Endodontic treatment of hypertaurodontism with multiple bilateral taurodontism
A 31-year-old male patient applied to the endodontic clinic with decayed left maxillary first molar. Medical and family histories were non-contributory. The tooth was asymptomatic and was not sensitive to percussion or palpation. However, several times, he had experienced pain in his tooth after drinking hot liquids. Intraoral examination revealed a deep carious lesion in the maxillary left first molar (tooth 26). An intraoral periapical radiograph showed the presence of a coronal radiolucency close to the pulp chamber, confirming the diagnosis of asymptomatic irreversible pulpitis and a large pulp chamber, as well as extremely short roots, signifying hypertaurodontism. A panoramic radiograph was recommended to look for multiple taurodonts and revealed bilateral hypertaurodontism in the maxillary and mandibular molars. Root canal therapy was advised for tooth 26. The tooth was anesthetized using 2% articaine with 1:200 000 epinephrine, and the pulp chamber of tooth 26 was accessed under rubber-dam isolation. Five canals, including two mesial, two distal, and a palatal were located. Working lengths were determined with a #15 K file (Dentsply Maillefer; Ballaigues, Switzerland) and confirmed by an electronic apex locator (Root ZX; Morita, Japan). Root canals were prepared using Revo-S (Micro-Mega, Besançon, France) rotary files. An SC1 (25.06) file was used at 2/3 of the working length. SC2 (25.04) and SU (25.06) files were used at the working length. Passive ultrasonic irrigation and 2.5% sodium hypochlorite were also used between each file, and the final flush was performed with ethylenediaminetetraacetic acid (EDTA) 15%, following 2.5% sodium hypochlorite. After drying the canals, the root canals were filled with traditional lateral compaction and the elongated pulp chamber was obturated using the vertical compaction method with AH Plus (Dentsply International) and gutta-percha cones. The final radiograph confirmed a well-condensed filling of the five root canals, and the tooth was then restored with a composite resin [].