Oral Health-Related Quality of Life of Dependent Patients in Muang-Trang District, Trang Province
Main Article Content
Abstract
This descriptive study aimed to assess the oral health–related quality of life (OHRQoL) among dependent patients in Mueang Trang District, Trang Province. A total of 215 participants were included. Data were collected was conducted between February and April 2025 using a structured questionnaire covering personal, clinical, and environmental factors. The questionnaire was validated by five experts, with an item–objective congruence (IOC) index ranging from 0.6 to 1.0, and the standardized OHIP-14 instrument demonstrated high reliability (Cronbach’s alpha = 0.92). Descriptive statistics, including frequency, percentage, mean, standard deviation, minimum, and maximum. The results showed that most participants were female (67.44%) with a mean age of 73.85±0.60 years. The majority brushed their teeth twice daily (73.46%), while 33.49% had poor oral cleanliness. The mean number of natural teeth was 19.11±8.47, with an average of 3.37±3.08 occluding pairs. Dry mouth with reduced saliva flow (77.21%) of participants. Most had access to oral hygiene equipment (95.81%) and caregivers (81.86%). Oral health problems mainly affected physical disability (32.56%), physical pain (25.55%), and social disadvantage (20.00%). The findings underscore the need to enhance access to dental care, promote prosthetic rehabilitation, and strengthen oral hygiene practices, together with providing essential facilities and motivational support for dependent patients to reduce adverse oral health impacts on daily living and improve their quality of life.
Article Details

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
References
World Health Organization. WHOQOL user manual. Geneva: World Health Organization; 2012.
Sirikhampeng A, Phosing P. Long-term care for dependent elderly in Thailand 4.0. Dhammathas Journal of Academic Research. 2017;17(3):236–242.
Health Systems Research Institute, Foundation of Thai Gerontology Research and Development Institute. Elderly care manual: Happy oral health. Bangkok: Open Worlds Publishing House; 2016.
Krisadapong S. Oral health-related quality of life. 2nd ed. Bangkok: Chulalongkorn University Press; 2021.
Bureau of Dental Health, Department of Health, Ministry of Public Health. The 9th Thailand national oral health survey report, 2023. Bangkok: Aksorn Graphic and Design Publishing; 2024.
Elderly and Disabled Center, Trang Municipality. Screening and health assessment data of the elderly in Trang Municipality area: Proactive health promotion report. Trang: Trang Municipality; 2024 Aug 10. p.8–12. (in Thai)
Health Data Warehouse, Ministry of Public Health. Dental service data [Internet]. 2024 Oct 1 [cited 2024 Oct 29]. Available from: https://trg.hdc.moph.go.th/hdc/reports/page.Php?cat_id=fc73b811eb6d9206e7e5baf8ad20d7b9 (in Thai)
Kaewmakham S, Kaewmakham A. Oral health-related quality of life of homebound elderly in Chiang Khong District, Chiang Rai Province. Chiang Rai Medical Journal. 2018;10(1):37–47.
Phumprasertchok A. Oral health status and oral health-related quality of life among elderly patients in a geriatric clinic. Buddhachinaraj Medical Journal. 2023;40(3):246–259.
Nammontri O, Namwong W, Kaewmanee A, Maneerat S, Phanthawi S. Oral health-related quality of life among the elderly in Huai-Nuea Subdistrict, Khukhan District, Sisaket Province. Journal of Dental Public Health. 2022;33(1):14–27. (in Thai)
Manaso S. Proactive care implementation for patients with dependency [interview]. Senior Professional Nurse, Head of the Elderly and Disabled Center, Trang Municipality; 2024 Aug 15.
Nammontri O. Validation of the Thai version of the 14-item Oral Health Impact Profile (Thai OHIP-14) amongst the general Thai adult population in a community setting. Journal of Health Research. 2017;31(6):481–486.
Hsieh F, Bloch DA, Larsen MD. A simple method of sample size calculation for linear and logistic regression. Statistics in Medicine. 1998;17(14):1623–1634.
Singh V. Variance inflation factor: How to detect multicollinearity [Internet]. 2024 Nov 18 [cited 2025 Apr 7]. Available from: https://www.datacamp.com/tutorial/variance-inflation-factor
Cochran WG. Sampling techniques. 3rd ed. New York: John Wiley & Sons; 1977.
Mutarai T. Development of oral health-related quality of life among the elderly in Nikom Kham Soi District, Mukdahan Province. Nakhon Phanom Hospital Journal. 2023;10(1):1–15.
Ruengam P. Oral health-related quality of life among the elderly in the service area of Prankratai Hospital. Sawanpracharak Medical Journal. 2021;18(2):130–141.
Puranen T, Hiltunen K, Kautiainen H, Suominen MH, Salminen K, Mäntylä P, Roitto HM, Pitkälä KH, Saarela RKT. Relationship between oral frailty, health-related quality of life, and survival among long-term care residents. European Geriatric Medicine. 2023;14(6):1307–1315.