圆锥型套筒冠义齿修复牙周炎伴牙列缺损的临床效果观察

目的评价圆锥型套筒冠义齿修复牙周炎伴牙列缺损的临床效果。方法牙周炎伴牙列缺损患者共11例,行牙周基础治疗和根管治疗后,共制作15件圆锥型套筒冠义齿,随访1～2年,临床及X线检查,记录患者的主观感觉及义齿使用情况。结果内冠脱落2个（3.1%）,基牙折断1颗（1.6%）,牙龈炎2例（18.2%）,及时行相应处理后,义齿均可正常使用。患者主观感觉满意,基牙松动度降低,X线片未见修复后基牙牙槽骨有进一步吸收。结论对牙周炎伴牙列缺损,圆锥型套筒冠义齿是一种可行、有效的修复方法。     

圆锥型套筒冠义齿修复牙周炎伴牙列缺损护理体会

目的 探讨应用圆锥型套筒冠义齿修复牙周炎伴牙列缺损的护理体会.方法 配合医生完成34例牙周炎伴牙列缺损患者的圆锥型套筒冠义齿修复,共223颗基牙.修复前做好患者的心理护理、用物准备和环境准备；治疗中配合医生完成牙体预备、制取印模及粘固内冠；治疗后对患者进行口腔卫生宣教和使用圆锥型套筒冠义齿的指导.嘱患者完成治疗后12个月复诊.结果 修复后12个月复诊,34例患者均对治疗满意、了解自身的牙周情况及维护方法.223颗基牙,内冠脱落率为0.9％( 2/223),牙龈炎发生率为5.4％( 12/223),无基牙脱落及龋坏.结论 规范的椅旁修复护理,对患者进行口腔健康教育,使患者重视治疗后的定期牙周维护,有助于提高牙周炎伴牙列缺损患者应用圆锥型套筒冠义齿的远期效果.     

缓冲型套筒冠义齿用于中重度牙周病老年患者的临床观察

目的观察套筒冠义齿修复中重度牙周病伴牙列缺损的老年患者的临床疗效。方法:临床追踪观察10例中重度牙周病伴牙列缺损的老年病例,患牙经过牙周基础治疗和根管治疗后,共制作12副套筒冠义齿,共65颗基牙,其中Ⅰ度松动21颗,Ⅱ度松动37颗,Ⅲ度松动7颗。内冠设计为圆锥型或圆柱状,使用钴铬合金制作套筒冠内外冠。平均随访2.5年,观察基牙牙周状态、牙松动度以及影像学改变。结果:所有患者的基牙松动度降低。X线片显示修复后基牙牙周膜无明显增宽,骨小梁致密,排列整齐,骨质密度明显增高。牙槽骨高度未见降低,部分可见增高。结论:根据基牙状态设计圆锥型或圆柱状套筒冠义齿对中重度牙周病伴牙列缺损是一种较理想的修复治疗方法。     

圆锥型套筒冠义齿修复牙列缺损的疗效观察

对29件圆锥型套筒冠义齿(108颗基牙)修复牙列缺损后6、12、18个月的基牙牙体牙周状况、义齿固位力情况、咀嚼效能进行检查。1颗基牙折断,3颗基牙内冠脱落,10颗基牙出现牙龈炎,其余义齿使用固位及咀嚼效能良好,牙周无异常。因此,圆锥型套筒冠义齿是修复牙列游离端缺损较理想的方法,但制作中应严格掌握适应证,严格按照制作要求进行加工,才能取得良好的疗效。     

不同材质套筒冠义齿修复轻中度牙周病伴牙列缺损的临床观察

目的：比较三种不同修复材料套筒冠义齿修复轻中度牙周病伴牙列缺损病例的临床疗效.方法：15例轻中度牙周病伴牙列缺损患者,进行完善根管治疗及牙周基础治疗后设计制作21副圆锥型套筒冠义齿,其中11副使用钴铬合金内外冠固位,6副使用金沉积内外冠固位,4副使用氧化锆内冠及金沉积外冠固位.基牙共105颗,其中Ⅰ度及Ⅱ度松动牙85颗.随访3年比较修复前后基牙牙周探诊深度（PD）,基牙松动度,患者满意度.结果：15例患者共21副圆锥型套冠义齿使用良好,牙齿松动度及牙周探诊深度变小（P＜0.05）,患者满意度明显高于卡环式可摘局部义齿.义齿使用2年后3例钴铬合金套筒冠义齿和1例金沉积套筒冠义齿固位力下降,而4例氧化锆内冠及金沉积外冠套筒冠义齿固位良好,无下降趋势.结论：不同材料的套筒冠义齿对轻中度牙周病伴牙列缺损病例具有良好的临床疗效.利用氧化锆内冠和金沉积外冠固位的套筒冠义齿持久固位力优于金沉积套筒冠义齿,更明显优于钻铬合金套筒冠义齿.     

套筒冠义齿修复牙周病伴牙列缺损的临床应用研究

目的探讨套筒冠义齿修复牙周病伴牙列缺损的临床疗效。方法20例牙周病患者经牙周综合治疗病情稳定后进行套筒冠义齿修复,共制作套筒冠义齿24件,基牙共计146颗,其中松动牙81颗;比较分析牙周病伴牙列缺损患者修复前,修复后3、6、12个月基牙松动度、牙龈指数、牙周袋、牙槽骨高度、牙周膜宽度和硬骨板的丧失,并进行问卷调查。结果20例牙周病患者经修复治疗后,随着时间的推移,牙松动度减低,牙龈指数改善,牙周袋变浅,X线片显示基牙的牙周膜和骨硬板清晰完整,牙槽骨边缘高度未再见降低,骨密度明显增加,随访问答结果显示,患者的咀嚼功能显著提高,患者对义齿比较满意。结论套筒冠义齿修复牙周病伴牙列缺损具有良好的临床疗效。     

套筒冠义齿对中重度牙周病伴牙列缺损修复的临床效果

目的:观察中重度牙周病伴牙列缺损病人采用圆锥犁套筒冠义齿修复治疗前后基牙牙周组织变化情况,了解其临床疗效.方法:选择20例中重度牙周病伴牙列缺损的病例.患牙经过牙周基础治疗和根管治疗后,采用圆锥型套筒冠义齿修复,共制作26副圆锥型套简冠义齿.基牙共149个,其中I度松动25个,Ⅱ度松动113个,Ⅲ度松动11个.平均随访3.5年,)观察基牙菌斑指数、牙龈指数、牙周袋深度、牙松动度以及影像学改变,并通过问卷调查义齿戴入后病人的:主观感受.结果:20例中重度牙周病伴牙列缺损的病例,基牙松动度降低,牙周袋变浅,牙周组织的健康情况得到显著改善,病人主观感觉满意.结论:采用圆锥型套筒冠义齿修复治疗中重度牙周病伴牙列缺损是一种较理想的方法.     

圆锥型套筒冠修复牙列缺损的临床应用

目的探讨圆锥型套筒冠义齿修复牙列缺损的要点。方法牙体预备制作内冠,内冠试牙合后取印模,制作外冠和修复体,义齿初戴时再对内冠、外冠和修复体进行试牙合,合适后直接将内冠粘固固定。结果47例牙列缺损患者采用套筒冠义齿修复,效果满意。结论圆锥型套筒冠义齿是修复牙列缺损较理想的方法之一。     

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目的观察截冠术与套筒冠覆盖义齿联合应用修复重度牙周炎患者牙列缺损的效果。方法对2005年3月到2006年3月武警广东公安边防总队医院口腔科收治的7例患重度牙周炎的牙列缺损患者,共51颗基牙,行牙周基础治疗和根管治疗后截冠,再按套筒冠的制作程序制作套筒冠覆盖义齿,随访观察。结果经过3年的随访观察,所有患者均主观评价义齿美观舒适,固位良好,咀嚼功能显著提高;临床检查7例患者的51颗基牙动度明显降低,所有基牙的动度在I度以内;X线检查患者基牙周围牙槽骨在修复后无明显吸收,牙周膜无明显改变,缺牙区牙槽骨无明显吸收。结论截冠术和套筒冠覆盖义齿联合应用是目前重度牙周炎患者牙列缺损的理想修复方法。     

摩擦型套筒冠应用于重度牙列缺损：5年临床疗效观察

对于每个牙弓只余留1～3颗牙的重度牙列缺损患者．摩擦型套筒冠可摘局部义齿的临床疗效尚未被充分证明。现有74位重度牙列缺损患者接受82件套筒冠可摘局部义齿修复．共由173个摩擦型套筒冠所支持。根据记录。套筒冠基牙60个月以上存留率为80．6％．其中性别、基牙活力及基牙松动度显著影响基牙存留率（Kaplan—Meier法）。而套筒冠丢失风险则明显与患者性别、套筒冠所在牙弓、基牙活力和基牙分布有关（COX回归分析）。本研究纳入的患者群体中．套筒冠可摘局部义齿被证实为重度牙列缺损的良好治疗方法。     

38例圆锥形套筒冠义齿病例临床回顾

目的：总结圆锥形套筒冠义齿修复的临床疗效。方法：对38例戴用圆锥形套筒冠义齿病例的基牙牙冠、牙周、周围软组织、上部修复体及患者满意度等情况进行调查,对调查结果进行统计学分析。结果：46副套筒冠义齿保存率100％。共245个基牙,其中基牙保存、内冠脱落再粘结、牙龈炎症、饰面材料崩裂修理及着色分别占总基牙数的93．9％、7．8％、14．3％、14．3％及47．9％。修复体固位欠佳及基托折裂分别占总修复体数的13．0％及10．75％。患者对义齿美观和功能的满意率为97．8％。结论：戴用圆锥形套筒冠义齿后,患者对美观和咀嚼功能满意度高,尽管套筒冠义齿的内冠脱落、饰面材料崩裂、基托折裂、基牙脱落等为常见症状,但通过修理一般不影响义齿的继续使用。     

Long-term analysis of telescopic crown retained removable partial dentures: survival and need for maintenance

OBJECTIVES: The aim of this retrospective longitudinal study was to evaluate the clinical long-term survival of telescopic crown retained removable partial dentures (TRPDs), the influencing factors on survival as well as the type and number of necessary treatments during the observation time. METHODS: The study is based on the data of 463 patients who had received a total of 554 TRPDs with a total of 1758 telescopic crowns between 1995 and 2004 in our Dental School. The influence of the patient's gender, location of the denture, number of abutment teeth per telescopic denture, their distribution (Kennedy-class) and the impact of a routinely follow-up programme on the survival probability were analysed. RESULTS: During the observation period (mean 5.3+/-2.9 years) 4.7% of the TRPDs ceased functioning and 3.8% of the abutment teeth were extracted. The survival probability after 5 years was 95.1% for the TRPDs and 95.3% for the abutment teeth. No denture with more than four abutments required replacement. Only the covariates number of abutment teeth and patient in-follow-up showed a significant (p<0.01) influence on the survival probability. 26.9% of the TRPDs needed facing repairs, 34.8% relines, 20.6% loss of cementation of a primary crown and 1% abutment tooth treatment. CONCLUSIONS: Within the limits of a retrospective study it can be concluded that the number of attachments and thorough aftercare have a considerable impact on the long-term success of TRPDs. Though loss of cementation and defects of the facings were significant in number, they did not endanger the long-term success of a TRPD at all.     

Long-term results of telescopic crown retained dentures--a retrospective study

The clinical data for 250 telescopic crown retained dentures involving 617 abutment teeth preparations were collected and analysed in a retrospective study to ascertain the survival rate of the dentures and their abutment teeth. During the study period 10.6% of the abutment teeth had to be extracted. An increased number of telescopic crowns significantly improved the longevity of the prostheses and their associated abutment teeth in most denture designs, but this was not found to be the case with bilateral free-end saddle designs without an anterior bounded saddle. The use of more than four abutment teeth did not result in a higher survival rate.     

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目的了解慢性牙周炎患者磁性附着体基牙的牙周状况。方法选取2009年1月至2011年1月于中国医科大学附属口腔医院口腔修复门诊接受治疗的19例慢性牙周炎患者的45颗磁性附着体基牙作为研究对象,修复后随访观察3年,比较磁性附着体基牙在义齿修复前后的牙周袋探诊深度（PD）、牙齿松动度及义齿的稳定性状况。结果磁性附着体基牙在1：2内3年的存留率达91．11％。磁性附着体基牙在义齿修复前及修复3年后的PD值分别为（2．17±0．77）mm和（1．89±O．67）rnm,修复后较修复前的PD值减小,差异有统计学意义（P〈0．05）。部分基牙松动度在义齿修复3年后较修复前增大,可能与可摘局部义齿功能稳定性变差有关（P〈0．05）。结论磁性附着体义齿对慢性牙周炎患者的弱基牙有保护作用。     

慢性牙周炎患者磁性附着体基牙牙周状况分析

目的 了解慢性牙周炎患者磁性附着体基牙的牙周状况。方法 选取2009年1月至2011年1月于中国医科大学附属口腔医院口腔修复门诊接受治疗的19例慢性牙周炎患者的45颗磁性附着体基牙作为研究对象,修复后随访观察3年,比较磁性附着体基牙在义齿修复前后的牙周袋探诊深度（PD）、牙齿松动度及义齿的稳定性状况。结果 磁性附着体基牙在口内3年的存留率达91.11%。磁性附着体基牙在义齿修复前及修复3年后的PD值分别为（2.17 ± 0.77）mm和（1.89 ± 0.67）mm,修复后较修复前的PD值减小,差异有统计学意义（P < 0.05）。部分基牙松动度在义齿修复3年后较修复前增大,可能与可摘局部义齿功能稳定性变差有关（P < 0.05）。结论 磁性附着体义齿对慢性牙周炎患者的弱基牙有保护作用。     

Tooth-supported telescopic crown-retained dentures: an up to 9-year retrospective clinical follow-up study

PURPOSE: This study evaluated outcome and quality of treatments with telescopic crown-retained dentures. MATERIALS AND METHODS: A total of 72 subjects (27 men and 45 women; mean age 67 years) wearing 75 telescopic crown-retained dentures (18 in the mandible and 57 in the maxilla) participated in the study. There were a total of 368 abutment teeth, 272 in the maxilla and 96 in the mandible. Each patient was clinically examined. Using the CDA evaluation system, four calibrated evaluators also examined, independently, the inner crowns for margin integrity and the superstructure for retention, occlusion, stability, wear, and esthetic appearance. Observer consistency was measured with Cohen's kappa. RESULTS: The observation period varied from 9 months to 9.3 years (mean 3.8 years). One telescopic crown-retained denture was lost, and 24 abutment teeth (7%) were extracted during the observation period. In 49 abutment teeth (13%), technical complications had occurred, and a total of four framework fractures (5%) were observed. Based on the CDA criteria, most of the characteristics were evaluated as satisfactory. The characteristics "condition of denture-supporting soft tissue" and "superstructure wear" showed the highest frequencies of not acceptable ratings, 44% and 45%, respectively. CONCLUSION: In this retrospective follow-up study, satisfactory outcome was found for tooth-supported telescopic crown-retained dentures over a mean observation period of 3.8 years.     

Clinical longevity of removable partial dentures retained by telescopic crowns: outcome of the double crown with clearance fit

PURPOSE: It was the aim of this study to investigate the long-term success of a telescopic crown system that can be used for both rigid and resilient support and to evaluate by means of a literature review whether the use of resilient support may be advantageous compared to other double crown systems when the restoration is placed on only a few remaining teeth. MATERIALS AND METHODS: Patient records were used to evaluate 125 dentures (with 460 abutment teeth) based on the Marburg double crown system. The loss of abutment teeth, endodontic treatment, and fracture of the metallic framework were investigated with regard to the different types of denture support. RESULTS: The probability that a patient would have kept all abutment teeth was 84% after 5 years and 66% after 10 years. No significant differences were found for the two groups "resilient support" (< or = three abutment teeth) and "rigid support" (> or = four abutment teeth). For abutment teeth with a double crown with clearance fit, the risk of loss was 4% after 5 years and 15% after 10 years for rigid support, and 10% and 24%, respectively, for resilient support. The risk of endodontic treatment was 7% after 5 years and 9% after 10 years for rigid support, and 3% and 7%, respectively, for resilient support. None of the denture frameworks showed a fracture during the observation period. CONCLUSION: Removable partial dentures retained by double crowns with clearance fit and constructed without major or minor connectors provide good clinical longevity. The survival rates of abutment teeth were comparable to those reported in the literature for other double crown systems. There was no significant increase of the risk of abutment loss when the restoration was placed on three or fewer remaining teeth and the concept of resilient support was applied.     

Prosthetic Rehabilitation of a Marginally Resected Mandibular Arch With a Metal Reinforced Telescopic Overdenture

Success of the prosthesis after mandibular resection is related directly to the amount of the remaining bone and soft tissue present. The prognosis for mandibulectomy patients becomes less favorable as the size of the resection increases. Prosthetic rehabilitation for such patients is a challenge for clinicians. Without preprosthetic reconstructive surgery, denture fabrication for mandibulectomy patients becomes extremely difficult. Telescopic dentures is a modality of treatment consisting of an inner or primary telescopic coping which is permanently cemented to an abutment and an outer or secondary telescopic coping which is attached to the prosthesis. These copings protect the abutment from dental caries and thermal irritations and also provide retention and stabilization of the secondary coping. The secondary coping engages the primary copings to form a telescopic unit and it provides retention and stability to the prosthesis. This clinical report aims at utilizing the remaining natural teeth for a mandibular overdenture with telescopic coping.     

Dental implants as strategic supplementary abutments for implant-tooth-supported telescopic crown-retained maxillary dentures: a retrospective follow-up study for up to 9 years

PURPOSE: The aim of this retrospective study was to present the results of implants and natural teeth used as combined abutments to support maxillary telescopic prostheses. MATERIALS AND METHODS: Between 1997 and 2004, 22 patients with residual maxillary teeth underwent prosthodontic rehabilitation with supplementary implant placement of implant-tooth-supported telescopic prostheses. A total of 60 supplementary implants (mean: 2.9 implants; SD: 1.6; range: 1 to 5 per patient) were placed in strategic position and connected with 48 natural abutment teeth (mean: 2.2 teeth; SD: 0.9; range: 1 to 4 per patient) using telescopic crowns. The follow-up registration included implant and natural tooth survival rates and peri-implant and periodontal parameters, along with prosthodontic maintenance. Natural tooth abutments were additionally followed to compare their periodontal parameters at baseline to the follow-up examination. RESULTS: After a mean of 38 months (12 to 108 months) no implants or natural tooth abutments were lost (survival rate: 100%). There was no fracture, endodontic treatment, loss, or intrusion of natural teeth used for telescopic abutments. Implant abutments showed high stability and excellent periimplant soft tissue conditions. Natural tooth abutments used for double crowns also showed uneventful progress. A low rate of prosthodontic maintenance was seen, with implant screw abutment loosening as the most severe complication (3 of 60 implants; 5%). CONCLUSIONS: On the basis of this retrospective clinical review, the following conclusions were drawn: (1) successful function over a prolonged period and a minor complication rate of implant-tooth-supported telescopic maxillary dentures may be anticipated, and (2) the great variety of treatment modalities offered by tooth-implant support for telescopic prostheses appears to be useful as a treatment option for the maxilla in elderly patients.