacrylate-based composites and resin modified glass ionomer. (docksci.com)
Introduction The mechanical characteristics of light-curing resin composites are responsible for their utilization in both anterior and posterior restorations. (docksci.com)
This study aimed to determine the effect of PH on the flexural strength of bulk-fill and conventional resin-based composites (RBCs). (ac.ir)
Estrogenicity of resin-based composites and sealants used in dentistry. (nih.gov)
We tested some resin-based composites used in dentistry for their estrogenic activity. (nih.gov)
Material and Methods: The present study used two different composites and modeling resins. (bvsalud.org)
CANGUL S., ERPACAL B., ADIGUZEL O., UNAL M., GUNAY A., 2021: Effect of Surface Wetting Resin on the Color Stability and Microhardness of Esthetic Composites. (bvsalud.org)
Recently, manufacturers have started using modeling resins, in order to facilitate the transport, adaptation, Composite resins are frequently used for and shaping procedures pertaining to composites. (bvsalud.org)
Composite resin restorations5
Funded by the National Institutes of Health, the New England Children's Amalgam Trial measured neuropyschological and renal functioning in 534 children who were randomly assigned to receive either amalgam or composite resin restorations. (medscape.com)
The original report of the New England Children's Amalgam Trial noted that children with composite resin restorations had lower psychosocial scores than children with amalgam restorations, but the finding did not get much attention at the time. (medscape.com)
The children in the study received 2 different types of composite resin restorations. (medscape.com)
The decision for repair and/or replacement of composite resin restorations is one of the challenges in dental practice. (drjjournal.net)
Abstract Aim: Polymerization shrinkage is one of the important factors in creation of gap between dental structure and composite resin restorations. (docksci.com)
Restorations9
July 16, 2012 - Children with restorations made with bisphenol A-glycidyl methacrylate (bisGMA)-based composite resins may have more emotional and social problems than children with other types of restorations, according to results of a new study published online July 16 and in the August issue of Pediatrics . (medscape.com)
And some critics of amalgam restorations argue that dentists should use composite resins on a "better-safe-than-sorry" principle. (medscape.com)
They noted stronger associations between composite resins on the occlusal surfaces of posterior teeth and BASC-SR psychosocial scores, and they suggested that these restorations were more likely to degrade as a result of chewing. (medscape.com)
Many studies have compared the lesser longevity of resin-based composite restorations to the longevity of silver-mercury amalgam restorations. (wikipedia.org)
In comparison to amalgam, the appearance of resin-based composite restorations is far superior. (wikipedia.org)
Initially, resin-based composite restorations in dentistry were very prone to leakage and breakage due to weak compressive strength. (wikipedia.org)
As a restorative material, composite resins have certain advantages including esthetics, bonding to tooth structure, high conservative restorations, and possibility of repair in case of fracture. (drjjournal.net)
Restorative resin bonding systems based on silorane chemistry instead of methacrylate chemistry show resistance to degradation by esterase and pH activity, which may allow these restorations to last longer in the oral cavity, but there is insufficient research available to show longevity of oxirane/siloxane based resins and bonding systems in clinical situations. (uthscsa.edu)
Oxirane/silorane restorations have great potential to extend the longevity of resin restorations through resistance to esterase and pH degradation, but more long-term clinical trials are needed to prove they are an improvement on methacrylate restorations. (uthscsa.edu)
Adhesive1
The goal of this study is to determine the effect of different sandblasting particles and dental adhesive systems on the repair strength of dimethacrylate-based composite resins. (drjjournal.net)
Microhardness3
Conclusion: The silorane-based resin showed Knoop microhardness values significant smaller than those of methacrylate-based resin in almost all evaluated parameters. (bvsalud.org)
ABSTRACT: Objective: The aim of this study was to evaluate and compare the effects of the superficial application of two different modeling resins on the surface microhardness and discoloration of composite resins. (bvsalud.org)
Conclusions: The results of the present study demonstrated that the use of modeling resins, which facilitate the placement of composite resins, reduced the microhardness and discoloration of composite resins. (bvsalud.org)
Methacrylate6
Objective: The durability of bonded interface between silorane (SIL) and methacrylate-based (MET) composite resins wasn t investigated yet. (bvsalud.org)
However, silorane-based bonding systems (Filtek LS) degraded less than methacrylate-based systems (Z100). (uthscsa.edu)
Validity: Oxiranes are known for their unique ring-opening properties which allow for lower curing shrinkage than methacrylate resins. (uthscsa.edu)
The siloxane molecule is a hydrophobic monomer which lacks the degradation-prone ester linkages found in methacrylate resins. (uthscsa.edu)
Sucrose-pulsed biofilms induced reductions in bond strength for both materials, but the magnitude of the change was greater for methacrylate-based resin/bonding systems over silorane-based systems. (uthscsa.edu)
The in vitro studies show the potential for oxirane (silorane) resins to last longer in the oral cavity than methacrylate resins. (uthscsa.edu)
Glass ionomer5
This mixture or resin and glass ionomer allows the material to be set by light activation (resin), allowing a longer working time. (wikipedia.org)
Effect of configuration factor on gap formation in hybrid composite resin, low-shrinkage composite resin and resin-modified glass ionomer. (docksci.com)
The aim of this study was to evaluate the effect of configuration factor (C-factor) on gap formation in a hybrid composite resin, a low shrinkage composite resin and a resin modified glass ionomer restorative material. (docksci.com)
Each group contained three subgroups depend on the different depths and then cavities restored using resin modified glass ionomer (Fuji II LC Improved) and two type composite resins (Filtek P90 and Filtek Z250). (docksci.com)
3M ESPE), and a resin-modified glass ionomer (Fuji II LC Improved GC, Tokyo, Japan). (docksci.com)
Shrinkage2
Introduction: The silorane-based resin appears aiming to minimize the effects of polymerization shrinkage, but other properties must be studied. (bvsalud.org)
Today's composite resins have low polymerization shrinkage and low coefficients of thermal shrinkage, which allows them to be placed in bulk while maintaining good adaptation to cavity walls. (wikipedia.org)
Dentistry2
Silorane resins and their use in dentistry are still in a fairly early stage. (uthscsa.edu)
The use of bis-GMA-based resins in dentistry, and particularly the use of sealants in children, appears to contribute to human exposure to xenoestrogens. (nih.gov)
In addition, demands for esthetic treatments on anterior teeth are increasing and composite resins are among the materials used for these treatment plans. (drjjournal.net)
Clinical1
Composite resins were also seen to be beneficial in that the resin would be presented in paste form and, with convenient pressure or bulk insertion technique, would facilitate clinical handling. (wikipedia.org)
Resinas1
Las resinas compuestas se colocaron en moldes de plástico. (bvsalud.org)
Dental1
The combination of the oxirane and siloxane results in a dental resin called silorane. (uthscsa.edu)
Dentin2
In the other half, composite buildups (Opallis) were constructed incrementally to create resin-dentin sticks with a cross-sectional area of 0.8 mm² to be tested in tension (0.5 mm/min) immediately after restoration placement. (bvsalud.org)
Resin-dentin bond strength decreased and dentin demineralization increased for both composite resin systems when challenged with biofilm and sucrose pulsing. (uthscsa.edu)
Mechanical2
Composite resins displayed superior qualities, in that they had better mechanical properties than silicates and unfulfilled resins. (wikipedia.org)
Microleakage, discolorations, technique sensitivity, low mechanical properties, and risk of restoration fracture are among the limitations of composite resins. (drjjournal.net)
Material1
Composite resins are most commonly composed of Bis-GMA and other dimethacrylate monomers (TEGMA, UDMA, HDDMA), a filler material such as silica and in most applications, a photoinitiator. (wikipedia.org)
Lower1
The resin P90 had lower hardness values. (bvsalud.org)
Increasing C-factor from 1.8 to 3.4 had no effect on the gap formation in two type composite resins, but Fuji II LC Improved showed significant effect of increasing C-factor on gap formation. (docksci.com)
Time3
The data were analyzed by four-way ANOVA (resin, energy density, depth and time) and Tukey test (α = 0.05). (bvsalud.org)
The Traditional Period In the late 1960s, composite resins were introduced as an alternative to silicates and unfulfilled resins, which were frequently used by clinicians at the time. (wikipedia.org)
The faults with composite resins at this time were that they had poor appearance, poor marginal adaptation, difficulties with polishing, difficulty with adhesion to the tooth surface, and occasionally, loss of anatomical form. (wikipedia.org)
Combination1
Polymeric resins containing a combination of SILOXANES and OXIRANES . (nih.gov)
Bond1
Shear Bond Comparison between 4 Bioceramic Materials and Dual-cure Composite Resin. (louisville.edu)
Groups1
Subsequently, the modeling resins were applied on the surface of the two composite groups. (bvsalud.org)