Association between malocclusion, caries and oral hygiene in children 6 to 12 years old resident in suburban Nigeria
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
BMC Oral Health
Abstract
Background: There are conflicting opinions about the contribution of malocclusions to the development of dental
caries and periodontal disease. This study’s aim was to determine the association between specific malocclusion
traits, caries, oral hygiene and periodontal health for children 6 to 12 years old.
Methods: The study was a household survey. The presence of malocclusion traits was assessed in 495 participants.
The caries status and severity were assessed with the decayed, missing, and filled teeth (dmft/DMFT) index and the
pulpal involvement, ulceration, fistula and abscess (pufa/PUFA) index. The Simplified Oral Hygiene Index (OHI-S)
and Gingival Index (GI) were used to assess periodontal health. The association between malocclusion traits, the
presence of caries, poor oral hygiene, and poor gingival health were determined with chi square and logistic
regression analyses. Statistical significance was inferred at p < 0.05.
Results: Seventy-four (14.9%) study participants had caries, with mean (SD) dmft/DMFT scores of 0.27 (0.82) and
0.07 (0.39), respectively, and mean (SD) pufa/PUFA index scores of 0.09 (0.43) and 0.02 (0.20), respectively. The mean
(SD) OHI-S score was 1.56 (0.74) and mean (SD) GI score was 0.90 (0.43). Dental Aesthetic Index scores ranged from
13 to 48 with a mean (SD) score of 20.7 (4.57). Significantly greater proportions of participants with crowding (p =
0.026) and buccal crossbite (p = 0.009) had caries. Significantly more children with increased overjet (p = 0.003) and
anterior open bite (p = 0.008) had moderate to severe gingivitis. Poor oral hygiene (OR: 1.83; CI: 1.05–3.18 p = 0.033),
crowding (OR: 1.97; CI: 1.01–3.49; p = 0.021) and buccal crossbite (OR: 6.57; CI: 1.51–28.51 p = 0.012) significantly
increased the odds of having caries. Poor oral hygiene (p < 0.001), increased overjet (p = 0.003), and anterior open
bite (p = 0.014) were the only significant traits associated with gingivitis.
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Citation
Kolawole, K. A., & Folayan, M. O. (2019). Association between malocclusion, caries and oral hygiene in children 6 to 12 years old resident in suburban Nigeria. BMC oral health, 19(1), 1-9.