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Effectiveness of Professional Oral Health Care Interventions Delivered by Dental Hygienists: Focusing on Older Adults Attending Day Care Centers

  • The Journal of Transdisciplinary Studies
  • Abbr : JTS
  • 2026, 10(1), pp.13~20
  • DOI : 10.22685/jts.2026.10.1.13
  • Publisher : The Society for Transdisciplinary Studies
  • Research Area : Interdisciplinary Studies > Interdisciplinary Research
  • Received : March 16, 2026
  • Accepted : April 25, 2026
  • Published : April 30, 2026

Jong-Hwa Jang ORD ID 1,  Myeong-Hwa Park ORD ID 1,  Kim, YoungSun ORD ID 2,  Whang sun hee ORD ID 3,  Min-Young Kim 4,  Seong, Mi Gyung ORD ID 5

1단국대학교
2대구보건대학교
3신구대학교
4호원대학교
5마산대학교

Accredited

ABSTRACT

Objectives: This study aimed to evaluate the effectiveness of dental hygienist-led professional oral health care interventions for older adults attending day care centers and to provide evidence for defining the roles of geriatric dental hygienists. Methods: This pre-post intervention study included 79 older adults attending day care centers and implemented a 6-week home-visit oral health program. Oral health status was assessed using the Simplified Oral Hygiene Index (OHI-S) and the Winkel Tongue Coating Index (WTCI), while oral health-related quality of life was measured using the Geriatric Oral Health Assessment Index (GOHAI) through structured interviews. Results: Following the 6-week intervention, OHI-S and WTCI scores significantly decreased (p = 0.001), while GOHAI scores significantly improved (p = 0.008), indicating a positive effect of the intervention. Conclusions: Dental hygienist-led home-visit oral health interventions were effective in improving oral health status and oral health-related quality of life among older adults. These findings support the need for policy and institutional frameworks to facilitate the broader implementation of such interventions.

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This paper was written with support from the National Research Foundation of Korea.