Concrescence

[2] Factors that may cause concrescence include injuries (trauma), crowding of teeth, inflammation, or infection.

[7] Post-inflammatory concrescence must be kept in mind whenever extraction is planned for non-vital teeth with apices that overlie the roots of an adjacent tooth.

Surgical separation often is required to complete the procedure without loss of a significant portion of the surrounding bone.

If the union is large or firm, the planned extraction of one of the teeth may inadvertently result in the removal of its mate.

A clinician’s awareness of the characteristics of this odontogenic anomaly may help avert adverse outcomes in the treatment of concrescent teeth.