Quantitative study on high-touch surface in oral diagnosis and treatment procedures / 中国感染控制杂志

Objective To clarify the high-touch surface in oral diagnosis and treatment procedures,provide basis and guidance for cleaning and disinfection.Methods The direct observation method was used to investigate the tou-ch time and frequency of environmental surfaces in 7 outpatient departments of a tertiary stomatology hospitals in Beijing.The average touch frequency,95％confidence interval and cumulative touch rate were calculated.Results In oral diagnosis and treatment procedures,the average touch frequency of the environmental surface was 26.75 times per procedure,with the highest in endodontics(46.25 times per procedure)and the lowest in the oral mucosal specialty(10.19 times per procedure).The high-touch surface consisted of the shadowless lamp handle,manipula-tion panel and handle on dental unit(doctor's side),computer keyboard and mouse,handle and line front end of three way syringe,as well as dental high speed handpiece and line front end,with average touch frequencies of 3.99,3.85,2.65,1.86,and 1.40 times per procedure.The high-touch surface in all stomatology specialties in-cluded the manipulation panel and handle on dental unit(doctor's side),75％of specialties included computer key-board and mouse,and the shadowless lamp handle has the highest touch frequency in 50％of specialties.The ave-rage touch frequency of the environmental surface was highest(113.50 times per procedure)during crown prepara-tion procedure,and the lowest(8.50 times per procedure)during the orthodontic consultations.Conclusion The high-touch surface of different dental specialties and different diagnosis and treatment procedures are different.Me-dical institutions should take corresponding cleaning,disinfection and management measures according to the actual situation of high-touch surface in stomatology departments,so as to effectively improve the quality of environmental cleaning and disinfection.

Prevalence of dental erosion and associated drinks in 12-year-old population of Beijing / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the prevalence of dental erosion and associated drinks in 12-year-old adolescence of Beijing.</p><p><b>METHODS</b>A random sample of 12-year-old adolescence of Beijing (n=844) was examined for dental erosion and required to fill a questionnaire of acidic drink intake. The grade criteria suitable for the survey of the dental erosion was used in the study.</p><p><b>RESULTS</b>The prevalence of dental erosion was 61.8%, of which mild enamel was 74.1%, severe enamel erosion 24.9% and dentine erosion 1.0%. Statistic analysis showed that a large amount of intake of carbonated drink or juice were risk factors.</p><p><b>CONCLUSIONS</b>Attention should be paid to the prevalence of dental erosion among Chinese adolescence.</p>