Objective:The clinical value of used in oral cavity repair were summarized to guide clinical practice. Methods:Retrospective analysis the clinical information of 144 cases(prefabricated posts:86 cases and metal posts:58 cases) who received oral cavity repair in our hospital between January 2010 and January 2012. Discuss the applications and clinical effects. Results:After 1 to 2 ears of follow-up, into a successful repair success rate of fiber post and metal post(93.02%v.s.79.31%, P=0.015), advance into a fiber post success rate is significantly higher than metal post, Repair the cause of the failure of the two groups, however, fall off and fracture was statistically difference(x2=5.51, P<0.019), the fiber pile of biomechanics is better than metal post, loss is the main reason for the advance into the fiber pile repair failure. Conclusions:As a new material in the oral cavity repair, prefabricated posts has been widely used and is worthy of further promotion.

ObjectiveTo explore the poss ib le mechanisms of killing effects of serum from Microtus fortis to Schistosoma japonicum schisto somula in vitro. MethodsSerum was separated into protein fraction and

Objective To improve the training system of the combined education mode between professional master degree students of clinical medicine and resident standardization training (RST) in Zhe-jiang province, and improve the professional quality of medical graduate students. Methods A question-naire was designed through literature review and expert interview, and the data of 77 clinical training post-graduates were collected, and the effect of the training was evaluated by taking the reaction level, learning level, behavior level and achievement level of Ke's evaluation as the breakthrough point. Statistical analysis was performed by SPSS 20.0, and the mean score was used as the standard deviation. The scores were compared with t test, and the scores of multiple groups were made variance analysis. Results The RST attitude value in reaction layer was 9.26±1.08, RST content value was 29.29±4.36, RST teacher enthusiasm value was 11.13±2.17, RST experience value was 17.38±3.10, which indicated that residents' overall satisfaction to RST was high, but the satisfaction on teachers, evaluation and compensation was relatively low;The grade difference before and after RST in learning layer was statistically significant (P<0.05), indicating that before and after RST the grades were obviously improved, and the sense of belonging is high. The behave layer showed the residents' behavior changed obviously before and after RST (P<0.05), and their abilities in various aspects such as ward round and dealing with common diseases were largely improved;The result layer showed 77 graduate students had no medical accident and complaint , and all of them passed the annual assessment and participated in the research projects. Conclusion In general, RST graduate students are relatively satisfied with the plan, content and methods of the training, on the other hand, there are problems such as the absence of timely information feedback, teachers' poor enthusiasm, lack of effective competition mechanism, etc. Kirkpatrick Model made a comprehensive and objective eval-uation on graduate students RST from a overall perspective, and it can be introduced into the effectiveness evaluation for graduate students RST.

Objective To explore the effect of laparoscopic salpingectomy on ovarian reserve function and serum neuropeptide Y(NPY)and cortisol(Cor)in patients with ectopic pregnancy.Methods 82 patients with ectopic pregnancy who had visited Chaohu Hospital Affiliated to Anhui Medical University from June 2018 to June 2021 were randomly divided into two groups,with 41 in each group.The control group underwent laparoscopic salpingostomy and suturing for embryo retrieval,while the study group underwent laparoscopic salpingectomy.Surgical duration,intraoperative blood loss,time to postsurgical mobilization,length of hospital stay,serum NPY and Cor levels,antral follicle count(AFC),indexes for peak flow velocity and resistance of ovarian artery were compared between the two groups.Follow-up was conducted for two years after surgery,and the success rate of pregnancy and the ectopic pregnancy rate were recorded.Results The surgical duration in the study group was shorter than that in the control group(P<0.05).The differences in serum NPY and Cor values between the two groups immediately after surgery and at postoperative week one were not statistically significant(P>0.05).At postoperative months1 and 6,the peak flow velocity of the affected ovary was lower in the study group than in the control group,whereas the resistance index was higher(P<0.05).At postoperative month 6,both groups showed an increase in peak flow velocity and a decrease in resistance index(P<0.05).There were no statistically signifi-cant differences in AFC and the success rate of pregnancy between the two groups postoperatively(P>0.05).The ectopic pregnancy rate in the study group was lower than that in the control group(P<0.05).Conclusion As compared with laparoscopic salpingostomy,laparoscopic salpingectomy for ectopic pregnancy can also preserve postoperative ovarian antral follicle count(AFC),and it has greater advantage in reducing the risk of recurrent ectopic pregnancy after surgery.

Objective To analyze the trend in caesarean section rate and puerpera characteristics in hospital,and provide valuable information for maternal and child health policy making and clinical practice.Methods A total of 12 041 women who delivered in the affiliated Chaohu Hospital of Anhui Medical University from October 1,2010 to September 30,2016 were selected.Based on Robson classification system,changes in the rate of caesarean delivery as well as its relationship with two-child policy and infant sex ratio were analyzed.Results The overall caesarean section rate gradually decreased from 66.9％ to 44.2％ during the past six years.Respectively,the caesarean section rate in primiparae with singleton term babies decreased to 32.1％ and the rate in multiparas without uterine scar decreased to 14.2％,and the rate in premature delivery decreased to 22.9％,the differences were significant (P＜0.01).The proportion of vaginal delivery (R1,R3),multiparas with uterine scar (R5) and twins pregnancy (R8) increased,the differences were significant (P＜0.01).The annual overall newly-born sex ratio ranged from 110:100 to 128:100.In group R1,more babies were girls,the proportion was stable,more women with premature delivery and multiparas had boy babies,but the boy babies by multiparas without uterine scar obviously decreased in the last 2 years.Conclusions Primiparae with singleton head birth,multipara without uterine scar and women with premature deliveries are the key population in the effort of reduction of caesarean section rate.The caesarean section rate and proportion were unstable in multiparas with uterine scar,breech deliveries and twin deliveries.The application of Robson classification system can improve the comparability of the surveillance data.