铸造桩核修复后牙残根残冠32例分析

目的：观察铸造桩核修复后牙残根残冠的临床疗效.方法：选择32例40颗患牙,完善的根管治疗后,根管内植入螺纹桩,用光固化复合树脂做核,再制作铸造冠或烤瓷冠.术后每一年复查一次,观察期为3年.结果：修复患牙40颗,其中成功25例（33颗）占82.5%,X线显示根周无异常影,患者感觉良好,牙龈无萎缩及瘘管.失败5例,失访2例,占17.5%,X线显示根周有阴影,牙槽骨有吸收,患牙有疼痛、松动、牙龈有肿胀.结论：根管螺纹桩、光固化树脂核加全冠修复后牙残根残冠效果良好,临床上需严格掌握适应症,以提高成功率.     

金属桩核烤瓷冠修复后牙牙体大面积缺损观察

目的：探讨铸造金属桩核在后牙牙体大面积缺损修复中应用的临床疗效。方法：选择42例牙体大面积缺损经完善根管治疗的后牙,间接法制作铸造金属桩核,再按照常规制作金属烤瓷冠修复。通过2年以上的观察复查并进行临床疗效评价。结果：在临床疗效观察期间,除了1例根折、2例脱落之外,其余39例效果良好,有效率达92．86％。结论：铸造金属桩核是修复后牙牙体大面积缺损的一种效果良好的方法。     

前牙重度磨耗伴游离端牙列缺损固定-活动联合修复的临床应用

目的评价采用固定-活动联合修复前牙重度磨耗伴游离端牙列缺损重建咬合关系的临床效果。方法对28例前牙重度磨耗伴游离端牙列缺损的患者,前牙进行完善根管治疗,后牙先以活动可摘局部义齿重建后牙咬合关系和牙合间距离,经过不断调整、观察2～3个月后,采用前牙桩核烤瓷连冠修复,后牙根据最后确定的垂直高度采用附着体义齿修复。结果 28例前牙重度磨耗伴游离端牙列缺损经过咬合重建序列治疗,采用固定-活动联合修复后,患者面下1/3高度均得到恢复,面部丰满美观,关节无疼痛和弹响,前牙烤瓷冠牢固、美观,游离端附着体义齿固位良好,咀嚼效能高,无卡环,义齿美观舒适,恢复了垂直距离,确定了咬合关系。结论固定-活动联合修复是治疗前牙重度磨耗伴游离牙列缺损患者的一种有效可行的修复方法。     

闭合式上颌窦内提升的临床研究及评价

目的评价行上颌窦内提升术植骨后同期植入种植体修复上磨牙缺失的临床疗效。方法对2006年以来在我院行上磨牙缺失上颌窦内提升术同期植入牙种植体的28例患者共计54枚种植体进行为期1～4年观察随访。结果术后3枚种植体在二期修复前松动,观察期内种植体存留率为96.11%,3枚种植体再植均获得得良好的骨整合效果。54枚种植体均在术后6～12个月成功负载,功能行使良好。术中未发生上颌窦穿孔。牙槽嵴骨高度平均提升4.18mm。随访期内未发现种植体或上部结构松动。结论上颌窦内提升术创伤较小,操作简单,效果肯定,值得在垂直骨量相对不足的上颌后牙区推广。     

应用桩冠修复残牙13例

桩冠是利用金属冠桩插入根管内固定病牙的一种金属修复体。我们应用桩冠修复残根、残冠、畸形牙取得满意疗效。1　对象与方法1 1　对象　有残根、残冠和畸形牙病者 13例 ,其中男 8例 ,女 5例 ,年龄 17～ 6 8岁。外伤导致牙体缺损的 4例 ,龋病导致残牙的 8例 ,前牙错位导致畸形牙的 1例 (前牙缺损者 8例 ,上颌后牙残冠缺损者 3例 ,前磨牙残冠 2例 )。X线片示 :牙根都有足够长度 ,有 3例缺损涉及龈下 ,无松动 ,或仅有Ⅰ度松动。根尖病变者 5例 ,X线片示根尖周有阴影 ,未做根管治疗。1 2　方法对以上 13例均行完善的根管治疗。前牙 :前牙根管…     

根管治疗术一次法治疗105例隐裂牙的临床疗效观察

目的探讨根管治疗术一次法治疗隐裂牙的临床效果方法 105例117颗隐裂牙采用带环固定后使用Cortisomol糊剂进行根管治疗术一次法治疗,术后1周复诊无症状全冠修复,随访6～12个月通过临床及X线片检查疗效。结果成功109颗(93.16%);失败8颗(6.84%)。失败的8颗中有4颗原有的根分叉病变扩大,2颗出现根分叉病变,1颗出现牙根纵裂,1颗因异常咬牙合导致松动而拔除。术后有99例轻度疼痛,有16例中度疼痛,2例有重度疼痛,1周左右疼痛消失。结论根管治疗术一次法治疗隐裂牙具有较好的临床意义。     

拔除上颌磨牙致上颌窦瘘6例

拔除上颌磨牙时致上颌窦穿孔并非罕见 ,但国内报道较少。 1980年～ 1999年 ,我科因拔除上颌磨牙 (6 + 6 )致上颌窦穿孔 6例 ,采用腭瓣修补及碘仿纱条覆盖法 ,均获得满意疗效。1　临床资料1 1　一般情况　 6例中女 5例 ,男 1例 ;年龄 32～4 2岁 ,平均 37岁。不能修复的死髓牙 4例 ,残根牙2例。穿孔原因 :取断根时误将断根推入上颌窦内 3例 ,拔牙后刮牙槽窝致瘘 3例。1 2　处理方法　对牙根进入窦腔内 3例 3牙 ,立即应用骨凿将骨间隔一并凿除 ,扩大牙槽窝 ,然后让病人头后仰 ,用无菌生理盐水灌满窦腔 ,左右摇头作吐水动作 ,一般 2或 3次便可将…     

后牙残冠的树脂嵌体修复

随着生活水平的提高,人们对牙齿的保存修复提出了更高的要求。一些后牙的残根残冠在经过完善的根管治疗后,采用铸造桩核或根管钉树脂核、银汞核的方法,再经全冠修复后保存了患牙,取得了很好的效果。但也有一些后牙的残冠,由于根短、弯根或根管钙化、髓石、断针等原因,部分根管不能进行完善的根管治疗或使用钉核不能取得足够的固位力,对这类患牙常须拔除。我们在临床实践中发现,采用高强度的树脂(Artglass)嵌体可以修复此类残冠并取得了较好的临床效果。     

半切术在下磨牙根分叉区病变中的疗效及评价

目的观察半切术治疗下颌磨牙根分叉区病变的疗效并进行评价。方法选取110例112个根分叉区病变的患牙施行牙齿半切除术，将一个下颌磨牙根分叉区的病变转化为两单根牙邻面的病变进行治疗，而后行全冠或固定桥修复。结果110例112个患牙中成功牙为102个，失败牙为10个，成功率为91．1％。结论半切术对下颔磨牙根分叉区病变的治疗确有较为满意的疗效。     

保守治疗后牙纵折20例临床探讨

目的：探讨后牙纵折的保守治疗方法。方法：选择合适病例,采用钢丝结扎根管治疗和牙周治疗.全冠修复等多种方法,对后牙纵折予以保守治疗。结果：20颗患牙全部保留成功,无临床症状,可正常行使咀嚼功能,X线片未见根尖有病变或原有病变加重。结论：选择好适应症,对后牙纵折及时复位、结扎,进行彻底完善的根管治疗和牙周治疗,进行完善的根管治疗和牙周治疗,正确的复位坚强的固定以及全冠保护修复,是可以保留患牙恢复咀嚼功能的。     

Optimization of the system of medical service of students of Cadet Schools of the Ministry of Defense of the Russian Federation

One of the factors of the successful military career guidance Cadet schools students is preserving and promoting their health. Medical support of children and adolescents aged 10-17 years should include the full range of medical and preventive measures defined for this group. The state of providing outpatient care for pupils at the Cadet School in St. Petersburg was studied. These results show that full medical care in accordance with the standards can be based only on children's health clinics. It is important that the organization of medical support pupils cadet schools should be cooperate with civilian health care.     

带状疱疹83例误诊原因分析

带状疱疹是由水痘—带状疱疾病毒引起的皮肤科常见疾病。其主要的病理损害,一是受累神经的严重炎症性浸润,继而导致受侵犯神经节内神经细胞变性、坏死;二是皮肤的水泡。迅速抑制神经节和相应的感觉神经纤维的充血、水肿和坏死,防止粘连形成,达到迅速镇痛、改善皮损,缩短病程及防止后遗症的发生是治疗的关键。因而,尽早明确诊断,     

Estimation of accumulated dose of radiation by method of ESR-spectrometry of dental enamel of mammals

ESR-spectrometry was used to investigate radiation-induced paramagnetic centers in enamel of mammals: carnivores (polar bear and fox), ungulates (reindeer, European bison, moose), and man. Values at half the microwave power saturation of the radiation signal, P_1/2, evaluated at room temperature, was found to range from 16 to 26 mW for animals and man. A new approach to discrimination of the radiation induced signal from the total ESR spectrum of reindeer enamel is proposed. ‘Dose-response’ dependencies of enamel of different species mammals were measured within the dose range from 0.48 up to 10.08 Gy. Estimations of ‘radiosensitivity’ enamel of carnivores and ungulates showed good agreement with radiosensitivity enamel of man by ESR method.     

Analysis of the results of the international comparison of activity measurements of a solution of Fe

The results of an international comparison of activity measurements of a solution of ⁵⁵Fe organized by the BIPM in 2005 are reported and analysed. This exercise, which follows the procedures of the CIPM mutual recognition arrangement to update older comparisons, is a renewal of the comparison organized by the BIPM that took place in 1978. A EUROMET comparison was organized in 1996 specifically to compare activity measurements of a ⁵⁵Fe solution by means of liquid-scintillation techniques. Results of these three comparisons are presented and discussed in this paper.

The radionuclide solution was provided by the NPL, which also distributed the samples to the participants. The activity of the ampoules was measured by 16 laboratories using 12 methods producing 25 results. Some general considerations on uncertainty assessments pertaining to the different techniques used are drawn. The outcome of four different estimators is compared from which the presence of at least one outlier can be confirmed. Further measurements should be made to try to reduce the discrepancy between the results. To date the outcome of the present comparison does not show an improvement to that of the 1996 comparison.     

Evaluation of the results of various technics of non-surgical therapy of varicocele

A new method of non-surgical treatment of varicocele syndrome is described: it consists in sclerotherapy of spermatic vein by trans-femoral percutaneous catheterization with balloon-catheters. In 8 cases venous thrombosis has been induced by direct electric clotting. The techniques and a 6 months follow-up are discussed. It is pointed out that this procedure should be considered as the method of choice for tubular lesions and sub-fertility prophylaxis in young people and in childhood.     

延迟性脾破裂误漏诊原因分析

目的探讨延迟性脾破裂误漏诊原因和预防措施.方法回顾性分析总结12例延迟性脾破裂中的诊断和误漏诊的经验与教训.结果本组延迟性脾破裂的误漏诊5例(41.66%).对多发伤与脾破裂并存可能认识不足,外伤史轻微或伤员隐瞒外伤史,缺乏腹痛-缓解-突然再腹痛的典型病史,缺乏“对冲性脾破裂”力学分析和整体化诊断思路等为其误漏诊的主要原因.结论详细的外伤史和全面系统检查,重视腹以外多发伤掩盖腹内脏器伤及延迟性脾破裂可能.确立外伤-腹内脏器伤-脾破裂整体化诊断思路.不间断地辅以B超检查脾形态学变化和腹内有无积液,腹腔穿刺确定有无血腹、X线胸腹部检查观察左侧胸肋角和膈肌运动情况、必要时CT检查以尽早发现脾包膜下血肿,降低延迟性脾破裂误漏诊率.