逆生埋伏上顎中切歯の開窓牽引処置についての2例

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  • Report of Two Cases of Occlusal Guidance of the Inverted and Impacted Upper Central Incisor

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Generally, inverted and impacted teeth have not been considered for treatment but were extracted. Especially, inverted and impacted incisors having a bending root were very difficult to guide. In the present study, we report on 2 cases of occlusal guidance of inverted and impacted upper central incisors.<BR>Case 1: A 9-year old male was referred by his family dentist complaining of delayed eruption of the upper left central incisor. The X-ray photo revealed that the upper left central incisor was impacted inversely. The incisor was successfully guided to the correct position with a fenestration operation and occlusal guidance for 3 years and 3 months using a lingual arch and multi-bracket system.<BR>Case 2: An 11-year old female was referred with a complaint of delayed eruption of the upper left central incisor. It was revealed that the upper left central incisor was inverted and impacted radiographically. Furthermore, the root of the central incisor was obviously bent. It took 1 year and 11months to complete the occlusal guidance with same procedure as in case 1.<BR>In both cases, prognoses remain satisfactory without clinical symptoms such as pain or periapical periodontitis.

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