occlusal surface; masticating surface
Dental term for the chewing surface of a tooth where upper and lower teeth meet.
Cavities tend to form on the occlusal surface.
The dentist checked the wear on the occlusal surface.
Compound of 咬合 (こうごう, 'occlusion' or 'bite') and 面 (めん, 'surface'). The exact historical derivation is uncertain; the spelling is conventionally associated with dental anatomy.