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In dentistry, an embrasure is the space that extends from the proximal contact area. If it extends buccally or labially, it is called a buccal or labial embrasure. If it extends lingually, it is called a lingual embrasure. If it extends occlussaly or incisally, it is called an occlusal or incisal embrasure. There is no cervical embrasure as this area is filled with interdental papilla.

[edit] size of embrasures

For anterior teeth, the labial embrasure and the lingual embrasure are of the same size. In posterior teeth, the buccal embrasure is narrower than the lingual one. In general, incisal embrasures are wider than the occlusal ones .

[edit] Function

Embrasures provide spillways for food to escape during mastication, reducing the pressure on teeth and allowing for proper massage. Embrasures prevent impaction of food between teeth

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