三氧化物多聚体应用于活髓切断术的临床疗效研究

目的评价三氧化物多聚体(MTA)用于活髓切断术的临床效果。方法选取外伤冠折露髓的年轻恒前牙48颗,随机分为2组,每组24颗。氢氧化钙组用氢氧化钙盖髓,MTA组用MTA盖髓,追踪观察3年并进行临床评价。结果MTA组成功22颗,失败2颗,氢氧化钙组成功20颗,失败4颗,2组差异无统计学意义。结论MTA是一种较理想的直接盖髓剂。     

MTA用于年轻恒前牙直接盖髓术的临床效果观察

目的 观察三氧化矿物聚合体(mineral trioxide aggregate,MTA)应用于年轻恒前牙意外露髓时直接盖髓术的临床效果,分析影响疗效的因素.方法 上、下颌恒前牙意外露髓病例64例,68颗患牙,随机分为试验组和对照组,分别用MTA和氢氧化钙进行直接盖髓,术后定期复查,观察24个月,对盖髓术后活髓保存成功率进行统计学分析.结果 试验组成功率为91.4%,对照组成功率为60.6%,2组比较差异具有统计学意义(P<0.05);性别、颌位、露髓原因、穿孔部位、直径等因素对疗效无影响(P>0.05).结论 MTA是较理想的直接盖髓材料.     

MTA用于年轻恒牙活髓切断的临床观察

目的观察MTA在年轻恒牙活髓切断术中的临床疗效。方法随机选择7-13岁患儿79颗牙根未发育完全而露髓的患牙,随机分为2组,分别用MTA和氢氧化钙作为活髓切断后的盖髓药物,随访观察两组疗效的差异,并采用χ2、U检验作统计学分析。结果MTA组成功率96%,氢氧化钙组成功率71%,两组有显著性差异(P<0.05)。结论MTA是良好的活髓保存药物,用于活髓切断时疗效优于氢氧化钙。     

�����ǰ�����˹��۽����������Ʒ������ٴ���Ч�Ƚ�

目的比较部分活髓切断术和间接盖髓术两种方法治疗年轻恒前牙外伤冠折近髓的临床疗效,为临床寻求更佳治疗方法。方法对2005—2008年来济宁口腔医院儿童牙病科就诊的24例前牙外伤患者的31颗冠折近髓的患牙,按患者的就诊顺序随机分成部分活髓切断组(16颗)和间接盖髓组(15颗),分别采用部分活髓切断术和间接盖髓术对患牙进行治疗,随诊观察2年。结果部分活髓切断组的成功率为93.7%,间接盖髓组的成功率为80.0%,两组成功率比较差异无统计学意义(P>0.05)。结论采用部分活髓切断术治疗冠折近髓的年轻恒前牙可能较间接盖髓术更有优势。     

三氧化矿物凝聚体治疗年轻恒牙外伤的临床疗效

目的探讨三氧化矿物凝聚体（mineral trioxide aggregate,MTA）用于年轻恒牙牙外伤的治疗效果。方法收集年轻恒牙牙外伤患者30例,患牙30颗,手术显微镜下,4颗行MTA盖髓术,4颗行MTA活髓切断术,22颗行MTA根尖屏障修复术。随访观察1、3、6个月。结果 30颗患牙均得以保存,部分患牙根尖部牙骨质形成。结论 MTA用于年轻恒牙牙外伤的盖髓术、活髓切断术、根尖屏障修复术具有良好的治疗效果。     

中老年人重度磨耗患牙活髓切断治疗临床疗效研究

目的 研究中老年人重度磨耗患牙活髓切断治疗的临床疗效。方法 收集28例40岁以上患者中因重度磨耗引起牙髓炎症状的患牙56颗,每名患者均有2颗患牙,同一患者的2颗患牙,随机1颗为试验组,另1颗为对照组,对照组患牙行根管治疗,试验组患牙使用MTA作为盖髓材料进行活髓切断治疗,术后观察6个月,比较两组的临床疗效。结果 对照组有4颗患牙失败,总成功率为85.2%,试验组失败的患牙有3颗,总成功率为88.9%,两者间差异无统计学意义(P>0.05)。结论 中老年人重度磨耗患牙进行活髓切断治疗具有良好的短期疗效,与根管治疗的成功率无显著差异,严格把控适应证是治疗成功的关键所在。     

MTA用于龋源性露髓年轻恒牙部分活髓切断治疗的初步研究

目的：应用三氧化矿化聚合物（MTA）对龋源性露髓的年轻恒牙进行部分活髓切断术治疗并评价临床效果。方法：采用MTA作活髓保存剂,对26例29颗因龋露髓的年轻恒磨牙采用部分活髓切断术治疗,随访18个月,评价其疗效。结果：MTA部分活髓切断术治疗龋源性露髓年轻恒磨牙成功率为96.55%,67.85%治疗成功患牙有牙本质桥形成。结论：部分活髓切断术是治疗龋源性露髓年轻恒牙的有效方法,MTA是可供选用的较为理想的活髓保存剂。     

Vitapex糊剂应用于年轻恒切牙活髓切断术临床观察

目的观察外伤冠折恒切牙采用Vitapex行活髓切断术的疗效。方法年轻恒切牙外伤患者58例,年龄7~11岁,患牙70颗,用Vitapex作盖髓剂行活髓切断术,定期复查,随访2年。结果 70颗患牙的2年总有效率为88.57%（62/70）;露髓孔小于或等于1 mm与大于1 mm的患牙有效率有差异,但无统计学意义（χ2=0.137,P=0.711）;对3个年龄段（7岁≤年龄〈8岁、8岁≤年龄〈9岁、9岁≤年龄〈11岁）的有效率两两比较,差异均无统计学意义（P〉0.05）;伤后2 h内就诊者,其治疗有效率明显高于超过24 h就诊者（χ2=3.889,P=0.049）。结论应用Vitapex作盖髓剂,对年轻恒切牙行活髓切断术切实有效,伤后就诊时间是影响术后疗效的主要因素。     

MTA应用于间接盖髓术的疗效研究

我科自2005 年以来,将MTA(mineral trioxide aggregate)用于间接盖髓术治疗患深龋或牙髓充血的乳磨牙或年轻恒磨牙共76 例,现将3 年的随访结果报告如下. 1 资料和方法 1.1 一般资料 我院门诊选择76 例患深龋或牙髓充血的乳磨牙或年轻恒磨牙,随机分为MTA组43 个牙(其中乳牙29 颗,年轻恒牙14 颗),氢氧化钙组33 个牙(其中乳牙21 颗,恒牙12 颗),分别使用MTA和氢氧化钙行间接盖髓术,其他常规处理相同.     

两种方法治疗年轻恒切牙冠折露髓的疗效比较

目的比较部分冠髓切除术和活髓切断术治疗年轻恒切牙冠折露髓的效果。方法选择38例43颗冠折露髓年轻恒切牙,随机分为2组,分别采用部分冠髓切除术和活髓切断术治疗,随访2年观察疗效。结果部分冠髓切除术组成功率为91.30%,活髓切断术组成功率为95.00%,两组成功率差异无显著性。结论部分冠髓切除术是治疗年轻恒切牙冠折露髓的一种可选治疗方法。     

Management of open apices in thirteen traumatized permanent incisors using mineral trioxide aggregate: Case series

AimThe partial pulpotomy can offer a successful outcome for the treatment of traumatic complicated crown fractures. The aim of this clinical report was to evaluate the effect of mineral trioxide aggregate (MTA) in apexogenesis of traumatized immature permanent incisors with pulp exposure.Case reportAccording to clinical and radiological examinations complicated crown fractures and open apices were identified in 13 permanent upper incisors in ten patients (age range 7–10 years). Partial pulpotomy procedures were performed and the teeth were treated with MTA. In this report, periodic clinical and radiological follow-ups were performed. At recall examinations, all teeth were asymptomatic, and clinical and radiological investigations revealed excellent healing patterns with continued apexogenesis.ConclusionRegular examination of immature traumatized permanent teeth is critical for vitality and apexification. In this report, clinical and radiological findings confirm that partial pulpotomy with MTA is a reliable and effective treatment approach in apexogenesis of traumatized immature permanent incisors with pulp exposure.     

Evaluation of the Efficacy of Erbium,Chromium-doped Yttrium,Scandium, Gallium,and Garnet Laser in Partial Pulpotomy in Permanent Immature Molars: A Randomized Controlled Trial

IntroductionThe use of the erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser in vital pulp therapy contributes to the formation of dentin bridges and a sterile zone as well as the maintenance of the vitality of the pulp. However, no prior studies have used the Er,Cr:YSGG laser in partial pulpotomy of immature permanent teeth. The aim of this study was to compare the efficacy of partial pulpotomy treatment using mineral trioxide aggregate (MTA) alone and MTA with the Er,Cr:YSGG laser in permanent immature molars.MethodsA total of 90 caries-exposed permanent immature molar teeth were included and randomly divided into 2 groups: the MTA group (n = 45) and the laser + MTA group (n = 45). In the MTA group, MTA was applied to the exposed area on the pulp after bleeding control. In the same session, the tooth was restored with a composite resin. In the laser + MTA group, before MTA condensation, the Er,Cr:YSGG laser was applied to the exposure area. Patients were recalled at 1, 3, 6, and 12 months after treatment. The Mann-Whitney U and chi-Square tests were used for statistical analysis.ResultsThe success rate (95.5%) of the laser + MTA group was similar to that of the MTA group (88.8%). There was no significant difference between groups in terms of the frequency of at least 1 pathologic clinical or radiographic failure at 12 months (P > .05).ConclusionsPartial pulpotomy treatment showed a high success rate in immature permanent molars; however, the use of the laser did not contribute to the success rate compared with MTA alone.     

Clinical and radiographic evaluation of vital pulp therapy in open apex teeth with MTA and ZOE

The purpose of this study was to report the success rate of using mineral trioxide aggregate (MTA) and zinc oxide eugenol (ZOE) as vital pulp therapy agents in immature permanent teeth with carious or traumatic pulp exposure. Subjects were children with permanent teeth requiring pulpotomy (apexogenesis) and without systemic diseases. Both ZOE and MTA treatments as pulpotomy agents showed clinical and radiographic success in immature permanent teeth. Although MTA was more successful, it is more expensive, and dentin bridges may develop over canal orifices, complicating future root canal therapy.     

A prospective clinical study of mineral trioxide aggregate for partial pulpotomy in cariously exposed permanent teeth

The aim of this study was to evaluate the success of using gray mineral trioxide aggregate (MTA) for partial pulpotomy in cariously exposed young permanent first molars. Thirty-one first permanent molars of 23 patients with a carious exposure were treated using a partial pulpotomy technique. The age of the patients ranged from 7.2 to 13.1 yr with an average of 10 yr. Clinical and radiographic examination revealed a pulpal response within normal limits and normal appearance of the periradicular area respectively. A diagnosis of reversible pulpitis and normal periapex was established. After isolation, caries removal and carious exposure, the exposed pulp tissue was removed with a diamond bur to a depth of 2 to 4 mm. After hemostasis, 2 to 4 mm of gray MTA paste was placed against the fresh wound. The floor of the cavity was covered with a base of glass ionomer. The teeth were restored with amalgam or stainless steel crowns. Teeth were reviewed radiographically and clinically at 3, 6, 12, and 24 month intervals. Twenty-two of the treated teeth did not show any clinical or radiographic signs of failure during the follow-up evaluation period. Six teeth did not respond to vitality testing at the final follow-up period; however, no radiographic signs of failure or clinical symptoms were detected. Gray MTA was a suitable dressing agent for parital pulpotomy in cariously exposed young permanent first molars.     

Mineral trioxide aggregate vs. formocresol in pulpotomized primary molars: a preliminary report

PURPOSE: The aim of this study was to compare the effect of mineral trioxide aggregate (MTA) to that of formocresol (FC) as pulp dressing agents in pulpotomized primary molars with carious pulp exposure. METHODS: Forty-five primary molars of 26 children were treated by a conventional pulpotomy technique. The teeth were randomly assigned to the MTA (experimental) or FC (control) group by a toss of a coin. Following removal of the coronal pulp and hemostasis the pulp stumps were covered with an MTA paste in the experimental group. In the control group, FC was placed with a cotton pellet over the pulp stumps for 5 minutes and removed; the pulp stumps were then covered by zinc oxide-eugenol (ZOE) paste. The teeth of both groups were restored with stainless steel crowns. Eighteen children with 32 teeth arrived for clinical and radiographic follow-up evaluation ranging from 6 to 30 months. RESULTS: The follow-up evaluations revealed only one failure (internal resorption detected at a 17 months postoperative evaluation) in a molar treated with formocresol. None of the MTA-treated teeth showed any clinical or radiographic pathology. Pulp canal obliteration was observed in 9 of 32 (28%) evaluated molars. This finding was detected in 2 out of the 15 teeth treated with FC (13%) and in 7 out of the 17 treated with MTA (41%). CONCLUSION: MTA showed clinical and radiographic success as a dressing material following pulpotomy in primary teeth and seems to be a suitable replacement for formocresol in primary teeth.     

Long-term evaluation of pulpotomy in primary molars using mineral trioxide aggregate or formocresol

PURPOSE: The objective of this study was to assess the effect of mineral trioxide aggregate (MTA) as pulp dressing material following pulpotomy in primary molars with carious pulp exposure and compare them to those of formocresol (FC). METHODS: Of 33 children, primary molars treated via a conventional pulpotomy technique were randomly assigned to the MTA group (33 teeth) or FC group (29 teeth). Clinical and radiographic follow-up ranged between 4 and 74 months. The mean follow-up time was 38 months, with no difference between the groups. Twenty-nine teeth were followed until uneventful shedding (mean=33 months). Failures were detected after a mean period of 16 months (range=4 to 30). RESULTS: The success rate of pulpotomy was 97% for MTA (1 failure) and 83% for FC (5 failures). Eight teeth presented internal resorption. In 4 of them (2 of each group), progress of the resorption process stopped and the pulp tissue was replaced by a radioopaque calcified tissue. Pulp canal obliteration was observed in 58% of the MTA group and in 52% of the FC group (total=55%). CONCLUSIONS: MTA showed a higher (though not statistically significant) long-term clinical and radiographic success rate than formocresol, and can be recommended as its replacement as, unlike FC, MTA does not induce undesirable responses.     

Randomized controlled trial of mineral trioxide aggregate and formocresol for pulpotomy in primary molar teeth

AIM: To compare the outcome after 6 months of the application of formocresol (FC) or mineral trioxide aggregate (MTA) during pulpotomy in primary molar teeth. METHODOLOGY: A maximum of 126 children (aged 5-9 years) with carious primary teeth that required pulpotomy were selected. Following randomization, a standard pulpotomy preparation was undertaken, and the coronal pulp removed and bleeding arrested. In the FC group, cotton balls, soaked in FC, were placed for 5 min, and then the pulp chamber was filled with Zonalin, a pulpotomy agent. In the MTA group, a 1-mm-thick paste of MTA was used as a pulpotomy agent. The crowns in both groups were restored with amalgam or glass ionomer. The teeth of 100 patients were evaluated and compared clinically and radiographically after 3 and 6 months. RESULTS: No signs of clinical failure were observed at the 3- and 6-month follow-up appointments in either group. There were no significant differences in the radiographic findings of the teeth and surrounding tissue at the 3-month follow-up. However, at the 6-month follow-up, significantly more cases (P = 0.036) with root resorption were seen in the FC group; no cases of resorption occurred amongst the MTA cases. The surrounding tissue showed radiographic signs of post-treatment disease in four FC cases; none was seen in the MTA cases. CONCLUSION: After 6 months, pulpotomy with MTA was associated with fewer cases of root resorption and post-treatment disease. MTA appears to be a reliable alternative material for pulpotomy in primary molar teeth.     

Er∶YAG激光辅助在年轻恒牙间接盖髓的应用效果

目的:探讨Er∶YAG激光联合三氧化物凝聚体治疗年轻恒牙间接盖髓的应用效果。方法:采用随机数表法将因年轻恒牙牙髓病患者160例分为2组,各80例。对照组采用三氧化物凝聚体盖髓,观察组采用Er∶YAG照射联合三氧化物凝聚体盖髓。比较两组盖髓成功率、龈沟液炎症因子水平、VAS疼痛评分、牙齿活动度以及生活质量变化。结果:观察组盖髓成功率(98.75%)明显高于对照组(91.25%)(P<0.05)。治疗6月后,2组龈沟液中白细胞介素-6(IL-6)、白细胞介素-8(IL-8)、肿瘤坏死因子-α(TNF-α)、VAS评分、牙齿活动度均降低(P<0.05),且观察组以上指标水平低于对照组(P<0.05)。2组生活质量各项评分低于治疗前(P<0.05),且观察组低于对照组(P<0.05)。结论:Er∶YAG激光照射联合三氧化物凝聚体盖髓治疗年轻恒牙牙髓病疗效优于单用三氧化物凝聚体。