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Patent accessory canals: Incidence in molar furcation region

1973; Elsevier BV; Volume: 36; Issue: 4 Linguagem: Inglês

10.1016/0030-4220(73)90316-2

1878-2175

J.V. Lowman, Robert S. Burke, George B. Pelleu,

Oral and Maxillofacial Pathology

Forty-six extracted maxillary and mandibular molars were examined in order to determine the incidence of accessory canals in the coronal and middle thirds of the root surface. A radiopaque dye was drawn through the root canal system under vacuum, and the teeth were radiographed at various angles. Patent lateral or accessory canals were present in the coronal and middle thirds of 59 per cent of the molars. The results of this study suggest that lesions that involve the furcation region of multirooted teeth may have an endodontic as well as a periodontal origin. This possibility should be considered in planning the treatment regimen.