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Influence of Dental Hygiene Education on Tooth-Brushing Practices among Primary School Pupils in Nigeria

Abstract

Oral health is an important component of child health and wellbeing, while poor oral hygiene among school-age children may increase the risk of dental caries, gingival disease, oral infections, pain, and other preventable oral health problems. Tooth brushing is one of the most important daily practices for maintaining good oral hygiene and preventing the accumulation of dental plaque. Dental hygiene education provides primary school pupils with age-appropriate knowledge and practical skills concerning the importance of oral hygiene, correct tooth-brushing techniques, appropriate frequency and duration of brushing, use of fluoride-containing toothpaste, toothbrush care, dietary practices, and the importance of seeking professional dental care when necessary. Tooth-brushing practices refer to pupils' routine behaviours relating to tooth brushing, including frequency, duration, technique, use of appropriate toothpaste, and consistency of daily brushing. In Nigeria, inadequate tooth-brushing practices among primary school pupils may be associated with limited oral-health knowledge, inadequate parental supervision, poor access to oral-health education, inappropriate brushing techniques, lack of oral-health resources, and misconceptions regarding dental hygiene. Effective dental hygiene education may improve pupils' knowledge and practical skills and encourage appropriate tooth-brushing practices. Against this background, this study investigates the influence of dental hygiene education on tooth-brushing practices among primary school pupils in Nigeria. The study is anchored on the Health Belief Model, Social Cognitive Theory, and the Knowledge-Attitude-Practice framework. The Health Belief Model provides a framework for understanding pupils' adoption of tooth-brushing practices through perceived susceptibility to oral diseases, perceived severity of oral health problems, perceived benefits of proper tooth brushing, perceived barriers, and cues to action. Social Cognitive Theory emphasizes the interaction between knowledge, observational learning, self-efficacy, social influences, environmental conditions, and health behaviour in shaping tooth-brushing practices. The Knowledge-Attitude-Practice framework provides a basis for examining how dental hygiene education may improve pupils' knowledge and attitudes and translate these improvements into appropriate oral hygiene practices. Collectively, these theoretical perspectives provide a suitable framework for explaining how dental hygiene education may influence tooth-brushing practices among primary school pupils in Nigeria. The study will adopt a quantitative quasi-experimental research design. Primary data will be collected from pupils in selected primary schools in Nigeria using age-appropriate structured questionnaires, dental hygiene knowledge assessments, and standardized tooth-brushing practice checklists. Because the participants are children, appropriate parental or guardian consent and pupil assent will be obtained in accordance with ethical requirements. A multistage sampling technique will be employed to select states, local government areas, schools, classes, and eligible pupils. Where feasible, selected schools or pupil groups will be assigned to intervention and comparison groups. Pupils in the intervention group will receive structured, age-appropriate dental hygiene education through classroom teaching, demonstrations, illustrations, supervised practice, and interactive activities. The education will cover the importance of oral hygiene, correct tooth-brushing technique, frequency and duration of brushing, appropriate use of fluoride toothpaste, toothbrush care, dietary practices, and recognition of situations requiring professional dental attention. Tooth-brushing practices will be assessed using indicators such as brushing frequency, brushing duration, appropriate brushing technique, use of fluoride toothpaste, consistency of daily brushing, and demonstrated brushing skills. Practical demonstrations will be used where feasible to assess pupils' actual tooth-brushing technique rather than relying solely on self-reported behaviour. Descriptive statistics will be used to summarize pupils' demographic characteristics, previous exposure to dental hygiene education, oral-health knowledge, and tooth-brushing practice scores. Inferential statistical techniques, including chi-square tests, paired-sample tests, independent-sample tests, and multiple regression analysis, will be used to determine the influence of dental hygiene education on tooth-brushing practices. Where appropriate, tooth-brushing practices before and after the intervention will be compared. Diagnostic tests will also be conducted to assess the reliability of the research instruments, model assumptions, goodness of fit, and robustness of the findings. The study is expected to find that dental hygiene education has a significant positive influence on tooth-brushing practices among primary school pupils in Nigeria. Pupils exposed to structured dental hygiene education are expected to demonstrate improved knowledge of oral hygiene and better practical tooth-brushing skills. Education is expected to improve brushing frequency, duration, technique, appropriate use of fluoride toothpaste, and consistency of daily tooth brushing. Demonstrations and supervised practice are expected to be particularly effective in helping pupils translate oral-health knowledge into appropriate behaviour. Involvement of parents, caregivers, and teachers may further reinforce appropriate tooth-brushing routines at home and at school. However, education alone may not guarantee sustained behavioural change because pupils may continue to face challenges such as inadequate parental supervision, irregular access to toothbrushes and fluoride toothpaste, poor water availability, competing household priorities, and limited school-based oral-health programmes. Consequently, dental hygiene education may be most effective when supported by parental involvement, school-based oral-health promotion, access to appropriate oral-hygiene materials, teacher reinforcement, and periodic follow-up education. The study is expected to contribute to the literature on dental hygiene education, tooth-brushing practices, childhood oral health, school health, health education, preventive dentistry, health promotion, and public health in Nigeria by providing empirical evidence on the influence of dental hygiene education on tooth-brushing practices among primary school pupils. The findings will provide useful information to the Federal Ministry of Health and Social Welfare, Federal Ministry of Education, state ministries of health and education, primary schools, school health programmes, dental professionals, public health practitioners, health educators, parents and caregivers, development partners, and policymakers regarding strategies for improving oral hygiene among school-age children. The study will also provide evidence-based recommendations for integrating dental hygiene education into school health programmes, strengthening supervised tooth-brushing initiatives, improving access to appropriate oral-hygiene materials, increasing parental awareness, training teachers to reinforce good oral-health practices, and promoting sustainable tooth-brushing behaviours among primary school pupils in Nigeria.

Keywords: Dental hygiene education, tooth-brushing practices, primary school pupils, Nigeria, oral health, dental hygiene, oral hygiene practices, school health, preventive dentistry, fluoride toothpaste, child health, health education, health promotion, public health.