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Background: Dental anomalies are craniofacial abnormalities in the size, structure or number of the teeth. This study was conducted to assess the prevalence of dental anomalies among children aged 0-16 years attending the Paediatric Dental Clinic at the Lagos University Teaching Hospital, Lagos, Nigeria. Methods: A cross-sectional design was used and data were obtained from the dental records of the Dental Clinic from January 2014 to August 2019 by two calibrated examiners, who are co-authors of the manuscript. To test for statistical differences, Chi-squared test was utilised for the categorical variables. The prevalence of the different dental anomalies was estimated and presented with frequencies. P < 0.05 was considered statistically significant. Results: Among the 6175 patients' dental records reviewed, 50.85% (n = 3150) were male and the highest proportion of 45.4% (n = 2807) were aged between 6 and 10 years, with a mean age of 8.62 ± 3.85 years. A total of 1090 (17.52%) had dental anomalies; 465 (7.53) anomalies were in the maxilla, 263 (4.6) were in the mandible while 360 (5.83) were in both. The most common anomaly was hypoplasia 550 (9.06%), followed by retained primary tooth 546 (8.84%) and hypodontia 84 (1.36%). Dentinogenesis imperfecta 1 (0.02) and transposition 1 (0.02) were the least prevalent anomalies. Retained primary teeth (5.8%) and the cusp of Carabelli (0.4%) were slightly more prevalent among males. However, females had a higher prevalence of natal/neonatal teeth (0.4%), fusion/germination (0.4%), hypodontia (1.5%) and peg-shaped lateral incisors (0.9%). Conclusion: Dental anomalies' prevalence in this study was 17.52%, with a higher occurrence of anomalies in the maxilla. Hypoplasia was the most prevalent anomaly, after which was retained primary tooth, then hypodontia. Prompt diagnosis and preventive interventions are crucial for the appropriate management of these dental anomalies. [ABSTRACT FROM AUTHOR]

Objective: The objective of this study was to assess the impact of an interdisciplinary educational intervention on the knowledge of nursing practitioners regarding perinatal and infant oral health (PIOH) care., Materials and Methods: This was a preexperimental study conducted among nursing practitioners in Lagos, Nigeria. Participants received hands-on training and didactic lectures, which included dental caries etiology and risk factors; oral hygiene and dietary education; teething and its management; dental trauma and its prevention; nonnutritive habits; screening, referrals, and counseling; and fluoride varnish application. Knowledge of the trainees was assessed using pre- and posttest questionnaires. Level of statistical significance was set at P < 0.05., Results: Overall, 110 nurses participated in the study with a mean age of 40.9 ± 10.8 years; 106 (96.4%) were females. Approximately 88% of the participants had not received formal training on PIOH. The baseline mean scores of the participants' knowledge on oral hygiene, teething, trauma, caries, and oral habits were 4.31 ± 1.9, 9.84 ± 2.6, 2.59 ± 1.7, 4.24 ± 1.8, and 1.45 ± 0.6, respectively; this increased significantly ( P < 0.001) following the educational intervention with posttest mean scores as 7.58 ± 0.8, 11.79 ± 1.3, 4.34 ± 1.9, 6.19 ± 1.8, and 1.82 ± 0.4 and six-month evaluation scores as 6.21 ± 1.8,7 10.27 ± 3.1, 4.39 ± 1.5, 5.91 ± 1.8, and 1.79 ± 0.5, respectively. Overall posttest (31.4 ± 4.2) and six-month (28.6 ± 6.2) knowledge scores were significantly higher than the pretest values (22.4 ± 4.8, P < 0.001). At the six-month post-intervention survey, 84% of the nurses reported inclusion of PIOH education in their routine general health education sessions., Conclusion: There was a positive impact of the educational intervention as evidenced by an increase in the knowledge of the nurses on PIOH care and the inclusion of PIOH education in their general health education. A slight decline between posttest and six-month evaluation scores indicates a need for continuous education and evaluation., Competing Interests: There are no conflicts of interest., (Copyright: © 2019 Journal of International Society of Preventive and Community Dentistry.)