Welcome to International Journal of Anatomy and Research

Type of Article: Original Research

Year: 2016 | Volume 4 | Issue 3 | Page No. 2725-2729

Date of Publication: 31-08-2016

DOI: http://dx.doi.org/10.16965/ijar.2016.317

MORPHOMETRIC ANALYSIS OF INFRA ORBITAL FORAMEN IN HUMAN DRY SKULLS

K. Rajeswari * ¹, M.Rohinidevi ², V.Vimala ³, D.Megala ⁴.

^*1,2 Associate Professor, Department of Anatomy, Coimbatore Medical College, Coimbatore,Tamil Nadu, India.

^3,4Assistant Professor, Department of Anatomy, Coimbatore Medical College, Coimbatore, Tamil Nadu, India.

Address: Dr. K. Rajeswari, Associate Professor, Department of Anatomy, Coimbatore Medical College, Coimbatore, TamilNadu, India. Mobile no.: +919842229798. E-Mail: drkrajeswari06@gmail.com

ABSTRACT

Background: Knowledge about the morphology of infraorbital foramen (IOF) is important for surgeons, dentists and anesthetists while performing maxillo-facial surgeries.
Materials and Methods: The study was conducted in 52 human dry skulls in Department of Anatomy, Coimbatore Medical College. The location, shape, sagittal and transverse diameter of infra orbital foramen were measured using  Vernier calipers. The relation of infraorbital foramen to 1st premolar and presence of accessory foramina were noted.
Results: Out of 52 skulls examined,  infra orbital foramen was single in 50 skulls on both sides. The sagittal distance (mean distance between infraorbital margin to superior margin of infraorbital foramen) on the right side was 3.628mm and on left side was 3.822mm. Minimum distance from  infra orbital margin to superior margin of infraorbital foramen was 2.5mm and maximum was 6mm. The mean transverse measurement from lateral margin of pyriform aperture to medial margin of infra orbital foramen on right side was 7.451mm   and 7.865mm on  left side. The minimum distance from lateral margin of pyriform aperture to medial margin of infra orbital foramen was 11mm and  maximum was 16mm. In all 52 skulls infraorbital foramen was lateral to 1st premolar except in two skulls with accessory foramen. In skull with accessory foramen, one of the accessory foramina was found to be medial to premolar. Out of 52 skulls studied, shape of the infraorbital foramen was bilaterally vertically oval in 11 skulls, bilaterally transversely oval in 18 skulls and bilaterally circular in 12 skulls, whereas in 9 skulls the infraorbital foramen was vertically oval on one side and transversely oval on the other side. Two skulls had accessory foramen. In one of the two skulls the accessory foramen was unilateral on left side. The shape of both foramina on left side was circular, whereas on  right side the shape of the foramen was transversely oval. In the 2nd skull, accessory foramina were present on both sides; the shapes of all foramina were transversely oval.
Conclusion: The findings of our present study will act as a guide for the dentists, surgeons and anaesthetists in localizing  infraorbital foramen for infraorbital nerve block in various surgeries.
Key words: Infraorbital foramen, Accessory infraorbital foramen, Pyriform aperture.

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K. Rajeswari, M.Rohinidevi, V.Vimala, D.Megala. MORPHOMETRIC ANALYSIS OF INFRA ORBITAL FORAMEN IN HUMAN DRY SKULLS. Int J Anat Res 2016;4(3):2725-2729. DOI: 10.16965/ijar.2016.317