Abstract
The objective of this study was to determine the responsiveness of oral health–related quality of life (OHRQoL) (oral health impact profile [OHIP] and oral impact on daily performance [OIDP]) and health-related quality of life (HRQoL) (World Health Organization quality of life scale, brief [WHOQOL-BREF]) in dental caries restoration treatment. The study also aimed to assess the influence of treatment on the responsiveness of patients’ quality of life (QoL). A total of 126 patients (aged 16–40 years) received dental caries restoration treatment with a 2-week follow-up and pre- and posttreatment interviews by questionnaire. Patients were assessed for their perceptions of OHRQoL and HRQoL by using the OHIP, OIDP, and WHOQOL-BREF measures. The responsiveness of all outcome measurements was assessed by effect size (ES). Stepwise multiple regression analysis was used to examine the association with the responsiveness of all outcome measurements. Significant differences were found between OIDP (ES = 0.39), OHIP (ES = 0.54), and WHOQOL-BREF (ES = 0.13) with regard to pretreatment and posttreatment (p-values: <0.0001, <0.0001, and 0.0120, respectively). Sex and dental caries status at baseline were significantly associated with responsiveness by all measurements. This study suggests that dental caries treatment moderately improves OHRQoL, but is less related to HRQoL. Furthermore, the number of dental caries and restoration are important factors affecting the improvement of patients’ perceived OHRQoL.
Highlights
We found that caries treatment can improve the oral health–related quality of life (OHRQoL), but fewer improvements were found in health-related quality of life (HRQoL)
We used several quality of life (QoL) questionnaires that include the dimension of oral health–related status and overall health, and we verified the responsiveness of the different QoL scales
All three questionnaires used in this study had good reliability, and Cronbach's alpha was 0.95, 0.94, and 0.92 for Oral Health Impact Profile (OHIP), OIDP, and WHOQOL-BREF, respectively
Summary
The objective of this study was to determine the responsiveness of oral health–related quality of life (OHRQoL) and health-related quality of life (HRQoL) (World Health Organization quality of life scale, brief [WHOQOL-BREF]) in dental caries restoration treatment.
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