Dental anatomical anomalies in Asians and Pacific Islanders.

Dental anatomical anomalies having a significant impact on endodontic diagnosis and treatment are the talon cusp, tuberculated premolars, three-rooted mandibular molars, and C-shaped molars. Asian and Pacific Islander ethnic groups have the highest percentage of these dental anatomical anomalies compared to the general population. As the population of Asians and Pacific Islanders continues to grow in California and other western states, dentists should be aware of the diagnostic and treatment complexities associated with specific patient groups.