BACKGROUND:Self-locking brackets changed the traditional ligation mode and obviously elevated the sliding mechanism of the teeth and the effect of its spreading during orthodontic treatment, and effectively decreased friction force. OBJECTIVE:To explore the differences of the application of 3M self-locking bracket and traditional straight wire bracket during orthodontic treatment. METHODS:A total of 796 patients receiving orthodontic correction of mild and moderate misaligned teeth, including 398 males and 400 females, at the age of 11-19 years old. 398 patients received 3M SmartClipTM self-ligating bracket braces as observation group. The remaining 398 patients received MBT straight wire appliance. The width of molars, intercanine width, superior anterior tooth convexity and correction were compared between the two groups. RESULTS AND CONCLUSION:The width of premolars and superior anterior tooth convexity were significantly better after correction than that before correction in both groups (P<0.05). Moreover, the correction outcomes were significantly better in the observation group than in the control group (P<0.05). No significant difference in the width of first molar and intercanine width was detected before and after treatment in either group, as wel as between the two groups. Aligned dentition time and the total therapeutic duration were shorter in the observation group than in the control group (P<0.05). These findings indicate that compared with the traditional MBT straight wire bracket braces, expansion arch effect of the 3M SmartClipTM self-ligating bracket braces is obvious;clinical treatment can reduce the rate of extraction cases, and shorten the course of correction.

Objective To study the self-locking brackets SmartclipTM 3MXTM MBTTM brackets and traditional pain comparison.Methods 72 patients with non-extraction orthodontic treatment were randomly divided into two groups,a group treated with self-locking brackets,the other group treated with traditional care slot.Patients in orthodontic treatment of pain within a week were inoestigated by way of a questionnaire survey,including orthodontic pain,soft tissue irritation,and the strength of a normal life for patients with the impact.Results Questionnaire response rate was 94.4％.The level of pain was similar in self-ligating bracket group and the traditional bracket group.However,time-related,including pain after orthodontic treatment was 3h,1 d time,the most intense pain and continued to 3d,back pain relief,1w about pain relief.Conclusion Self-locking brackets and brackets have noobvious pain intensity differences,but related with orthodontic force to the clinical use of force should pay attention to light.

Objective To evaluate the effects of multiloop edgewise arch wire(MEAW)technique combined with rapid maxillary expansion(RME)in correcting skeletal crossbite young adults with mandibular deviation.Methods 9 young adults with skeletal class Ⅲ malocclusion and mandibular deviation were selected(4 males,5 females,aged from 16.2-18.8 years).They were all corrected with RME and MEAW techniques.Cephalometric radiographs were taken and analyzed at the pretreatment(T1)and post-treatment(T2).Students't-test was used to determine if there were significant differences between the 2 time periods.Results SNA increased by(1.4+1.7)°,SNB decreased by(0.7+0.9)°,and ANB increased by(2.1+0.9)°;U1-SN increased by(2.7+3.7)°and L1-MP decreased by(5.4+2.9)°.MP-SN and Mp-FH increased by(1.9+2.0)°and(1.1+2.6)°respectively,neither of which had significant difference.Maz-Maz' increased by(2.6+2.8)mm,while Um-Um'increased by(6.2+5.9)mm.The latter had significant difference.△Cd-Me and △Cd-Go decreased by (3.7+2.1)mm and(2.8+1.6)mm respectively;while ManDP-MSL and Me-MSL decreased by (3.8+2.3)mmand(3.6+2.5)mm,respectively.All of them had significant differences.Conclusion MEAW technique combined with RME is a clinically effective method for correcting adults with mild and moderate skeletal crossbite and mandibular deviation.

ObjectiveTo evaluate the effects of modified interocclusal lip arch appliance in correcting primary dentition functional crossbite.Methods Twenty children with functional crossbite were selected and treated with this new method.Cephalometric radiographs were taken and analyzed at the pre-treatment time (T1) and the post-treatment time (T2).Students't-test was used to determine if there were significant differences between the 2 time periods.ResultsSNA increased by (0.35 ±1.12)°,SNB decreased by (2.53±0.91)°,and ANB increased by (2.88± 2.24)°.Ns-Sn-Pos increased by (3.32±2.14)°,Ns-Prm-Pos decreased by (3.46±2.63)°.All of the anterior crossbites were corrected and the profiles were improved satisfactorily.Conclusions Modified interocclusal lip arch appliance is a clinically effective method for correcting primary dentition functional crossbite,balancing anteroposterior jaw relationship,and improving the face profile.

Objective To study the effect of health education on compliance of patients undergoing anticoagulant therapy after cardiac valve replacement? Methods One hundred and six patients undergoing anticoagulant therapy after cardiac valve replacement received enhanced health education after cardiac valve replacement? A self-designed questionnaire was used to investigate their treatment compliance and mastery of related knowledge pre-and postoperatively? Result The mastery of the knowledge related to anticoagulant therapy and the compliance were significantly improved compared to pre-health education(bothP < 0?05)? Conclusion The health education may improve the recognition of anti-coagulant therapy as well as compliance of patients?

In light of modern management theories and the actual situation in the hospital, a post and performance based hospital compensation system was designed. The chief features of the design include: ① Compensation consists mainly of post salary and performance salary while giving expression to the principle of stability and gradual transition, with the fixed part (accounting for about 60%) of the original file salary being retained; ②Post salaries fall under a hospital wide unified grade compensation framework, with grade evaluations based on a hospital wide unified system of indexes and weight, and they go up or down within the salary width each year according to the results of performance assessment; ③ Performance salaries are closely linked with post grades and performance assessment, with a hospital wide unified model of post and performance contracts being the basis for assessment; ④ The entire compensation design is based on scientific and standard post surveys, post appraisals and post specifications.

Objective To study the correlation between serum lipids and thyroid function after withdrawn of thyroid hormone in the patients with differentiated thyroid cancer .Methods One hundred and thirty cases of differentiated thyroid carcinoma treated by operative therapy in our hospital form August 2014 to August 2015 were selected .Serum FT4 ,TSH ,FT3 ,triglyceride ,total cho-lesterol ,LDL-C ,HDL-C indexes were detected before discontinuation of levothyroxine sodium (L-T4) ,before operation and 3 weeks after drug withdrawn .Thus the correlation between blood lipid levels and thyroid function was analyzed .Results The HDL-C and the TSH level was positively related before operation (P<0 .05) ,other indexes had no obvious correlation with thyroid function (P>0 .05);the blood lipid levels after medication withdrawn had no obvious correlation with thyroid function (P>0 .05);the total cholesterol levels after medication discontinuation had negative correlation with FT 3 and FT4 levels(P<0 .05);HDL-C was nega-tively correlated with FT3 and FT4 levels(P<0 .05) ,and positively correlated with TSH level (P<0 .05);LDL-C was negatively correlated with FT4 (P<0 .05) .Conclusion When the application treatment of thyroid hormone is suspended ,with the TSH level increase ,the HDL-C level has somewhat elevation ;total cholesterol ,HDL-C and LDL-C levels are negatively correlated with FT 3 and FT4 ,after discontinuation of medication withdrawn ,the blood lipids metabolism abnormality is closely related with thyroid function decline .

Sixty patients who underwent brain and neck CT angiograpby (CTA) were randomly divided into two groups: conventional protocol group and optimizing protocol group with 30 in each. The images were evaluated by two radiologists independently. The images of optimizing group avoided the artifact disturbance of the brachiocephalic vein effectively and greatly improved the imaging quality of arteria carotis communis and arteria vertebralis initial segment. Compared with the conventional group the differences were statistically significuat(P <0.05). The optimization of 64-MDCT brain and neck CTA is feasible and effective.

Objective To investigate the effects of the routine needle-withdrawing method and improved needle-withdrawing method? Methods One hundred patients undergoing intravenous transfusion were randomized into the control group and the improvement group (255 times of transfusion ), with 50 cases in each group: the former was treated with routine needle-withdrawing method and the latter with the improved method? Complications after needle-withdruing were compared between the two groups? Result The rates of pains, subcutaneous bleeding or bleeding at the puncture points in the improvement group were all significantly lower than those of the control group (P<0?001)? Conclusion The improved needle-withdrawing method is effective in reducing the rate of post-withdrawal complications and improve the safety of intravenous transfusion?

Objective Sylvian Veins morphology analysis contributes to cortex veins protection for clear surgical fields, a better choice for operation plan evaluation. Methods 33 cases diagnosed as epilepsy, male∶female=19∶14, mean ages 18.7y (9-52). Results 4 types of Sylvian Veins spreading were observed from the procession of functional surgery: long stem pattern 49%(16/33), short stem pattern 15%(5/33), long truncks pattern 33%(11/33), and absent stem pattern 3%(1/33). Conclusion Sylvian Veins morphology analysis shows that there exist 4 main patterns, which may contribute to functional surgery about frontal operculum, temporal operculum and insular lobe or intracranial electrode placement.