Studies in the Regeneration and Reattachment of Supporting Structures of the Teeth

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Abstract
A survey of the literature reveals a sharp cleavage of opinion on the possibility of functional regeneration and reattachment of the supporting structures of the teeth after these tissues have been lost during the course of periodontal disease. In dogs with healthy supporting structures, re-attachment of the gingival tissues was secured where the detachment of the soft tissues and loss of alveolar bone was effected by surgical means. The connective tissue of the gingiva was re-attached by the formation of new cellular cementum on the denuded and scaled root surface. New cementum was laid down on the old cementum or directly on dentine. Uneven resorption of both cementum and dentine appeared to have taken place prior to cemental apposition. A new cementoblast layer could be discerned by approx. the 16th day, appearing first at the base of the lesion. Only in those cases where connective tissue re-attachment failed did the oral epithelium proliferate rootwise forming an epithelialized pocket. What appeared to be the regeneration of a small amt. of alveolar bone was observed in many of the sections where re-attachment was secured.
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