Repair potential in periodontal disease: the interproximal channel.

Interproximal channeling defects associated with lingual denudation of the root are often encountered in patients with insidiously progressive chronic periodontitis. Several cases of such lesions are described and their potential for repair demonstrated. It is suggested that this type of defect is predictably amenable to successful therapy by exposure and curettage, and that restoration of lost periodontal structures can be anticipated within the interproximal portion of the lesion.