치외치로 인한 봉와직염 환자에서 MTA를 이용한 치험례
MTA APPLICATION TO PATIENTS WITH CELLULITIS CAUSED BY DENS EVAGINATUS
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참고문헌
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초록
치외치는 치아의 교합면에 부가적인 교두나 돌기(tubercle)를 가진 치아의 형태 이상이다. 치외치는 1-4%의 유병율을 보이 며 하악 소구치에서 발생 빈도가 높다. 치외치의 돌기는 쉽게 마모되거나 파절되어 치수 노출, 치수 생활력 상실, 안면부 감염, 골수염 등을 일으킬 수 있다. 또한, 돌기가 파절될 때 치외치의 치근단이 미성숙 상태인 경우가 많아 근관 치료가 쉽지 않다. 미성숙 영구치의 근관치료 시 수산화칼슘이 널리 사용되어 왔으나 내원 빈도 단축을 위해 여러 대체 재료들이 제안되어 왔 다. 그 중 하나인 Mineral Trioxide Aggregate는 우수한 생체적합성과 변연 폐쇄성을 특징으로 하며, 미성숙 영구치의 근관 치료 시 치료 기간을 단축시킬 수 있다. 본 증례보고에서는 치외치로 인한 치수 괴사로 봉와직염이 발생한 환자를 Mineral Trioxide Aggregate로 치료하였다. 미 성숙 치근단을 가진 하악 소구치에 Mineral Trioxide Aggregate를 이용한 치근단형성술(apexification)을 시행하여 임상적 및 방사선학적으로 양호한 결과를 얻었으며, 한 증례에서는 치근단유도술(apexogenesis)의 결과와 같이 계속적인 치근 성장 이 관찰되었다.
Abstract
Dens evaginatus is a dental anomaly involving an extra cusp or tubercle that protrudes from the occlusal surface of the affected tooth. The prevalence of dens evaginatus is 1 to 4 percent, and dens evaginatus is observed most commonly in premolars. It can be worn or fractured easily, resulting in pulpal exposure, pulpal infection, loss of vitality, facial infection and osteomyelitis. Since the tooth frequently has the immature apex when the tubercle is fractured, there is difficulty in treatment. Although calcium hydroxide is widely used for pulp treatment of an immature permanent tooth, several alternatives have been suggested to reduce patient’s appointments. Mineral trioxide aggregate is considered biocompatible and has excellent marginal sealing ability. In addition, it can minimize patient’s visits. In this case report, apexification with MTA was attempted on the immature premolars in patients with cellulitis patient, caused by pulp necrosis due to dens evaginatus. Favorable clinical and radiologic results were achieved. In one case, continued root formation was observed.
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