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Mandibular permanent second molar with four roots and root canals: a case report
Roshan Peiris1, Nilmini Pitakotuwage, Masami Takahashi
1Department of Anatomy and Physical Anthropology, Nihon University Graduate School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, Japan. rdpeiris@yahoo.com
Odontology
|February 3, 2009
Summary
This study reports the first known case of a four-rooted mandibular second molar, detailing its unique root and canal anatomy. Understanding these rare dental variations is crucial for endodontic treatment.
Area of Science:
- Dentistry
- Human Anatomy
Background:
- Mandibular first molars with four roots are rare but documented.
- Mandibular second molars typically present with two or three roots.
Observation:
- A unique case of a mandibular second molar exhibiting four distinct roots and root canals was identified.
- The molar presented with two mesial roots and two distal roots.
Findings:
- Mesial roots separated in the cervical one-third near the gum line.
- Distal roots divided lower, in the middle third of the root structure.
Implications:
- This finding expands the known anatomical variations of mandibular second molars.
- Awareness of such anomalies is vital for successful endodontic procedures and diagnosis.
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