Abstract
Introduction: While measurement of nasolabial angle and mentolabial angle is an important clinical examination in pre-orthognathic surgery assessment, data on non-western population is limited. This study was therefore conducted to determine the range of nasolabial angle and mentolabial angle in normal Malaysian adult with comparison of males and females. Materials and Methods: A total of 50 Class I males and 52 Class I females aged 19-30 years from three main ethnic groups were randomly selected from dental students, medical students and staffs in dental clinic of Hospital Universiti Sains Malaysia (HUSM). The photographic set-up consisted of a 50mm Nikon DAT camera held in position by a tripod. The photos taken in JPEG format were digitalized and analysed using ProVixwin software. Independent t-test was used to compare any possible gender difference in nasolabial and mentolabial angles. Results: The mean of nasolabial angle and mentolabial angle for male was 92.99? and 130.44? whereas for females it was 95.04? and 130.73? respectively. Gender differences were found to be insignificant for both nasolabial angle and mentolabial angle. Conclusion: Despite having great variation in our population, the nasolabial angle and mentolabial angle are gender independent. Bangladesh Journal of Medical Science Vol. 12 No. 02 April13 Page 209-214 DOI: http://dx.doi.org/10.3329/bjms.v12i2.14951
Highlights
Physical appearance has gained its importance in this modern society
The nasolabial angle was found to be more acute in males than in females
No significant gender differences were shown for both nasolabial angle and mentolabial angle
Summary
Physical appearance has gained its importance in this modern society. Social acceptance, psychological well-being, and self-esteem of one are in close relation to his/her physical appearance. In order to have a pleasing physical appearance which is acceptable by the society, people are willing to change their facial proportion. Unattractive facial proportions can be modified through dentofacial orthopedics, orthognathic surgery, and esthetic soft tissue and/or hard tissue surgery, either alone or in various combinations[3]. Norms are used to define what acceptable facial traits are and to establish a range of values within which lies acceptability[6]. These norms are used as a guide in which through various treatments, facial unattractiveness with underlying discrepancies should be brought closer to the ideal norm. This study was designed to determine the norms of nasolabial angle and mentolabial
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