MARGINAL MANDIBULECTOMY FOR ORAL TUMOR EXCISION

摘要

Benign odontogenic tumors may be successfully excised with a marginal mandibulectomy (mandibular rim excision). The benefits of this procedure over a partial or full mandibulectomy are mamtaining normal function (e.g. eating) and absence of mandibulardrift. Mandibular drift results in a traumatic malocclusion when the remaining mandibular canine tooth comes into contact with the palate. Peripheral odontogenic fibromas (previously termed fibromatous epulis) and acanthomatous ameloblastomas (previously acanthomatous epulis) are benign odontogenic tumors. Histological diagnosis of these tumors is generally done prior to surgery however in some situations the diagnosis (i.e. biopsy) and treatment (marginal mandibulectomy) may be done during the same procedure. This approach should be reserved for relatively small tumors when the owners understand that the tumor may not be an odontogenic tumor and the amount of tissue removed may not have been necessary.