Morphologic and morphometric analysis of mandibular lingula

Year 2020, Volume: 14 Issue: 1, 16 - 21, 30.04.2020

Öznur Özalp Hande Salim Busehan Bilgin Serra Öztürk Merve Sarıkaya Doğan Mehmet Berke Göztepe Engin Çalgüner Muzaffer Sindel Alper Sindel

Abstract

Objectives: The aim of this study was to determine the morphology and location of mandibular lingula in relation to the surrounding structures in adult mandibles to provide data that can be used during oral and maxillofacial procedures.
Methods: This study was performed on 50 dry adult mandibles of Turkish population. The shape of the lingula was examined bilaterally and classified into four types. Osteometric measurements were performed on both sides using a digital caliper. Statistical analysis was performed to determine the differences between right and left side measurements.
Results: The most frequently encountered shape of lingula was triangular type (42%). The assimilated type was not observed among the mandibles studied. The mean distance between the lingula and the anterior border of the ramus of the mandible and between the lingula and the posterior border of the ramus of the mandible was measured as 16.86±2.73 mm and 14.7±1.6 mm, respectively. The mean height of the lingula was measured as 11.92±2.03 mm. No statistically significant differences were observed between the right and left side measurements for any parameters.
Conclusion: The findings of present study may be used for various oral and maxillofacial surgical procedures and help surgeons in avoiding inferior alveolar nerve injury during mandibular osteotomies.

Keywords

inferior alveolar nerve, lingula of the mandible, mandibular foramen, sagittal split ramus osteotomy

References

• Asdullah M, Ansari AA, Khan MH, Salati NA, Khawja KJ, Sachdev AS. Morphological variations of lingula and prevalence of accessory mandibular foramina in mandibles: A study. Natl J Maxillofac Surg 2018;9:129.
• Antony P, Sebastian A, Varghese KG, Sobhana C, Mohan S, Soumithran C, Domnic S, Jayakumar N. Neurosensory evaluation of inferior alveolar nerve after bilateral sagittal split ramus osteotomy of mandible. J Oral Biol Craniofac Res 2017;7:81-8.
• Samanta PP, Kharb P. Morphological analysis of the lingula in dry adult human mandibles of north Indian population. Journal of Cranio-Maxillary Diseases 2012;1:7-11.
• Kim HJ, Lee HY, Chung IH, Cha IH, Yi CK. Mandibular anatomy related to sagittal split ramus osteotomy in Koreans. Yonsei Med J 1997;38:19-25.
• Kositbowornchai S, Siritapetawee M, Damrongrungruang T, Khongkankong W, Chatrchaiwiwatana S, Khamanarong K, Chanthaooplee T. Shape of the lingula and its localization by panoramic radiograph versus dry mandibular measurement. Surg Radiol Anat 2007;29:689-94.
• Tuli A, Choudhry R, Choudhry S, Raheja S, Agarwal S. Variation in shape of the lingula in the adult human mandible. J Anat 2000;197:313-7.
• Sekerci AE and Sisman Y. Cone-beam computed tomography analysis of the shape, height, and location of the mandibular lingula. Surg Radiol Anat 2014;36:155-62.
• Senel B, Ozkan A, Altug HA. Morphological evaluation of the mandibular lingula using cone-beam computed tomography. Folia Morphol (Warsz) 2015;74:497-502.
• Nishioka GJ and Aragon SB. Modified sagittal split technique for patients with a high lingula. J Oral Maxillofac Surg 1989;47:426-7.
• Smith BR, Rajchel JL, Waite DE, Read L. Ramus of mandible anatomy as it relates to the medial osteotomy of the sagittal split ramus osteotomy. J Oral Maxillofac Surg 1991;49:112-6.
• Lima F, Neto OO, Barbosa F, Sousa-Rodrigues C. Location, shape and anatomic relations of the mandibular foramen and the mandibular lingula: a contribution to surgical procedures in the ramus of the mandible. Oral Maxillofac Surg 2016;20:177-82.
• Gupta S and Pandey K. Morphological analysis of the lingula in dry mandibles of individuals in North India. IOSR Journal of Dental Medical Sciences 2014;13:4-6.
• Nirmale V, Mane U, Sukre S, Diwan C. Morphological features of human mandible. International Journal of Recent Trends in Sciences Technology 2012;2:38-43.
• Lopes P, Pereira G, Santos A. Morphological analysis of the lingula in dry mandibles of individuals in Southern Brazil. Journal of Morphological Sciences 2010;27:136-8.
• Jansisyanont P, Apinhasmit W, Chompoopong S. Shape, height, and location of the lingula for sagittal ramus osteotomy in Thais. Clin Anat 2009;22:787-93.
• Woo SS, Cho JY, Park WH, Yoo IH, Lee YS, Shim KS. A study of mandibular anatomy for orthognathic surgery in Koreans. Journal of Korean Association of Oral and Maxillofacial Surgery 2002;28:126-31.
• Nicholson ML. A study of the position of the mandibular foramen in the adult human mandible. Anat Rec (Hoboken) 1985;212:110-2.