Division of Periodontology, Department of Conservative Dentistry and Oral Rehabilitation, School of Dentistry, Iwate Medical University
Abstract
水酸化カルシウム製剤は,根未完成歯のアペキシフィケーションに用いる薬剤である.我々は,8歳の男児が転倒時に顔面を殴打し,右側上顎中切歯が完全脱臼した症例を経験した.脱臼歯は早急に整復固定したものの失活歯となり,同時に歯肉腫脹も認めたため,根管治療(アペキシフィケーション)が必要と診断された.根管内の失活歯髄を除去した後,市販の水酸化カルシウム製剤を適応した後,症状は速やかに改善した.今後約2～3年の経過観察の後,最終根管充填処置を行う必要があると考えられる.Calcium hydroxide is a suitable reagent for apexification procedures in immature permanent teeth. We report on a case of root apexification in a patient (8-yr, male) with a traumatic extrusion of the maxillary right central incisor. After temporary fixation of the traumatically extruded maxillary right central incisor, tooth necrosis and gingival swelling was observed , thus it was diagnosed to require an apexification procedure. The apexification procedure was successfully performed using calcium hydroxide following endodontic treatment. None of the calcium hydroxide -treated tooth showed any clinical or radiographic pathology. Additional follow-up time (2-3 years) is required to determine the final outcome of root canal therapy applied in cases of traumatized maxillary permanent incisor teeth with incomplete root formation
