Prevalence of tooth erosion of 5-year-old and 12-year-old children in Xuzhou city / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the prevalence of tooth erosion of Xuzhou city's children.</p><p><b>METHODS</b>The stratified, cluster and random sampling methods were performed. The prevalence of tooth erosion of 1,219 5-year-old children and 786 12-year-old children in Xuzhou city were examined by one qualified dentist. The results of clinical examination were recorded by schedule table. The risk factors of tooth erosion were investigated by questionnaire and analyzed by Logistic regression model.</p><p><b>RESULTS</b>In 5-year-old children group, the prevalence of tooth erosion was 10.91%. In 12-year-old children group, the prevalence of tooth erosion was 22.14%. The ranking of tooth erosion were mostly class 1 and class 2. The tooth erosions of class 3 and above were rare. The odds rations for tooth erosion were: Acidic fruits, 1.120; acidophilous milk, 1.062; sport drinks, 1.159; carbonated drinks, 1.151; fruit juice, 1.187; drinking acidic drinks or acidophilous milk before sleeping, 6.102; gastroesophageal reflux disease, 2.311; vitamin C, 1.565; supply chalybeate, 1.598.</p><p><b>CONCLUSION</b>The prevalence of tooth erosions in Xuzhou is extensive. Oral health education and drink and food guidance should be strengthened. The amount and frequency of intake of acidic food and drink should be reduced to promote oral health.</p>

Skeletal desmoplastic fibroma in right mandible: a case report / 华西口腔医学杂志

Skeletal desmoplastic fibroma is an intraosseous neoplasm that is recognized as a very scare benign tumor. It has a propensity for locally aggressive behavior and local recurrence. The aim of this article is to report a case of skeletal desmoplastic fibroma in right mandible of a 4-year-old boy. The patient was found to have a large skeletal desmoplastic fibroma in right mandible, which was resected by surgical intervention. The defect was successfully restored with a titanium plate. In the report, the etiopathogenisis, pathological, radiographic features, clinical diagnosis, therapy and prognosis of skeletal desmoplastic fibroma were diccussed.