Abstract
The methods of reconstruction which have established themselves in major intra-oral malignancy have certain features in common. They require no prior preparation such as preliminary delay and so an appraisal of the likely defect in terms of its several components, mucosa, soft tissue, bone and even skin, is required only in the most general way. They use tissue at a distance from the mouth and neck so that the accepted methods of surgical or even radiotherapeutic treatment are entirely compatible with them. Intra-oral tumors often are single lesions, but they can also arise in a multifocal manner and the reconstructive problems presented by the 2 are quite different. The multifocal neoplastic lesion with field change in the mucosa presents clinically as ''leukoplakia'' and the much more significant clinical appearance of erythroplasia. It is the marginal extent of the condition which becomes important in excision and which creates the problems of reconstruction.

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