Clinical observation in 2 representative cases of vertical root fracture in nonendodontically treated teeth.

Root fractures in nonendodontically treated teeth have been reported to occur primarily in Chinese. Two representative cases of vertical root fractures in nonendodontically treated teeth are presented. In the first case, there were vertical fractures in both mesial and distal roots of the mandibular right first molar. In the second case, there were vertical fractures in the mesial roots of both the mandibular left and right first molars. Their radiographic features were obtained. Both had clinically intact crowns with no or minimal restorations and periodontal defects. Diagnosis could be obtained with the use of radiographic examination.