Association between motor proficiency and oral health in people with intellectual disabilities.
Fine motor deficits and exhausted caregivers predict worse oral hygiene in ID—screen both before planning tooth-brushing programs.
01Research in Context
What this study did
The team looked at the adults with intellectual disability. They scored each person's fine and gross motor skills with a short movement test.
A dentist counted plaque and gum bleeding. Caregivers also filled out a fatigue scale. The goal was to see if motor skills and caregiver energy predict mouth health.
What they found
People who moved their fingers better had cleaner teeth and less bleeding. Caregivers who felt worn out had clients with more plaque.
The link stayed even after age, meds, and living setting were held constant. In plain words: shaky hands plus tired staff equals dirty teeth.
How this fits with other research
Ramos-Sánchez et al. (2022) saw the same pattern in kids with ASD plus ID—lower IQ and ID together meant poorer motor scores. The new study shows the motor-health link keeps going into adulthood.
Engel-Yeger (2020) widens the lens: adults with poor coordination also report lower quality of life in mood, social, and daily domains. Motor trouble hurts more than just teeth—it drags down whole-life health.
Capio et al. (2013) add that the worse the motor score, the steeper the pile-up of handwriting, attention, and self-care problems. So a quick finger test can flag who needs the most support across the board.
Why it matters
Before you write a tooth-brushing program, test finger dexterity and ask how tired the caregivers feel. If either is low, add built-up handles, video models, or extra staff rotation. Targeting both skills and staff energy can cut plaque and bleeding without more dentist visits.
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02At a glance
03Original abstract
BACKGROUND: People with intellectual disabilities (IDs) may be at increased risk of developing periodontal diseases and dental caries due to poor oral hygiene. Our aim was to investigate motor proficiency factors associated with presence of visible plaque and gingival bleeding in people with IDs. We were particularly interested in the level of dependence, manual coordination and fine manual control of people with ID, as well as the level of exhaustion of the primary caregiver. METHODS: In this cross-sectional study, 299 people with ID were evaluated for oral hygiene using the simplified Visible Plaque Index and for gum inflammation using the Gingival Bleeding Index. The Bruininks-Oseretsky Motor Proficiency Test assessed motor proficiency through fine manual control (fine motor integration and fine motor precision) and manual coordination (manual dexterity and upper limb coordination). The level of dependence was assessed by the Katz dependency index, and the caregiver was tested for exhaustion using the fatigue severity scale. Prevalence ratios [and 95% confidence intervals (CI)] were calculated using crude and adjusted Poisson regression with robust variance. RESULTS: The exhaustion of the caregiver was associated positively to visible plaque [prevalence ratio (PR) = 1.36; 95% CI 1.06-1.65]. For gingival bleeding, people with IDs that had better fine motor integration (PR = 0.49; 95% CI 0.33-0.75) and precision (PR = 0.50; 95% CI 0.26-0.94), as well as manual dexterity (PR = 0.62, 95% CI 0.49-0.77), presented better results. CONCLUSION: Poor oral hygiene and gum inflammation were associated with motor proficiency of people with IDs and caregivers' exhaustion. Interventions to improve the oral health of people with IDs should take into account such conditions.
Journal of intellectual disability research : JIDR, 2021 · doi:10.1111/jir.12828