Cervantes MLE, Campechano ZLE, Sánchez BG

Language: Spanish
References: 28
Page: 1359-1363
PDF size: 100.81 Kb.

ABSTRACT

Introduction. Dental anatomical variations occur due to changes in normal patterns in the interaction of tissues during odontogenesis. Overall, mandibular molars are the most common endodontically treated posterior teeth. There are anatomical variations in roots and root canals of these molars, and deep knowledge of these variations and their frequency is required. Purpose. To determine the frequency of anatomical variations in first and second mandibular molars treated at the Clinic of the Postgraduate program in Endodontics of the Autonomous University of Tlaxcala. Method. This is a retrospective, transversal, descriptive and observational study of 4,103 molars from patients (radiovisiographies and pictures of accesses) from January 2006 to June 2011. Only 1435 mandibular molars (36, 37, 46 and 47) were selected (35.26 %). The anatomical variations identified in this study were radix paramolaris,radix entomolaris, "C" shaped root canals, two distal canals, mediomesial canals and frecuency of canals in mesial roots. Descriptive statistics was performed to detect the frequency of these anatomical variations. Results. Two distal canals (75.91 %) was the most common variation found in the first molars, followed by radix entomolaris (10.94 %). In the second lower molar one canal in mesial root was found frequently (49.58 %) followed by C shaped canals (23.14 %). Conclusion. The anatomical variations with higher incidence in first lower molars were two distal canals (75.91 %) and radix entomolaris (10.94 %) while in second molars they were one mesial canal (49.58 %) and C shaped canals (23.14 %).

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