噛み合わせ矯正

咬合障害はさまざまな形で起こる。そのひとつが開咬です。このような異常がある患者は2%にも上ります。1歳未満の子供では12%、6歳では5.6%、成人では1.8～2%と、かなり少ない割合です。

オープンバイトとは

開咬とは、前歯列または側方歯列が不完全に閉じている状態のことです。垂直的な隙間が形成されるため、審美的な問題だけでなく、機能的な障害も生じます。多くの場合、このような病態は他の咬合と合併することがあり、遠位開咬や中位咬合を治療する必要があります。

看板

開咬の視覚的徴候：

顎が下方に移動し、顔の下部が拡大； 半開きの口； 上唇は狭く、閉じる瞬間は張っている； 口蓋は下方に移動し、後方に下がっている； 鼻唇溝は滑らかになっている。

口腔内症状...

中顎咬合は顎の閉鎖障害で、下顎がより前方に突出し、上顎の切歯と重なっている状態です。これは、患者に心理的な問題をもたらすだけでなく、適切な審美性がなく、外から欠陥が議論される可能性があるだけでなく、一般的に健康にも影響を与えます。成人や小児の中間の咬み合わせの治療は、長く困難なものです。筋機能体操、歯槽突起のマッサージ、矯正装置の使用、歯科専門医への定期的な受診など、あらゆる方面からの治療が必要です。

メシアルバイトとは

内側咬合とは、顎がきちんと閉じない咬合異常のことです。上の歯列に対して下の歯列が前に出ているため、視覚的にも目立ちます。

中顎咬合は、全体の10%までの集団で発生する（モンゴロイド人種でこの病態が観察されることが非常に多い）。また、遠位咬合と異なり、中顎咬合はあまり診断されません。

読み取り時間～7分 読み取り回数13499

交叉咬合は2%の患者に見られる。これは小児と成人です。多くのバリエーションがあり、このタイプの咬合が他の異常と組み合わさっていることもよくあります。不適切な咬合は治療可能ですが、標準からの逸脱に気づいたらすぐに治療を開始する必要があります。そうでなければ、治療だけでは不十分かもしれません。

クロスバイトとは

交叉咬合とは、上顎と下顎が水平面で閉じていること。片側または両側、前歯部または側⻭部の違反。咬合は交差した位置で起こり、歯列、個々の要素は重なり合っています。

交差咬合の徴候

目に見える症状の一つは、確かに顔の非対称性である：

唇の角の高さが異なるため、笑顔がずれている（曲がっている）； 顎のラインが中心軸からずれている。

クロスビットにおける視覚的非対称性...

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症状

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