Age Factors ; China ; epidemiology ; Dental Caries ; epidemiology ; Dental Health Surveys ; Epidemiologic Studies ; Humans ; Oral Health ; Periodontal Diseases ; epidemiology ; Prevalence

Evidence-Based Medicine ; standards ; Humans ; Periodontal Diseases ; diagnosis ; therapy ; Research Design

Humans ; Periodontal Diseases ; prevention & control ; therapy ; Translational Medical Research

Flipped classrooms have been developed in recent years at home and abroad although there is no systematic application in Chinese higher education institutions. College of Stomatology Shanghai Jiao Tong University has discussed the application prospect of flipped classrooms in medical education and methods of increasing effect and quality by informational means and classroom reform through a case de-sign and application in stomatology, in which performance comparison of the students in flipped classroom and traditional classroom is done as well as recognition of the students to flipped classrooms by a question-naire survey. Still, procedure, experience, supporting conditions and tips on the design and application have been concluded. The practice in classrooms tells us the students accept flipped classrooms positively and scientific design and application may increase teaching result as an effect method. Education management department of higher education institutions and faculty may take advantage of that method with varying degrees.

This paper would review the effort of low limb orthoses on sports injury, especially the basic and clinical research in the treatment, rehabilitation and prevention.

History, 20th Century ; History, 21st Century ; Periodontics ; history

Anti-Infective Agents ; administration & dosage ; therapeutic use ; Dental Plaque ; therapy ; Humans ; Periodontal Diseases ; drug therapy

Adult ; Anti-Bacterial Agents ; administration & dosage ; Humans ; Male ; Periodontal Diseases ; therapy ; Subgingival Curettage ; Treatment Outcome

Objective To discuss the effects and the main operative techniques of laparoscopic highly selective vagotomy(LHSV) in the treatment of perforating duodenal ulcer. Methods In twenty patients with perforating duodenal ulcers, laparoscopic repair of the perforation and laparoscopic freeing of the vagus nerves and highly selective vagotomy(LHSV) were performed, using ultrasonic dissector. Results In all twenty cases the operation was successful. No patient was converted into open HSV. Ulcer symptoms of 15 patients disappeared after operation, and follow up gastroscopy after 6 months showed that the ulcers had healed. The postoperative ulcer symptoms of 5 patients were markedly relieved and were easily controlled by medication. Conclusions The treatment of perforative duodenal ulcer by LHSV has the advantages of minor trauma, rapid postoperative recovery and good results. LHSV is a good procedure for the treatment of perforative duodenal ulcer .

Objective To investigate optimal radiation dose for digital radiography by researching the correlation between radiation dose and image quality of high kV chest radiography.Methods The kV of chest radiography was setted on 120 kV while mAs was changed.The chest radiography phantom and the contrast detail phantom CDRAD2.0 were exposed by DR with different mAs from 1 to 25 mAs.The entrance doses were measured for all exposures and the images were read independently by 5 observers on a higher resolution monitor of diagnosis work station.The image quality figure (IQF) was measured for each image.Comparison of the mean IQFs with different exposure doses were conducted in order to determined which was the optimal exposure condition for high kV radiography.The image quality of normal adult using different mAs,4 and 10 mAs for high KV chest radiography was compared.Results When the mAs was increased from 1 to 25 mAs,the entrance doses varied from 0.067 to 1.468 mGy.With the entrance doses increasing,the value of IQF was decreased (F =31.00,P ＜ 0.05).The values of IQF were statistically different between 1 and 4 mAs(F =15.3,P ＜0.05),and between 10 and 25 mAs(F =9.74,P ＜0.05).At 4 and 10 mAs with the entrance dose 0.250 and 0.606 mGy,the synthesis score of chest high kV radiography from two kinds of exposure dose was (24.8 ± 1.64),(25.8 ± 2.05),with no statistically significant difference.Conclusions For digital radiography,increasing radiation dose can improve image information.The optimal entrance dose of high kV chest radiography for standard body was about 0.250 mGy.