Morphological Changes and Gender-Based Differences in Human Dry Mandible

  • Madhu Deva S First Year BDS Student, JKKN Dental College and Hospital, Namakkal Dist, Tamil Nadu, India.
  • Kowsheka V First Year BDS Student, JKKN Dental College and Hospital, Namakkal Dist, Tamil Nadu, India.
  • Vennila G Senior Lecturer, Department of Anatomy, JKKN Dental College and Hospital, Namakkal Dist, Tamil Nadu, India.
Keywords: Mandible, Condylar Volume, Angle of Mandible, Mandibular Canal, Forensic Dentistry, Maxillofacial Surgeons


Introduction: The natural ageing process can cause changes in the teeth and gums, which can further impact the structure and function of the mandible. The major parts of a mandible are the condylar process, the angle of the mandible, and the mandibular canal. These anatomical structures play a key role in various branches of dentistry like orthodontics, prosthodontics, forensic dentistry, and maxillofacial surgery.
Methods: The present study included 100 dry adult human mandibles of known genders. We measured the condylar volume with a vernier calliper, the angle of the mandible with a protractor, and the length of the mandibular canal by passing a probe through the mandibular foramen to the mental foramen.
Results: We found that the angle of the mandible was higher in females, while the condylar volumes were greater in males. The length of the mandibular canal did not show much difference in the two genders. The mean value of mandibular canal length in adult females was greater than that of males, and the p value was greater than 0.05, making this difference statistically insignificant (p = 0.1318). There was no correlation between gender and mandibular canal.
Conclusion: The study showed that two parameters (condylar volume and angle of mandible) can undoubtedly be used for assessing sexual dimorphism and can also be an aid in various branches of dentistry with respect to diagnoses, treatment plans, executing surgeries, rehabilitation, and facial reconstructions.

How to cite this article:
Deva S M, Adudeva S, Kowsheka V, Vennila G. Morphological Changes and Gender-Based Differences in Human Dry Mandible. Chettinad Health City Med J. 2024;13(1):113-117.



Dubner R, editor. The neural basis of oral and facial function. New York: Springer Science & Business Media; 2013. [Google Scholar]

Heij DG, Opdebeeck H, van Steenberghe D, Kokich VG, Belser U, Quirynen M. Facial development, continuous tooth eruption, and mesial drift as compromising factors for implant placement. Int J Oral Maxillofac Implants. 2006;21(6):867-78. [PubMed] [Google Scholar]

Dixon AD. Muscles, soft tissues, and craniofacial growth. In: Dixon AD, Hoyte AD, Ronning O, editors. Fundamentals of craniofacial growth. CRC Press; 2017. p. 443-62. [Google Scholar]

Legg LM. Dental radiography: an overview. Radiol Technol. 2003;75(1):15-31. [PubMed] [Google Scholar]

Cobourne MT, DiBiase AT. Handbook of orthodontics e-book [Internet]. London: Elsevier Health Sciences; 2015 [cited 2023 Apr 25]. Available from: [Google Scholar]

Bae JH, Choi YH, Cho BH, Kim YK, Kim SG. Autotransplantation of teeth with complete root formation: a case series. J Endod. 2010;36(8):1422-6. [PubMed] [Google Scholar]

Choi KY, Yang JD, Chung HY, Cho BC. Current concepts in the mandibular condyle fracture management part I: overview of condylar fracture. Arch Plast Surg. 2012 Jul;39(4):291-300. [PubMed] [Google Scholar]

Enlow DH. A morphogenetic analysis of facial growth. Am J Orthod. 1966 Apr;52(4):283-99. [PubMed] [Google Scholar]

Lipski M, Tomaszewska IM, Lipska W, Lis GJ, Tomaszewski KA. The mandible and its foramen: anatomy, anthropology, embryology and resulting clinical implications. Folia Morphol (Warsz). 2013;72(4):285-92. [PubMed] [Google Scholar]

Isman O. Evaluation of jaw bone density and morphology in bruxers using panoramic radiography. J Dent Sci. 2021;16(2):676-81. [PubMed] [Google Scholar]

Chou HY, Müftü S, Bozkaya D. Combined effects of implant insertion depth and alveolar bone quality on periimplant bone strain induced by a wide-diameter, short implant and a narrow-diameter, long implant. J Prosthet Dent. 2010 Nov;104(5):293-300. [PubMed] [Google Scholar]

Cuccia AM, Caradonna C, Caradonna D. Manual therapy of the mandibular accessory ligaments for the management of temporomandibular joint disorders. J Am Osteopath Assoc. 2011 Feb;111(2):102-12. [PubMed] [Google Scholar]