PROGNOSIS OF THE SURGICALLY REPOSITIONED MAXILLARY CENTRAL INCISOR IN INTRUSIVE INJURY

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Journal of the Korean Academy of Pediatric Dentistry 2006;33(3):522-528.
Published online August 31, 2006.

PROGNOSIS OF THE SURGICALLY REPOSITIONED MAXILLARY CENTRAL INCISOR IN INTRUSIVE INJURY

함입된 상악 중절치의 외과적 재위치 후 예후

민성진, 류정아, 김성오, 이제호, 최병재, 손흥규, 최형준

연세대학교 치과대학 소아치과학교실, 구강과학연구소

Correspondence: ,

Abstract

When tooth is displaced within the alveolar bone, it could apply pressure and rupture the apical vessels. Pulpal reaction in such case is affected by the stage of root formation, amount of intrusion and pulpal infection. Determining the need of pulp treatment depends on the pulp vitality. Therefore, periodic vitality tests, coronal color changes and radiographic root resorption signs should be observed through periodic post-trauma follow-up. Pulp necrosis, pulp canal obliteration, external root resorption, root ankylosis and marginal bone loss could result from periodontal injuries. Negative sign changes from positive signs of vitality tests suggest pulp necrosis. In this case, pulp treatment should be held before root resorption occurs. By comparing the following two cases, complications of intrusion and factors producing them could be confirmed, thus we propose to report these two cases.

Key Words: Intrusion, Pulp vitality, Pulp necrosis, Root resorption