Cephalometric norms of Malaysian Malays compared with Glasgow Caucasians

Hasan, Mohd Shafeeq (1998) Cephalometric norms of Malaysian Malays compared with Glasgow Caucasians. MSc(R) thesis, University of Glasgow.

Abstract

The aim of this study was to describe the lateral cephalometric norms for Malaysian Malays with normal occlusion and in addition, to document the differences between this sample and a Glasgow Caucasian sample. This is particularly to facilitate the description of dentofacial pattem/relationship, diagnosis and treatment planning, evaluation of treatment results, evaluation of stability and future relationships and as a baseline data for further research. The sample consist of 54 Malays (24 males and 30 females) with a mean age of 23.1 years and 45 Caucasians (20 males and 25 females) with a mean age of 22.6 years. Cephalometric tracings were done and the landmarks were digitized using PCDIG computer software. Twenty subjects were randomly selected from each group for the error study.
The results indicated that:
1. The Malaysian Malays have a slightly more prognathic Maxilla and Mandible
compared to the Caucasians. Otherwise, the skeletal pattern was almost similar.

2. The cranial base dimension suggested that the Malays have a smaller anterior and
total cranial base length.

3. The Malays have a bimaxillary dental proclination. The upper incisor was 7θ more
proclined than that of the Caucasians and the mandibular incisor was 5° more
proclined.

4. The Interincisal angle was 13° smaller in the Malays.

5. The lower incisor was more prominent in relation to the A-Pog line (4mm more
anterior compared to the Caucasian sample).

6. The soft tissue profile indicated that the Malays have a more prominent lower face
and a flatter upper face. The lips are more procumbent and the nose are flatter
compared to the Caucasian sample.

7. Similar differences were noted when the males and females were compared
between the two populations, except that the Malay females have a larger lower
facial height and mandibular corpus.

8. When comparing the Malays, the males have a slightly more prognathic maxilla
and a smaller cranial base angle than the females. The male subjects also showed
a larger dimension in all skeletal linear measurements. There were no differences
in the dental variables.

9. As the Malays, the male Caucasians have a smaller cranial base angle and linear
measurements were larger in the males compared to females. There were no
significant differences in the dental parameters.

• Item Type: Thesis (MSc(R))
• Qualification Level: Masters
• Keywords: Cephalometry, face, growth, Malays, dental care.
• Subjects: R Medicine > RK Dentistry
• Colleges/Schools: College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School
• Supervisor's Name: Kerr, Professor W.J.S
• Date of Award: 1998
• Depositing User: Theses Team
• Unique ID: glathesis:1998-84990
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 06 Mar 2025 14:51
• Last Modified: 06 Mar 2025 15:29
• Thesis DOI: 10.5525/gla.thesis.84990
• URI: https://theses.gla.ac.uk/id/eprint/84990