Objective To investigate the situation of oral health behavioral habits formation and knowledge awareness in Shap‐ingba district of Chongqing city so as to provide the scientific basis for carrying out the national project of“oral health ,happy fami‐ly” .Methods According to the unified questionnaire and informed consent ,using the stratified cluster sampling method ,the base line situation of oral health basic situation in Shapingba district of Chongqing city was investigated and performed the statistical a‐nalysis .Results Totally 630 valid questionnaires were issued in February 2015 and 622 effective questionnaires were taken back . The oral health behavior formation situation:the proportion of tooth brushing at least once daily reached 92 .00% ,nearly 50 .0% of residents used the fluoride toothpaste;the proportion of juveniles eating sweets and drinking carbonated beverages was higher (48 .3% ,43 .3% );only a few respondents (18 .6% ) conducted the oral examination every year .The awareness situation of oral health behavioral knowledge:71 .8% of respondents thought that“correct oral hygiene behavior” was a healthy way of life .56 .0%of respondents knew the oral health standards .But the correct rate of the other 6 knowledge points was only 17 .0% -32 .4% . Conclusion The oral health behavioral habits formation in the residents of Shapingba district has some defects and the awareness level of oral health behavioral knowledge is on the low side ,therefore the propaganda work of oral health care knowledge aiming at caries and periodontal disease prevention should be strengthened for effectively controlling the risk factors of oral health .%目的：了解重庆市沙坪坝区居民口腔健康行为习惯养成和知识知晓情况，为《健康口腔、幸福家庭》这一国家项目的开展提供科学依据。方法采用国家统一制定的调查问卷和知情同意书，根据城乡分层整群抽样方法，对重庆市沙坪坝区口腔健康的基线情况进行调查和统计分析。结果于2015年2月发放调查问卷630份，收回有效调查问卷622份。口腔健康行为习惯养成情况为：每天至少刷牙1次的比例达到92．0％，近50．0％的居民使用含氟牙膏；青少年吃甜食（48．3％）和喝碳酸饮料（43．3％）所占比例较高；每年仅有少部分人（18．6％）进行过口腔检查。口腔健康行为知识的知晓情况为：71．8％认为“正确的口腔卫生行为”属于健康的生活方式；56．0％知晓口腔健康的标准；其他6个知识点正确率仅在17．0％～32．4％。结论重庆市沙坪坝区居民口腔健康行为习惯养成有所欠缺，口腔健康行为知识的知晓水平偏低，应针对龋病和牙周病的预防，加大口腔卫生保健知识的宣传力度，有效控制口腔健康危险因素。
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