替牙期儿童龋齿与饮食及口腔卫生习惯关系分析

目的：研究替牙期乳恒牙的龋坏情况和饮食习惯、口腔卫生习惯的关系。方法选择盐城市亭湖区某小学8～11岁学生212名进行口腔龋齿检查和学生甜食摄入习惯、口腔卫生保健习惯问卷调查。分析儿童龋齿指数与饮食习惯、口腔卫生习惯的关系。结果212名学生乳牙龋失补牙面数（dmft）为（6．21±0．52）颗，恒牙龋失补牙面数（DMFT）为（2．21±0．27）颗。进食糖果、巧克力、含糖软饮料、冷饮、水果的学生乳牙dmft分别为（5．98±0．62），（6．12±0．68），（5．64±0．57），（6．78±0．71），（4．68±0．51）颗，差异有统计学意义（F＝154．71，P＜0．05）；恒牙DMFT比较差异有统计学意义（F＝314．99，P＜0．05）；进行甜食频率高的学生乳牙dmft、恒牙DMFT高于进食水果和进食频率低的学生，差异均有统计学意义（F值分别为37．62，125．15；P＜0．05）。每日刷牙3次和进食甜食后刷牙的学生的乳牙dmft、恒牙DMFT均低于刷牙次数少、漱口或者无口腔保健措施的学生，差异均有统计学意义（ P＜0．05）。结论饮食中甜食摄入量和频率、口腔卫生习惯均与替牙期儿童龋齿的发生有一定的影响。

Relationship of dental caries,eating habits and oral hygiene during mixed dentition

Objective To study the relationship of dental caries , eating habits and oral health habits during the mixed dentition .Methods 212 children aged between 8 to 11 years old were selected to do the same examination of dental caries .The questionnaire surveyed their parent , including basic information , sweets intake habits, oral hygiene habits.The relationship of 212 children with dental caries and the results of the investigation were analyzed .Results The primary teeth decay missing filling surface （ DMFT） and permanent teeth DMFT of the study cases were （6.21 ±0.52） and （2.21 ±0.27）.The DMFT of children who took candy, chocolate, sweet drinks, ice-cream and fruit were （5.98 ±0.62）, （6.12 ±0.68）, （5.64 ±0.57）, （6.78 ±0.71） and （4.68 ±0.51）, respectively.And there were significant differences （F=154.71, P〈0.05）.The DMFT of permanent teeth was statistically significant （F=314.99, P〈0.05）.The primary teeth and permanent teeth DMFT of the children eating sweets with high frequency were significantly higher than those eating sweets with low frequency , and the difference were statistically significant （ F =37.62, 125.15, respectively;P〈0.05）.The primary teeth and permanent teeth DMFT of the children brushed teeth 3 times a day and those brushed teeth after eating dessert were significantly lower than those took no measures of oral protection.The difference was statistically significant （P〈0.05）.Conclusions The intake and frequency of sweets, and oral hygiene habits have a certain influence on the occurrence of children ’s dental caries during the mixed dentition .