ObjectiveTo investigate the combined effects of one to one whole process companion delivery model on emotional status and postnatal recovery of parturients.Methods350 cases adopted one to one whole process companion delivery model were set as the observation group,another 350 cases who did not received companion delivery model were set as the control group.The emotional state and postpartum recovery (the amount of vaginal bleeding after childbirth,time of the uterus return to normal size,and the incidence of urinary retention 6 h after delivery,colostrum time and fasting time) were compared between the two groups.ResultsIn the observation group,312 cases were mild anxiety(89.1％),24 cases were with moderate anxiety (6.9％),14 cases were with severe anxiety (4.0％).In the control group,32 patients with mild anxiety (9.1％),237 cases were with moderate anxiety(67.7％),81 patients were with severe anxiety(23.2％),the difference was significant.In the observation group,postpartum vaginal bleeding was(48.6 ± 9.7) ml,time length of the size of the uterus return to normal was(4.5 ± 3.1 ) weeks,the incidence of postpartum urinary retention 6 hours after delivery was 1.4％,colostrum time (16.4 ± 5.3) h,and fasting time was (12.4 ± 2.1 ) h.In the control group,postpartum vaginal bleeding was (56.5 ± 11.2) ml,time length of the size of the uterus return to normal was(7.1 ± 4.2) weeks,the incidence of postpartum urinary retention 6 hours after delivery was 6.9％,colostrum time was (23.5 ± 4.7) h,and fasting time was (15.3 ± 2.6) h,the difference was significant.Conclusions One to one whole process companion delivery model helps reduce maternal anxiety,fears,reduce the incidence of postpartum unfavorable situation effectively and promote early resumption of maternal,it is worthy of clinical application.

We investigated the carrying status of the virulence genes of Salmonella from different sources in Shijiazhuang City,China,to provide the basic data for the further risk assessment of Salmonella.A total of 186 isolates of Salmonella from different sources were collected and identified serotypes in the area of Shijiazhuang from 2011 to 2016.PCR was performed for eight virulence genes (invA,sopE,agfA,spvR,hilA,stn,pefA,shdA).These Salmonella bacteria were detected in 13 kinds of serotypes.Enteritidis is a significant advantage of the group.The above 8 virulence genes were analyzed,and the virulence genes hilA,stn and invA were the most frequently carried,their respective carrying rate were 90.3％ (168/186),86.6％ (161/186) and 82.8％ (154/186) respectively.We found the virulence genes of Salmonella from different sources were different.It is necessary to take measures to strengthen the food hygiene supervision and prevention and control of the storage and sale of raw poultry stalls in the morning market in Shijiazhuang area.

Objective To investigate the differences and characteristics of virulence genes carried by Salmonella enteritidis from different sources in Shijiazhuang City.Methods One hundred and twenty-four strains of Salmonella enteritidis isolated from morning markets of raw and poultry stalls,slaughterhouses and food poisoning specimens in Shijiazhuang area were collected.Eight virulence genes (invA,sopE,agfA,spvR,hilA,stn,pefA,shdA) were detected by polymerase chain reaction (PCR).Results Salmonella enteritidis might have different virulence gene profiles.The above eight virulence genes were detected in different strains.The carrying rate of virulence genes invA,sopE,stn,hilA,spvR and pefA in the food poisoning strains was higher than 94％.There was no difference in the carrying rate of 8 virulence gene between the morning raw poultry stalls isolates and the patient strains,but was different with the slaughterhouse strains.Conclusion There were more risks of food poisoning caused by Salmonella enteritidis from morning markets,and the hygiene supervision should be strengthened to prevent and control foodborne disease.

Purpose To evaluate the value ofintravoxel incoherent motion (IVIM) imaging in diagnosis of liver fibrosis staging in rats.Materials and Methods Rabbit models of liver fibrosis at different stages were established.All rabbits were divided into four groups based on the pathological results of fibrosis grading as S1-S4.The 1VIM imagings with 8 b-values (0,50,100,200,300,800,1000,1200 s/mm2) were performed.The diffusion coefficient (D),perfusion-related coefficient (D*),and perfusion fraction (f) were calculated and compared between control (only injection of saline) and S 1 group,S2 and S3 group.Results The D value was significantly lower in S1 group compared with control group (P＜0.05),but the D* and f values showed no significant difference between the two groups (both P＞0.05).With the progression of liver fibrosis,the D,D* and f value decreased gradually;the D* value showed significant difference between S2 and S3 group (P＜0.05),but the D and f values showed no significant differences between the two groups (both P＞0.05).Conclusion The D value is useful for differentiation of normal liver and hepatic fibrosis of S1 stage,while the D* is valuable for differentiation of hepatic fibrosis of S2 and S3 stage.However,the f value neither could detect early fibrosis,nor could differentiate hepatic fibrosis staging.IVIM imaging provides a noninvasive method for early and accurate staging of liver fibrosis,which may be of great help in clinical diagnosis and treatment.

Objective:To explore the effects of surface bonding on compressive strength of chemically-cured(Dycal) and light-cured (Calcimol LC) calcium hydroxide.Methods:32 experimental specimens were prepared and divided into 4 groups(n =8):Group A,Dcyal without surface bonding;Group B,Calcimol LC without surface bonding;Group C,Dycal with surface bonding;Group D,Calcimol LC with surface bonding.German Zwick universal electronic testing machine was used to test the compressive strength of the specimens.Results:The average compressive strength value of group A,B,C and D was (110.48 ± 19.9),(162.6 ±7.8),(136.8 ± 17.2) and (223 ± 31.1) MPa respectively.Among them,the compressive strength of Group D was the highest (P ＜ 0.05).Compressive strength value of group B was higher than that of group A (P ＜ 0.05).No statistical difference was detected between other groups.Conclusion:The compressive strength of Light-cured Calcium Hydroxide is higher than that of chemically-cured Calcium Hydroxide.Surface bonding treatment can improve the compressive strength of Light-cured Calcium,no apparent effects can be produced on chemicallycured Calcium Hydroxide.

Objective: To investigate the effect of self-etching adhesive with different unsealing time on the microleakage of the adhesive interface between tooth and resin. Methods: Unopened self-etching adhesives, Scotchbond Universal (S) and Xeno V+ (X) were respectively used to adhere Z350 resin for restoration of the prepared occlusal cavities sized 4 mm × 4 mm × 4 mm (n = 40) . The methylene blue staining method was used to observe the microleakage of the adhesive interface between the tooth and filling material at the instant moment, 1, 2 and 3 months after the self-etching adhesives was opened (n = 10) . Results: (1) Increase of microleakage in S group was found with the time span after unsealing, and there was a statistical difference between the instant moment and 3 months after unsealing (P＜0. 05) . (2) There was no significant difference at the 4 test time points in X group (P＞0. 05), although the microleakage value of the samples were increased with the increase of the time after unsealing. (3) The microleakage of X group was greater than that of S group at the instant moment and 1 month after unsealing (P＜0. 05) . Conclusion: Unsealing time may increase the microleakage of the adhesive interface between the tooth and the filling material, the effect varies with the types of the adhesives.

For adapting to the change of modern medical model and suiting social demand of high quality dentists, this paper compares the differences of undergraduate education in stomatology between China and Russia by using the method of Bereday comparative education, trying to provide some reference for the reform of Chinese stomatology education. Curriculum arrangement in China is being constantly explored based on the Russian model. In China, courses are divided into basic medicine, clinical medicine and stomatology in three stages, making students relatively passive in learning. And the ratio of practice to lecture is far more higher in Russia than that in China. Thus, it's necessary to optimize structure and balance the distribution of stomatological curriculum in China, improve and popularize learning models such as problem -based learning (PBL) and so on, so as to promote the development of stomatology education of China to a higher level.

Diabetes, Gestational ; blood ; diagnosis ; Female ; Glucose Tolerance Test ; Humans ; Pregnancy ; World Health Organization

Medication-related osteonecrosis of the jaw (MRONJ) is a serious side effect of bone-modifying agents and inhibits angiogenesis agents. Although the pathogenesis of MRONJ is not entirely clear, multiple factors may be involved in specific microenvironments. The TGF-β1 signalling pathway may have a key role in the development of MRONJ. According to the clinical stage, multiple variables should be considered when selecting the most appropriate treatment. Therefore, the prevention and management of treatment of MRONJ should be conducted in patient-centred multidisciplinary team collaborative networks with oncologists, dentists and dental specialists. This would comprise a closed responsibility treatment loop with all benefits directed to the patient. Thus, in the present review, we aimed to summarise the pathogenesis, risk factors, imaging features, clinical staging, therapeutic methods, prevention and treatment strategies associated with MRONJ, which may provide a reference that can inform preventive strategies and improve the quality of life for patients in the future.
Bisphosphonate-Associated Osteonecrosis of the Jaw/prevention & control* ; Bone Density Conservation Agents/adverse effects* ; Humans ; Quality of Life ; Risk Factors

Objective To explore the effect of Morinda citrifolia juice(MCJ)combined with ethylene diamine tet-raacetic acid(EDTA)on premolar bonding strength and nanoleakage and compare the results with those of the most commonly used root canal irrigation solution,sodium hypochlorite(NaClO),to provide a reference for clinical applica-tion.Methods This study was approved by the ethics review committee.Sixty-three human premolars extracted for orthodontic treatment were randomly divided into a control group(distilled water group)and 6 experimental groups ac-cording to the different rinsing solutions used after the surface enamel was removed.The experimental groups included Group A(2.5%NaClO),Group B(5.25%NaClO),Group C(6%MCJ),Group D(2.5%NaClO-17%EDTA),Group E(5.25%NaClO-17%EDTA),and Group F(6%MCJ-17%EDTA)(n = 9).After soaking in the corresponding rinsing so-lution for 20 minutes,they were layered and stacked on their surfaces to form 4 mm×4 mm×3 mm Z350 resin blocks.Six samples from each group were cut into 1 mm×1 mm×8 mm specimen strips for microtensile bonding strength test-ing.The fracture type was determined under a stereomicroscope,and the remaining 3 samples from each group were aged and cut into 1 mm thick slices for interface nanoleakage testing and scanning electron microscopy observation of the resin dentin bonding interface.Results There were significant differences in the microtensile bonding strength among the groups(P＜0.05),and the control group had the highest bonding strength.Among experimental groups,Group B had the lowest bonding strength,mainly bonding interface fracture,and Group F had the highest bonding strength,mainly mixed fracture.There were significant differences in nanoleakage among all groups(P＜0.05),and the control group had the lowest nanoleakage value.Among experimental groups,Group B had the highest nanoleakage,with resin protrusions being unaltered,and Group F had the lowest nanoleakage value,with resin protrusions being thick and dense.Conclusion The higher the concentration of NaClO was,the worse the bonding strength and edge sealing of the crown dentin were.The effects of root canal irrigation with MCJ and EDTA on the adhesive strength and edge sealing of crown dentin were less pronounced than those of root canal irrigation with NaClO and EDTA.