多民族の都市人口における永久歯の噴出の年代と順序
Olivia Micheli1, Maria Athanasiou2, Victor Kristof3
1Private Practice, 1208 Geneva, Switzerland.
Dentistry journal
|August 27, 2025
まとめ
この研究では 子どもの永久歯の噴出を追跡し 性別を問わず一貫したシーケンスが見つかりました 歯は通常,上歯より先に発芽し,女の子は男の子よりも早く発芽します.
科学分野:
- 小児歯科
- 歯科人類学
- 人間 生物学
背景:
- 永久性歯の発芽のタイミングと配列を理解することは,子供の発達を評価し,潜在的な歯の異常を特定するために不可欠です.
- 以前の研究によると 噴火パターンは 民族性,性別,地理的な位置によって異なります
研究 の 目的:
- 永久歯の噴出の平均年齢と 臨床的出現の順番を決定する.
- 多民族の都市部の人口の縦断的なサンプルでこれらのパターンを分析する.
主な方法:
- 854人の子ども (4~13歳) が少なくとも4年間,毎年検査された.
- 歯科検診で永久歯の有無を記録する.
- ログノーマル分布を用いた平均/中位噴出年齢と連続性を計算し,試験者間の信頼性チェックを行います.
主要な成果:
- 性別によって一貫した永久歯の噴出シーケンスが観察され,大骨と下骨のアーチの違いは認められた.
- 歯は一般的に歯よりも早く噴出し,女の子は男の子よりも早く噴出しました.
- 反対側の同類歯の間では,噴出タイミングの有意な差異は見つかりませんでした.
結論:
- この多民族の都市部の人口における 永久歯の噴出の順番は 性別によって一貫しています
- 歯は通常上歯より早く発芽し,女の子は男の子より早く永久歯を発芽する傾向があります.
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