The purpose of this study was to determine which factors related to patient self-assessment of dentures are associated with changes in oral health-related quality of life (OHRQoL) among edentulous patients after replacement of complete dentures, and to determine whether masticatory performance as determined using an objective method affects the changes in OHRQoL among edentulous patients. As a preliminary study, the existing questionnaire regarding self-assessment of dentures consisting of 39 question items, measured with a 100-mm visual analogue scale, was analysed by factor analysis. Then a questionnaire, composed of 22 question items, was developed containing six subscales of 'function', 'lower denture', 'upper denture', 'expectation', 'aesthetic and speech' and 'importance'. Final participants in the present study comprised 93 edentulous patients requiring new conventional complete dentures (44 men, 49 women; mean age, 75·0 years). These patients were asked to complete the Japanese version of the Oral Health Impact Profile (OHIP)-EDENT, comprising 19 question items for assessment of OHRQoL in edentulous patients, along with the developed questionnaire regarding self-assessment of dentures. Moreover, masticatory performance was measured using a colour-changeable chewing gum. The questionnaire and measurement were completed twice; before and after replacement of complete dentures. Stepwise multiple regression analysis identified 'lower denture' and 'aesthetic and speech' as significant independent variables besides OHIP-EDENT scores before replacement. These results suggest that sufficient retention of lower dentures and appropriate appearance may lead to improved OHRQoL in edentulous patients.
PBS is generally not associated with severe psychiatric disorders. Absence of a dental trigger predicts a psychiatric comorbidity, which affects the psychopharmacological outcome. Antidepressant or antipsychotic therapy may be effective for symptom management in PBS.
Objective: To evaluate the reliability and validity of the Japanese version of the Oral Health Impact Profile for edentulous (OHIP-EDENT-J) patients. Background: Oral Health Impact Profile for edentulous is an appropriate instrument for assessing the Quality of life (QOL) in edentulous patients. However, the reliability and validity of the Japanese version had not been evaluated. Methods: The study was conducted on 116 edentulous patients (Group A, requiring new dentures, n = 61; Group B, already having dentures, n = 55). Cronbach's alpha (a) was used to measure internal consistency of the summary scores for OHIP-EDENT-J and various subscales in Groups A and B. The interclass correlation coefficient (ICC) and 95% confidence interval of the summary scores for OHIP-EDENT-J and subscales were calculated. The summary scores for OHIP-EDENT-J in Groups A and B were compared with evaluate content validity. The Spearman's correlation coefficient between the summary scores for OHIP-EDENT-J and the satisfaction with dentures (100 mm VAS) was calculated for Groups A and B to evaluate concurrent validity. Results: The reliability of the summary scores for OHIP-EDENT-J was good (a = 0.93). The ICC of the summary scores for OHIP-EDENT-J was 0.85. Summary scores for OHIP-EDENT-J were significantly different (p = 0.027) between Group A and Group B, with Group A having the higher value. The Spearman's correlation coefficient for the degree of satisfaction with dentures and the summary scores for OHIP-EDENT-J, calculated for Groups A and B (n = 107), was )0.609. Conclusion: The OHIP-EDENT-J, a questionnaire on oral health-related QOL comprising 19 items, showed good reliability and validity for edentulous patients.
A combination of mechanical and chemical denture cleaning methods was more effective at cleaning dentures than the mechanical method alone. Even if denture cleaning improves denture hygiene, it may not increase patient satisfaction or OHRQoL.
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