SEXUAL DIMORPHISM OF SKELETAL CLASS III MALOCCLUSION IN YEMENIS ADULT

Mohammed Abdullah Al-Hababy; Ramy Abdul Rahman Ishaq

doi:10.22270/ujpr.v11i5.1667

Mohammed Abdullah Al-Hababy Department of Orthodontics, Pedodontics and Preventive Dentistry, Faculty of Dentistry, Sana’a University, Sana’a, Republic of Yemen.
Ramy Abdul Rahman Ishaq Director of Postgraduate Program Orthodontics, Department of Orthodontics, Pedodontics and Preventive Dentistry, Faculty of Dentistry, Sana’a University, Sana’a, Republic of Yemen.

10.22270/ujpr.v11i5.1667

Keywords:

cephalometry, clinical diagnosis, Class III malocclusion, orthodontic treatment, sexual dimorphism

Abstract

Aim: Identification of sexual dimorphism in skeletal Class III malocclusion can help improve clinical diagnosis and orthodontic treatment. There is a continuing dispute as to the extent of sexual dimorphism in skeletal Class III malocclusion. The purpose of this study is to investigate the sexual dimorphism of cephalometric data in Class III malocclusion among Yemeni adults.

Methods: This retrospective cross-sectional study examined 144 lateral cephalographs of Class III malocclusion in Yemeni adults, including 67 men and 77 women, who ranged from 16 to 40 years. The cephalometric x-rays were digitized and traced using OrisCeph RX CE software to measure a total of 48 craniomaxillofacial variables. Descriptive statistics of data were calculated for each gender. To assess sexual dimorphisms across all cephalometric variables, the Mann-Whitney U test was employed.

Results: Most variables indicated that males exhibited greater values than females. Adult Yemeni males with Class III malocclusion had greater values in linear measurements of the cranial base, maxilla, mandible, and facial heights than female patients.

Conclusions: Sexual dimorphism exists in Yemeni adults with skeletal Class III malocclusions. The results are presented to confirm the actual variations in skeletal features between two sexes of Yemeni adults. Sexual dimorphism should be considered in clinical diagnosis, treatment planning, and orthodontic treatment.