戊二醛恒牙活髓切断术的疗效观察

甲醛甲酚用于乳牙活髓切断术,通过临床观察和组织学研究都已取得了较好的效果。也有用于恒牙,初步观察有效.鉴于甲醛甲酚的生物毒性大,近年来有人主张用戊二醛代替甲醛甲酚作活髓切断术,从临床和组织学研究认为优于甲醛甲酚。笔者用2.5％戊二醛、氧化锌丁香油糊剂作118例恒牙活髓切断术,随诊复查78例,经1～1.5年的临床初步观察效果尚好。结合临床资料小结如下: 一、病例选择 1.深龋:去龋见穿髓范     

戊二醛用于牙髓治疗的疗效观察

戊二醛对革兰氏阳性菌、革兰氏阴性菌、霉菌、病毒、芽孢等均有杀灭作用。浓度为 2 % ,ＰＨ值用缓冲液调至 8.5时灭菌效力更佳。笔者用戊二醛替代甲醛甲酚用于牙髓固定和根管消毒 ,并对比观察其疗效。1　病例和方法1.1　病例选择选择急、慢性牙髓炎、各型根尖周炎、牙髓坏死、坏疽的患牙共 2 37个 ,年龄 14～ 88岁 ,随机分为戊二醛组和甲醛甲酚组。1.2　治疗和观察方法牙髓炎患者失活牙髓后封药固定牙髓。牙髓坏死、坏疽和各型根尖周炎根管冲洗 ,开放引流 3～ 5ｄ后封药消毒 ,戊二醛封药 3～ 18ｄ ,甲醛甲酚封药 3～ 5ｄ。详细记录每一患者 …     

恒磨牙牙髓切断甲醛甲酚处理后牙根吸收的临床评价

作者对16～25岁的70例急性牙髓炎和50例慢性牙髓炎患者,行尖周X照片,局麻下去髓顶,挖去冠髓,生理盐水清洗髓腔,棉球拭干,小棉球蘸甲醛甲酚置根     

甲醛甲酚氧化锌糊剂用于根管治疗术一次法的临床观察

我们自 1998- 0 3～ 2 0 0 0 - 0 7,采用甲醛甲酚氧化锌糊剂加牙胶尖进行根管治疗术一次法充填 ,取得了满意效果 ,现报告如下 :1　资料和方法1.1　一般资料用甲醛甲酚氧化锌糊剂作根管治疗术一次法充填 2 0 4例 2 39牙 ,年龄 12～ 6 9岁 ,男 10 9例 ,女 95例。上颌牙 10 7个 ,下颌牙 132个 ;前牙 15 1个 ,后牙 88个。急性牙髓炎 2 6个 ,慢性牙髓炎 32个 ,牙髓坏死 45个 ,慢性尖周炎 136个。随访 4～ 2 6个月。常规根管治疗术 (对照组 )共 6 1例 80牙 ,年龄 9～ 74岁 ,男 2 9例 ,女 32例。上颌牙 31个 ,下颌牙 49个 ,前牙 48个 ,后牙 32个。…     

戊二醛根管内消毒的效果观察

根管消毒是根尖周病治疗的步骤之一。目前常用的根管消毒药物有酚类、醛类及抗生素类。临床上最常用的是甲醛甲酚(FC)液。近年来戊二醛消毒,在临床上广泛应用。本文将戊二醛与甲醛甲酚根管内消毒效果进行评价,旨在对戊二醛疗效的可靠性作进一步的探讨。     

甲醛甲酚丁氧膏治疗乳牙慢性尖周炎54例

变异干髓术是治疗乳牙慢性尖周炎的一种方法。笔者用甲醛甲酚丁氧膏为干髓剂治疗乳牙慢性尖周炎54例,疗效较好,初步总结如下。本组病例均为乳磨牙,其中上颌12例,下颌42例,男性34例,女性20例。年龄4—10岁。54例中牙髓部份坏死10例,慢性尖周炎无瘘管32例,慢性尖局炎有瘘管12例。方法:取适量丁香油氧化锌糊剂加入一滴甲醛甲酚(FC)液,调匀成奶油色膏状物,现用现调为     

Vitapex在乳牙牙髓炎、根尖周炎治疗中的应用

目的研究Vitapex在乳牙牙髓炎、根尖周炎治疗中的应用效果。方法96颗下颌乳磨牙,其中牙髓炎58颗,根尖周炎38颗。治疗前拍摄X线片,拔髓,根管预备,髓腔甲酚甲醛棉球暂封5 d,Vitapex根充,术后拍X线片,银汞充填。根充后3、6、12和24个月定期复查。结果2年成功率牙髓炎为91.38%,根尖周炎为78.95%。结论Vitapex是一种良好的乳牙根充材料。     

甲醛甲酚空管疗法临床疗效观察

甲醛甲酚空管疗法临床疗效观察梁正华我科采用甲醛甲酚氧化锌配方用于空管疗法治疗尖周病，效果满意。１材料和方法１．１一般资料本组治疗患者１４２例（男６４，女７８），１４８个牙。年龄１０岁～７５岁。１４８个患牙中，急性尖周炎１８个，慢性尖周炎１３０个。药物...     

戊二醛与甲醛甲酚在乳磨牙冠髓切断术中的应用(摘要)

去除乳磨牙感染的冠部牙髓 ,保留未受感染的根髓 ,常用的有戊二醛与甲醛甲酚两种冠髓切断术。本文就使用这两种冠髓切断术进行讨论。选用 2 %戊二醛水溶液 ,ｐＨ4.87;甲醛 2 0ｍｌ,三甲酚 35ｍｌ,甘油加至 10 0ｍｌ;丁香油。均选择临床诊断为深龋的乳磨牙 ,局麻下低速手机去腐质 ,揭髓顶 ,切断冠髓 ,生理盐水冲洗 ,棉球吸干 ,止血 ,用本药调拌的糊剂盖髓 ,然后按充填步骤完成。这两种冠髓切断术对乳牙深龋近髓时保留健康根髓 ,使根管治疗复杂程度大为降低 ,均是较好方法。这两种冠髓切断术的远期效果也较好。戊二醛还具有形成牙本质桥的作用…     

乳牙甲醛甲酚活髓切断术疗效观察

<正> 乳牙牙髓病治疗中甲醛甲酚活髓切断术在国外已有应用(即Formocresol法,以下简称FC法),国内尚未见报道。我科对患深龋、慢性牙髓炎和急性牙髓炎等98名102只乳牙用FC法治疗,经临床、X线片观察,效果较为理想,现报道如下。     

感染根管细菌内毒素的致病机制与清除策略

细菌内毒素会影响牙髓根尖周疾病的发生发展及其治疗的预后。探究细菌内毒素的致病机制及清除措施对提高根管治疗的成功率及获得远期良好预后均有重要意义。本文就根管内细菌内毒素的产生、分布、致病机制以及清除策略等方面作一综述,为临床及基础研究提供新依据和新思路。     

Florid cemento‐osseous dysplasia mimicking apical periodontitis: A case report

Cemento‐osseous dysplasia may present as a focal, periapical or florid lesion in the mandible or maxilla. The lesion may sometimes appear similar to peri‐radicular lesions on a periapical radiograph. This report presents a case with irreversible pulpitis and root resorption as well as a mixed radiolucent/radiopaque lesion around a mandibular molar tooth root. Root canal treatment was performed and because of the radiographic signs of root resorption and the patient's fear of having a malignant disease, periapical surgery was also performed. The histopathology report confirmed the presence of florid cement‐osseous dysplasia which was mimicking apical periodontitis. Follow‐up radiography 12 months after the surgery illustrated complete healing of the radiolucent area.     

A six year evaluation of cracked teeth diagnosed with reversible pulpitis: treatment and prognosis

The purpose of this investigation was to report on the clinical outcomes of cracked teeth diagnosed with reversible pulpitis (RP). Eight thousand one hundred seventy-five patients referred for evaluation and treatment during a 6-year period had medical and dental histories, radiographs, pulpal and periapical diagnosis, periodontal probings, direct identification of crack(s) with transillumination, and biting responses on various cusps recorded. All data were stored daily in a database. All cases were treatment planned according to the pulpal and periapical diagnosis. Cases with RP were treatment planned for crowns only, regardless of periapical diagnosis. All patients were recalled at 1 year unless root canal treatment was needed before the anniversary. Results indicated that cracks were identified in 9.7% (796 of 8175) of all teeth evaluated during this time period. Of 127 patients specifically diagnosed with RP, 27 converted to irreversible pulpitis (N = 21) in 58 days or to necrotic pulp (N = 6) in 149 days. To date, none of the original remaining 100 cases of RP have required root canal treatment. The outcomes of this study suggest that if a marginal ridge crack is identified early enough in teeth with a diagnosis of RP and a crown is placed, root canal treatment will be necessary in about 20% of these cases within a 6-month period.     

Periapical status, quality of root canal fillings and estimated endodontic treatment needs in an urban German population

Abstract The objective of this study was to determine the periapical status and the quality of root canal fillings and to estimate the endodontic treatment needs in a German population. Clinical and radiographic data and the operative procedures performed were evaluated on 323 patients coming to a dental surgery in Stuttgart, Germany, in 1993. In 182 individuals at least one tooth exhibited a root canal filling, a necrotic pulp or an irreversible pulpitis. Out of the 7897 teeth examined, 215 (2.7%) had a root canal treatment (category A), 122 being nonendodontically treated (1.5%) did not respond to the sensitivity test (category B) and 53 (0.7%) were diagnosed as having irreversible inflamed pulp tissue (category C). The prevalence of teeth associated with radiographic signs of periapical pathosis was 61 % in the group of root canal filled teeth and 88% in the group of pulpless and non-endodontically treated teeth. Using the level and the density of the root canal filling as criteria for evaluating the technical standard, only 14% of the endodontic treatments of non-apicectomized teeth were qualified as adequate. The minimal endodontic treatment need is 2.3% related to all examined teeth when the root canal filled teeth with clinical symptoms of periapical periodontitis (category A) and those of categories B and C are included. The real endodontic treatment need is suggested to be larger when considering that the technical quality of the obturation is poor in most symptomless endodontically treated teeth associated with a periapical lesion. In the case of retreatment of these teeth, the endodontic treatment need would then be calculated at 3.7%.     

乳牙根管治疗术疼痛的临床分析

目的：探讨乳牙根管治疗疼痛的发生率及其与临床因素之间的关系。方法：对牙髓病、根尖周病、牙髓坏死的乳磨牙230例进行根管预备，FC消毒，用氧化锌丁香油糊剂根充，术后拍X线片，如果欠填，则重新充填。结果：乳牙根管预备后疼痛的发生率为7．83％，根充后疼痛的发生率为10．43％。根吸收、病种、超填与疼痛有明显的关系。结论：规范无菌操作、避免器械和根充剂超出根尖孔，可预防乳牙根管治疗的疼痛反应。     

Periapical tissues microvessels reactivity study after pulp extirpation and on different stages of endodontic treatment

Reaction of the microvessels in the gingival periapical tissues on pulp extirpation was followed by hyperemia development in microcirculatory bed, its expression increased in proportion as parodontal inflammation intensified and further strengthened after root canal filling. Microcirculation normalization in the gingival periapical tissues after endodontic treatment of chronic pulpitis and pulp extirpation as part of endodontic treatment was evident in 1 month in intact parodontium and in 6 months in case of its inflammation.     

乳牙根管治疗技术的进展

乳牙根管治疗是针对乳牙牙髓炎及乳牙根尖周炎的一种常规治疗方法,其过程包含完善的根管预备、根管消毒和根管充填,以去除感染,控制炎症,消除疼痛,防止对继承恒牙产生病理性影响,延长患牙的保存时间。本文通过回顾乳牙根管治疗的研究历史,总结了乳牙根管解剖学形态、根管预备、根管消毒、根管充填及抗生素应用等乳牙根管治疗相关方面研究的新进展。     

Vitapex糊剂和抗生素糊剂用于根尖诱导成形术的疗效比较

目的:观察两种根充糊剂对根尖诱导成形的作用。方法:选择年轻恒牙172颗,其中牙髓炎62颗、牙髓坏死32颗、根尖周炎78颗,随机分成两组,分别充填Vitapex糊剂和抗生素糊剂,随访3a评价其疗效。结果:总治疗有效率Vitapex组为86.0%,抗生素组为91.9%,差异无显著性(P>0.05);但在根尖周炎组两者差异有显著性(P<0.05)。结论:Vitapex和抗生素糊剂都是较理想的根尖诱导制剂,但Vitapex糊剂要注意适应证的选择。     

64颗并发牙髓病或根尖周病隐裂牙的临床和治疗分析

目的观察牙隐裂的临床表现，对隐裂牙的治疗方法进行评价。方法对64颗并发牙髓病或根尖同病隐裂牙在根管治疗前有无带环，其牙折率进行研究。结果在64颗隐裂牙中，有28颗发生于上颌第一磨牙。先上带外，再做根管治疗，患牙保存率明显高于对照组。结论隐裂牙在做根管治疗之前应上带环，根管治疗后行全冠修复。     

氢氧化钙牙胶尖在乳牙、年轻恒牙根管内封药的临床评价

目的通过临床和实验研究，确定氢氧化钙牙胶尖的杀菌作用和临床应用效果，并通过对比研究，找出其适应证。方法选取乳牙慢性牙髓炎、乳牙慢性根尖周炎和年轻恒牙外伤露髓病例进行根管封药，观察临床效果，并在临床上比较氢氧化钙牙胶尖、樟脑酚(CP)、甲醛甲酚(Fc)根管封药效果。结果乳牙慢性牙髓炎和年轻恒牙露髓患儿，封药一周后原有症状基本消失，对慢性根尖周炎也有一定疗效。氢氧化钙牙胶尖封药后效果强于CP，根尖反应小于Fc。结论氢氧化钙牙胶尖适用于乳牙、年轻恒牙根管内封药，可以推广使用。