氢氧化钙糊剂根管内封药的临床疗效评价

目的观察氢氧化钙[Ca(OH)_2]糊剂根管封药治疗慢性根尖周炎的临床疗效。方法将204例慢性根尖周炎患牙,随机分成两组,在根管治疗中分别应用Ca(OH)_2糊剂和甲醛甲酚(FC)合剂根管内封药,观察封药1周后的疗效。结果Ca(OH)_2糊剂组的总有效率为93.40%,传统的FC组为81.63%,两组总有效率比较差异有显著性(P<0.05)。结论Ca(OH)_2在减轻根尖炎症、促进尖周组织愈合方面效果优良。     

针状碱式氯化镁的合成及形态分析

以氯化镁、氢氧化钙为原料合成了碱式氯化镁,利用TEM和XRD表征了固体产物的形态结构,分析了合成过程机理。在MgCl2/Ca(OH)2-CaCl2与MgCl2/NH4OH体系合成碱式氯化镁时,固体产物的形态结构主要取决于体系的pH值和熟化时间;在pH值小于9.5时利用MgCl2/NH4OH体系可以得到组成和结构良好的碱式氯化镁。对于MgCl2/Ca(OH)2-CaCl2体系,氢氧化钙含量增加或熟化时间延长,有利于得到针状碱式氯化镁。Ca(OH)2与MgCl2的反应历程不同于NH3·H2O,得到的碱式氯化镁在形貌和性质上存在很大差别。     

氢氧化钙用于根管消毒的临床分析

[目的]探讨氢氧化钙对感染根管消毒的效果.[方法]对临床180例根尖周炎、牙髓坏死的感染根管,分成3组,每组60例,分别用氢氧化钙Ca(OH)2、甲酚甲醛(FC)、樟脑酚(CP)消毒根管,比较3种药物封药后的疼痛反应及细菌的变化.[结果]氢氧化钙对感染根管有很强的杀菌、抑菌作用,明显优于樟脑酚,与甲酚甲醛相似,3组在厌氧菌、链球菌、乳杆菌等阳性率差异有统计学意义(P＜0.05).氢氧化钙对根尖周无刺激性及抗原性,并可促进牙本质形成及具有轻微镇痛作用,显效率为88.3%,临床效果肯定.[结论]氢氧化钙是一种无毒、对根尖周刺激性小、消毒力强临床效果好的感染根管的消毒药物.     

常用三种根管消毒药物的临床疗效比较

根管消毒是根管治疗中消除根管内细菌的必要步骤.临床上常用的根管治疗消毒药物有樟脑氯酚薄荷合剂(cp)、甲醛甲酚合剂(FC或FT)和氢氧化钙糊剂[Ca(OH)2].现比较如下.     

氢氧化钙根管内封药的临床效果评价

氢氧化钙作为常规根管内封药，近年来在多种牙髓病及根尖周病治疗中得以广泛应用。本文将Ca（OH）2与甲醛甲酚根管内封药的治疗效果进行评价，旨在对氢氧化钙疗效的可靠性作进一步探讨。     

氢氧化钙在根管消毒中的药理作用

氢氧化钙Ca(OH)2作为一种根管消毒药物,近年来在牙髓病及根尖周疾病的治疗中得以广泛应用。Ca(OH)2在杀灭感染根管内微生物和减轻两次约诊之间的症状以及减低对根尖组织的毒性等方面表现出优良的效果。文章将对Ca(OH)2在根管消毒中的药理作用作一综述。     

三种根管消毒药物的临床疗效对比观察

目的寻找一种合理有效的根管消毒药物。方法将365颗前牙及前磨牙随机分为三组,A组：根管内封甲醛甲酚（FC）;B组：根管内封樟脑苯酚（CP）＋碘仿;C组：根管内封氢氧化钙[Ca（OH）2],7d后观察根管消毒效果。结果A组与B组之间差异有统计学意义（P〈0．01）,A组与C组之间差异有统计学意义（P〈0．01）,B组与C组之间差异无统计学意义（P〉0．05）。结论Ca（OH）2组和CP＋碘仿组均有良好的消毒效果,但Ca（OH）2作为根管消毒剂更为理想。     

氢氧化钙根管消毒后根尖周环境中Ca2+浓度和pH值测定

目的 观察不同剂型氢氧化钙根管消毒后对根尖周环境中Ca2+浓度和pH值的影响.方法 选择已拔除的新鲜单根管离体牙60颗,随机分为6组,根管预备后,A、B、C组根管内分别封入30%、40%、50%的氢氧化钙水糊剂,D组根管内封入Ca(OH)2粉末,E组根管内封入Ga(OH)2牙胶尖,F组空置对照.全部牙齿分别置于蒸馏水中,于1、2、3、4、5周测定蒸馏水中Ca2+浓度和pH值.结果 各实验组Ca2+浓度随时间的延长呈上升趋势;糊剂组Ca2+浓度和pH值变化明显高于其他组(P<0.05),不同浓度组间差异无统计学意义(P>0.05);各实验组pH值变化在2～3周达峰值,之后下降.结论 氢氧化钙糊剂对根尖周环境中Ca2+浓度和pH的影响较氢氧化钙粉末和氢氧化钙牙胶尖明显;氢氧化钙根管消毒的理想封药时间在2～3周.     

氢氧化钙用于根管消毒的疗效观察

目的 观察Ca(OH)2对感染根管的临床疗效.方法 采用随机分组对照实验,以甲醛甲酚组为对照组,Ca(OH)2组为治疗组,分别记录两组封药前后的临床效果,并进行统计学分析.结果 Ca(OH)2组显效率为85.47%,总有效率为94.19%,甲醛甲酚组显效率为59.44%,总有效率为83.22%,两组比较差异有统计学意义(P＜0.05).结论 Ca(OH)2是一种高效、广谱的抗菌药物,具有良好的生物学特性,作为根管消毒药,值得临床推广应用,能很好改善临床症状.     

蜂胶与氢氧化钙单独用药的细胞毒性研究

目的:研究蜂胶与氢氧化钙(Ca(OH)2)对人牙龈成纤维细胞的细胞毒性作用.方法:采用四甲基偶氮唑盐(MTT)法分别评价蜂胶与Ca(OH)2溶液对人牙龈成纤维细胞相对增殖率的影响,用五级毒性分类法评级,并对结果进行统计分析.结果:0.1%～0.6%蜂胶与Ca(OH)2各稀释溶液毒性级均为1～2级,二者之间无显著性差异.结论:蜂胶与Ca(OH)2均对人牙龈成纤维细胞的毒性较小,是治疗口腔疾病的安全药物.     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Dr.Zhang Ren's Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.