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Prevalence of Taurodont Molars in a Selected Iranian Adult Population Publisher



Jamshidi D1 ; Tofangchiha M2 ; Pozve NJ3 ; Mohammadpour M2 ; Nouri B4 ; Hosseinzadeh K5
Authors
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Authors Affiliations
  1. 1. Department of Endodontics, Dental School, Qazvin University of Medical Science, Qazvin, Iran
  2. 2. Department of Oral and Maxillofacial Radiology, Dental School, Qazvin University of Medical Sciences, Qazvin, Iran
  3. 3. Department of Oral and Maxillofacial Radiology, Dental Implants Research Center, Isfahan University of Medical Sciences, Islamic Azad University, Khorasgan Branch, Isfahan, Iran
  4. 4. Department of Epidemiology and Biostatistics, Medical School, Kurdistan University of Medical Science, Kurdistan, Iran
  5. 5. Faculty of Nursing and Midwifery, Qazvin University of Medical Sciences, Qazvin, Iran

Source: Iranian Endodontic Journal Published:2017


Abstract

Introduction: Taurodontism is an anomaly characterized by elongated crowns and consumedly apical location of the bifurcation area. This study aimed to determine the prevalence of taurodontism in molars based on digital panoramic radiographies in eight cities of Iran. Methods and Materials: This descriptive cross-sectional study was conducted on 2360 digital panoramic radiographs taken for different treatment purposes. Demographic information of patients was recorded and radiographs were evaluated for presence of taurodont molars. The prevalence rates were calculated and the data were analyzed using SPSS software version 18 via paired t-test, chi square test and ANOVA. Results: A total of 2360 panoramic radiographs (from 51.4% male and 48.6% female patients) were evaluated and the prevalence of taurodontism was reported 22.9% (22.6% in males and 23.3% in females) (P>0.05). Its prevalence was 51.67% in the right and 48.33% in the left quadrants (P>0.05), 34.1% in the mandible and 65.9% in the maxilla (P=0.000) and 79.52% in the second and 20.48% in the first molar (P=0.000). The prevalence of hypotaurodontism, mesotaurodontism and hypertaurodontism was 84.13%, 11.07% and 4.8%, respectively. Conclusion: The prevalence of taurodont molars was high in Iran and it was more common in the second molars and in the maxilla. Hypotaurodontism had the highest prevalence. © 2017, Iranian Association of Endodontics. All rights reserved.
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