Oral Health Assessment and Outcomes in Aging Populations

The global increase in life expectancy has brought oral health in older adults to the forefront of public health and clinical practice. Ageing is accompanied by shifts in oral ecology, salivary function and immune competence that elevate the risk of caries, periodontitis, mucosal lesions and tooth loss. These conditions contribute to pain, dysphagia, malnutrition and impaired social participation. Effective assessment in geriatric cohorts demands validated, multidimensional instruments that capture clinical signs, functional status and patient-reported outcomes. Incorporating measures of oral-health-related quality of life alongside objective indices can guide individual care plans and population-level interventions. Emerging evidence links poor oral health in older people with frailty, systemic inflammation and increased mortality risk, underscoring the importance of integrated oral–medical care pathways. Advances in non-dental professional training and telehealth present opportunities to enhance surveillance and early intervention in community and residential settings.

Research from Nature Portfolio

Recent umbrella analyses have illuminated the strong bidirectional associations between oral conditions and non-communicable diseases in ageing populations. Consolidated meta-analytic data reveal that older adults with chronic systemic disorders—such as diabetes, cardiovascular disease and neurodegenerative syndromes—exhibit higher prevalence of caries and periodontitis, while advanced oral disease may exacerbate systemic inflammation. Methodological gaps in existing studies have been identified, prompting calls for standardised, age-specific assessment protocols and harmonised reporting of oral–systemic outcomes. These findings advocate for routine incorporation of oral evaluations in comprehensive geriatric assessments to inform multidisciplinary management.

Oral Health Assessment and Outcomes in Aging Populations publication trend

The graph below shows the total number of articles in oral health assessment and outcomes in aging populations across all publications each year (not limited to Nature Index journals).

Technical terms

Oral Health Assessment Tool (OHAT): A checklist-based instrument evaluating eight aspects of the oral cavity, designed for use by non-dental staff.

Revised Oral Assessment Guide (ROAG): A structured tool assessing oral health across multiple domains including mucosa, saliva and dentures, focusing on early detection of problems.

Oral-health-related quality of life (OHRQoL): A patient-centred measure reflecting the impact of oral conditions on daily function, comfort and psychosocial well-being.

Non-communicable diseases (NCDs): Chronic conditions such as diabetes or cardiovascular disease, which have established links with oral health in older adults.

References

1. An umbrella review of the evidence linking oral health and systemic noncommunicable diseases. Nature Communications (2022).
2. Measurement properties of oral health assessments for non-dental healthcare professionals in older people: a systematic review. BMC Geriatrics (2020).
3. Poor oral health and mortality in geriatric patients admitted to an acute hospital: an observational study. BMC Geriatrics (2020).