Abstract
Periodontal disease is a common and serious oral disease among older adults. As the global older population increases, preventing periodontal disease is vital for healthy ageing. Poor oral hygiene, uncontrolled diabetes, and smoking are key risk factors of periodontal disease. Improving oral hygiene, diabetes management, and quitting smoking are essential health behavioural change interventions to manage periodontal disease. The objective of this study is to review the prevention of periodontal disease among older adults through health behavioural change interventions. Effective strategies to improve oral hygiene include personalised education on proper brushing and interdental cleaning. Educating caregivers is equally important as they supervise care-dependent older adults to maintain oral health. For those with diabetes, physical activity improves glycated haemoglobin levels and clinical periodontal parameters by reducing reactive oxygen species and systemic inflammation. Smoking cessation could be achieved through a multi-faceted approach. Effective smoking cessation combines brief interventions with intensive behavioural/pharmacological support for long-term success, especially in highly dependent individuals. Tailored strategies for older adults, integrated care, and expanded research improve outcomes and health equity in ageing populations. In conclusion, health behavioural change interventions are non-invasive preventive measures that include oral hygiene reinforcement, diabetic management, and smoking cessation. Prioritising these interventions empowers older adults to maintain oral health, reducing disease burden and enhancing overall well-being for healthy ageing.