Single photon emission computerized tomography and histological evaluation in the validation of a new technique for closure of oro-antral communication: an experimental study in pigs.

Various bone regeneration techniques have evolved recently but controversies regarding vascularization and integration of such bone grafting techniques have led occasionally to animal experiment to validate such techniques. The objective of this study was to evaluate the evidence of vascularization and osseo-integration of a new bone regeneration technique utilized for the closure of oro-antral communication (OAC) by an experimental model in which Single Photon Emission computerized Tomography and histological studies were conducted in pigs. We conclude that the sandwich technique used for the closure of OAC results in a vascularized new bone formation which eventually osseo-integrate with the surrounding bone. Also, this experimental study confirmed that autogeneous bone graft was superior to xenografts when used within the sandwich unit.

Odontogenic tumours from two centres in Jamaica. A 15-year review

This is the author's experience with odontogenic tumours in Jamaica during the 15-year period, 1980-1995, with special emphasis on the clinicopathological presentation, radiology and outcome of treatment. A retrospective review of histopathological reports, radiographs and case notes of patients with jaw tumours presenting to the Kingston Public Hospital and Cornwall Regional Hospital (the two hospitals in Jamaica with a maxillofacial surgery department) are presented. The study included 70 patients with histologically confirmed odontogenic tumours out of a total of 293 with tumours of the mouth and jaw, of which 123 were of odontogenic origin. We recorded the following; ameloblastoma (n = 47, 67, M:F = 1:1), recurrent ameloblastoma (n = 12, 17.1) odontogenic myxoma (n = 3, 4.3, M:F = 2:1), odontongenic fibroma (n = 2, 2.9, both female), adenomatoid odontogenic tumour (n = 3, 4.3 M:F = 1:2) ameloblastic fibroma (n = 2, 2.9, M:F = 1:1) and ameloblastic carcinoma (n = 1, 1.4, a male). Of all these tumours, only ameloblastomas recurred. Further research is required to explain the high incidence of ameloblastoma, and why it has a predilection for people of low socioeconomic status in Jamaica

Odontogenic tumours from two centres in Jamaica. A 15-year review.

This is the author's experience with odontogenic tumours in Jamaica during the 15-year period, 1980-1995, with special emphasis on the clinicopathological presentation, radiology and outcome of treatment. A retrospective review of histopathological reports, radiographs and case notes of patients with jaw tumours presenting to the Kingston Public Hospital and Cornwall Regional Hospital (the two hospitals in Jamaica with a maxillofacial surgery department) are presented. The study included 70 patients with histologically confirmed odontogenic tumours out of a total of 293 with tumours of the mouth and jaw, of which 123 were of odontogenic origin. We recorded the following; ameloblastoma (n = 47, 67%, M:F = 1:1), recurrent ameloblastoma (n = 12, 17.1%) odontogenic myxoma (n = 3, 4.3%, M:F = 2:1), odontongenic fibroma (n = 2, 2.9%, both female), adenomatoid odontogenic tumour (n = 3, 4.3% M:F = 1:2) ameloblastic fibroma (n = 2, 2.9%, M:F = 1:1) and ameloblastic carcinoma (n = 1, 1.4%, a male). Of all these tumours, only ameloblastomas recurred. Further research is required to explain the high incidence of ameloblastoma, and why it has a predilection for people of low socioeconomic status in Jamaica.

Benign fibro-osseous lesions of the jaw bones in Jamaica: analysis of 32 cases.

OBJECTIVE: It is intended to analyse all the cases of benign fibro-osseous lesions seen at the two major public hospitals in Jamaica over a 15-year period and to compare our result with what has been previously documented by other authors. No such analysis has been carried out in Jamaica or elsewhere in the English-speaking Caribbean. MATERIALS AND METHODS: The case files of patients histologically diagnosed to have a fibro-osseous lesion at both the Kingston Public Hospital and the Cornwall Regional Hospital in Jamaica from 1980 to 1995 were retrieved and information about these lesions was documented. The WHO classification for benign fibro-osseous lesions was used. RESULTS: A total of 32 cases of benign fibro-osseous lesions were recorded over the 15-year period. Of these, 15 were histologically reported as fibrous dysplasia, 10 as ossifying fibroma, three as gigantiform cementoma, one each as periapical cemental dysplasia and cementoblastoma, and two cases of recurrent fibrous dysplasia. With the exception of gigantiform cementoma the age at presentation for these lesions is not consistent and this can be particularly noted for ossifying fibroma and fibrous dysplasia, both of which occurred between the age of 10 and 68 years. CONCLUSION: These lesions are more common in females, furthermore it is suggested that the inconsistent age at presentation for some of these lesions may be peculiar to Jamaica, and may be due to delay in reporting a lesion by the patient, as routine dental examination is not a common practice.

Anaphylactic reaction following administration of lignocaine hydrochloride infiltration. Case report.

A case of progressive anaphylactoid reaction complicating a local anaesthetic agent administered to a dental patient is described. The management of the condition is discussed.