…This is an occlusion disorder in which the gap between the upper and lower front teeth is 7 to 8 mm or more. In dentistry, this is called upper protrusion, and is divided into five types based on its cause. (1) When the upper front teeth are positioned further forward than normal or tilted forward. The facial feature is a pronounced protrusion of the upper jaw. … *Some of the terminology that mentions "upper protrusion" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…上下の前歯の前後的なすきまが7~8mm以上あるようなかみ合せの不正状態をいう。歯科学用語では上顎前突upper protrusionと称し,その成因から5類に分けられる。(1)上顎の前歯が正常より前方に位置していたり,前方に傾斜している場合 顔貌上の特徴は,上顎の前突感が著しい。… ※「upper protrusion」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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