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  • Title: Prevalence of erosive tooth wear and associated risk factors in 2-7-year-old German kindergarten children.
    Author: Wiegand A, Müller J, Werner C, Attin T.
    Journal: Oral Dis; 2006 Mar; 12(2):117-24. PubMed ID: 16476031.
    Abstract:
    OBJECTIVES: The aims of this study were to (1) investigate prevalence and severity of erosive tooth wear among kindergarten children and (2) determine the relationship between dental erosion and dietary intake, oral hygiene behaviour, systemic diseases and salivary concentration of calcium and phosphate. MATERIALS AND METHODS: A sample of 463 children (2-7 years old) from 21 kindergartens were examined under standardized conditions by a calibrated examiner. Dental erosion of primary and permanent teeth was recorded using a scoring system based on O'Sullivan Index [Eur J Paediatr Dent 2 (2000) 69]. Data on the rate and frequency of dietary intake, systemic diseases and oral hygiene behaviour were obtained from a questionnaire completed by the parents. Unstimulated saliva samples of 355 children were analysed for calcium and phosphate concentration by colorimetric assessment. Descriptive statistics and multiple regression analysis were applied to the data. RESULTS: Prevalence of erosion amounted to 32% and increased with increasing age of the children. Dentine erosion affecting at least one tooth could be observed in 13.2% of the children. The most affected teeth were the primary maxillary first and second incisors (15.5-25%) followed by the canines (10.5-12%) and molars (1-5%). Erosions on primary mandibular teeth were as follows: incisors: 1.5-3%, canines: 5.5-6% and molars: 3.5-5%. Erosions of the primary first and second molars were mostly seen on the occlusal surfaces (75.9%) involving enamel or enamel-dentine but not the pulp. In primary first and second incisors and canines, erosive lesions were often located incisally (51.2%) or affected multiple surfaces (28.9%). None of the permanent incisors (n = 93) or first molars (n=139) showed signs of erosion. Dietary factors, oral hygiene behaviour, systemic diseases and salivary calcium and phosphate concentration were not associated with the presence of erosion. CONCLUSIONS: Erosive tooth wear of primary teeth was frequently seen in primary dentition. As several children showed progressive erosion into dentine or exhibited severe erosion affecting many teeth, preventive and therapeutic measures are recommended.
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