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Published on: February 2, 2020
Validating an alternate version of the chewing function questionnaire in partially dentate patients
Kazuyoshi Baba1, Mike T John, Mika Inukai
1Department of Prosthodontics, School of Dentistry, Showa University, Tokyo, Japan. kazuyoshi@dent.showa-u.ac.jp
BMC Oral Health
|March 18, 2009
Summary
This study validated an alternate chewing function questionnaire for Japanese patients with partial tooth loss. The results show the questionnaire is reliable and valid for assessing chewing ability and oral health-related quality of life.
Area of Science:
- Dental science
- Oral health research
- Psychometrics
Background:
- Assessing chewing function is crucial for partially dentate patients.
- Existing questionnaires may require adaptation for specific populations.
- Investigating the psychometric properties of alternate instruments is essential.
Purpose of the Study:
- To evaluate the dimensionality, reliability, and validity of an alternate chewing function questionnaire.
- To assess the questionnaire's suitability for use in Japanese partially dentate patients.
- To determine if the questionnaire can serve as a stand-alone instrument.
Main Methods:
- A cohort of 491 partially dentate patients in Japan completed the questionnaire.
- Exploratory factor analysis was used to assess dimensionality.
- Validity was examined by correlating scores with the Oral Health Impact Profile (OHIP-14).
- Reliability was assessed through internal consistency (Cronbach's alpha) and test-retest stability (intraclass correlation coefficient).
Main Results:
- Exploratory factor analysis supported the use of a summary score for chewing ability.
- Chewing function scores showed a significant negative correlation with OHIP-14 scores (r = -0.46), indicating better chewing ability is linked to better oral health-related quality of life.
- Internal consistency was satisfactory (Cronbach's alpha = 0.90).
- Test-retest reliability was good (intraclass correlation coefficient = 0.69).
Conclusions:
- The alternate chewing function questionnaire demonstrates good reliability and validity.
- The questionnaire is suitable for use as a stand-alone instrument in partially dentate patients.
- Findings support its application in Japanese clinical and research settings.
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