复方替硝唑糊剂治疗慢性有瘘型根尖周炎疗效探讨

目的探讨复方替硝唑糊剂根尖充填治疗慢性有瘘型根尖周炎的疗效。方法对94例118颗有瘘型根尖周炎患者常规根管准备并行瘘管搔刮术后,用3％过氧化氢溶液、生理盐水及4％次氯酸钠溶液依次瘘管通过,甲醛甲酚根管消毒,氧化锌糊剂密封窝洞,同时瘘管内置碘甘油。1周后,复方替硝唑糊剂根充治疗。结果半年后复查,复方替硝唑糊剂根尖充填治疗慢性有瘘型根尖周炎总有效率94．07％。结论本方法治疗有瘘型慢性根尖周炎疗程明显缩短,患者无痛苦,简便易行,复诊率明显降低。     

氢氧化钙应用于根管消毒的临床疗效评价

目的对比2种氢氧化钙制剂在根管消毒中的疗效。方法临床选择急慢性根尖周炎患者的261颗牙随机分为2组，在根管治疗过程中分别采用氢氧化钙碘甘油糊刑和vitapex2种根管消毒药进行根管消毒。比较封药7d和根管治疗完成后1年2组的临床效果并进行统计分析。结果氢氧化钙碘甘油糊荆和Ⅵtapex临床效果差异无统计学意义（P〉0．05）。结论氢氧化钙碘甘油糊剂是理想经济的根管消毒药。     

氢氧化钙控制根管治疗中急症的效果评价

目的:用氢氧化钙糊剂与甲醛甲酚作为慢性根尖周炎的根管消毒剂,比较两者在根管治疗期间急症发生的差异.方法:选择慢性根尖周炎恒牙共260颗,随机分为两组,A组用氢氧化钙糊剂消毒根管,B组用甲醛甲酚.记录临床症状、体征、摄X片、常规根管预备后,A组用氢氧化钙消毒,B组用甲醛甲酚,一周后复诊进行根充.并用临床根尖周指数(CPI)进行疗效评定,随访18个月,观察疗效.结果:A组根管治疗期间急症的发生率明显低于B组(P<0.01),两组有显著性差异.18个月有效率无显著差异(P>0.05).结论:氢氧化钙糊剂作为根管消毒剂,可减少慢性根尖周炎根管治疗过程中急症的发生.     

氢氧化钙糊剂与樟脑酚在慢性根尖周炎治疗中的临床效果研究

目的:评价氢氧化钙糊剂和樟脑酚在慢性根尖周炎治疗过程中的根管消毒效果。方法:选取因慢性根尖周炎需要进行根管治疗的患者(140例),随机分成两组,即实验组(氢氧化钙组)与对照组(樟脑酚组),每组70例,经过完善的根管预备以后实验组根管内用螺旋充填器导入氢氧化钙糊剂,对照组用光滑髓针封樟脑酚棉捻,分别封药一周后进行观察。结果:氢氧化钙组显效率较高,达88.57%,而且不良反应较小,樟脑酚组显效率为77.14%,两组比较差异显著(P0.05),具有统计学意义。结论:氢氧化钙糊剂与樟脑酚对慢性根尖周炎在根管消毒中都有一定的效果,但氢氧化钙糊剂较樟脑酚效果更明显,且不良反应比较小,同时具有更加高效且无毒副作用等特点。     

氢氧化钙用于慢性根尖周炎根管消毒的临床疗效

目的观察氢氧化钙糊剂用于根管消毒的临床疗效。方法选择慢性根尖周炎病例346例,随机分为观察组:氢氧化钙糊剂组116例,对照组:甲醛甲酚(FC)组116例及樟脑对氯苯酚(CP)组114例。观察封药1周后及根管治疗后2年的临床疗效。结果氢氧化钙糊剂组疗效均优于对照FC及CP组。经统计学分析,差异有显著性。结论氢氧化钙糊剂用于根管消毒疗效肯定,值得临床应用推广。     

氢氧化钙碘甘油糊剂作为根管内封药的疗效观测

目的:观察使用氢氧化钙碘甘油糊剂作为慢性根尖炎根管内封药的临床疗效。方法:将160颗慢性根尖炎的患牙随机分为三组(氢氧化钙碘甘油组,甲醛甲酚组,樟脑酚组),观察封药后的根管治疗期间痛(EIP)的发生率、疼痛程度、有效率,并进行统计学分析。结果:氢氧化钙碘甘油糊剂在EIP发生率,疼痛程度上优于甲醛甲酚组,而在疗效上都优于其他两组,有显著性差异(P<0.05)。结论:氢氧化钙碘甘油糊剂用于慢性根尖炎的根管消毒比甲醛甲酚及樟脑酚疗效更好。     

硅油氢氧化钙碘仿糊剂用于根管消毒的疗效观察

目的评价硅油氢氧化钙糊剂用于根管消毒的疗效。方法选择2006～2008年到笔者所在科就诊的慢性根尖周炎患者共228例230颗牙,随机分为两组。常规根管预备后,试验组在根管内封入硅油氢氧化钙碘仿糊剂,对照组在根管内封入甲醛甲酚（FC）。1周后复诊．观察封药前后临床症状和体征变化并完成根管充填。结果试验组根管封药后临床有效率为95％,对照组为91％,差异无统计学意义。试验组封药后急症的发生率为4％,明显低于对照组的12％（P〈0．01）。结论硅油氢氧化钙碘仿糊剂用于根管消毒,临床疗效肯定,且与FC相比能有效减少封药期间急症的发生,是一种比较理想的根管消毒用药。     

小儿慢性根尖周炎应用碘灭糊剂根管治疗70例疗效观察

目的：为有效治疗小儿乳磨牙慢性根尖周炎，使用了碘灭糊剂空管药物疗法。方法：常规根管治疗后．应用碘灭糊剂永久充填。结果：经2年随访观察，总治疗显效率92．8％。结论：用碘灭糊剂空管药物疗法治疗小儿乳磨牙慢性根尖周炎疗效确凿，可使儿童颌骨发育，恒牙正常萌出。     

碘仿氢氧化钙在根管治疗中的疗效观察

目的 评价碘仿氢氧化钙糊剂和氢氧化钙糊剂,在根管治疗中的临床效果.方法 将360例有瘘型慢性根尖周炎患牙,在常规根管预备形成后,随机分为两组,碘仿氢氧化钙组,180颗患牙,将碘仿氢氧化钙糊剂倒入根管内暂封一周,氢氧化钙组180颗患牙将氢氧化钙置入根管内暂封一周,分别复查封药1周,根充三月.结果 有效率分别为94.4%、77.2%,氢氧化钙组有效率分别为94.2%、87.2%,两组有效率的差异,有统计学意义(P＜0.05).结论 碘仿氢氧化钙糊剂在根管治疗中疗效好.     

氢氧化钙根管消毒糊剂联合根管治疗牙髓炎或根尖周炎的疗效分析

目的分析氢氧化钙根管消毒糊剂联合根管治疗牙髓炎或根尖周炎的临床疗效。方法回顾性分析2017年6月至2019年9月我院收治的72例牙髓炎或根尖周炎患者的临床资料,根据治疗方式不同分为对照组和观察组各36例。对照组采用氢氧化锌碘仿糊剂联合根管治疗,观察组采用氢氧化钙根管消毒糊剂联合根管治疗,对比两组的治疗效果及疼痛程度。结果观察组治疗总有效率为91.67%,明显高于对照组的72.22%(P <0.05)。观察组的根管疼痛程度明显低于对照组(P <0.05)。结论氢氧化钙根管消毒糊剂联合根管治疗牙髓炎或根尖周炎的临床疗效显著,并能够明显减轻患者的疼痛程度,值得临床推广。     

四种乳牙根管充填材料的疗效比较

目的观察ZOE糊剂、ZOE+Ca(OH)2糊剂、ZOE+碘仿糊剂、ZOE+Ca(OH)2+碘仿糊剂作为乳牙根管充填材料的临床疗效比较。方法用几种根管充填材料(ZOE糊剂、ZOE+Ca(OH)2糊剂、ZOE+碘仿糊剂、ZOE+Ca(OH)2+碘仿糊剂)对乳牙进行根管充填,观察两年后的疗效。结果4种根管充填材料有效率分别为81%,81%,92%,93%。结论ZOE+碘仿糊剂、ZOE+Ca(OH)2+碘仿糊剂作为乳牙根管充填材料较好。     

Vitapex诱导年轻恒牙根尖形成的临床疗效观察

目的观察Vitapex糊剂在根尖诱导形成术中的疗效。方法随机选择门诊52例根尖未发育完成的牙髓坏死年轻恒牙。根管预备,消毒后用Vitapex糊剂进行根尖诱导,观察1年。结果成功27例(51.92%),显效21例(40.38%),失败4例(7.69%),总有效48例(92.31%)。结论 Vitapex糊剂是一种有效的根尖诱导剂。     

Vitapex诱导年轻恒牙根尖形成的临床疗效观察

目的观察Vitapex糊剂在根尖诱导形成术中的疗效。方法随机选择门诊52例根尖未发育完成的牙髓坏死年轻恒牙。根管预备,消毒后用Vitapex糊剂进行根尖诱导,观察1年。结果成功27例（51．92％）,显效21例（40．38％）,失败4例（7．69％）,总有效48例（92．31％）。结论Vitapex糊剂是一种有效的根尖诱导剂。     

三种根管工作长度测量法精确性的临床评价

目的：观察和探讨手感法、摄片法和电测法测定根管工作长度的精确性。方法：选择慢性根尖周炎、牙周病、残根残冠等毫无保留价值的患牙及正畸需拔的健康牙，共20颗牙30个根管，分别用手感法、摄片法和电子根测仪Root ZX测量各根管的工作长度，将拔牙后直视下测得的根管长度作为诊断标准，与各种方法所测得的值进行比较，以确定其准确率。结果：手感法的准确率为33．33％，摄片法为43．33％，电测法为80．00％，手感法与摄片法比较无统计学意义（P〉0．05），RootZX法与手感法比较有统计学意义（P〈0．01），RootZX法与摄片法比较有统计学意义（P〈0．01）。结论：电子根尖定位仪测定根管工作长度的准确率比摄片法和手感法高，临床应结合使用可提高准确率。     

Vitapex糊剂用于乳牙根管充填的疗效观察

目的 :比较氧化锌丁香油糊剂和 Vitapex糊剂作为乳牙根管充填材料的临床疗效。方法 :用两种根管充填材料对乳磨牙进行根管充填 ,实验组用 Vitapex糊剂根管充填 ,对照组用氧化锌碘仿糊剂根管充填 ,观察 1年后的疗效。结果 :实验组平均有效率为 97.1% ,对照组有效率为 94 .2 % ,实验组和对照组无显著统计学差异 ( P>0 .0 5 )。结论 :Vitapex糊剂用于乳牙根管充填的疗效比较理想     

Oral health status and its inequality among education groups: comparing seven international study sites.

This study compares oral health status and its inequality among education groups across seven study sites in five countries: Erfurt, Germany; Lodz, Poland; Yamanashi, Japan; New Zealand; and Baltimore and the Lakota and Navajo Indian Health Service sites in the United States. The data, from the International Collaborative Study of Oral Health Outcomes, were collected through personal interviews and clinical examinations. The research group measured the study sites' overall oral health, examining the percentage of the population with five or more missing and two or more decayed teeth. The group also assessed the magnitude of inequality among education groups by using indices of excess morbidity. Baltimore had the lowest percentage (10.8 percent) of decayed teeth and second lowest percentage (17.3 percent) of missing teeth, but the greatest indices of excess morbidity (79.2 percent for missing, 73.1 percent for decayed). Lodz, by contrast, had the worst overall dentition status (75.3 percent for missing, 70.3 percent for decayed) but the lowest inequality indices (10.6 percent for missing, 13.8 percent for decayed). This study demonstrates the need for policymakers in the study countries to consider not only overall levels but also the distribution of oral health, and it presents various challenges for oral health professionals in designing and implementing oral health programs.     

EDTA凝胶结合C型先锋锉在钙化根管预备中的应用

目的:观察EDTA凝胶结合C型先锋锉在钙化根管预备中的疗效。方法:选择老年人细小缩窄钙化根管需行根管治疗的患牙67例,共有钙化根管56个,采用EDTA凝胶辅助C型锉进行根管疏通,记录根管疏通率,依据x线片及临床检查评价根管预备效果。结果:应用EDTA凝胶结合C型锉行钙化根管的疏通率为83.5%。结论:EDTA凝胶结合C型先锋锉可作为疏通钙化根管的有效方法。     

Vitapex根管糊剂与传统根充糊剂治疗乳牙根尖周炎的疗效比较

【目的】 比较Vitapex根管糊剂与传统根充糊剂治疗乳牙根尖周炎的疗效。 【方法】 对180例193颗根尖周炎的乳牙进行根管治疗,随机分成实验组90例98颗牙齿和对照组90例95颗牙齿。实验组采用Vitapex注射型根管糊剂,对照组采用传统根充糊剂。治疗后6个月和12个月追踪观察,对治疗效果进行比较。 【结果】 实验组与对照组治疗成功率,6个月分别为94.90%、85.26%,12个月分别为93.68%、82.42%,差异有统计学意义(6个月χ²=5.05、12个月,χ²=5.66,P均<0.05)。 【结论】 Vitapex糊剂用于乳牙根尖周炎的治疗可有效提高其成功率。     

Present and future in the use of micro-CT scanner 3D analysis for the study of dental and root canal morphology

The goal of the present article is to illustrate and analyze the applications and the potential of microcomputed tomography (micro-CT) in the analysis of tooth anatomy and root canal morphology. The authors performed a micro-CT analysis of the following different teeth: maxillary first molars with a second canal in the mesiobuccal (MB) root, mandibular first molars with complex anatomy in the mesial root, premolars with single and double roots and with complicated apical anatomy. The hardware device used in this study was a desktop X-ray microfocus CT scanner (SkyScan 1072, SkyScan bvba, Aartselaar, Belgium). A specific software ResolveRT Amira (Visage Imaging) was used for the 3D analysis and imaging. The authors obtained three-dimensional images from 15 teeth. It was possible to precisely visualize and analyze external and internal anatomy of teeth, showing the finest details. Among the 5 upper molars analyzed, in three cases, the MB canals joined into one canal, while in the other two molars the two mesial canals were separate. Among the lower molars two of the five samples exhibited a single canal in the mesial root, which had a broad, flat appearance in a mesiodistal dimension. In the five premolar teeth, the canals were independent; however, the apical delta and ramifications of the root canals were quite complex. Micro-CT offers a simple and reproducible technique for 3D noninvasive assessment of the anatomy of root canal systems.     

Root canal filling of endodontically treated teeth by dentistry students in clinical offices from 1996 to 1998--radiological results

THE PURPOSE of our study was to evaluate radiologically the degree of root canal filling of teeth treated by students. METHODS: 724 segment radiographs with an overall number of 1142 canals were examined. The level of root canal filling was measured from the radiographic apex. The objects of the study were divided into three groups: 1. canals filled to more than 2 mm from the apex; 2. canals filled up to 2 mm from the apex; 3. canals filled to the radiographic apex; 4. overfilled canals. The objects from the second and the third group were combined as a group of successfully filled canals. RESULTS: The results showed 62.90% of successfully filled canals, 27.80% of the canals were filled more than 2 mm from the radiological apex and 9.30% - with overfilling. The greatest percentage of canals filled more than 2 mm from the apex refers to the mesial and vestibular canals of the molars, and after them the most frequently obturated canals are those of single-root teeth (57.94%). CONCLUSIONS: The results obtained allow us to estimate the endodontic treatment of the students as good. The greatest difficulties are encountered in filling the vestibular and mesial canals of the molars.