Edge-to-edge relationship refers to which description?

Edge-to-edge relationship refers to which description?

• A. It describes cusp-to-fossa relationships
• B. It describes incisal edges meeting
• C. It relates to canine guidance
• D. It describes posterior tooth contact only

Answer: (C)

Edge-to-edge describes a type of occlusion where the incisal edges of the upper and lower anterior teeth meet each other in centric occlusion. This means the front teeth contact directly rather than the bite being driven by posterior teeth. It differs from cusp-to-fossa relationships, which involve contact between posterior teeth, and from canine guidance, which is about the canines guiding jaw movement to disclude the posterior teeth during lateral motions. It also is not about posterior contact only, since the defining feature is anterior incisal edge contact. Clinically, edge-to-edge can lead to incisal wear and may indicate a malocclusion or instability that needs assessment.

Edge-to-edge describes a type of occlusion where the incisal edges of the upper and lower anterior teeth meet each other in centric occlusion. This means the front teeth contact directly rather than the bite being driven by posterior teeth. It differs from cusp-to-fossa relationships, which involve contact between posterior teeth, and from canine guidance, which is about the canines guiding jaw movement to disclude the posterior teeth during lateral motions. It also is not about posterior contact only, since the defining feature is anterior incisal edge contact. Clinically, edge-to-edge can lead to incisal wear and may indicate a malocclusion or instability that needs assessment.