1.A pilot study on the effects of Mini-SG~ F attachments on periodontal health of the abutment teeth used in free-end partial removable dentures
Journal of Peking University(Health Sciences) 2003;0(06):-
Objective : To investigate the effects of Mini-SG~ F attachment on periodontal health of the abutment teeth in restoring free-end removable partial dentures (RPDs). Methods : The periodontal status of the abutments in restoring free-end RPDs was longitudinally observed with periodontal indices commonly used in clinics, and a group comparison was made using a one-way analysis of variance (ANOVA). Results: The stability and retention of free-end RPDs retained by Mini-SG~ F attachments were excellent during the whole observation course. Compared with the periodontal status of the first and the second abutments before restoration respectively, no significant differences in gingival indices, plaque indices, periodontal probing depth, alveolar bone resorption levels of those were shown 6 months after restoration. The mobility of the abutments was significantly reduced when they were splinted together. Conclusion: Mini-SG~ F attachments used in free-end RPDs have no evident adverse effect on periodontal health of the abutment teeth, and the way of splinting the abutments is advantageous to their long-term health and stability.
2.Research Progress in Prevention and Treatment of Diabetic Nephropathy with TCM Polysaccharides
Yongsheng WANG ; Sitong ZHOU ; Lixia YANG
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(5):129-132
Diabetic nephropathy (DN) is one of the most important microvascular complications of diabetes, which is one of the most important causes of death in diabetic patients. Because of its high efficiency and few adverse reactions, TCM has been widely studied and used in the treatment of DN, with unique advantages. The recent research showed that a variety of TCM polysaccharides have the effects of reduce blood sugar and protect kidney. This article reviewed the research on TCM polysaccharides on the prevention and treatment of DN, which can provide references for further study and application.
3.In vitro antimicrobial effect of polymethylmethacrylate denture base with silver-containing antimicrobial agents of nanometer level
Riyue YU ; Yongsheng ZHOU ; Hailan FENG
Journal of Practical Stomatology 2000;0(05):-
Objective:To study the antimicrobial effect of polymethylmethacrylate (PMMA) denture base with silver-containing antimicrobial agents of nanometer level against Streptococcus mutans and Candida albicans in vitro. Methods:Minimum inhibitory concentration (MIC) of the silver-containing antimicrobial agent against S. mutans and C. albicans was examined. According to the MIC, 4 concentrations(1,2,5 and 10 mg/ml) of the agent were selected for the preparation of antimicrobial PMMA resin base. Then, the antimicrobial effect of the resin base was examined by in vitro bacteria culture and the most probable number(MPN) counting. Results:The MICs of the agent against S. mutans and C. albicans were 0.1 mg/ml and 1 mg/ml respectively. With the agent at 1, 2, 5 and 10 mg/ml, the inhibition ratios of the base against S.mutans were 67.4%,71.3%,99.0 and 99.5% respectively, that against C. albicans were 25.8%,54.8%,90.3% and 93.0%, respectively. Conclusion:The polymethylmethacrylate resin base with silver-containing antimicrobial agent of nanometer level at 5 mg/ml has ideal antimicrobial activity against S. mutans and C. albicans.
4.Durability of in vitro antimicrobial effect of polymethylmethacrylate denture base containing silver-supported antimicrobial agent of nanometer level
Riyue YU ; Yongsheng ZHOU ; Hailan FENG
Journal of Practical Stomatology 2000;0(06):-
Objective: To study the durability of the antimicrobial effect of polymethylmethacrylate (PMMA) denture base containing silver-supported antimicrobial agents of nanometer level against Streptococcus mutans and Candida albicans in vitro. Methods:The antimicrobial PMMA resin bases with the antimicrobial agent STR-1 at concentration of 5 mg/ml were prepared. Then the samples were divided into 4 groups: positive control group, the group immersed in distilled water at 57 ℃ for 14 days, the group irradiated by ultraviolet for 8 hours, and the group irradiated by ultraviolet for 8 hours after immersed in distilled water at 57 ℃ for 14 days. Then the inhibition ratios of the 4 groups against Streptococcus mutans and Candida albicans in vitro were tested. Results:The inhibition ratios of the 4 groups against Streptococcus mutans were 99%, 96%, 98%, and 90% in turn. The inhibition ratios of the 4 groups against Candida albicans were 91%, 82%, 90%, and 80% respectively. Conclusion: The antimicrobial effect of PMMA denture base containing silver-supported antimicrobial agents STR-1 of nanometer level at concentration of 5 mg/ml against Streptococcus mutans and Candida albicans in vitro is durable.
5.The analysis of effect of surgical treatment for acute extradural hematoma
Yuan LIU ; Yongsheng ZHOU ; Yebin ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2010;17(13):1746-1747
Objective To summarize efficacy of surgical treatment of acute extradural hematoma. Methods The clinical data of 67 acute extradural hematoma(combined skull fracture) surgery cases were retrospectively analyzed from January 2006 to December 2009. Results Cerebral hernia and the time from the formation of cerebral hernia to operation affacted the prognosis of acute extradural hematoma severely. It was controversial that removal of skull bone or not after cerebral hernia. Conclusions The timely diagnosis and operation of acute extradural hematoma was positive correlation to the prognosis. The simple removal of skull bone impacted limitedly on the prognosis of patients with GCS 3.
6.Clinical analysis for 48 cases of diffuse axonal injury
Yongsheng ZHOU ; Guanmin HUANG ; Fei LU
Chinese Journal of Primary Medicine and Pharmacy 2009;16(7):1197-1198
Objective To discuss the clinical feature, diagnostic main points and treatment of diffuse axonal injury(DAI). Methods The clinical materials and imaging findings and treatment and prognosis of 48 cases with DM were analyzed retrospectively. Results 18 cases showed a good outcome, while 12 were moderately disabled, 10 severely disabled or survived in a permanent vegetative state and 8 cases died. Conclusion To preserve the fluent respiratory tract, to control intracranial pressure, to treat with hyperbaric oxygenation and high-dose naloxone in early time were crucial in clinical practice to DAI.
7.Simultaneous Determination of Bavachin and Bakuchiol in Psorslea corylifolia by HPLC
Xiaojing HUANG ; Xiaoying ZHOU ; Yongsheng WEN
China Pharmacy 2017;28(24):3400-3402
OBJECTIVE:To establish a method for content determination of bavachin and bakuchiol in Psoralea corylifolia.METHODS:HPLC method was adopted.The determination was performed on Shim-Pack VP-ODS column with mobile phase consisted of acetonitrile-water (gradient elution) at the flow rate of 1.0 mL/min.The detection wavelength was set at 246 nm,the column temperature was 30 ℃,and the sample size was 10 μL.RESULTS:The linear ranges of bavachin and bakuchiol were 48.9-489 ng(r=0.999 8),784-7 840 ng(r=0.999 9).RSDs of precision,stability and reproducibility tests were all lower than 2.0%.Average recoveries ranged 95.30%-99.63% (RSD=1.45%,n=9),96.89%-100.82% (RSD=1.36%,n=9).CONCLUSIONS:The method is simple,accurate,stable and reproducible,and can be used for the simultaneous determination of bavachin and bakuchiol in P corylifolia.
8.The Clinical and Radiological Diagnosis of the Straight Back Syndrome
Yongsheng ZHOU ; Xiangming HUANG ; Chenghui ZHANG
Journal of Practical Radiology 2001;0(05):-
Objective To improve diagnosis of straight back syndrome.Methods 21 patients with straight back syndrome include 12 male and 9 female,and aged 15~36 years old(mean 21 years old).The standard P-A and left lateral chest film were taken and the A-P diameter and transverse diameter of the chest were measured,and the ratio between the both was calculated.Results The A-P diameter of the chest were 5.3 cm~8.5 cm(mean 6.6 cm)in male and 4.2 cm~8.1 cm(mean 6.2 cm)in female.the ratio between the A-P diameter and transverse diameter of the chest were 0.22~0.37(mean 0.34)in male,and 0.19~0.366(mean 0.31)in female.Conclusion The ratio between the A-P diameter and transverse diameter of the chest ≤0.37 is the diagnostic basis of the straight back syndrome.
9.CT Diagnosis for Peritoneum Metastatic Tumor
Lei ZHOU ; Yongsheng DING ; Lequn ZHU
Journal of Practical Radiology 2001;0(07):-
Objective To investigate characteristic of CT findings for peritoneal metastases.Methods The CT manitestations of 48 cases with pathologically proved peritoneal metastases were analysed. Results ①Ascites was seen in 32 cases, to make up 66.7%. ②Changes of omentum were found in 16 cases, to make up 33.3%; In it, cake sign of omentum were in 8 cases, nodular sign of omentum were in 5 cases, cystic sign of omentum were in 2 cases, opacity sign of omentum was in 1 case. ③Changes of mesentery were in 14 cases, to make up 29.2%. ④Thickening of the parieral peritoneurmar were in 12 cases, to make up 25%. ⑤Thickening of small intestine wall and moving of intestine were in 2 cases, to make up 4.2%.Conclusion CT is a valuable method for the diagnosis of peritoneum metastatic tumor.
10.Analysis of the causes of 92 medical disputes over prosthodontic treatments
Yongsheng ZHOU ; Jianguo TAN ; Qin YU
Chinese Journal of Hospital Administration 1996;0(05):-
Objective To find out the occurrence patterns of medical disputes over prosthodontic treatments through surveys and analyses so as to provide basis for the scientific prevention of such occurrences.Methods A statistical analysis was made of the causes of 92 medical disputes over prosthodontic treatments that occurred in the past three years,the data were processed using self-made tables,and the occurrence rates of the disputes were calculated according to their causes.Results The disputes over prosthodontic treatments in the past three years accounted for 22% of the total number of medical disputes over prosthodontic treatments.The cause leading to the most disputes involved medical quality,followed successively by service management,service manners,personal factors on the part of the patients,and charges.Conclusion There are certain patterns for the occurrence of medical disputes over prosthodontic treatments,which can be avoided to some extent if appropriate preventive measures are taken.