JKAOH Journal of Korean Academy of Oral Health

ISSN(Print) 1225-388X ISSN(Online) 2093-7784


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Original Article

Journal of Korean Academy of Oral Health 2014; 38(3): 170-175

Published online September 30, 2014 https://doi.org/10.11149/jkaoh.2014.38.3.170

Copyright © Journal of Korean Academy of Oral Health.

Validity and reliability of a questionnaire for evaluating periodontal disease

Hye-Jung Jin1, Kwang-Hak Bae2, Jin-Bom Kim3, Deok-Young Park4, Seong-Hwa Jeong5, Beak-Il Kim6, Seung-Hwa Jeong3, Sang-Uk Im7, Youn-Hee Choi7

1Department of Dental Hygiene, Dong-Eui University, Busan, 2Department of Preventive & Public Health Dentistry, Seoul National University School of Dentistry, Seoul, 3Department of Preventive & Community Dentistry, Pusan National University School of Dentistry, Yangsan, 4Department of of Preventive and Public Health Dentistry, College of Dentistry, Gangneung-Wonju National University & Research Institute of Oral Science, Gangneung, 5Faculty of Health Science, Daegu Haany University, Gyeongsan, 6Department of Preventive Dentistry & Public Oral Helath, Yonsei University College of Dentistry, Seoul, 7Department of Preventive Dentistry, Kyungpook National University School of Dentistry, Daegu, Korea

Received: June 30, 2014; Accepted: July 14, 2014


Objectives: The purpose of this study was to develop a self-administered questionnaire survey to de-termine its validity and reliability as well as to improve the instructions for measurement of periodontal disease during oral examination for reliably calculating the prevalence of periodontal disease.Methods: The data obtained was analyzed using SPSS 20.0 and the WINSTEPS program that employs the Rasch model to evaluate validity and reliability of the instrument.Results: We developed a self-administered questionnaire survey consisting of 14 questions based on NHANES. We confirmed the reliability by testing and re-testing the questionnaire survey using self-administered methods. The average Kappa index obtained was 0.73, which indicated a relatively high reliability.Conclusions: Reliability and validity of the self-administered assessment tool for periodontal disease developed for the local situation/circumstances of Korea is suitable to be applied for oral examination of a large population. Moreover, the questionnaire survey for periodontal disease could be used to acquire data for constructing a database for oral health policy development.

Keywords: Periodontal disease, Questionnaire, Reliability, Validity