Embrasure
Pronunciation: EM-bra-zhur
The V-shaped space between the proximal surfaces of adjacent teeth, above the contact area, categorised by shape and size to guide interproximal hygiene recommendations.
Full Definition
Embrasures are the triangular spaces that exist between adjacent teeth at each of the four aspects: occlusal/incisal, buccal, lingual, and gingival. The gingival embrasure (also called the col area) is of particular importance in dental hygiene because it is the space that should ideally be occupied by the interdental papilla. Embrasure classification (Type I: papilla fills the space; Type II: partial fill; Type III: open embrasure) guides the selection of interproximal cleaning aids. Editors should note that 'embrasure' is not hyphenated and should not be confused with 'contact area' or 'col,' which are related but distinct anatomical terms.
Usage
Usage note: Do not confuse with 'diastema,' which refers specifically to a gap or space between teeth with no contact. 'Embrasure' describes a space shaped by adjacent tooth contours.
In Context
- "Open embrasures in the anterior region were noted following orthodontic treatment, and interdental brush use was recommended." — Dental hygiene treatment note
- "The Type III embrasure between teeth #22 and #23 required a larger interdental brush for adequate plaque removal." — Oral hygiene instruction record