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The effect of maximum bite force on alveolar bone morphology
U Thongudomporn1, V Chongsuvivatwong, A F Geater
1Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hatyai, Songkhla, Thailand. udom.t@psu.ac.th
Objectives:
To investigate to what extent maximum bite force contributes to alveolar bone morphology parameters, i.e. alveolar thickness, shape and arch width.
Design:
An observational cross-sectional survey.
Setting And Sample Population:
One hundred and fifty one 12- to 14-year-old students from a secondary school in Hatyai City, Songkhla Province, Thailand.
Material And Methods:
Height, weight and maximum bite force of each subject were recorded. Alveolar bone morphology parameters were measured from study models.
Results:
Maximum bite force moderately correlated with alveolar thickness and shape (r = 0.31-0.44, p < 0.001), but weakly correlated with arch width (r = 0.03-0.05, p > 0.05). After adjusting for gender and body mass index (BMI), the maximum bite force significantly determined alveolar thickness and shape (p < 0.001), accounting for 10-20% of the variations. Boys were associated with larger posterior arch width (p < 0.01), where BMI was not associated with alveolar bone morphology parameters (p > 0.01) after Bonferroni correction for multiple testing.
Conclusion:
Maximum bite force had a selective influence on alveolar thickness and shape, but not on arch width.
