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Gender difference and root canal morphology in mandibular premolars: A cone-beam computed tomography study in an
Maryam Kazemipoor1, Afrooz Hajighasemi1, Roqayeh Hakimian1
1Department of Endodontic, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Background:
Mandibular premolars are of the most difficult teeth to treat endodontically.
Aims:
To compare the root canal morphology of mandibular premolars between two genders in an Iranian population.
Settings And Design:
Totally, 230 cone-beam computed tomography images of the mandibles belonged to 115 males and 115 females were evaluated in the three spatial planes.
Materials And Methods:
The total number of roots and canals in the mandibular premolars was counted, and the difference between males and females were analyzed.
Statistical Analysis:
Data were analyzed using Chi-square test. The significance level was set as P < 0.05.
Results:
The majority of mandibular first and second premolars had one root (85.7% and 94.8%, respectively) and one canal (63.9% and 78.3%, respectively). The number of roots in the mandibular first premolars had statistically significant difference between two genders (P = 0.001). There was no significant difference between two genders in the number of roots (P = 0.208) and canals (P = 0.498) in the mandibular second premolars.
Conclusion:
According to the results of this study, the root canal morphology in the mandibular first premolars had statistically significant difference between two genders.
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