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Results for “Tooth Avulsion”

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At least 181 records · Page 10Linked to original sources
PubMed1989

Endodontic endosseous implants: case reports and update of material.

Two cases are presented with 5-yr follow-ups in which Vitallium endodontic implants were used successfully to improve the crown-root ratio of central incisors compromised by trauma. A review of recent developments in endodontic implant materials and designs indicates that new materials should provide greater biocompatibility and retention.

Adolescent↗
PubMed1996

Incidence of pulp necrosis subsequent to pulp canal obliteration from trauma of permanent incisors.

Little long-term data are available on the frequency by which pulp canal obliteration (PCO) subsequent to trauma leads to pulp necrosis (PN). In this study, 82 concussed, subluxated, extruded, laterally luxated, and intruded permanent incisors presenting with PCO were followed for a period of 7 to 22 yr (mean 16 yr). At final clinical examination, 51% of the observed teeth responded normally to electric pulp testing (EPT). An additional 40% of the teeth although not responding to EPT were clinically and radiographically within normal limits. Yellow discoloration was a frequent finding. During the observation period, periapical bone lesions suggesting PN developed in seven teeth (8.5%). Twenty-yr pulp survival rate was 84%, as determined from life-table calculations. There was no higher frequency of PN in obliterated teeth subjected to caries, new trauma, orthodontic treatment, or complete crown coverage than intact teeth. Although the incidence of PN in teeth displaying PCO seems to increase over the course of time, prophylactic endodontic intervention on a routine basis does not seem justified.

Chi-Square Distribution↗
PubMed1997

Timing of extraction of ankylosed teeth to maximize ridge development.

Retaining an ankylosed replanted tooth during jaw growth leads to arrested development of the associated alveolar ridge. As the adjacent teeth erupt and the adjacent alveolar ridge develops, the ankylosed tooth is left in infraocclusion. The severity of the resulting ridge defect depends on the amount of facial growth after ankylosis. The extent of the defect correlates with the length of time an ankylosed tooth is retained during adolescent rapid growth. This case report illustrates the development of an extensive alveolar ridge defect when a replanted tooth became ankylosed and was allowed to remain through an adolescent growth spurt. The change in tooth position is dramatic and reflects the marked difference in ridge development. Clinical guidelines are presented to determine the optimal timing of extraction of ankylosed teeth to maximize alveolar ridge development.

Adolescent↗
PubMed1997

Determination of periodontal ligament cell viability in the oral rehydration fluid Gatorade and milks of varying fat content.

The purpose of this study was twofold: 1) to determine if the oral rehydration fluid Gatorade could serve as a suitable temporary storage medium for maintenance of periodontal ligament (PDL) cell viability on avulsed teeth and 2) to determine if fat content is related to maintenance of cell viability when milk is used as the temporary storage medium. PDL cells were cultured from extracted human teeth then incubated over timed intervals from 15 to 210 min in the oral rehydration fluid Gatorade, milks of varying fat content, and saliva. Dulbeco's Modified Eagles Medium served as the positive control while tap water served as the negative control. Cell viability was determined using a colorimetric assay that used Cell Proliferation Reagent WST-1. Results using Gatorade yielded cell viability data similar to the negative control, tap water, indicating that this oral rehydration fluid was not suitable as a temporary storage medium for the avulsed tooth. However, the fat content of milk was found to have an effect on cell viability, suggesting that milks with lower fat content may be more appropriate for maintaining PDL cell viability than milks with higher fat content.

Animals↗
PubMed1998

A clinical study using the collagen gel Zyplast in endodontic treatment.

The use of a collagen gel as a hard tissue induction material in fractured and undeveloped teeth is reviewed. Three of four cases demonstrate a modest amount of hard tissue formation within the pulp space previously occupied by the collagen gel. Limitations in positive results, compared with a previous animal study and one clinical case report, are probably due to the pre-existence of infection in the present study.

Adolescent↗
PubMed1998

Endodontic diagnosis in dogs.

Complete endodontic evaluation should diagnose endodontic involvement, provide a treatment plan, and evaluate the true success or failure probabilities. Evaluation of the age, physical and oral health of the patient, the endodontic anatomy, clinical and radiographic findings can provide a treatment plan and a predictable prognosis.

Animals↗
PubMed1998

Emergency treatment of orodental injuries: a review.

There has been an increase in the incidence of injuries to the incisor teeth in the primary and permanent dentitions over the last decade; one study reported that roughly 35% of 9-year-old children will have damaged their teeth in some way. Much has been written about dental injuries, and there may be confusion about the appropriate emergency treatment for different types. Classification and understanding of the types of injury are essential before diagnosis and treatment can be undertaken. Although dental injuries can occur singly, they more usually involve a combination of injuries to a tooth and its supporting structures. Prompt, accurate diagnosis and appropriate emergency treatment as outlined in this paper will greatly improve the prognosis for many dentoalveolar injuries. The aim must be to ensure that the third of the population of preteenage children who damage their teeth are not resigned to loss of an incisor in later life because of inaccurate diagnosis and poor treatment of the emergency condition.

Child↗
PubMed1991

[Tooth injuries during intubation: a new preventive device].

This study analyses 126 cases of dental injuries occurring during endotracheal intubation, reported to the service of litigations of the hospitals in Lyon over a ten-year period, and giving rise to a complaint. The overall rate was 1 out of 4,000 cases of intubation. The true incidence may be greater. As expected, the upper jaw teeth are most often involved, especially the left incisors. Among them 24.3% of the involved teeth were normal. Dental fractures were the most common lesion, together with total or partial dislocations. A questionnaire was sent to 534 anaesthetists to assess the main difficulties which they encounter when carrying out endotracheal intubation. The results of this enquiry demonstrated that anaesthetists were very aware of dental risks when carrying out intubation, and that there was a lack of efficient protective measures. Among them 81.2% claimed they would use a protective device from time to time, and 17.4% routinely, if one were available. Therefore we designed such a device. It is gutter-shaped, made with two different plastics, the more rigid one being on the outside. It fits over the upper jaw teeth. There is an indentation in the front, to check whether the device is placed correctly. The inner surface is made of foam which dulls the pressure which may be exerted on the device during intubation. This device was tested in 108 patients. Intubation was easy with the device in place in 73.2% of patients; mouth opening was reduced by a mean of 4.2 +/- 0.5 mm. The device made intubation more difficult, and even impossible, in patients whose mouth opened no more than 3.5 cm.(ABSTRACT TRUNCATED AT 250 WORDS)

Dental Implants↗
PubMed1988

Comparison of the flexibility of various splinting methods for tooth fixation.

An experimental model was constructed to test the flexibility of the arch bar splint and the Schuchardt splint as compared with a newly introduced wire-composite splint. Vertical movement in 4 flexible incisors was tested by producing compressive forces between 15-95 Newtons on the incisal edges. The thinnest wire-composite splint was also tested for lateral flexibility by producing palatal forces from 2 angles. Movement without the splint served as the control. The tests showed that a 0.3 mm thick wire-composite splint had the flexibility closest to the control, followed by the arch bar splint, and 0.4 mm and 0.5 mm wire-composite splints, while the Schuchardt splint virtually prevented vertical movement. Lateral movement was markedly reduced by the 0.3 mm wire-composite splint as compared with the control with both a 10 degree and a 45 degree force. The experiments showed that a 0.3 mm wire-composite splint can be regarded as acting as a functional fixation allowing slight vertical movement of the teeth during immobilisation; it should be recommended for tooth fixation whenever possible.

Composite Resins↗