改良everStick C&B纤维树脂粘接桥在老年切牙缺失修复中的疗效观察

目的:评价改良everStick C&B纤维树脂粘接桥在老年切牙缺失修复中的临床疗效。方法:纳入年龄65岁以上切牙缺失患者32例。其中上颌切牙缺失13例、下颌切牙缺失19例;缺牙1颗13例、缺牙2颗11例、缺牙3颗5例、缺牙4颗3例;基牙松动24例、基牙无松动8例。对所有患者均采取改良everStick C&B纤维树脂粘接桥修复治疗。分别于修复完成后6、 12、 18个月复查,复查内容包括修复体脱粘接、折断、颜色变化、缺损以及基牙松动、牙周组织炎症等6项指标。修复完成后6个月对患者进行满意度调查,调查内容包括治疗过程是否舒适、美观效果是否满意、修复后发音、咀嚼是否舒适等3项指标。结果:32位老年患者修复完成后6个月,6项指标均为A级。12个月,出现1例修复体缺损B级,2例基牙牙周组织炎症B级,其余均为A级。18个月,出现1例修复体缺损B级,3例基牙牙周组织炎症B级,其余均为A级。2例修复体缺损B级经过树脂充填后均达到A级。5例基牙牙周组织炎症B级经过牙周洁治后5～7 d均达到A级。患者满意度调查3项指标均为A级。结论:改良everStick C&B纤维树脂粘接桥...     

纤维增强树脂粘接桥修复老年缺失前牙的临床观察

目的:探讨纤维增强树脂粘接桥修复老年缺失前牙的临床效果。方法:选取48例前牙缺失的老年患者,行纤维增强树脂粘接桥修复缺失前牙,对义齿的固位、功能和使用情况进行30个月的随访临床观察。结果:1例修复体折裂,2例修复体脱粘接,其余45修复体均获得成功,患者咀嚼、容貌改善明显,达到预期对义齿功能和美观的要求。结论:纤维增强树脂粘接桥修复老年缺失前牙是一种大道至简的修复方案,适宜临床推广应用。     

切牙单端铸瓷粘接桥的临床应用初探

目的 探索切牙单端铸瓷粘接桥的治疗方法,观察其临床效果,以期为单端粘接桥的临床应用提供参考.方法 选择单颗切牙缺失病例10例,制作舌侧翼板固位的单端铸瓷粘接桥,共制作10件粘接桥,分别于修复后2周、1年、2年复查,复查内容包括:修复体折裂情况、边缘适合性、继发龋、颜色匹配性.结果 10例患者平均观察14.7个月.10件单端铸瓷粘接桥均无支架及饰瓷折断、裂纹,无松动;10颗基牙和固位体边缘密合,无边缘着色,无继发龋;7例修复体颜色匹配为A级,3例修复体颜色匹配为B级.结论 单端铸瓷粘接桥可修复单颗切牙缺失,牙体组织磨除量小,短期内临床效果良好,但其强度及粘接效果能否满足临床要求尚需进一步观察.     

二硅酸锂基玻璃陶瓷单端树脂粘接桥修复个别前牙缺失的临床应用

目的 探讨二硅酸锂基玻璃陶瓷单端树脂粘接桥修复个别前牙缺失的临床效果，为个别前牙缺失修复方式的选择提供参考。方法 本研究已通过单位伦理委员会审查批准，并获得患者知情同意。选取42例单颌前牙缺失数量在两颗内的患者，采用二硅酸锂基玻璃陶瓷单端树脂粘接桥修复，修复后6个月、1年、2年、3年进行随访，评价美学、功能修复效果及牙周健康状况，并采用视觉模拟评分量表（VAS）调查患者的满意度。结果 观察期间，42例二硅酸锂基玻璃陶瓷单端树脂粘接桥修复的患者中有1例3个月内连接体发生断裂，1例2年内发生脱粘；美学修复效果的等级均评定为A级；修复后牙周健康状况良好，基牙及桥体下的软硬组织无临床吸收现象，评价指标均为A级；患者总满意率为100%。结论 对于个别前牙缺失，二硅酸锂基玻璃陶瓷单端树脂粘接桥可达到微创、固位牢靠、美观舒适和生物相容性好的修复效果，患者满意度高，在临床中可以考虑作为一种理想的修复方式。     

全瓷贴面在前牙美容修复中的疗效观察

目的：探讨全瓷贴面在前牙美容修复中的疗效。方法：选择97颗前牙,全瓷贴面修复,并进行2年的随访,采用美国公共健康协会的修正标准进行评价分析。结果：97颗全瓷贴面在修复完成后6个月,六项评价指标均达到A级;修复完成后1年,修复体周围龋：2颗达到B级;修复完成后2年,2例患者(3颗牙)失访,修复体周围龋：2颗B级、1颗C级,修复体折断：1颗B级,基牙松动：2颗B级。结论：全瓷贴面在前牙美学修复中的临床效果是非常理想的。     

铸瓷高嵌体修复牙体严重缺损的 年轻恒磨牙的效果分析

目的 评价铸瓷高嵌体修复严重缺损的年轻恒磨牙的临床效果。方法 选取牙体严重缺损的第一恒磨牙60颗,随机分为2组,分别进行树脂直接充填（树脂组）和铸瓷高嵌体修复（高嵌体组）。在修复后3、6、12、24个月检查两组患牙的修复体状态及咬合情况。按照改良USPHS/Ryge标准对修复体进行评价,使用T-Scan Ⅲ咬合分析系统进行咬合分析,记录牙龈状况和邻接关系恢复情况。结果 治疗后12个月,两组边缘适合性评分的差异有统计学意义,高嵌体组的A级多于树脂组（P<0.05）。治疗后12和24个月,两组表面光滑度评分的差异有统计学意义,高嵌体组的A级多于树脂组（P<0.05）。树脂组的患牙与对侧同名牙力百分比的差异均有统计学意义,患牙平均力百分比低于对侧同名牙（P<0.05）;而高嵌体组的患牙与对侧同名牙力百分比的差异均无统计学意义（P>0.05）。两组的牙龈状况和食物嵌塞情况均无明显差异（P>0.05）。结论 在本研究条件下,高嵌体组在修复体边缘适合性和表面光滑度方面,成功率较树脂组高,咬合力恢复也较树脂组更佳。在修复牙体严重缺损的年轻恒牙时,铸瓷高嵌体修复可作为推荐方案之一,有较好的修复效果。     

铸瓷高嵌体修复牙体严重缺损的年轻恒磨牙的效果分析

目的 评价铸瓷高嵌体修复严重缺损的年轻恒磨牙的临床效果。方法 选取牙体严重缺损的第一恒磨牙60颗,随机分为2组,分别进行树脂直接充填（树脂组）和铸瓷高嵌体修复（高嵌体组）。在修复后3、6、12、24个月检查两组患牙的修复体状态及咬合情况。按照改良USPHS/Ryge标准对修复体进行评价,使用T-Scan Ⅲ咬合分析系统进行咬合分析,记录牙龈状况和邻接关系恢复情况。结果 治疗后12个月,两组边缘适合性评分的差异有统计学意义,高嵌体组的A级多于树脂组（P<0.05）。治疗后12和24个月,两组表面光滑度评分的差异有统计学意义,高嵌体组的A级多于树脂组（P<0.05）。树脂组的患牙与对侧同名牙力百分比的差异均有统计学意义,患牙平均力百分比低于对侧同名牙（P<0.05）;而高嵌体组的患牙与对侧同名牙力百分比的差异均无统计学意义（P>0.05）。两组的牙龈状况和食物嵌塞情况均无明显差异（P>0.05）。结论 在本研究条件下,高嵌体组在修复体边缘适合性和表面光滑度方面,成功率较树脂组高,咬合力恢复也较树脂组更佳。在修复牙体严重缺损的年轻恒牙时,铸瓷高嵌体修复可作为推荐方案之一,有较好的修复效果。     

两种材质改良高嵌体/冠修复中重度后牙缺损的疗效研究

目的:比较两种不同材质的牙色改良高嵌体/冠修复中重度后牙缺损的临床疗效。方法:对46名患者51颗中重度缺损后牙分别采用CAD/CAM氧化锆全瓷改良高嵌体(冠)(A组)及钴铬烤瓷改良高嵌体/冠(B组)修复,在修复后12、24个月分别进行回访观察,比较其修复效果。结果:B组有1例在24个月回访时发现边缘瓷层崩瓷,边缘密合度增加,修复体未见损坏、松动,患牙未见继发龋及折裂,7颗修复体与患牙或邻牙颜色轻度不匹配。A组有3颗修复体与患牙或邻牙颜色轻度不匹配,其余未见异常。结论:两种不同材质的牙色改良高嵌体/冠用于中重度后牙缺损的修复效果均较理想,兼顾了修复体的强度与美观, 在选好适应症的情况下,简化了疗程,且临床疗效较好,但由于本研究观察期较短,远期效果有待进一步观察。     

前牙氧化锆全瓷翼板粘接桥的短期临床观察

目的 探索应用计算机辅助设计和计算机辅助制造（CAD/CAM）氧化锆全瓷翼板粘接桥修复单颌1～2颗前牙缺失的方法,观察其短期的临床修复效果。方法 实验流程为：收集临床资料,明确纳入标准;设计方案;牙体预备;技工室制作;试戴及粘接;随访。结果 共制作氧化锆全瓷翼板粘接桥5件,其中,单翼板式粘接桥2件,双翼板式粘接桥3件,平均观察6个月。在复诊检查结果中,5件氧化锆全瓷翼板粘接桥无变色、折裂、松动、脱落等情况发生,修复体边缘密和性良好,基牙无边缘着色、继发龋等发生,5件修复体均被评定为A级。结论对于单颌1～2颗前牙缺失的患者,采用CAD/CAM氧化锆全瓷翼板粘接桥修复可以取得较好的短期临床修复效果,但其粘接强度能否满足临床要求尚需进一步的观察。     

纤维强化树脂粘接桥在前牙种植过渡修复中的应用

目的评价纤维强化树脂粘接桥在前牙种植过渡义齿修复中的临床应用效果。方法1～2颗上前牙缺失的种植义齿修复患者,在种植体植入术后即刻应用强力纤维强化树脂夹板技术制作粘接式树脂过渡义齿,观察其临床效果。结果共完成21例,1例因咬合过紧、意外咬到硬物脱落,改用隐形义齿修复。其余均无松动脱落,持续至二期修复,最长观察13个月。观察期内临时义齿均出现不同程度变色,但患者对美学效果均感满意。结论纤维强化的粘接式树脂临时桥,美观、舒适、不影响伤口愈合,可满足前牙种植过渡修复的要求。     

A single-retainer zirconium dioxide ceramic resin-bonded fixed partial denture for single tooth replacement: a clinical report

This clinical report describes a treatment for the replacement of a missing mandibular anterior tooth using a cantilever single-retainer resin-bonded fixed partial denture (RBFPD), fabricated from zirconium dioxide (ZrO2) ceramic. No clinical complications were observed at the 2-year 6-month follow-up examination after placement of the ZrO2 ceramic RBFPD, and satisfactory functional and esthetic results were achieved. A treatment modality using a cantilever ZrO2 ceramic RBFPD is an alternative for single anterior tooth replacement. Further clinical studies are required to evaluate the long-term potential of cantilever single-retainer ZrO2 ceramic RBFPDs.     

Clinical long-term survival of two-retainer and single-retainer all-ceramic resin-bonded fixed partial dentures.

OBJECTIVES: All-ceramic resin-bonded fixed partial dentures (RBFPDs) were introduced as a conservative treatment approach 15 years ago. The purpose of this prospective study was to evaluate the long-term clinical survival of RBFPDs made with a conventional two-retainer design or a cantilever single-retainer design. METHOD AND MATERIALS: A total of 37 anterior RBFPDs were made from the glass-infiltrated alumina ceramic In-Ceram. Sixteen RBFPDs with a conventional two-retainer design were inserted in 14 patients, and 21 RBFPDs with a cantilever single-retainer design were inserted in 16 patients. Panavia or Panavia 21 were used as luting agents either after silica-coating and silanation or after air-abrasion only. Patients were recalled every year for a clinical examination to evaluate the restorations with regard to function and possible failures. The mean observation time in the two-retainer group was 75.8 months, and in the single-retainer group it was 51.7 months. RESULTS: No restoration debonded. In the two-retainer group, one restoration was lost because it fractured after 3 months at both connectors and one restoration was removed alio loco accidentally. Also in this group, four RBFPDs fractured within 15 months after insertion at one connector, but the pontic remained in situ as a cantilever RBFPD for several years. In the single-retainer group, only one FPD fractured and was lost 48 months after insertion. The 5-year survival rate was 73.9% in the two-retainer group and 92.3% in the single-retainer group. When unilateral fracture of a FPD was taken as criterion for failure, the five-year survival rate decreased to 67.3% in the two-retainer group. CONCLUSIONS: Cantilever all-ceramic resin-bonded fixed partial dentures made from high-strength oxide ceramics present a promising treatment alternative to two-retainer RBFPDs in the anterior region.     

Survival of anterior cantilevered all-ceramic resin-bonded fixed dental prostheses made from zirconia ceramic

Objectives

This study evaluated the clinical outcome of all-ceramic resin-bonded fixed dental prostheses (RBFDPs) with a cantilevered single-retainer design made from zirconia ceramic.

Methods

Forty-two anterior RBFDPs with a cantilevered single-retainer design were made from yttrium oxide-stabilized zirconium oxide ceramic. RBFDPs were inserted using Panavia 21 TC as luting agent after air-abrasion of the ceramic bonding surface.

Results

During a mean observation time of 61.8 months two debondings occurred. Both RBFDPs were rebonded using Panavia 21 TC and are still in function. A caries lesion was detected at one abutment tooth during recall and was treated with a composite filling. Therefore, the overall six-year failure-free rate according to Kaplan–Meier was 91.1%. If only debonding was defined as failure the survival rate increased to 95.2%. Since all RBFDPs are still in function the overall survival rate was 100% after six years.

Conclusions

Cantilevered zirconia ceramic RBFDPs showed promising results within the observation period.

Clinical Significance

Single-retainer resin-bonded fixed dental prostheses made from zirconia ceramic show very good mid-term clinical survival rates. They should therefore be considered as a viable treatment alternative for the replacement of single missing anterior teeth especially as compared to an implant therapy.     

Seven-year clinical performance of CEREC-2 all-ceramic CAD/CAM restorations placed within deeply destroyed teeth

Objectives

Adhesively luted all-ceramic restorations represent a promising way to preserve and stabilize weakened tooth substance, but little information is published about the clinical performance of extensive all-ceramic restorations.

Materials and methods

A total of 78 large CEREC 2? single-tooth all-ceramic restorations had been placed in 35 patients. After 7?years, 59 teeth in 25 patients were reevaluated according to USPHS or modified USPHS criteria regarding aesthetic properties, e.g., “anatomic form,” “color match,” and “marginal discoloration”; functional properties, e.g., “marginal integrity,” wear expressed by the criteria “proximal contact” and “static/dynamic occlusal relationship”; and biological properties, e.g., “tooth vitality” and “secondary caries”. Additionally, the “proportion of margin below/above cemento-enamel junction” was included.

Results

Two restorations had failed prior to the 7-year recall, one due to a bulk fracture of the restoration and one due to poor marginal integrity (rated “Charlie”) after 4?years. Other six restorations were rated as failure at the 7-year evaluation (three restorations revealed secondary caries, one was bulk fracture of the Cerec 2 restoration, and two failures were related to endodontic problems resulting in extraction or amputation of one root, respectively), resulting in a failure rate of 13.1% after 7?years. A total of 96.4% of the restorations revealed sufficient ratings for esthetic properties "anatomic form,” "color match,” "marginal discoloration,” and "marginal integrity".

Conclusions

The survival rate of 86.9% at the 7-year recall demonstrates that adhesively luted all-ceramic CAD/CAM-generated restorations are suitable for restoration of extended coronal defects.

Clinical relevance

CAD/CAM-generated all-ceramic restorations facilitate the reconstruction of deeply destroyed teeth irrespectively of the location of the cavity margins.     

针道辅助固位金属翼板粘接桥的临床初步观察

目的 观察针道辅助固位金属翼板粘接桥修复的临床短期效果.方法 对65例牙列缺损患者进行针道辅助固位金属翼板粘接桥修复,随访修复体固位和基牙健康状况.结果 65例患者共制作74件修复体,随访6～34个月,平均12.4个月.3件修复体松动、脱落,脱粘率为4%.基牙牙本质敏感9例(14%).结论 针道辅助固位可显著提高金属翼板粘接桥的短期成功率,获得良好的临床效果.其长期成功率尚需进一步观察.     

椅旁CAD/CAM(CEREC AC~(TM))全瓷修复的临床回顾性研究

目的评价椅旁CAD/CAM系统(CEREC AC~(TM))进行全瓷修复的临床效果。方法针对619例患者的667颗各类牙体缺损患牙采用西诺德的瓷睿刻系统(CEREC AC~(TM))进行临床即刻椅旁CAD/CAM全瓷修复,1年后对597例患者的603颗瓷睿刻修复体进行临床效果评价。采用USPHS修订版指标检查,包括美观——解剖形态、颜色匹配、边缘变色、表面质地;功能——边缘吻合性、磨耗(邻接、动静态咬合关系);生物学性能——牙髓活力、继发龋。结果 1年的随访结果发现,临床存留率达到95.11%,失败病例中修复体折裂占比为83%。93%的全瓷修复体表现出较高的美学评分,82%的修复体保持了较好的功能评分,而100%的修复体未见生物学并发症。结论不同牙体缺损患牙的瓷睿刻椅旁CAD/CAM全瓷修复,可获得理想的临床效果,但仍需长期随访。     

改良牙体预备的热压铸全瓷粘接桥2年临床观察研究

目的　观察临床中下颌前牙缺失2颗以内的患者,采用改良粘接桥牙体预备后,热压铸造全瓷粘接桥临床修复效果。方法　32位患者共制作32件双翼下前牙热压铸造全瓷粘接桥,修复后3个月、6个月、1年和2年观察修复体的完整性,基牙的继发龋,边缘着色。 结果　3个月和6个月内32例患者中未出现脱落和折断病例,1年内出现1例脱落患者,2年内出现2例脱落患者,但均通过处理后再次完成粘接继续使用,所有病例在2年的观察期内均未发生继发龋和边缘着色,其颜色与邻牙相协调。整体修复成功率为90.6%。 结论　下前牙2颗以内缺失患者,采用改良粘接桥牙体预备后,热压铸造全瓷粘接桥修复,可以取得较好的临床修复效果。     

前牙氧化锆全瓷粘接桥两年临床应用效果观察

目的 观察前牙氧化锆全瓷粘接桥的修复效果,为氧化锆全瓷粘接桥修复的适应证选择和临床应用提供参考.方法 选择23例单颌缺失1～2颗前牙的患者,进行单翼或双翼氧化锆全瓷粘接桥修复.随访时根据美国公共健康协会标准,观察粘接桥的完整性、边缘着色、继发龋和颜色匹配性.结果 共制作粘接桥29件,其中单翼粘接桥23件,双翼粘接桥6件.观察14～30个月,平均22个月.1件双翼粘接桥修复失败,2件单翼粘接桥修复失败.26件粘接桥无边缘着色,无继发龋,仅2件单翼粘接桥颜色偏白.粘接桥累积生存率为90%(26/29).结论 对单颌缺失1～2颗前牙的患者进行氧化锆全瓷粘接桥修复,可以达到恢复前牙美观和功能的效果.