A Case of External Dental Fistula Caused by Dens in Dente

Abstract

An external dental fistula on the mentum caused by dens in dente is reported. The patient was an 8year old boy who had swelling on the mentum. Oral examination showed no caries on the right mandibular central incisor. A radiolucent image was found at the apical region of this tooth with a radiographic examination. A dens in dente was also recognized in this tooth rediographicaly. Root canal treatment was conducted with a diagnosis of external dental fistula caused by dens in dente. After that, two years of observation continued without any symptoms being revealed.