Browsing by Author "Folayan, M O"

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    A radiographic study of the mandibular third molar root development in different ethnic groups.
    (Journal of Forensic Odonto-Stomatology, 2017-12-01T00:00:00Z) Liversidge, H M; Peariasamy, K; Folayan, M O; Adeniyi, A O; Ngom, P I; Mikami, Y; Shimada, Y; Kuroe, K; Tvete, I F; Kvaal, S I
    BACKGROUND The nature of differences in the timing of tooth formation between ethnic groups is important when estimating age. AIM To calculate age of transition of the mandibular third (M3) molar tooth stages from archived dental radiographs from sub-Saharan Africa, Malaysia, Japan and two groups from London UK (Whites and Bangladeshi). MATERIALS AND METHODS The number of radiographs was 4555 (2028 males, 2527 females) with an age range 10-25 years. The left M3 was staged into Moorrees stages. A probit model was fitted to calculate mean ages for transitions between stages for males and females and each ethnic group separately. The estimated age distributions given each M3 stage was calculated. To assess differences in timing of M3 between ethnic groups, three models were proposed: a separate model for each ethnic group, a joint model and a third model combining some aspects across groups. The best model fit was tested using Bayesian and Akaikes information criteria (BIC and AIC) and log likelihood ratio test. RESULTS Differences in mean ages of M3 root stages were found between ethnic groups, however all groups showed large standard deviation values. The AIC and log likelihood ratio test indicated that a separate model for each ethnic group was best. Small differences were also noted between timing of M3 between males and females, with the exception of the Malaysian group. These findings suggests that features of a reference data set (wide age range and uniform age distribution) and a Bayesian statistical approach are more important than population specific convenience samples to estimate age of an individual using M3. CONCLUSION Some group differences were evident in M3 timing, however, this has some impact on the confidence interval of estimated age in females and little impact in males because of the large variation in age.
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    Open Access
    Changes in the prevalence of dental caries in primary school children in Lagos State, Nigeria.
    (Original Article, 2014) Sofola, O O; Folayan, M O; Oginni, A B
    Objectives: To evaluate the changes in the prevalence of dental caries in Lagos State over a 3 years period and the role of age, sex, and playing in the changes observed. Materials and Methods: Three primary schools in Lagos State, Nigeria were randomly selected for the study. Six hundred and thirty‑three children age 2-12 years, were examined for caries in 2000 while 513 children were examined in 2003. The prevalence of tooth decay and the prevalence of untreated tooth decay were calculated for the two years, that is, 2000 and 2003. Also the degree of unmet treatment need among the population with caries experience was measured. Differences in the prevalence and severity of dental caries in the primary and permanent dentition were assessed. Results: Approximately 18% of children had untreated tooth decay in their primary dentition in 2003: A 26.1% increase from 2000. About 12.0% of the decay, extracted, and filled teeth (deft) index was seen with decayed teeth in 2000 and 16.6% in 2003. Extracted primary teeth decreased from 2.5% in 2000 to 1.5% in 2003. The change in mean deft between 2000 (0.42) and 2003 (0.47) was 11.9%. Over the study period, the overall reduction in the prevalence of dental caries was 34.8% in the permanent dentition. The decline was larger among children aged 5-9 years (62.1%) and among females (75%). Conclusion: The study showed no overall changes in caries severity but a decrease in caries prevalence in the permanent dentition over the study period. The largest decline in caries prevalence in the permanent dentition was observed in children aged 5-9 years and females. On the contrary, there was an increase in the caries prevalence in the primary dentition.
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    Orthodontic treatment need of children and adolescents with special healthcare needs resident in Ile-Ife, Nigeria.
    (Springer, 2020-06-01T00:00:00Z) Akinwonmi, B A; Kolawole, K A; Folayan, M O; Adesunloye, A M
    This study determined differences in the orthodontic treatment need of children and adolescents with and without special healthcare needs (SHCN) resident in Ile-Ife.
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    Prevalence and family structures related factors associated with crown trauma in school children resident in suburban Nigeria.
    (BMC Oral Health, 2016-11-05T00:00:00Z) Oyedele, T A; Jegede, A T; Folayan, M O
    Multiple risk factors have been identified for traumatic dental injuries, including crown fractures, in various age groups and various populations. The objective of this study was to determine the prevalence, risk factors and family related factors for crown trauma among 8 to 16 year-old children in a suburban population, Nigeria.
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    Prevalence and family structures related factors associated with crown trauma in school children resident in suburban Nigeria.
    (BioMed Central, 2016-11-05T00:00:00Z) Oyedele, T A; Jegede, A T; Folayan, M O
    Multiple risk factors have been identified for traumatic dental injuries, including crown fractures, in various age groups and various populations. The objective of this study was to determine the prevalence, risk factors, and family-related factors for crown trauma among 8 to 16-year-old children in a suburban population, in Nigeria. This is a secondary analysis of data from 2107 children collected through a school-based survey. The study participants were 8 to 16-year-old residents in suburban Nigeria. The independent variables for the study were age, sex, socioeconomic status, birth rank, family size, and parenting status (one parent, step-parent, both parents, and guardians). Details were collected using an interviewer-administered questionnaire. An intraoral examination was conducted to identify the presence of a crown fracture. The independent variables associated with and predictors of crown trauma were determined using chi-square and logistic regression analysis respectively. Only 167 (7.9 %) of the 2107 study participants had crown trauma. The prevalence of crown trauma in the teeth level was 0.33 %. Children with middle socioeconomic status had reduced odds of having crown trauma when compared with children with low socioeconomic status (AOR 0.50; CI 0.32–0.80). The odds of having crown trauma was more than doubled in males when compared with females (AOR 2.41; CI 1.72–3.39) and almost doubled in children living with single parents when compared with children living with both parents (AOR 1.94; CI 1.29–3.05). The prevalence of crown trauma was low in this study population. Being a female and having a low socioeconomic status significantly reduced the risk factors for crown trauma while living with single parents increased the risk for crown trauma.