Abstract
The aim of this study was to evaluate the impact of malocclusion severity on the oral health-related quality of life (OHRQoL) of non-white adolescents. A cross-sectional study was conducted with 585 non-white Brazilian adolescents (12-15 years). The Dental Aesthetic Index (DAI) was used for the clinical assessment of malocclusion and Oral Health Impact Profile (OHIP-14) on OHRQoL. Deep bite and transverse occlusal relationships were assessed in association with the DAI. The adolescents with DAI 3 and 4 were distributed into 4 groups: G1 - individuals without transverse occlusal relationships or deep bite; G2 - individuals with only posterior crossbite; G3 - individuals with only deep bite; and G4 - individuals with Brodie bite. The backward stepwise procedure was used to select variables on each level, eliminating variables with a p≤0.20. From the logistic regression analyses, the adjusted odds ratios were estimated with the respective 95% confidence intervals. The adolescents with severe malocclusion divided into the G2, G3 and G4 showed p-value of 0.0501, 0.1475, and 0.5407, respectively, but did not remain in the final model. Malocclusion severity had no impact on the OHRQoL of non-white adolescents.
Highlights
The individual’s quality of life may be influenced by their oral condition[1]
Studies performed with non-white populations have assessed the traditional parameter of malocclusion determined by the Dental Aesthetic Index (DAI) and, among the most prevalent occlusal changes, overjet and crowding stood out[28]
There is a lack of studies focusing on transverse problems and deep overbite, which are not discussed in the DAI and have an impact on orthodontic treatment need
Summary
The individual’s quality of life may be influenced by their oral condition[1]. In this context, studies have shown that malocclusion may lead to negative repercussion on the lives of individuals[2,3,4], but there is still divergence about the extent to which occlusion can impact quality of life[5,6]. The association of severe malocclusion with the most unfavorable experiences regarding oral health-related quality of life (OHRQoL), especially from functional and emotional aspects[8], has stood out in the literature. There are different studies focusing on better understanding the epidemiological profile of severe and disabling malocclusions and their associated factors[9], the implications of specific occlusal changes on OHRQoL, such as vertical and transverse problems[10], have not yet been elucidated
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