今からご紹介する4種類の歯並びを総合名称で
不正咬合と呼びます
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/flair.gif)
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/one.gif)
![上顎前突](https://kita-orthodontic.com/wp-content/uploads/2014/08/上顎前突.png)
上あごの歯全体が前に出ている歯並びの状態です
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/sad.gif)
原因は遺伝や顎の成長のアンバランス、指しゃぶり
舌癖(ぜつへき)などが考えられます
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/danger.gif)
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/two.gif)
![叢生](https://kita-orthodontic.com/wp-content/uploads/2014/08/叢生.png)
歯が正しい位置や方向に生えず、歯列から外れて
でこぼこに生えたり、歯の生え方が不揃いの
歯並びの状態です
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/bearing.gif)
原因は食生活の影響や乳歯時の虫歯などが考えられます
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/danger.gif)
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/three.gif)
![反対咬合](https://kita-orthodontic.com/wp-content/uploads/2014/08/反対咬合.png)
下あごの歯の方が前にでている歯並びの状態です
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/wobbly.gif)
原因は骨格性の遺伝や噛み方の癖などが考えられます
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/danger.gif)
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/four.gif)
![開咬](https://kita-orthodontic.com/wp-content/uploads/2014/08/開咬.png)
上下を噛み合わせた時に、上の歯と下の歯が
噛みあわなく、隙間が空いている状態です
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/despair.gif)
原因は上下の顎の成長のアンバランスや
指しゃぶり、口呼吸などが考えられます
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/danger.gif)
自分の歯並びと上記のいずれかが当てはまる
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/sign03.gif)
気になる…直したい
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/sign01.gif)
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/sign01.gif)
一度、矯正歯科へお問い合わせ下さい
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/happy01.gif)
![](https://kita-orthodontic.com/wp-content/plugins/ckeditor-for-wordpress/ckeditor/plugins/smiley/images/heart04.gif)