INTRA-ALVEOLAR TRANSPLANTATION OF COMPLETELY CROWN-ROOT FRACTURED TOOTH WITH DEMINERALIZED FREEZED DRIED BONE GRAFT

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Journal of the Korean Academy of Pediatric Dentistry 2000;27(2):344-350.
Published online May 31, 2000.

INTRA-ALVEOLAR TRANSPLANTATION OF COMPLETELY CROWN-ROOT FRACTURED TOOTH WITH DEMINERALIZED FREEZED DRIED BONE GRAFT

치은연 하방으로 파절된 치아의 탈회냉동건조골을 이용한 Intra-alveolar transplantation

임형수, 김동필, 이창섭, 이상호

조선대학교 치과대학 소아치과학교실

Abstract

Incidence of crown-root fracture due to traumatic injury, have been reported 3% in the permanent dentiton, 2% in the deciduous dentition. There are two treatment methods for crown-root fractured teeth with pulp exposure, when the fracture line was located under the alveolar crest. One way is the extrusion by orthodontic force the other way is intra-alveolar transplantation which occlusally repositioning of apical fragment in the alveolar socket. Since intra-alveolar transplantation has introduced in 1970s, it was practiced as alternative to orthodontic extrusion. As the result, this method may thoughted that had a good prognosis. As a result of trauma, completely crown-root fracture was occured in the maxillary right central incisor in this case. We couldn't reposition the deepest fracture line above the alveolar crest by the conventional surgical extrusion, because apical fragment was too short. Thus, after extraction of apical fragment, we repositioned it to the socket following demineralized freezed dried bone graft, which possible to support the apical fragment. At the 15-month recall examination, the root still showed normal mobility and there was not observed any in flammatory or replacement root resorption in the periapical radiograph.

Key Words: Intra-alveolar transplantation, Demineralized freezed dried bone graft, Crown-root fracture, root resorption