Crooked teeth are more difficult to keep clean. This usually results in a greater incidence of tooth decay and gum diseases.

阻生齿很难保持清洁，这往往造成蛀牙和牙龈病的发病率增加。

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Crooked teeth are more difficult to keep clean. This usually results in a greater incidence of tooth decay and gum diseases.

阻生齿很难保持清洁，这往往造成蛀牙和牙龈病的发病率增加。

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