Dental Hygiene and Oral Health Promotion
Prevention as the core skill
Dental hygiene practice centres on controlling plaque biofilm and modifying risk. Candidates must know the evidence base for mechanical plaque control, fluoride, and dietary counselling, and must be able to tailor advice to the patient's age, dexterity, motivation, and social context.
Fluoride and remineralisation
Understand topical fluoride vehicles (toothpaste, varnish, gels, mouthrinses), concentration and frequency, and the balance between remineralisation and fluorosis risk in young children. A frequent trap is recommending a high-fluoride product or rinse to a child without considering swallowing and age-appropriate toothpaste strength. Another is assuming fluoride compensates for poor plaque control.
Behaviour change, not lecturing
Motivational interviewing and brief advice outperform instruction-giving. Questions often present a non-compliant patient and ask for the best response; the answer usually explores the patient's own reasons and barriers rather than repeating instructions louder.
Oral health promotion at population level
Distinguish clinical prevention from health promotion: policy, water fluoridation, sugar taxation, school programmes, and oral health literacy. Understand the common risk factor approach linking oral and systemic health, and the social determinants of health including income, education, and access.
Worked rule of thumb
Match the intervention to the risk and the person: high caries risk plus poor dexterity means supervised brushing, higher-frequency professional support, and simplified aids, not just a pamphlet.
Special groups
Pregnancy, disability, aged care, and culturally diverse communities require adapted communication and access planning.