Embrasure
Pronunciation: em-BRAY-zhur
The V-shaped space between the proximal surfaces of adjacent teeth as they diverge from the contact area, classified by direction (buccal, lingual, occlusal, or gingival).
Full Definition
An embrasure is the tapered, V-shaped space formed where the proximal surfaces of two adjacent teeth diverge away from their contact point. Embrasures are categorised as buccal, lingual, occlusal (incisal), or gingival depending on their orientation. The gingival embrasure is normally filled by the interdental papilla; its loss is a clinical and aesthetic concern. Editors must not confuse this architectural tooth term with 'emergence profile', which relates to implant or crown contour. Correct use of the term is important in restorative and prosthodontic reports.
Usage
Usage note: Always lowercase in running text. When classifying, the direction should precede the noun: 'buccal embrasure', not 'embrasure buccal'.
In Context
- "The overcontoured crown eliminated the buccal embrasure, trapping plaque and leading to localised gingivitis." — Restorative dentistry clinical report
- "Correct embrasure form was re-established by recontouring the mesial surface of the restoration." — Operative dentistry case notes