Abstract
Background: The length of root trunk in addition to the amount of horizontal and vertical bone loss supplements furcation classification in the determination of diagnosis, prognosis, and treatment planning.
Objectives: The primary objective was to determine the root trunk length of the maxillary and mandibular first molar. The secondary objective was to assess the association between socio demographic factors and root trunk length of maxillary and mandibular first molar..
Methods: Total of 112 patients who had indication of extraction of either upper or lower first molar teeth were recruited. After extraction of teeth, the vertical dimensions of the root trunk and root length were measured with Digital Vernier Caliber.
Results: Out of 112 teeth, 43 were obtained from male and remaining 69 from female. Similarly, out of 112, 80 teeth were mandibular first molar and remaining 32 were maxillary first molar. The mandibular buccal root trunk (BRT) and lingual root trunk (LRT) length was
4.26 ± 0.99 and 4.86 ± 0.95 mm, respectively. Similarly, the maxillary mesial root trunk (MRT), buccal root trunk (BRT) and distal root trunk (DRT) length was 4.56 ±.91, 4.91 ± .67 and 5.62 ± 0.87 mm, respectively.
Conclusion: For maxillary first molar, the longest root trunk is DRT followed by BRT and then MRT while for mandibular first molar; LRT is longer than BRT length.
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