Programme guidelines for promoting good oral health for children in Nigeria: a position paper

Prevalence of dental caries and relation with nutritional status among school-age children in resource limited setting of southern Ethiopia

BACKGROUND

Globally, dental caries appears a major public health problem and a widespread non -communicable disease. It is more prevalent among children school-age children (6-12 years), However, there are few studies that correlate dental caries with nutritional status. Thus, this study aims to determine the relation of dental caries with nutritional status among school-age children at resource limited setting of southern Ethiopia.

METHODOLOGY

A community-based cross sectional study was employed on randomly selected 761 school-age children of Areka town. Data were collected by face-to-face interviewer-administered questionnaire and clinical assessment of dental caries. After that, the collected data were entered into Epi data 3.2.1 and exported to SPSS 20 for further analysis. On the other hand, bivariate and multiple logistic regression analyses were used to identify the association of dependent and independent variables. p Value < 0.05 was considered to declare a result as statistically significant.

RESULTS

Prevalence of dental caries among school-age children was 15.6%  (95% CI 13.0-18.5). In technical senses, 4.3% (95% CI 2.9-5.8%) of children were underweight and 14.2% (95% CI 11.7-16.6%) were overweight. However, it has been unfolded that the relationship between dental caries and nutritional status was not statistically significant with a p value (p = 0.32). Factors associated with dental caries were educational status of a mother AOR 3.14, (95% CI 1.03-9.56), not cleaning teeth AOR 7.70, (95% CI 4.00-14.85), sugared coffee drinking AOR 3.22, (95% CI 1.68-6.18.0), sweet food consumption AOR 4.19, (95% CI 1.76-9.96) and non-consuming milk AOR 5.66 ( 95% CI 1.49-21.49).

CONCLUSION AND RECOMMENDATION

Dental caries at south Ethiopia were low compared to WHO's reports on oral health on school-age children. Tooth cleaning habit, parental education, sweet food consumption and milk consumption are associated factors. Therefore, behavioral intervention on dental hygiene and dietary practices are mandatory for school-age children.

Is chronotype profile a risk indicator for caries in children and adolescents in sub-urban Nigeria?

OBJECTIVES

To determine the association between chronotype and the prevalence of caries among in-school pupils aged 6- to 16-year-old residing in a sub-urban area in Nigeria. We hypothesize that in-school pupils who are evening chronotypes will have significantly higher prevalence of caries than those who are intermediate or morning chronotypes.

METHODS

This secondary analysis of a dataset collected in 2019 from 1502 children aged 6- to 16-year-old attending private and public primary and secondary schools in Ife Central Local Government Area, Nigeria. The dependent variable was caries prevalence. The explanatory variable was participants' chronotype profile (morning, intermediate, and evening). The confounding variables were caries risk factors (socio-economic status, age at last birthday, sex, use of fluoridated toothpaste, frequency of consumption of refined carbohydrates, and oral hygiene status). Poisson regression analysis was conducted.

RESULTS

Data of 1001 (66.6%) students were retrieved. Of these, 59 (5.9%) had caries, 42 (4.2%) were evening type, 526 (52.5%) were intermediate type, and 433 (43.3%) were morning type. There was no significant association between chronotype and the prevalence of caries though children who were intermediate type (APR = 0.83; 95%CI: 0.41-1.66) and morning type (APR = 0.57; 95% CI: 0.27-1.18) were less likely to have caries than were those who were evening type.

CONCLUSION

The children and adolescents' chronotype was not a significant risk indicator for caries in the study population.

Use of teachers as agents of oral health education: Intervention study among public secondary school pupils in Lagos

Background:

Common oral diseases are preventable and if detected early are reversible and schools provide a setting in which the oral health behavior of pupils can be influenced. We aimed to assess the effectiveness of using teachers in place of oral health professionals to deliver oral health education (OHE) in public secondary schools in Lagos State.

Methods:

This quasi-experimental study was conducted in four phases from September 2016-April 2017. A multistage sampling method was adopted to enlist the research participants from four enlisted schools, which were randomly assigned into two groups. Trained dentists delivered OHE in the first group of schools while trained teachers did in the second group and the impact of the intervention was assessed over six months. P values for significant differences were set at 0.05.

Results:

At the 3 months evaluation, the mean oral health knowledge (OHK) scores were higher among pupils in the Teachers Intervention Schools (TIS) (71.3 ± 19.3) than that in the Dentist Intervention Schools (DIS) (61.3 ± 17.7) (P = 0.023). Subsequent evaluation sessions from baseline revealed a gradual increase in the proportion of pupils with positive oral health attitude scores; with a higher proportion of pupils in the DIS (34.5%) compared to the TIS (34.0%) at 6 months assessment time. At 6 months evaluation, the proportion of pupils with poor oral health practices decreased in both groups of schools (P = 0.104).

Conclusion:

The proportion of pupils with good OHK was higher in the TIS at post-intervention periods; this difference was statistically significant at 3 months. This result suggests that teachers are as effective as dentists in delivering OHE.

Prevention of Dental Caries in Nigeria: A Narrative Review of Strategies and Recommendations from 1999 to 2019

OBJECTIVES

This narrative review aimed to show the approaches recommended for the prevention of dental caries in Nigeria by epidemiological surveys (P), primary preventive methods and strategies,( I) comparison preferred by experts (C) in the prevention of dental caries (O).

METHODS

An electronic literature search of some databases such as Pubmed, Pubmed Central, Google Scholar, African Journal Online (AJOL) and Medline was conducted using these keywords delimited by Boolean operators AND, OR and NOT: "dental caries" "prevention" "Nigeria. Epidemiological studies using WHO criteria published in English between 1999 and 2019 were included in this study.

RESULTS

All studies that met the inclusion criteria were epidemiological cross-sectional studies, non-clinic -based. The approaches recommended include need for continuous caries surveillance, preventive and restorative programmes, primary prevention, use fluorides, oral health education and atraumatic restorative treatment.

CONCLUSIONS

The recommended approaches should include continuous caries monitoring, comprehensive preventive and restorative programmes, primary prevention, use fluorides, oral health education and atraumatic restorative treatments in public schools and primary health care (PHC) centres. It is necessary to augment these approaches with undergraduate cariology curriculum review of dental schools, public-private partnership and oral health policy implementation with emphasis on prevention.

Making a Case for Formal School-Based Oral Health Promotion: Oral Health Knowledge, Attitude and Practices of Pupils in Ibadan, Nigeria

Background Providing evidence for institution of school-based oral health promotion programs is paramount in developing countries, due to increasing unmet dental needs impacting on quality of life of children. Aim To evaluate oral health knowledge, attitude and practices (KAP) of pupils in a country lacking formal school oral health promotion. Methods A cross-sectional study was conducted among 1,297 pupils in randomly selected primary schools in one city. Information on oral health KAP were obtained using interviewer-administered questionnaire. Responses to questions were graded, standardized, and data analyzed using SPSS. Results The mean age was 10.6 (±1.7) years. Mean KAP percentage scores were 18.1 (±5.0)%, 18.3 (±4.9)%, and 17.3 (±12.8)%, respectively. Older age, male gender, and previous dental consultations were significantly associated with higher KAP scores. Those who had been educated informally about oral health had higher mean KAP scores ( p = .013, p < .001, and p < .001, respectively). Previous oral health education and consultation with dentists were significant predictors of higher oral health practice scores. Conclusion Poor oral health KAP exists among the pupils. Those who had consulted the dentist or had oral health education had better KAP. These findings reinforce the need for formal school-based oral health promotion.

Prevalence of developmental dental hard-tissue anomalies and association with caries and oral hygiene status of children in Southwestern, Nigeria

BACKGROUND

Developmental dental hard tissue anomalies are often associated with oral health problems. This study determined the clinical prevalence of developmental dental hard tissue anomalies in the permanent dentition of children resident in southwestern Nigeria and its association with dental caries and poor oral hygiene status.

METHODS

This was a cross-sectional study recruiting 1565 school children, 12 to 15 year old attending schools in Ibadan, Oyo State and Ile-Ife, Osun State. All eligible study participants had oral examinations conducted to determine presence of developmental hard dental tissue anomalies, caries and oral hygiene status. The prevalence of developmental dental hard tissue anomalies was determined. Logistic Poisson regression was used to determine the association of between developmental dental hard tissue anomalies, caries and oral hygiene status.

RESULTS

Only 65 (4.2 %) children had clinically diagnosed developmental dental hard tissue anomalies. The most prevalent anomaly was enamel hypoplasia (2.2 %). More females (p = 0.003) and more children with middle socioeconomic class (p = 0.001) had enamel hypoplasia. The probability of having poor oral hygiene was significantly increased for children with developmental dental anomalies (APR: 0.07; 95 % CI: 0.03 - 0.12; p = 0.002). The probability of having caries was insignificantly increased for children with developmental dental hard tissue anomalies (APR: 0.005; 95 % CI: -0.03 - 0.04; p = 0.08).

CONCLUSION

The most prevalence clinically detectable developmental dental hard tissue anomalies for the study population was enamel hypoplasia. The presence of developmental dental hard tissue anomalies significantly increased the chances of having poor oral hygiene but not caries. Further studies are required to understand if poor oral hygiene is associated with dental caries in children with developmental dental hard tissue anomalies.

DENTAL CARIES AND NUTRITIONAL STATUS OF SCHOOL CHILDREN IN LAGOS, NIGERIA - A PRELIMINARY SURVEY

BACKGROUND

Studies have highlighted the direct impact of caries on the nutritional status of children; few studies in Nigeria have examined the association between the two parameters.

AIM

To determine the association between caries and the nutritional status of in-school children. Design of the study: A cross-sectional survey.

SETTING

Two private and two public schools in Lagos state.

METHODOLOGY

A total of 973 children were assessed for dental caries using the WHO diagnostic criteria. Nutritional status was assessed using the weight for age, height for age and weight for height parameters. Data entry and analysis were done using WHO Epi 3.5 nutritstat and SPSS version 20.0 software. The t test, ANOVA, chi squared test, correlation statistics and logistic regression analysis were used as tests of association. A p-value of 0.05 or less was considered statistically significant.

RESULTS

Caries prevalence was 21.7% while mean Decayed Missing and Filled Teeth (DMFT) index score was 0.48 (±1.135). Overall 13.9% of the children studied were stunted, 13.6% were wasted and 10.9% were underweight. The caries prevalence was significantly higher in children with normal weight than in overweight or underweight children (p=0.009). Children who were wasted (p=0.111) and those who were underweight (p=0.659) had a higher mean DMFT score, but the relationship was not statistically significant. The DMFT score was negatively correlated with weight for age but positively correlated with height for age and weight for height. The relationships were also not statistically significant.

CONCLUSION

Our results showed that underweight children had a higher risk of developing dental caries. Although both under weight and wasted children had higher mean DMFT scores, there was no significant association between dental caries and nutritional status.

Use of caries prevention tools and associated caries risk in a suburban population of children in Nigeria

AIMS

To determine the association between use of recommended oral self-care (ROSC) caries prevention tools and presence of dental caries in children resident in suburban Nigeria.

METHODOLOGY

Secondary analysis was conducted for a dataset generated for 1-12 years old children recruited through a household survey. Information on use of ROSC caries prevention tools (brushing more than once a day, use of fluoridated toothpaste always, and eating sugary snacks between main meals less than once a day), use of oral health adjuncts (dental floss, mouth rinses, other tooth cleansing agents) and presence of caries were extracted. The odds of having caries when ROSC caries prevention tools were used singly or in combination, were determined using multivariate logistic regression adjusted for age and sex.

RESULTS

The single or combined use of ROSC caries prevention tools had no statistically significant association with presence of caries. Brushing more than once a day reduced the odds of having caries while consumption of sugar between meals once a day or more increased the odds of having caries after adjusting for age and gender. The use of two ROSC caries prevention tools reduced the risk for caries (AOR 0.28; 95 % CI 0.05-1.53) when adjusted for age. The converse was observed when adjusted for gender (AOR 1.15; 95 % CI 0.38-3.45). The largest effect size was observed when sugary snacks were taken once a day or more between meals after adjusting for age (AOR 5.74; 95 % CI 0.34-96.11).

CONCLUSION

The use of a combination of fluoridated toothpaste and twice-daily tooth brushing had the largest effect on reducing the chance for caries in children resident in Ile-Ife, Nigeria.

Paediatricians' perception about oral healthcare of children in Nigeria

Background

Majority of the oral diseases in children are preventable. The paediatricians owing to the unique position they occupy in child care are invaluable in achieving standard oral and dental healthcare in children. This study was aimed at assessing the paediatricians’ views on basic oral healthcare in children in Nigeria.

Methods

This was a cross sectional descriptive study. Respondents were paediatricians attending the 2015 Annual General Meeting and Scientific Conference of the Paediatric Association of Nigeria. Relevant information sought from the respondents included: socio- demographic characteristics, duration and location of practice; specific questions on knowledge of basic oral health care in children and recommendations for improvement in knowledge of oral and dental health among paediatricians based on standard clinical guidelines. Data was analyzed using the SPSS version 20.0 and presented in simple frequencies and percentages. Test of associations was done using chi- square while logistic regression analysis was used to determine significantly associated variables (p < 0.05).

Results

A total of 121 paediatricians were recruited. 108 (89.3 %) reported that children should be referred to dental health care when caregivers/older patients report dental problems (x² = 9.377; p = 0.02). 53.7 % felt that examination of the oral cavity should be routine while 61 (50.4 %) of them reported that health education should be given to caregivers/mothers about nursing caries starting early in life. Majority of the respondents 66 (54.5 %) disapproved gum pad cleaning of young infants. 32 (26.4 %) suggested starting tooth brushing in infants as soon as a tooth appear in a child while 112 (92.6 %) recommended the disapproval of pacifiers in infants/younger children. 93 (76.9 %) were of the opinion that the paediatrician is competent in identifying and handling of basic oral health care in children. However, 108 (89.3 %) recommended that the current postgraduate curriculum in paediatrics should incorporate knowledge of basic oral health care in children.

Conclusion

Majority of the paediatricians were found to have limited knowledge about some basic oral health care in children. It is recommended that the current postgraduate training curriculum in paediatrics in our setting should incorporate knowledge of basic oral healthcare in children.

Prevalence, and early childhood caries risk indicators in preschool children in suburban Nigeria

BACKGROUND

Early Childhood Caries (ECC) is defined as the presence of caries lesion in an primary tooth in children below the age of 71 months. It is a significant public health problem with consequences for the growth and development of affected children. The objective of this study was to determine the prevalence and ECC risk indicators in a suburban population in Nigeria.

METHODS

The data of 497 children aged 6 months to 71 months who were recruited through a household survey conducted in Ile-Ife, Nigeria was analysed for prevalence of ECC and risk indicators. Information on children's ages, sex, socioeconomic status, tooth brushing habits, sugary snacks consumption, use of fluoridated toothpaste, birth rank, infant-feeding practices, breastfeeding practices, maternal age at childbirth, and maternal knowledge of oral health was obtained. Children's oral hygiene and caries status was also determined. Risk factors associated with ECC were determined using logistic regression analysis.

RESULTS

Thirty-three (6.6%) children had ECC. Four (0.8%) had severe ECC. The four risk indicators for ECC were the child's gender, mothers' knowledge of oral health, consumption of sugary snacks in between meals more than three times a day, and the child's oral hygiene status. Females (PR: -0.06; 95% CI: -0.01- -0.01; p = 0.02), and children with mothers who had good knowledge of oral health (PR: -0.06; 95% CI: -0.11--0.008; p = 0.02) were less likely to have ECC. Children who consumed sugary snacks in between meals three times a day or more (PR: 0.05; CI: 0.003 - 0.01; P = 0.04) and children with fair oral hygiene (PR: 0.05; 95% CI: 0.005-0.10; p = 0.03) were more likely to have ECC.

CONCLUSIONS

The prevalence of ECC in the study population was low. Promoting good oral hygiene practices and enhancing mothers' knowledge of oral health may help reduce further, the risk for ECC in the study population.

The prevalence and pattern of deciduous molar hypomineralization and molar-incisor hypomineralization in children from a suburban population in Nigeria

Background

Molar Incisor Hypoplasia (MIH) and Deciduous Molar Hypoplasia (DMH) have significant impact on the quality of life of affected individuals. The objective of the study was to determine the prevalence, pattern and clinical presentation of MIH and DMH in children resident in Ile-Ife, Nigeria, and their association with sex and socioeconomic status of the children.

Methods

Information on age, sex and socioeconomic status was collected from 563 children aged 3 to 5 years and 8 to 10 years using a structured questionnaire through a household survey. Clinical examination was conducted to assess for the presence of DMH and MIH. The prevalence of DMH and MIH were determined. Tests of association between sex, socioeconomic status, prevalence, and pattern of presentation of both DMH and MIH were conducted using Pearson’s Chi-squared test Fisher’s exact test.

Result

Fifteen (4.6 %) of the 327 children aged 3 to 5 years and 23 (9.7 %) of the 237 children aged 8 to 10 years had DMH and MIH respectively. There were no significant association between DMH, sex (p = 0.49) and socioeconomic status (p = 0.32). There were also no significant association between MIH, sex (p = 0.31) and socioeconomic status (p = 0.41). MIH/DMH co-morbidity was observed in eight (34.8 %) of the 23 children with MIH. The mandible and maxilla were affected equally. Antimere was not observed.

Conclusion

The prevalence of DMH and the prevalence of MIH in the study population were high. DMH and MIH were not associated with sex and socioeconomic status. There was no specific pattern identified in the presentation of DMH and MIH. The prevalence of DMH/MIH co-morbidity is also high. Patients with DMH should be screened for MIH.