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Updated: Feb 7, 2026

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笑Бestheticと回転した上顎側切歯
Alexa Spokane1, Daniel Rinchuse1, Thomas Zullo1
1Department of Advanced Education in Orthodontics and Dentofacial Orthopedics, Seton Hill University, Greensburg, Pennsylvania, USA, setonhill.edu.
International journal of dentistry
|February 6, 2026
まとめ
一般の人々は、回転した歯よりもまっすぐな笑顔をより魅力的だと感じています。軽度の回転(20〜30°)は区別できませんが、大幅な回転(40°)は観察者の性別に関係なく、笑顔の審美性を著しく低下させます。
科学分野:
- 矯正歯科
- 歯科審美
- 心理学
背景:
- 歯の回転は一般的な矯正歯科の問題です。
- 歯の回転に対する一般の人々の認識に関する研究は限られています。
- 一般の人々の審美的な好みを理解することは、矯正歯科の治療計画にとって重要です。
研究 の 目的:
- 上顎側切歯の様々な程度の回転に対する一般の人々の審美的な認識を評価すること。
- 歯の回転が一般の人々にとって審美的に好ましくなくなる閾値を決定すること。
主な方法:
- 歯科スキャンのデジタル操作により、4つの回転条件(0°、20°、30°、40°)を作成しました。
- 笑顔の画像を、正面および3/4ビューで、一般の人々(18〜30歳)のパネルに提示しました。
- 視覚アナログスケール(VAS)を使用して笑顔の魅力を評価し、統計分析(ANOVA)を実施しました。
主要な成果:
- 回転のない笑顔は、回転したどの笑顔よりも有意に魅力的であると評価されました。
- 40°の回転は、他の条件と比較して審美性が有意に低いと認識されました。
- 一般の人々は、審美的に20°と30°の回転を統計的に有意に区別できませんでした。
- パネリストの性別は、審美的な評価に有意な影響を与えませんでした。
結論:
- 一般の人々は、回転した切歯のある笑顔よりも、自然に整列した笑顔を好みます。
- 著しい切歯の回転(40°)は、笑顔の審美性に悪影響を与えます。
- 軽度の切歯の回転(20〜30°)は、一般の人々の審美的な認識を統計的に有意に変化させません。
- 性別は、切歯の回転の審美的な判断において役割を果たしません。
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