Vitapex治疗成年患者根尖孔闭合不全并发慢性根尖周炎的疗效观察

目的：观察Vitapex对成年患者根尖孔闭合不全并发慢性根尖周炎患牙的临床疗效.方法：选择成年患者根尖孔发育不全并发慢性根尖周炎患牙36例,完成根管预备、消毒后,用氢氧化钙类糊剂Vitapex行根尖诱导术.经随访1～3a,在确认根尖有硬组织形成时,行注射式热牙胶根管充填,术后定期复查.结果：根尖发育完成者7例,占19.4%;根尖处有钙化桥形成者27例,占75%;失败2例,占5.6%.总有效率为94.4%,平均治疗周期为13.0周.结论：Vitapex对成年患者根尖孔发育不全并发慢性根尖周炎的患牙具有良好的临床疗效,值得临床推广应用.     

根尖诱导成形术对成人前磨牙根尖发育闭合不全伴慢性根尖周炎的疗效评价

目的使用根尖诱导成形术治疗成人根尖发育闭合不全伴慢性根尖周炎的前磨牙,评价其临床疗效。方法选取年龄18~26周岁,患有根尖发育闭合不全伴慢性根尖周炎的上、下颌前磨牙共18颗,使用Vitapex糊剂行根尖诱导成形术。术后分别于第2周、1个月复查,之后每3个月复查1次。复查时常规行临床检查及X线片检查。在确认患牙根尖部有硬组织形成封闭根尖孔后对其行永久根管充填。结果 18颗患牙中根尖闭合Ⅱ型者15例,Ⅲ型者3例,总有效率100%。X线片示14例根尖周低密度影像消失,4例根尖周低密度影像缩小。从根管中封入Vitapex糊剂至永久充填,平均治疗周期为10.2个月。结论根尖诱导成形术对于治疗成人根尖发育闭合不全伴慢性根尖周炎的前磨牙有良好的治疗效果。     

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。     

Vitapex治疗成年患者根尖发育不全伴窦型慢性根尖炎的临床研究

目的观察Vitapex治疗成年患者根尖发育不全伴窦型慢性根尖周炎患牙的临床疗效。方法选择成年患者根尖发育不全并发窦型慢性根尖周炎患牙32颗,用Vitapex糊剂行根尖诱导术,定期复查,在确认根尖有硬组织形成,行永久性充填。结果根尖发育完成5例,占15.6%;根尖形成钙化桥24例,占75%;失败3例,占9.4%。总有效率90.6%。结论Vi-tapex治疗成年患者根尖未完全发育伴窦型慢性根尖周炎患牙有良好的临床疗效,值得临床推广。     

Vitapex糊剂用于根尖诱导成形术的临床疗效观察

目的 观察Vitapex糊剂在根尖诱导成形术中的临床疗效。方法 选择72颗牙根未发育完成的年轻恒牙,随机分两组,作根尖诱导成形术。实验组用Vitapex糊剂,对照组用氢氧化钙糊剂,随访2年,观察疗效。结果 经2年的随访观察,氢氧化钙组有效率为80.55%,Vitapex组有效率为94.44%,两组比较有显著性差异(P<0.05)。结论 Vitapex糊剂用于根尖诱导成形术,有较理想的临床疗效。     

Vitapex糊剂根尖诱导成形术疗效观察

儿童恒牙因外伤、畸形,龋病,造成牙髓或根尖周炎症,导致牙根停止发育,为保存牙齿并使牙根完成发育,我们用Vitapex糊剂行根尖诱导成形术取得较好效果,现报告如下:1材料和方法1.1一般资料患者186例,205颗牙,男96例,女90例,年龄6～12岁,上前牙88颗,由龋病或外伤引起;前磨牙62颗,畸     

Vitapex糊剂治疗乳牙根尖周炎疗效观察

目的：观察Vitapex糊剂治疗牙瘘管型慢性根尖周炎的临床疗效。方法：选择70颗瘘管型慢性根尖周炎的乳牙，用甲硝唑注射液冲洗后Vitapex进行根管充填。结果：70颗患牙中成功64颗，成功率为91．43％。结论：本方法是保存乳牙至乳恒牙正常替换的较理想的治疗方法。     

Vitapex糊剂用于根尖诱导的临床分析

本人对79名患者86个年轻恒牙用V itapex糊剂根充,结果报告如下:1材料和方法1.1病例选择选择有牙髓炎或根尖周炎症状,X片显示牙根尚未发育完全的79名患儿86个患牙。男52例,女27例,年龄7~13岁,其中切牙43个,前磨牙23个,磨牙20个,根据临床检查及根尖病变情况分为牙髓炎57个,根尖周炎20个,根尖周炎窦道型9个。1.2方法常规开髓拔髓,注意保护牙乳头,20 mg/L氯亚明和9g/L生理盐水交替冲洗,吸干根管,封CP棉捻,待无渗出后,用V itapex糊剂根充,氧化锌垫底,19个牙根发育第9期的患牙(其中下颌前磨牙13个,磨牙6个)予水门汀充填,其余牙齿全部永久性充填…     

Vitapex糊剂治疗慢性根尖周炎临床疗效

为了观察加压注射式新型材料Vitapex糊剂治疗根尖有稀疏区慢性尖周炎的疗效 ,作者进行了下述临床试验。1　材料和方法1.1　材料Vitapex糊剂 (Neo产品、日本生产 )。1.2　病例选择选择初次就诊根尖稀疏区最大直径为 0 .5cm～ 3.5cm慢性尖周炎患者 16 0例 ,无合并牙周疾病且患者无全身系统性疾病及无碘剂应用禁忌症 ,其中男 87例 ,女 73例 ,年龄 16～ 5 8岁之间。术前照X线牙片 ,角度一致。1.3　病例分组随机分成实验组和对照组实验组 80例 :根尖稀疏区 :直径 0 .5cm～ 1cm 6 7例 ,直径 1cm以上～ 2cm 8例 ,直径 2cm以上～ 3.5cm5例。对照组…     

Vitapex糊剂用于根尖诱导成形术的疗效分析

目的观察vitapex对牙根发育停止年轻恒牙根尖诱导作用。方法vitapex糊剂充填患牙240颗,观察牙根发育形态对牙根继续发育及根尖孔闭合的影响。结果牙根发育形态对疗效影响有显著差异,P＜0.05。结论vitapex糊剂用于根尖诱导术疗效良好。     

MTA治疗成年患者根尖孔未闭合患牙的疗效评价

目的 评价无机三氧化聚合物（MTA）治疗成年患者根尖孔未闭合患牙的临床疗效。方法 选取成年患者根尖孔未闭合的前牙及前磨牙共41颗,随机分为2组,试验组21颗牙,在完成根管预备和消毒后,在手术显微镜下将MTA充填于根尖孔及根管下段,厚约3-5 mm,硬固后采用热牙胶完成根管中上段的充填;对照组20颗牙,采用氢氧化钙类根管糊剂Vitapex行根尖诱导成形术,定期复查,在根尖部有硬组织形成后完成根管治疗。记录患者就诊次数、治疗周期及治疗效果。结果 试验组术后X线片显示15颗患牙适充,6颗牙超充约0.5-2 mm,根管内充填物致密;平均就诊次数3.5次,平均治疗周期11.8 d,复查时多数患牙窦道闭合,根尖周病变明显缩小或消失,无新的暗影出现;对照组11颗患牙诱导成功,根尖有硬组织形成,9颗牙无明显根尖屏障形成,平均就诊次数6次,平均治疗周期306.8 d。结论 与根尖诱导成形术比较,MTA治疗成年患者根尖孔未闭合患牙的周期短,疗效好。     

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。     

Comparative Evaluation of Platelet-rich Fibrin and Mineral Trioxide Aggregate as Pulpotomy Agents in Permanent Teeth with Incomplete Root Development: A Randomized Controlled Trial

Introduction

The purpose of this study was to evaluate and compare, clinically and radiographically, the effects of platelet-rich fibrin (PRF) and mineral trioxide aggregate (MTA) as pulpotomy agents in permanent teeth with incomplete root development.

Methods

A total number of 70 children requiring pulpotomy in 70 permanent molars with incomplete root development were screened. Sixty-two patients met the inclusion criteria and were enrolled in the study. The patients were randomly allocated equally in 2 treatment groups. MTA pulpotomy was performed in group A (the control group), and PRF pulpotomy was performed in group B (the experimental group). The treated teeth were restored with amalgam followed by stainless steel crowns. Clinical and radiographic evaluations were performed after 6, 12, and 24 months. Thus, the data obtained were blindly analyzed using the chi-square test.

Results

There was no significant difference between the 2 groups in terms of clinical and radiologic success. Radiographically, all available cases (53 teeth) showed evidence of root growth and canal narrowing. Complete apical closure was observed in 88.8% in the PRF group (experimental group) and 80.07% of roots in the MTA group (control group), respectively, at 24 months.

Conclusions

PRF could be used as a suitable biological and economic alternative to MTA in pulpotomy procedures of permanent teeth with incomplete root development.     

Effect of Mineral Trioxide Aggregate Apical Plug Thickness on Fracture Resistance of Immature Teeth

Introduction

The aim of this study was to compare the fracture resistance of simulated immature teeth after using different thicknesses of mineral trioxide aggregate (MTA) apical plugs.

三氧化矿物凝聚体用于修补髓腔穿孔的临床效果观察

目的 研究三氧化矿物凝聚体(mineral trioxide aggregate,MTA)修补髓腔穿孔的临床效果.方法 收集临床髓室底或髓室、根管侧壁穿孔的恒牙8颗,用MTA对穿孔处填塞、修补.完成根管充填及永久充填后定期复查.追踪观察0.5～5.0年.结果 经复查8颗患牙无临床不适症状,咀嚼功能正常,X线片显示穿孔处未见新的牙槽骨病变,或原有牙槽骨病变缩小.结论 MTA是一种较理想的髓腔穿孔修补材料.     

Regaining Apical Patency after Obturation with Gutta-percha and a Sealer Containing Mineral Trioxide Aggregate

Introduction

MTA Fillapex (Angelus Solucoes Odontologicas, Londrina PR, Brazil) was introduced as a mineral trioxide aggregate (MTA)-based sealer used for endodontic obturation. There is a lack of research that evaluates the ability of different solvents to soften MTA-based sealers during retreatment. This study tested the ability of 4 commonly used endodontic solvents to soften gutta-percha and MTA Fillapex to allow for the re-establishment of apical patency.

Methods

Eighty-six extracted maxillary anterior teeth were instrumented to the working length to a size 45 (.04 taper size). Teeth were divided into 2 groups (n = 43 for each group). MTA Fillapex was placed into all canals. Group 1 was obturated with gutta-percha to the working length, and group 2 was obturated 2 mm short of the working length to ensure the apical 2 mm was filled with sealer only. Both groups were divided into 4 subgroups (n = 10). The remaining teeth served as the control group. Each subgroup was exposed to 1 of the following solvents: chloroform, Endosolv R (Septodont, Saint-Maur, France), Endosolv E (Septodont), or eucalyptol.

Results

Patency was re-established in 100% of the teeth in groups 1 and 2 when tested with chloroform or Endosolv E, 80% of the teeth in group 1 and 90% in group 2 when tested with eucalyptol, and 10% of the teeth in group 1 and 50% in group 2 tested when with Endosolv R. The chi-square test indicated there was a statistical difference between Endosolv R and the other tested solvents for both groups.

Conclusions

Chloroform, Endosolv E, and Eucalyptol soften GP and MTA Fillapex sufficiently to aid in re-establishing apical patency during endodontic retreatment.     

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糊剂在根尖诱导成形术中的疗效观察

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64例牙髓坏死根尖未发育的年轻恒牙。根管预备,消毒后用Vitapex糊剂进行根尖诱导,随访3年。结果　成功24例(占37·5%),进步37例(占 57·81%),失败3例(占4·69%),总有效为61例(占95·31%)。结论　Vitapex糊剂是一种较理想的根尖诱导制剂。     

A 10-year Follow-up Study of 119 Teeth Treated with Apical Surgery and Root-end Filling with Mineral Trioxide Aggregate

Introduction

The objective of this clinical study was to assess the long-term outcome (clinical signs/symptoms and radiographic healing) of teeth treated with apical surgery and mineral trioxide aggregate (MTA) for root-end filling.