Morphological Study of the Coronoid Process of Mandible in North Indian Population

,Anamika Gaharwar,Vineeta Tewari,Professor, Department Of Anatomy, Elmch, Lucknow

doi:10.21276/aanat.2019.5.1.26

Abstract

Introduction: Morphological variations in coronoid process are produced by the corresponding developmental variations. The present study was conducted to assess morphological variations of coronoid process of mandible. Subjects and Methods: The present study was conducted in the department of Anatomy. It comprised of 100 subjects of both genders. All subjects were subjected to panoramic radiograph. The different shapes of coronoid process were compared. Results: Out of 100 subjects males were 50 and females were 50. Triangular shape coronoid process was seen in 32 males and 36 females, hook shaped in 14 males and 8 females and rounded shaped in 4 males and 6 females. The difference was non- significant (P> 0.05). On left side triangular shape was seen in 33 and 35 on right side, hook form was seen in 10 in left side and 7 in right side and rounded was seen 7 in left side and 8 in right side. The difference was non-significant (P> 0.05). Conclusion: Authors found variation in shape of coronoid process. Most common type was triangular followed by hook variety.

Highlights

Morphological variations in coronoid process are produced by the corresponding developmental variations
A local bone graft from coronoid process of mandible can be used as it can be harvested minimal morbidity, shorter surgical and hospitalization time, no cutaneous scarring as bone is harvested intraorally
A Coronoid process graft can be used for alveolar defects repair, orbital floor repair, maxillary augmentation, repair of non-union fracture of mandible.[4]

Summary

Introduction

Elongation of the coronoid process may be found bilaterally or unilaterally, resulting in progressive, painless restriction in mandibular opening, due to impingement of the coronoid on the medial aspect of the zygomatic arches. This rare condition is more common in males, etiology of which is unknown.[1] The common treatment involves the sectioning of the coronoid process. The muscle and bone may dynamically affect the function of each other and lead to the changes in the morphology of the bone involved.[3] A local bone graft from coronoid process of mandible can be used as it can be harvested minimal morbidity, shorter surgical and hospitalization time, no cutaneous scarring as bone is harvested intraorally. The present study was conducted to assess morphological variations in coronoid process of mandible in north Indian population

Subjects and Methods

Results

Discussion