(1/158) A combined frontal and maxillary sinus approach for repulsion of the third maxillary molar in a horse.

The 3rd maxillary molar is a difficult tooth to remove by extraction or repulsion. A combined frontal and maxillary approach provides good exposure for repulsion of this tooth, debridement of the sinuses, and placement of an alveolar seal. The improved exposure should minimize operative difficulties and postoperative complications.  (+info)

(2/158) Dental abnormalities in rats after a single large dose of cyclophosphamide.

Delayed drug-related mortality in rats treated with a single high dose (75 mg/kg) of cyclophosphamide complicated experiments using this drug treatment. We observed that this delayed mortality was due to dental abnormalities including broken teeth, absent teeth, extra long teeth, and/or supernumerary teeth. These dental abnormalities developed about 140 days after treatment and, if left untreated, interfered with eating. Eventually, the untreated rats starved. Clipping their long teeth and feeding the rats powdered chow eliminated the deaths. Researchers should be aware that high doses of cyclophosphamide may result in dental abnormalities several months after the treatment.  (+info)

(3/158) Good occlusal practice in children's dentistry.

The difference between paediatric dentistry and most other branches of dentistry is that in the child the occlusion is changing. Consequently 'Good Occlusal Practice' in children is a matter of making the right clinical decisions for the future occlusion. The clinician needs to be able to predict the influence that different treatment options will have on the occlusion when the child's development is complete.  (+info)

(4/158) Effect of tubule orientation and dentin location on the microtensile strength of bovine root dentin.

To investigate the mechanical properties of root dentin and to further clarify the cause of vertical root fracture (VRF), this study evaluated the effect of tubule orientation (parallel, perpendicular and oblique to the cross-section of dumbbell specimens in microtensile tests) and dentin location (cervical, middle, and apical location of the root) on the microtensile strength of bovine root dentin. Each specimen was stressed in tension at a crosshead speed of 1.0 mm/min. The results of the microtensile strength measurements were statistically analyzed with one-way ANOVA and the Fisher PLSD. The oblique group (95.18+/-23.80 MPa) was significantly (p<0.01) higher than the parallel group (38.93+/-5.28 MPa) or the perpendicular group (32.64+/-4.69 MPa). There were no significant differences among the different dentin locations within the parallel group (p>0.05). It was clarified that the VRF occurs frequently in practical situations due to the tubule orientation of root dentin.  (+info)

(5/158) A modified impression technique for accurate registration of peri-implant soft tissues.

Replacement of single missing teeth with an implant-supported restoration is recognized as a highly successful treatment. An impression technique for peri-implant soft-tissue replication in an anterior zone is described. The technique involves use of an interim restoration as an abutment for the final impression. This allows accurate duplication of the soft tissues and fabrication of a final restoration with the correct emergence profile.  (+info)

(6/158) Unusual migratory foreign body in the neck.

Reports of ingested foreign bodies penetrating the pharynx and migrating through the neck are rare, and mostly involved fish bones. We describe a 44-year-old man who was involved in a motor vehicle accident and accidentally swallowed his tooth. The swallowed tooth penetrated the pharynx and became lodged adjacent to his right thyroid gland. It was successfully removed via neck exploration and the patient recovered well.  (+info)

(7/158) Effect of the ferrule on fracture resistance of teeth restored with prefabricated posts and composite cores.

BACKGROUND: The ferrule effect in root treated teeth requiring cast posts and cores has been shown to greatly improve fracture resistance. Studies have also shown that in the case of a cast post and core, the longer the ferrule, the greater the fracture resistance. However few studies have considered the effect of different ferrule designs on prefabricated post and composite core systems. AIM: This study investigated the effect of different ferrule designs on the fracture resistance of teeth incorporating prefabricated posts and composite cores. It also assessed the necessity of a post in the restoration of endodontically treated teeth. METHODOLOGY: Sixty-two extracted maxillary incisors (centrals and laterals) and canines were randomly assigned into three groups and restored. Two groups had a prefabricated post and composite core with varying ferrule designs. A third group had a core with composite packed into the root canal but no post. An Instron universal testing machine was used to apply compressive loads until failure occurred. RESULTS: There was no significant difference amongst the three groups as regards fracture resistance. The two groups with prefabricated posts and composite core required a mean force of 931N, std +/-283 and 931N, Std +/-242 to fracture. The third with no post group required a mean force of 1036N, std +/-269 to fracture. CONCLUSION: In the restoration of an anterior endodontically treated tooth with a prefabricated post and composite core and where there is at least 2 mm or more of remaining coronal dentine, a ferrule may not be necessary.  (+info)

(8/158) Orthodontic extrusion: periodontal considerations and applications.

Human teeth erupt naturally to compensate for tooth wear and tear. When a subgingival lesion such as crown fracture occurs, the general practitioner must consider orthodontic extrusion of the tooth to allow for prosthetic rehabilitation. However, because this therapeutic approach is not appropriate in all cases, each tooth must be carefully analyzed before treatment. The amount of force applied depends on the desired effect. Orthodontic extrusion can also be used to augment bone and tissue in the course of preparing an implant site. In most cases, endodontic treatment must be completed first, with close attention being paid to the contour of the final restoration. The benefits of extrusion are clear, but patients must nonetheless be informed of the disadvantages.  (+info)



extraction


  • Most fractures cannot be repaired and require extraction. (medhelp.org)
  • Extraction may be recommended if the tooth or root cannot be repaired, followed by a sealing of the affected area with a restorative material or lining. (petmd.com)
  • Once a tooth has a root fracture it is deemed nonrestorable and will need an extraction. (realself.com)
  • Fractured Teeth in dogs and cats need to be treated with extraction or root canal therapy. (littlemountainvet.com)
  • If the fracture is too far below the gumline, it is unrestorable and requires extraction. (drmoats.com)
  • A dentist can identify the source of the abscess, prescribe painkillers and antibiotics, and treat the abscess itself (i.e. through draining, root canal, or tooth extraction). (wikihow.com)
  • This study assessed the effectiveness of using an oxidized cellulose dental dressing to reduce the rate of alveolar osteitis after posterior tooth extraction in smokers. (agd.org)

trauma


  • A tooth may be broken, for instance, by chewing on a hard object, a blunt force trauma to the face, or a minor automobile collision. (petmd.com)
  • Tooth Trauma - Uncomplicated Crown Fracture - What Now? (richmondoms.com)
  • Tooth trauma can happen at any time. (richmondoms.com)
  • The goal in treating a tooth trauma case is always to maintain or regain pulpal vitality in the affected tooth/teeth. (richmondoms.com)
  • In the previous tooth trauma entry we covered: avulsion (when a tooth is out of the socket). (richmondoms.com)
  • In this entry we will investigate a different kind of tooth trauma: an uncomplicated crown fracture. (richmondoms.com)
  • Abscesses result from severe tooth decay, ignored cavities, or trauma to the tooth. (wikihow.com)

Causes


  • The causes of tooth fractures include chewing on rocks, bones, antlers, very hard toys, fighting with other dogs or cats, catching rocks thrown in the air by people, and accidents (hit by cars). (littlemountainvet.com)
  • Today's stress-filled life causes many of us to clench and grind our teeth and, sadly, that can cause fractures, which are the worst issue we currently treat. (precisionendodonticswny.com)
  • A tooth abscess is a painful bacterial infection that causes pus to gather at the root of the tooth or between the tooth and the gums through a small hole resulting from the bone infection. (wikihow.com)
  • Gum disease causes the space between the tooth and the gum to widen, which allows bacteria to enter. (wikihow.com)

progresses


  • Early diagnosis may help save the tooth before the fracture progresses. (westfloridahospital.com)
  • This infection progresses down to the deepest part of the root of the tooth and into the bone where it becomes an abscess. (littlemountainvet.com)

occur


  • These injuries occur either on the enamel-covered top portion of the tooth (the crown) or the part below the gum line (the root). (petmd.com)
  • Teeth can also be fractured with a blow to the face that can occur with a car accident or during a sporting event. (westfloridahospital.com)
  • These types of fractures occur for various reasons, such as biting down on very hard foods or foreign objects, the presence of a previous filling in the tooth, or a tooth that had root canal therapy that was not treated with a crown. (drmoats.com)
  • Vertical root fractures are not a very common type of fracture and usually occur in teeth that have had root canal therapy. (drmoats.com)
  • If the tooth is still vital, the process of reattaching the segment of tooth and the subsequent bonding will occur. (richmondoms.com)

Symptoms


  • Not all tooth fractures cause symptoms. (westfloridahospital.com)
  • [2] Although you might not experience any symptoms initially, a tooth abscess can cause serious medical problems. (wikihow.com)
  • Failure of endodontic treatment or retreatment, evidenced by recent or persistent clinical or radiological signs of LEO and/or symptoms on a tooth in which the root canal filling looks to be of sufficiently good quality, provided that a working coronal restoration is in place. (clinicaltrials.gov)

pulp exposure


dental


  • Crowns and other additive dental work can be applied to repair the damaged tooth, including the use of surgery when the damage is severe. (petmd.com)
  • Typically, your best option for replacing this tooth would be by placing a dental inplant. (realself.com)
  • Once you reach the dental professional, the rehydrated piece of tooth will be easier to bond, as the hydration increases its bonding strength. (richmondoms.com)
  • Remember: chipping your tooth mildly may not always be a dental emergency but you should call or see us right away so we may help you determine this. (richmondoms.com)
  • If you have an untreated cavity or a tooth fracture that reaches the dental pulp (inner part of your tooth), you risk developing an abscess. (wikihow.com)
  • This happens when bacteria reaches your dental pulp, which is the inside of your tooth. (wikihow.com)

exposure


  • Left) The left upper fourth premolar in this Chihuahua has a complicated crown fracture with exposure of the pulp (the pink spot). (littlemountainvet.com)

bone


  • Vertical root fractures may not be noticed until a bone or gum infection develops. (westfloridahospital.com)
  • The tooth rarely separates into two pieces because the tooth is held in position by the surrounding bone. (drmoats.com)
  • This involves gaining access to the root tip within the bone and removing the part of the root that is fractured. (drmoats.com)
  • The fractured root is generally entirely below the gumline and usually completely within the bone. (drmoats.com)

extent


  • To review the full extent of the tooth fracture, your veterinarian will take X-rays of the cat's mouth. (petmd.com)
  • We first examine a cracked tooth microscopically to determine the crack's extent and exact location and prepare minor, superficial cracks for immediate restorative treatment by your dentist. (precisionendodonticswny.com)
  • You did not mention the extent of comminution or deviation of your nasal fracture and how long ago it was surgically reduced. (realself.com)

gums


  • Any damage or irritation to the gums can be detected during routine brushing or cleaning of the teeth. (petmd.com)
  • The reason it usually can't be repaired is because fracture usually is below the gums and then not enough tooth left to support new crown. (realself.com)
  • You need a certain amount of tooth structure above the gums and usually the tooth fractures too far below gums to make restoring it possible. (realself.com)

bacteria


  • Other fractures may expose the sensitive pulp to fluid, food, and bacteria in the mouth. (westfloridahospital.com)
  • When fracture opens up the pulp bacteria from the mouth enter the pulp and infects to inside of the tooth. (littlemountainvet.com)
  • As cracks widen, bacteria can get into your tooth and can cause infection. (precisionendodonticswny.com)
  • It often occurs as pus produced by bacteria that reached your pulp compresses the nerves in your teeth. (wikihow.com)
  • This bacteria can cause an abscess, even if the teeth are healthy and cavity-free. (wikihow.com)

infection


  • The most common complication involving a tooth fracture is inflammation and infection. (petmd.com)

prognosis


  • This is the most common type of tooth fracture and has the best long term prognosis. (drmoats.com)
  • The prognosis for this type of crack is fair but it depends on how deep the crack extends into the internal aspect of the tooth. (drmoats.com)
  • The tooth might be able to be treated with endodontic therapy and root amputation if the remaining roots are strong and healthy, but the overall prognosis is poor. (drmoats.com)

veterinarian


Root


  • I had a root canal done several months ago, a crown put on and vola the tooth next to it got infected and had to be pulled. (medhelp.org)
  • He removed the crown on the tooth that had the root canal and I believe it is fracture. (medhelp.org)
  • Otherwise, cats with root fractures display constant discomfort and pain. (petmd.com)
  • A root canal clears out the damaged pulp and places a new filler in the tooth. (westfloridahospital.com)
  • Not if the root itself is fractured. (realself.com)
  • This usually occurs when a tooth has had a root canal and a metal post placed in it. (realself.com)
  • If the root is fractured, it will have to be extracted and an implant is a great option for you. (realself.com)
  • It sounds as though your dentist has determined that the crown is loose because you have a fracture in the root of your tooth. (realself.com)
  • This tooth was treated with a root canal, crown lengthening and a metal crown was used to protect the tooth. (littlemountainvet.com)
  • This tooth was treated with a root canal. (littlemountainvet.com)
  • If the fracture extends into the middle part of the tooth, root canal therapy would be required in addition to a crown. (drmoats.com)
  • The options are to treat the tooth with a root canal followed by a build up, post and crown or to extract the tooth. (drmoats.com)
  • A split root fracture, also known as a subgingival oblique fracture, can be restorable depending upon where the fracture ends. (drmoats.com)
  • The tooth may also require root canal treatment. (drmoats.com)
  • Oblique Root Fractures are fractures that are limited to the roots of teeth with the crown portion intact. (drmoats.com)
  • If the fracture is close to the tip of the root as shown by number 2 in the diagram, the tooth may be restored with root canal therapy. (drmoats.com)
  • A root canal cannot be performed on a fractured root tip and the body tends to resorb the untreated piece. (drmoats.com)
  • You tripped, you fell and now you have found yourself with a part of your tooth broken and the root exposed. (richmondoms.com)
  • A complicated crown/root fracture is common in trip and fall injuries. (richmondoms.com)
  • In this form of fracture, the crown is fractured with the fracture extending below the gum line, involving the root of the tooth. (richmondoms.com)
  • Complicated crown/root fracture is the most challenging type of fracture to treat. (richmondoms.com)
  • There are instances in crown/root fractures where a gingiovectomy may be necessary in order to ensure that the tooth can be properly restored. (richmondoms.com)
  • Permanent immature single-root tooth having suffered periodontal or dentoalveolar injury causing pulp necrosis with or without periapical disease (LEO) in children, teenagers or adult patients. (clinicaltrials.gov)

extends


  • The line of the fracture extends below the gum line. (littlemountainvet.com)
  • This tooth has a vertical crack that extends vertically into or toward the furcation. (drmoats.com)

nerves


abscess


  • A pericoronitis abscess is one that can be located near the lower wisdom teeth. (wikihow.com)

protect the tooth


crown


  • Crown-a cap is placed over the tooth. (westfloridahospital.com)
  • I have a crown on my front tooth which is loose. (realself.com)
  • I have a crown on a post on front tooth which is loose. (realself.com)
  • It is not uncommon but the tooth can fracture after having a post and crown. (realself.com)
  • Treatment for this type of fracture is to place a crown on the tooth. (drmoats.com)
  • If the fracture is not too far below the gumline, the tooth can be restored with a procedure called crown lengthening, followed by adding a crown. (drmoats.com)
  • If the fracture is close to the crown as shown by number 1 in the diagram to the right, the tooth is usually unrestorable. (drmoats.com)
  • In this tooth fracture, the damage is limited to the crown of the tooth. (richmondoms.com)

grind


molar


  • This video shows x-rays of the upper right and left molar teeth at the back of the mouth in this dog. (littlemountainvet.com)

make your teeth


  • Abscesses also can make your teeth sensitive to hot and cold temperatures. (wikihow.com)

dentist


  • Your dentist will look for the fracture based on your feedback. (westfloridahospital.com)
  • Dentist says tooth fractured so will need extracting and implant put in. (realself.com)

dentin


  • Injuries involving damage to the tooth's enamel , dentin , and cement are referred to as tooth fractures. (petmd.com)

injuries


  • Both dogs and cats are susceptible to traumatic tooth injuries. (petmd.com)

vitality


  • We will work quickly in order to assess the vitality of the tooth. (richmondoms.com)

Typically


  • This is the kind of fracture we typically see portrayed in movies. (richmondoms.com)

treatment


  • It is important to monitor your cat's progress following treatment, and to continue with regular tooth care and cleaning. (petmd.com)
  • The treatment will depend on the severity of damage to the tooth. (westfloridahospital.com)
  • Ignoring these issues is not an option - the tooth needs treatment. (littlemountainvet.com)

enamel


common


  • The most common cause of a tooth fracture is a traumatic event or injury. (petmd.com)
  • Tooth fractures are more common in older adults because teeth wear down over time. (westfloridahospital.com)

roots


  • The furcation, which is where the arrow is pointing, is the place where the tooth splits into two or more separate roots. (drmoats.com)

type


  • Depending on the type of fracture, the tooth may not cause any problems or it may cause pain. (westfloridahospital.com)
  • In this type of fracture, a part of the tooth can completely break off and, occasionally, no pain is felt after the tooth fractures. (drmoats.com)

cannot


swollen


  • [4] The entire area around the tooth may look red and swollen. (wikihow.com)

pain


  • You may notice a throbbing pain around the tooth or a shooting or gnawing pain in that area. (wikihow.com)
  • Your tooth pain could cause sleeplessness. (wikihow.com)
  • The pain may be localized around the tooth, but it can also radiate to the ears, jaws, and cheeks. (wikihow.com)
  • The pain may be accompanied by a sense that your tooth is moving. (wikihow.com)

cause


  • Prevent your cat from chewing on extremely hard substances, such as rocks, as this can damage the structure of the tooth or cause tooth breakage. (petmd.com)

Avoid


depend


  • went in fact your health can depend on good teeth. (medhelp.org)

identify


long time


  • The fracture happened a long time ago and was found during a routine physical exam. (littlemountainvet.com)

treat


routine


  • The first time I went for routine 'work' on my teeth I wound up with MRSA. (medhelp.org)

left