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Oral health in older adults
Oral health affects nutrition, speech, quality of life and the risk of aspiration pneumonia; in older adults dry mouth from drugs, root caries, gum disease and fungal inflammation under a denture are common — and any mouth sore that has not healed within 2–3 weeks requires a biopsy to exclude cancer.
Why it matters in the exam
The exam presents an older adult with a dry mouth, difficulty swallowing dry food and new caries, and asks for the common cause: anticholinergic drugs and other drugs (antidepressants, diuretics, antihistamines). Another case: redness and soreness under an upper denture and cracks at the corners of the mouth — denture stomatitis; treatment is removing the denture at night, cleaning it and antifungal treatment.
Recurring points: medication-related osteonecrosis of the jaw (MRONJ) — exposed jaw bone for more than 8 weeks in a patient who received bisphosphonates or denosumab, without radiation to the jaw; the risk is high mainly at oncology doses, so teeth are checked before such treatment starts; a white patch that cannot be wiped off (leukoplakia) and especially a red patch (erythroplakia) are premalignant lesions; and oral hygiene in institutions reduces pneumonia.
Many older adults do not see a dentist, and mouth problems sometimes show up as weight loss, refusal to eat or restlessness in a patient with dementia. So a mouth examination is part of geriatric assessment, especially before antiresorptive treatment and in a patient with nutritional decline.
Undiagnosed dental pain also causes agitation in dementia.
Key points
- Oral health affects nutrition and pneumonia.
- Dry mouth — usually from drugs.
- Denture stomatitis — remove at night, clean, antifungal.
- A sore not healed within 2–3 weeks — biopsy.
- MRONJ — exposed bone for more than 8 weeks; dental check before treatment.
Summary table
| Condition | Clues | Treatment |
|---|---|---|
| Dry mouth | Anticholinergic drugs, Sjögren syndrome, radiotherapy | Reduce drugs, saliva substitutes, fluoride; pilocarpine in Sjögren |
| Root caries and gum disease | Receding gums, bleeding, loose teeth | Hygiene, fluoride, dental treatment |
| Denture stomatitis | Redness under the denture, cracks at the mouth corners | Remove the denture at night, clean it, antifungal treatment |
| Premalignant lesions and cancer | A white or red patch, a non-healing sore | Biopsy if not healed within 2–3 weeks |
| MRONJ | Exposed bone for more than 8 weeks, bisphosphonate or denosumab | Dental check before treatment; referral |
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Sources
- AAOMS position paper — Medication-related osteonecrosis of the jaw, 2022 update — Definition, risk and prevention
- Hazzard's Geriatric Medicine and Gerontology, 8th edition (2022) — Oral health in older adults
- Geriatrics Review Syllabus (American Geriatrics Society), 11th edition (2022) — Oral diseases and disorders
Sources are given for further reading; the text is written afresh and not copied from them.
Reviewed by the Examqo AI Professor · 2026-11-06. The text may contain errors; when in doubt, check the source.