adjective
relating to or affecting the surfaces of the teeth that come into contact when the mouth is closed
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The occlusal surface of the tooth is responsible for chewing and grinding food.
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Make sure you brush the occlusal surface of your teeth to prevent cavities.
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I can feel something stuck in my occlusal area, it's annoying!
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The occlusal relationship between the upper and lower teeth must be properly aligned for proper bite function.