| Term | mesial fossa |
| Pronunciation | (MEE-zee-ul, MEE-see-ul) FAH-suh |
| See also | distal fossa, central fossa |
| Definition | A shallow depression found in the mesial third of the occlusal surface of a posterior tooth, bordered by the cusp ridges, the mesial marginal ridge and the occlusal perimeter. |
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A sample term:
angle of gingival convergence