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Updated: Jan 14, 2026

Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
Correlation of Active Daily Living and Oral Opportunistic Pathogens in Institutionalised People With Intellectual
Yu-Fen Yen1,2, Pei-Yun Sun3, Pei-Fang Tsai4
1Department of Stomatology, National Cheng Kung University Hospital, School of Dentistry & Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
Background:
Oral opportunistic bacteria pose health risks for people with intellectual disability, yet their relationship with activities of daily living (ADLs) remains underexplored.
Methods:
We conducted a cross-sectional study of 178 institutionalised people with intellectual disability. ADL was assessed by caregivers. Oral samples were collected non-invasively and analysed via culture-based methods. Student's t-test, Fisher exact test, and logistic regression were used to examine associations between ADL and oral pathogens.
Results:
Interestingly, individuals with intellectual disability and higher ADL scores exhibited a greater prevalence of oral opportunistic bacteria, notably Klebsiella pneumoniae (15.7%) and Prevotella melaninogenica (14.7%). No significant associations were found with demographic variables.
Conclusions:
Functional independence does not equate to adequate oral hygiene among people with intellectual disability. Enhancing self-care training, providing caregiver-assisted support, and increasing outreach dental services are recommended to mitigate oral health risks. Culture-based methods offer a practical approach for identifying bacterial presence in resource-limited settings.
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