外傷既往の上顎中切歯抜去後に矯正および補綴治療にて審美改善を行った一症例  [in Japanese] A Combination of Orthodontic and Prosthodontic Treatment in a Young Patient and Previously Traumatized Upper Central Insisors : A Case Report  [in Japanese]

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Abstract

若年者の上顎前歯の抜歯を行うことは, 特別な理由がない限り臨床上極めて少ないが, われわれは1⊥1の抜歯を余儀なくされた患者に対して, 矯正科と補綴科の連携のもと, 機能・審美性の改善を目的に約10年間の治療および経過観察を行った一症例を報告する.患者は上顎前突感を主訴として来院した.上顎前歯部に打撲の既往があり, X線所見から矯正治療には不利と診断し1⊥1の抜歯を行った.約3年間かけて, 抜去した1⊥1の位置に2⊥2の近心移動を行い, 将来の補綴処置を想定して, 正中部に本来の1⊥1の歯冠幅を残して約1年6か月間の保定を行った.引き続き補綴科にてポーセレンラミネートベニア法により2⊥2の歯冠形態を修復し患者の審美的改善をはかることができた.

An extraction of the upper central incisor of young patients is extremely rare because missing central incisors creates an esthetic and functional problem with specific orthodontic and prosthetic considerations. This article describes a case requiring a combination of orthodontic and prosthodontic treatment in a young patient with Class II Division 1 malocclusion and previously traumatized upper central insisors. In this case, the upper central incisors with root resorption and the lower second premolars were extracted, and then fixed appliances were placed in upper and lower arches to align the teeth in order to close the spaces and to reduce the overjet. Orthodontic mesialization of both lateral incisors toward the midline was followed by prosthodontic modification with the porcelain laminate veneer (PLV) method. The PLVs were placed on both lateral incisors to simulate the appearance of both central incisors to compensate for the limitations of orthodontic treatment and to harmonize the tooth size. Four years of follow-up revealed that treatment had successfully restored esthetics as well as function.

Journal

  • The Journal of Showa University Dental Society

    The Journal of Showa University Dental Society 23(1), 50-56, 2003-03-31

    Showa University Dental Society

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