Concrescence refers to

Concrescence refers to

• A. Fusion of crowns by enamel
• B. Dens invaginatus
• C. Union of root structure by cementum
• D. Root fracture

Answer: (C)

Concrescence is the union of two or more tooth roots by cementum, usually after eruption when adjacent roots come into contact and cementum from neighbouring roots fuses. The crowns remain separate, and the fusion is limited to the root surfaces, involving cementum rather than enamel. This distinguishes it from fusion of crowns by enamel, where the crowns themselves are joined; from dens invaginatus, which is an inward folding of enamel/dentin within a single tooth; and from a root fracture, which is a break in the root rather than a bonding of root surfaces. Clinically, concrescence may show as a continuous radiopaque line between adjacent roots and can complicate extractions if the roots are fused.

Concrescence is the union of two or more tooth roots by cementum, usually after eruption when adjacent roots come into contact and cementum from neighbouring roots fuses. The crowns remain separate, and the fusion is limited to the root surfaces, involving cementum rather than enamel. This distinguishes it from fusion of crowns by enamel, where the crowns themselves are joined; from dens invaginatus, which is an inward folding of enamel/dentin within a single tooth; and from a root fracture, which is a break in the root rather than a bonding of root surfaces. Clinically, concrescence may show as a continuous radiopaque line between adjacent roots and can complicate extractions if the roots are fused.