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Updated: May 20, 2026
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Four-rooted mandibular first molar with an unusual developmental root fusion line: a case report
Jojo Kottoor1, Denzil Valerian Albuquerque, Natanasabapathy Velmurugan
1Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College, Chennai 600096, India.
Abstract:
The paper describes the anatomical variation of four roots in a mandibular permanent first molar diagnosed using multiple angulated preoperative radiographs and its successful nonsurgical endodontic management. Careful observation and exploration of the pulpal floor using a dental operating microscope revealed a peculiar developmental root fusion line on the pulp chamber floor. Based on the above observation, a correlation between this unusual line and the existence of additional roots has been proposed and discussed.
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