Regional odontodysplasia: an evaluation of three cases based on clinical, microradiographic and histopathological findings.
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Adolescent↗
Biomedical subjects
T A Gregg
Publications and source records attributed to T A Gregg.
Surgical division and pulpotomy of a double incisor tooth.
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Child↗
A comparative study of the gingival and lateral periodontal cysts.
The object of this study is to separate the gingival and the lateral periodontal cysts of adults using both clinical and histological features. It involved an investigation of 2 cases from each category. The distinguishing clinical feature was the ability to determine the involvement of the periodontal ligament at surgical exploration. The histological feature of note was the presence of plaque-like lining elevations in the lateral periodontal cyst. These appeared to be due to an oedematous change in the true intra-bony cyst lining, perhaps occurring during the process of cyst expansion.
Adult↗
Outcomes for root-fractured permanent incisors: a retrospective study.
PURPOSE: The objective of this study was to assess the outcomes for treated root-fractured permanent incisors with respect to pulp vitality, root tissue union, and tooth survival and to examine the effects of clinical and radiographic parameters and rigid splinting on the outcome. METHODS: Eighty-four teeth were identified and data extracted from case notes prior to transfer to an SPSS data base for analysis. The odds ratios for each factor were calculated and the significance of differences was determined. Tooth loss and relevant risk variables were examined using Cox's regression model and Kaplan-Meyer survival curves. RESULTS: Fourteen (17%) had fractures in the apical third, 47 (56%) in the middle third, and 23 (27%) in the coronal (gingival) third. Twenty-four (29%) also had crown fractures involving enamel and dentine. Crown fractures were identified as significant risk factors for pulp vitality. Loss of pulp vitality, horizontal displacement, and extrusive displacement of the coronal fragment were significant risk factors for hard root tissue union. Survival was poorest with gingival third fractures with 14 (61%) of these teeth being lost. Splinting rigidly had no significant effect on pulp vitality and type of root tissue healing. CONCLUSIONS: Loss of pulp vitality was significantly associated with enamel-dentine crown fracture. Hard root tissue union was significantly affected by pulp necrosis and luxation of the coronal fragment. Survival was poorest for root fractures within the gingival third of the root. Splinting with rigid fixation had no significant effect on pulp vitality and type of root tissue union.
Adolescent↗
A modified lighting system for dental photography.
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Dentistry↗
Recent advances in the management of patients with haemophilia and other bleeding disorders.
Much attention has been focused recently on barriers to dental care, particularly for patients with disabilities, from the perspective of the patient and the dental team. Treatment of patients with haemorrhagic disorders may cause a certain amount of anxiety in dental staff. The authors of this paper aim to reduce this anxiety by clarifying confusion between the haemorrhagic disorders and making recommendations concerning the dental care of such patients.
Dental Care for Chronically Ill↗