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Related Concept Videos

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The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
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Related Experiment Video

Updated: Apr 5, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
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Mandibular Premolars with Multiple Roots:A Case Report.

O O Dosunmu1, A O Sulaiman, F S Olasemi

  • 1Department of Restorative Dentistry, College of Medicine, University of Ibadan.

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|August 11, 2015
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Summary

Uncommon multiple root anatomy in mandibular premolars was observed in a Nigerian male. This finding highlights the importance of recognizing root variations for successful endodontic treatment.

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Area of Science:

  • Dentistry
  • Human Anatomy

Background:

  • Mandibular premolars typically have single root canals, but anatomical variations exist.
  • Multiple roots in mandibular premolars are rare, with documented prevalence rates varying by population.
  • Root and canal morphology can differ based on genetics, gender, and racial groups.

Purpose of the Study:

  • To document a rare case of anatomical variation in mandibular premolar root configurations.
  • To emphasize the significance of recognizing such variations for effective endodontic treatment in the Nigerian population.

Main Methods:

  • Radiological investigation of a 20-year-old Nigerian male's mandibular jaw.
  • Analysis of the root anatomy of the right and left mandibular first and second premolars.

Main Results:

  • The mandibular right first and second premolars each exhibited two roots.
  • The mandibular left second premolar also presented with two roots.
  • This case represents a significant deviation from typical mandibular premolar anatomy.

Conclusions:

  • Anatomical variations in mandibular premolar root and canal systems are crucial to consider during endodontic procedures.
  • Awareness of these variations is essential for successful endodontic treatment outcomes, particularly in diverse populations like Nigerians.