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A study of the distance between the free edges of medial pterygoid plates in the skulls of central india population.

Authors: Manmohan patel
Int J Biol Med Res. 2012; 3(2): 1520-1524  |  PDF File

Abstract

Objective: To stabilize the craniometric data for central Indian population and to find out any sexual dimorphism in distance between the free edges of medial Pterygoid plates in the nasopharyngeal region. Method: The present study was conducted on three hundred fourteen dry skulls of central India region. The dry skulls taken for study are first examined to determine the sex of the skull then various measurements of the distance between the free edges of medial Pterygoid plates were taken and compared to find out any sexual dimorphism. The maximum transverse distance between free edges of medial pterygoid plates has been measured at three sites- Site-I : At the uppermost part where the pterygoid plates meet the body of sphenoid bone, Site-II : At middle of pterygoid plates, Site-III : At the level of posterior free margin of hard palate. Results: At the site I, the average distance between free edges of medial pterygoid plates for male cases and female cases were 27.84(2.44) mm and 26.93(2.45) mm respectively. At the site II, the average distance between free edges of medial pterygoid plates for male cases and female cases were 29.32(2.86) mm and 28.25(2.57) mm respectively. At site III, the average distance between free edges of medial pterygoid plates for male cases and female cases were 0.44((2.50) mm and 29.54(2.77) mm respectively. For all the three sites, the average values for the male cases were significantly higher as compared with the female cases (P 0.05). Conclusion: This study shows that the distance between the free edges of medial Pterygoid plates in the skulls of central Indian population is slightly lower than that mentioned in other studies and the distance between the free edges of medial Pterygoid plates were found significantly higher in the male skulls than female skulls.