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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Angularis nigra ： ウィキペディア英語版 Angularis nigra ''Angularis nigra'', Latin for black angle (formerly known as the black triangle), is the space or gap seen at the cervical embrasure, below the contact point of some teeth. The interdental papilla does not fully enclose the space, leading to an aperture between adjacent teeth. This gap has many causes including gingival recession, and gingival withdrawal post orthodontic work. Possible treatments to correct ''angularis nigra'' include addition of composite resin in the space, veneer placement, or gum graft. ''Angularis nigra'' is generally only treated based on the aesthetic preference of the patient (although serious gum recession may warrant periodontal treatment). Previously, lack of proper termology to report this condition was an issue, often colloquially termed the "black triangle"; ''angularis nigra'' was coined at the University of Toronto Faculty of Dentistry.〔http://www.utoronto.ca/dentistry/〕 == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Angularis nigra」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.