IJAR.2019.219
Type of Article: Original Research
Volume 7; Issue 3.1 (July 2019)
Page No.: 6762-6766
DOI: https://dx.doi.org/10.16965/ijar.2019.219
ANATOMICAL STUDY ON LOCATION OF GREATER PALATINE FORAMEN IN DRIED ADULT HUMAN SKULL: KEY TO SUCCESSFUL MAXILLARY NERVE BLOCK
Varalakshmi KL1, Sangeeta M *2.
1 Associate Professor, MVJ Medical College And Research Hospital, Dandupalya, Hoskote, Bangalore, Karnataka, India.
*2 Professor & Head, Department of Anatomy, MVJ Medical College And Research Hospital, Hoskote, Bangalore, Karnataka, India.
Corresponding author: Dr. Sangeeta M, Professor & Head, Department of Anatomy, MVJ Medical College And Research Hospital, Dandupalya, Hoskote, Bangalore, Karnataka, India. Ph.No.9980902559 E-Mail: drvara.hitesh@gmail.com
ABSTRACT:
Background: The greater palatine foramen (GPF) conducts greater palatine nerve ,responsible for the innervation of posterior part of the hard palate. Anaesthetic block for greater palatine nerve is highly recommended for surgical practices involving upper molar,maxillary sinus and nasal region.But the practical problem associated with anaesthesia is difficulty in locating the exact position of greater palatine foramen, leading to delivering insufficient anaesthetic solution.The greater palatine neurovascular structures enter the oral cavity through the greater palatine foramen so this foramen should be approached carefully during any surgical procedures to avoid damage to these neurovascular structure.
Materials and methods: 126 dried adult skull bones of unknown sex, obtained from the department of anatomy, MVJ Medical College and Research Hospital were used to locate the exact position of greater palatine foramen in relation to bony landmarks. On both side, the distance of greater palatine foramen from midline maxillary suture, posterior border of hardpalate, incisive fossa and lesser palatine foramen were measured with digital vernier caliper. Location of GPF in relation to molar or premolar tooth was also noted. The data obtained were analyzed statistically by calculating mean and standard deviation. The percentage was calculated for the location of GPF in relation to molar or premolar tooth.
Result: In the present study of anthropometric analysis of greater palatine foramen of 126 dried skulls ,it was observed that the most common location of greater palatine foramen was opposite to the third molar tooth . The mean distance between greater palatine foramen to mid maxillary suture was 13.71mm on right side and 13.72mm on left side and posterior border of hard palate on right side was 4.62mm and 4.49mm on left side. The mean distance between greater palatine foramen and incisive fossa was 36.73mm and 36.66mm on the right and left side respectively. The mean distance between greater palatine foramen and lesser palatine foramen was 1.47mm on right side and 1.49 mm on left side.
Conclusion: Results of present study may contribute greatly to the successful outcome of maxillofacial and oral surgeries regional anaesthesia.
Key words: Greater palatine foramen,Hard palate, Incisive fossa,Lesser palatine foramen,Mid maxillary suture.
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