Objective To observe the value of transvaginal two-dimensional ultrasonography(2D-TVS)combined with three-dimensional ultrasonography OmniView for diagnosing intrauterine adhesion(IUA).Methods Totally 200 women with suspected IUA were retrospectively enrolled,including 172 cases who were ultimately diagnosed IUA and the rest 28 without IUA.The efficacy of 2D-TVS combined with OmniView for diagnosing IUA was analyzed.Results Among 200 cases,150 cases were diagnosed IUA with 2D-TVS(135 cases were diagnosed correctly),167 cases were diagnosed IUA with OmniView(159 cases were diagnosed correctly),and 170 cases were diagnosed with combination of the above two(165 cases were diagnosed correctly).The area under the curve(AUC)of 2D-TVS,OmniView and 2D-TVS combined with OmniView for diagnosing IUA was 0.625,0.819 and 0.890,respectively,and 2D-TVS combined with OmniView had the highest AUC(both P＜0.05),with sensitivity of 95.93％,specificity of 82.14％,positive predictive value of 97.06％and negative predictive value of 76.67％.Conclusion 2D-TVS combined with OmniView could be helpful for diagnosing IUA.

Objective To observe the value of transvaginal two-dimensional ultrasonography(2D-TVS)combined with three-dimensional ultrasonography OmniView for diagnosing intrauterine adhesion(IUA).Methods Totally 200 women with suspected IUA were retrospectively enrolled,including 172 cases who were ultimately diagnosed IUA and the rest 28 without IUA.The efficacy of 2D-TVS combined with OmniView for diagnosing IUA was analyzed.Results Among 200 cases,150 cases were diagnosed IUA with 2D-TVS(135 cases were diagnosed correctly),167 cases were diagnosed IUA with OmniView(159 cases were diagnosed correctly),and 170 cases were diagnosed with combination of the above two(165 cases were diagnosed correctly).The area under the curve(AUC)of 2D-TVS,OmniView and 2D-TVS combined with OmniView for diagnosing IUA was 0.625,0.819 and 0.890,respectively,and 2D-TVS combined with OmniView had the highest AUC(both P＜0.05),with sensitivity of 95.93％,specificity of 82.14％,positive predictive value of 97.06％and negative predictive value of 76.67％.Conclusion 2D-TVS combined with OmniView could be helpful for diagnosing IUA.

Objective:To analyze the factors related to spontaneous re-eruption after intruded injury in permanent anterior teeth in children and adolescents.Methods:Clinical data from 5-to 17-year-old pa-tients who sustained intrusive luxation of permanent anterior teeth and treated in the Department of Pedia-tric Dentistry of Peking University School and Hospital of Stomatology from June 2015 to August 2024 were reviewed.Information of age,gender,degree of intrusion,direction of intrusion,tooth develop-ment,concomitant injuries,luxation and post-osteoclastic eruption of the adjacent teeth were recorded.The patients were divided into two groups based on whether they showed spontaneous re-eruption during advised observation after intrusion.Univariate and multifactor analysis were performed using Logistic re-gression.Results:Data from 170 teeth in 139 patients whose age ranging from 5.3-16.3 years[mean age(9.0±2.1)years]were examined.A gender disparity was observed among the patients,with 84 be-ing male and 55 being female.Among the 170 teeth,112 were categorized as successfully spontaneous re-eruption during advised observation after intrusion,while 58 were not.In terms of the degree of intru-sion,45 teeth(26.47％)had intrusion less than 3 mm,102 teeth(60.00％)experienced intrusion be-tween 3-7 mm,and 23 teeth(13.53％)were faced with intrusion exceeding 7 mm.As for the direction of intrusion,117 teeth(68.82％)were straight intrusion while mesial-distal and buccal-lingual intrusion respectively accounting for 17(10.00％)and 23(13.53％).Multivariate Logistic regression analysis showed that mesial-distal intrusion(OR=0.167,95％CI:0.031-0.9048,P=0.038),intrusion of＞7 mm(OR=0.065,95％CI:0.014-0.299,P＜0.001)and luxation of adjacent teeth(OR=0.369,95％CI:0.144-0.944,P=0.037)were independent risk factors for spontaneous re-eruption of trau-matically intruded permanent anterior teeth in children and adolescents during advised observation after intrusion,while intrusion of＜3 mm(OR=9.860,95％CI:2.430-40.009,P=0.001)and post-osteoclastic eruption of adjacent teeth(OR=4.712,95％CI:1.528-14.531,P=0.007)were inde-pendent protective factors.The possibility of spontaneous re-eruption in permanent anterior teeth during advised observation after intrusion was decreased by 61.1％with the increase of root development using Cvek's classification(OR=0.611,95％CI:0.408-0.914,P=0.017).Age(OR=1.077,95％CI:0.763-1.521,P=0.673)and laceration of gingival(OR=0.865,95％CI:0.290-2.578,P=0.794)didn't significantly affect the spontaneous re-eruption during advised observation after intrusion.Conclusion:In this study,mesial-distal intrusion,intrusion of＞7 mm and luxation of adjacent teeth were independent risk factors for spontaneous re-eruption of traumatically intruded permanent anterior teeth in children and adolescents during advised observation,while intrusion of＜3 mm and post-osteoclastic eruption of adjacent teeth were served as independent protective factors.

Objective To investigate the epidemiological characteristics and clinic symptoms of an outbreak of infectious diarrhea caused by Sapovirus,in CT community,Zhaoqing,Guangdong province.Methods Retrospective study of field epidemiology investigation was carried out and Chi-square test was used enteroviruses were detected by RT-PCR in swab,fecal specimens and water samples.Results A total of 422 cases were identified in this outbreak,with the prevalence as 11.95％.Cases mainly concentrated between 21 and 24,December,with curves noticed by pointsource and peaked on the 22nd.Symptoms mainly appeared as vomiting,with watery stool.Patients were founded in every village,with the highest prevalence appeared in the elderly (25.20％) but involved in every age group.Sapovirus infection was most frequently seen in the population under 25 years of age,with overall prevalence as 16.41％.People older than 50 years of age took the second place (12.05％),and the lowest was seen between 25 to 49 years age group (8.42％).Sapovirus was detected in both swab and fecal specimens,with the positive rate as 38.78％.Both general and heatresistant coliformed-bacteria were detected in the 24 monitored water samples,with the qualification rates as 95.83％,45.83％ and 50.00％,respectively.However,Sapovirus was not detected in any of the water samples.Conclusions Our findings confirmed that an outbreak,caused by sapovirus infection in CT community was most likely related to the central water supply.The surveillance system for infectious diarrheal diseases should be improved and both public health awareness and surveillance programs on drinking water should be strengthened.