Anatomical Variabilities In The Number Of Roots In Permanent Mandibular First Molar In Kashmiri (North Indian) Population.

Abstract

Abstract:
Objective: Anatomical racial variations are an acknowledged characteristic in permanent
molars. Generally, mandibular first molars have 2 roots; however, the presence of a third
root, radix entomolaris /paramolaris, or even single root, are anatomic variants among many
population groups. This study evaluated the prevalence of single rooted, two rooted and
three rooted permanent mandibular first molars in a Kashmiri population.
Study design: Three hundred twenty patients of Kashmiri origin possessing bilateral
mandibular first molars were selected. The radiographs of these patients were evaluated
under optimal conditions. A total of six hundred forty mandibular first molars were
screened and the incidence of one, two or 3-rooted mandibular first molars, the left and
right-side occurrence and any gender propensity was recorded.
Results: After interpretation of radiographs of 320 patients (170 males and 150 females),
43 patients (20 males and 23 females) had radix entomolaris. The prevalence of this three
rooted configuration in males and females was 11.7% (20/170) and 15.34% (23/150)
respectively. while as single rooted configuration was found in only one female patient and
none male patient, making an overall prevalence of single rooted mandibular first molar of
0.3%.
Conclusion: The prevalence of this three rooted configuration in males and females was
11.7% (20/170) and 15.34% (23/150) respectively. while as single rooted configuration was
found in only one female patient and none male patient, making an overall prevalence of
single rooted mandibular first molar of 0.3%.
Keywords: mandibular first molar, radiograph, anatomy.