Taurodontism is characterized by larger pulp champer, decreased root length and less marked cervical constriction. It has also been associated with several syndromes and anomalies, however, it most frequently appears as an isolated anomaly. A failure of Hertwig′s epithelial root sheath to invaginate at the appropriate horizontal level shed important light on the pathogenesis of taurodontism. To date, the etiopathogenesis of taurodontism is unclear.
When these teeth are infected by endodontitis or apical periodontitis, root canal therapy is still the best choice. One case of taurodontism was reported and relevant literatures were reviewed. The possible etiology and treatment of taurodontism was discussed.