Page 149 - FINAL COMPENDIUM 2020-2021 27.2.2022

PATTERN OF MALOCCLUSION AMONG ORTHODONTIC PATIENTS IN EAST COAST OF
SABAH

Lee JH, Lillybia EE
Objectives: This study reviewed the pattern of malocclusion among orthodontic patients
in East Coast of Sabah and the type of treatment indicated for the patients. Materials and
methods: A total of 138 pre-treatment orthodontic records of patients who attended the
orthodontic consultation clinic in year 2018 were included in this cross-sectional
retrospective study. Data taken were demographic data, source of referral, BSI (British
Standards Institutes) incisor classification, skeletal pattern, and type of treatment. All data
were analysed descriptively using Stata 15. Results: Mean age of the patients was 16.89
± 0.37 years. More females sought orthodontic treatment (n=101, 73.19%) than males.
Majority of the patients were Chinese (n=68, 49.28%) and Bumiputera Sabah (n=55,
39.86%). Main source of referral was from dental officers (n=128, 92.75%). The
distribution of malocclusion showed high percentage of Class II division 1 (n=56, 40.58%),
followed by Class III (n=45, 32.61%), Class I (n=34, 24.64%) and Class II division 2 (n=3,
2.17%). For skeletal pattern, more patients presented with Class II (n=54, 39.13%), while
the number of patients presented with Class I and Class III were equal (n=42, 30.43%).
Class III malocclusion (n=29, 42.65%) and Class III skeletal pattern (n=29, 42.65%) were
more common in Chinese patients. Treatment indicated was mostly fixed orthodontic
appliance (n=120, 86.96%). Conclusion: Class II Division 1 malocclusion and Class II
skeletal pattern were most common among the patients. Class III malocclusion and Class
III skeletal pattern were typical features among the Chinese patients. Fixed orthodontic
appliance was the most common treatment method.

Keywords: Pattern, Malocclusion, Orthodontic

Published in Jurnal Sains Kesihatan Malaysia. 2021, Vol 19 (2): Page 42-47
Poster presentation at the 7 Sabah Medical Research & Scientific Conference (Sabah Research Day) 2019.
th
Dr Lee Jin Han
Orthodontic Specialist Unit
Queen Elizabeth II Hospital
Kota Kinabalu, Sabah

Dr Lillybia @ Emily Ebin
Orthodontic Specialist Unit
Sandakan Dental Clinic
Sandakan, Sabah

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