Premature loss of primary first molars in children from urban and rural Peruvian educational centers
Keywords:
molar tooth, prevalence, primary toothAbstract
Introduction: Early loss of the first primary molar could cause deficiency in masticatory function and dental migration.
Objective: To determine the prevalence of premature loss of first primary molars in children aged 6 to 9 years in urban and rural schools.
Methods: A descriptive cross-sectional study was carried out. The sample consisted of 204 students, 102 from urban and 102 from rural schools. A data collection form was used that contained: odontogram, age of the children, gender, presence or absence of the first primary molar, affected tooth, dental arch and side of distribution. The data were analyzed using the chi-square distribution with a significance level of 5%.
Results: The prevalence of premature loss of the first primary molar was significantly higher in rural areas (21.1%) and in males, compared to urban areas. As for the frequency of this loss, it was higher in the rural area, especially in 9-year-old schoolchildren (31.7%), mainly affecting the right first primary molar (24.4%). The loss was more common in the lower arch (33.8%) and on both sides of the mouth (39.7%).
Conclusion: Premature loss of first primary molars was more prevalent among schoolchildren in rural areas than in urban areas.
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