Concrescence is described as

Concrescence is described as

• A. It is the fusion of crowns by enamel
• B. Union of root structure by cementum
• C. It is resorption of dentin
• D. It is union of root structures by dentin

Answer: (B)

Concrescence is the union of root structures by cementum. This happens when cementum from adjacent tooth roots grows and fuses, connecting the roots at their tips or along the root surfaces without involving enamel or dentin. The crowns remain separate, and the fusion is specific to cementum on the roots rather than the other dental tissues. This contrasts with crown fusion (which would involve enamel) or dentin-based fusion (which would involve dentin). Resorption is the breakdown of tooth structure, not a fusion, so it’s not described as concrescence. Clinically, concrescence is often found incidentally on radiographs and can complicate extraction or endodontic procedures if the roots are fused.

Concrescence is the union of root structures by cementum. This happens when cementum from adjacent tooth roots grows and fuses, connecting the roots at their tips or along the root surfaces without involving enamel or dentin. The crowns remain separate, and the fusion is specific to cementum on the roots rather than the other dental tissues. This contrasts with crown fusion (which would involve enamel) or dentin-based fusion (which would involve dentin). Resorption is the breakdown of tooth structure, not a fusion, so it’s not described as concrescence. Clinically, concrescence is often found incidentally on radiographs and can complicate extraction or endodontic procedures if the roots are fused.