Targis瓷聚体用于后牙嵌体修复的临床评价

目的 对Targis瓷聚体用于后牙嵌体修复进行临床评价。方法 采用口外间接法，用Targis瓷聚体对113例后牙进行嵌体及高嵌体修复，分别于6个月、12个月、18个月进行复查，采用改良的USPHS标准进行临床评价。结果 Targis瓷聚体嵌体修复的边缘密合性、色调协调性1边缘着色、继发龋、表面质地等几项指标在18个月后无显著性改变；患者敏感性在12个月后全部消失，与术后即刻相比有显著性差异。结论 口外间接法使用Targis瓷聚体可作为后牙嵌体修复的一种可行的方法。     

铸瓷高嵌体修复后牙牙体缺损的临床疗效分析

目的：将铸瓷高嵌体用于修复后牙牙体缺损,并做临床疗效分析。方法：用铸瓷高嵌体和合金高嵌体修复139颗后牙缺损,70颗做铸瓷高嵌体,69颗做钴铬合金高嵌体。修复后6、12、18个月复诊,分别进行临床评价。结果：6个月复查结果,边缘密合性具有统计学意义,其余项目无明显差别;12个月复查结果,边缘密合性同前。18个月复查,边缘密合性同前,邻接关系无差别,合金高嵌体对磨耗高于铸瓷高嵌体。结论：经过临床观察,对于边缘密合性而言,铸瓷高嵌体优于合金高嵌体。     

E-max铸瓷高嵌体修复后牙牙体缺损的临床研究

目的评价E-max铸瓷高嵌体修复磨牙和前磨牙牙体缺损的临床效果。方法使用E-max铸瓷高嵌体修复根管治疗后牙体缺损患牙共173颗,其中磨牙128颗,前磨牙45颗,并于修复后即刻及修复后1年、2年、3年进行临床随访,采用改良美国公共卫生机构评价标准进行临床效果评价。结果修复后1年、2年、3年的累计失访牙数为3颗、3颗、8颗。第3年时,复诊病例中无1颗发生高嵌体脱落;继发龋的发生率仅为0.6%（1/165）;牙体完整性也较为理想,除7颗边缘釉质崩裂外,无牙体折断发生;崩瓷或瓷裂发生率为3.0%（5/165）;颜色匹配性评级,与邻牙的颜色及半透明性一致、少许不一致的比例分别为90.3%（149/165）和9.7%（16/165）;边缘适合性和邻接点正常的比例均为97.0%（160/165）。结论采用E-max铸瓷高嵌体是修复根管治疗后牙体缺损较为可靠的一种方法。     

E-MAX玻璃陶瓷高嵌体修复无髓后牙牙体缺损短期效果观察

目的 探讨计算机辅助设计和计算机辅助制作玻璃陶瓷高嵌体修复无髓后牙牙体缺损的短期效果.方法 70例患者75颗后牙经完善根管治疗后,使用计算机辅助设计和计算机辅助制作E-MAX玻璃陶瓷高嵌体修复,12个月后复查边缘密合度、外形、表面质地、邻接关系及颜色匹配等指标.结果 随访12个月后,2例失访,73颗高嵌体修复体的边缘密合度、外形、表面质地、邻接关系及颜色匹配均良好.各项指标中A级、B级的病例数在修复后即刻和12个月后的差异无统计学意义(P>0.05),95%以上的病例达到了A级标准.结论 12个月的观察期内,E-MAX玻璃陶瓷高嵌体修复无髓后牙牙体缺损的固位及美学效果较好.     

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目的评价Ceramage聚合瓷高嵌体和多面嵌体修复后牙牙体缺损的临床效果。方法选择2005年1月至2008年1月于中国医科大学口腔医学院修复科就诊的后牙牙体缺损患者129例(患牙200颗),行Ceramage聚合瓷高嵌体和多面嵌体修复各100颗牙,于患者戴用修复体后6个月、1年、2年、3年,检查其形态、边缘适合性、颜色、周围龋、修复体磨耗程度、接点及折裂情况。结果200颗患牙修复后中共出现5颗失败,其中高嵌体修复体破损1颗、松动1颗、食物嵌塞2颗;多面嵌体修复体未发现有破损,1颗出现基牙折裂。结论Ceramage聚合瓷是一种很好的后牙牙体缺损修复材料;与高嵌体相比,多面嵌体保留了更多牙体组织,更有利于修复体力学或生物学的使用周期。     

两种分体桩高嵌体修复无髓磨牙牙体缺损的评价

目的:评价纤维分体桩超瓷高嵌体和金合金分体桩高嵌体修复无髓磨牙牙体缺损的临床效果.方法:用纤维分体桩超瓷高嵌体(n=64)和金合金分体桩高嵌体(n=35)修复牙冠过短且(牙合)龈高度过低、牙体一壁或多壁缺损至龈下1 mm以内无髓磨牙99 颗,修复后2 周、6 个月、18 个月随访,参照美国公共卫生署修正标准对临床修复效...     

IPS e.max牙合面瓷贴面修复后牙牙合面缺损的3年临床观察

目的:考察热压铸瓷牙合面瓷贴面在后牙缺损的短期临床效果。方法:对28例患者的35个后牙牙体缺损,包括18个重度磨耗活髓后牙和17个根管治疗术后牙合面牙体缺损后牙,采用热压铸瓷牙合面瓷贴面修复。根据改良USPHS修复体评价标准,分别于修复后完成当日和1、6、12、24、36个月对牙合面瓷贴面进行随访复查,结果采用χ²检验分析。结果:后牙热压铸瓷牙合面瓷贴面的修复体外形、边缘适合性、牙龈状况、继发龋和邻面接触点在观察期间表现良好。有2例下颌前磨牙牙合面瓷贴面在粘结2年后出现脱落,χ²检验分析修复体固位的A级成功率在6个时间节点间差异无统计学意义。36个月内各项评估A级成功率在90%以上。结论:热压铸瓷牙合面瓷贴面用于重度磨耗活髓后牙与根管治疗术后牙合面牙体缺损后牙短期修复效果良好,为后牙牙体缺损微创修复提供了一种方式,但其远期效果仍有待进一步观察。     

超瓷根帽结合磁性附着体在覆盖义齿中的临床应用

目的：观察Targis瓷聚体根帽结合磁性附着体用于牙列缺损患者的修复疗效。方法：49名患者制作58件磁性附着体,对义齿的固位、牙龈健康状况及衔铁有无脱落进行为期2年的随访观察。结果：磁性附着体磁力无削弱,义齿稳定性好。结论：Targis瓷聚体超瓷根帽结合Magfit磁性附着体能提高义齿的固位力,工艺学步骤简单,保护附着体的磁力不被削弱,可提高义齿的修复质量。     

铸瓷髓腔固位冠修复根管治疗后牙齿的临床效果评价

目的:评价IPS e. max Press铸瓷髓腔固位冠修复经根管治疗的后牙牙体缺损的效果。方法:选择由牙体牙髓专业一年级研究生完成的铸瓷髓腔固位冠修复病例26例,均为行完善根管治疗后的后牙,18~24个月后回访检查。参考美国公共健康服务(USPHS)标准,对患牙继发龋、牙龈炎、牙折、修复体边缘完整性、边缘染色、修复体折裂/脱落情况进行评估。结果:26例病例中,1例修复体折裂,2例边缘完整性轻度受损,1例咬合面轻度缺损,其余未发现明显修复体的缺陷或因修复体引起的牙体、牙周等问题。结论:铸瓷髓腔固位冠修复根管治疗后的后牙牙体缺损可以取得满意的效果。     

无髓后牙全瓷高嵌体修复的研究进展

无髓后牙的微创修复是临床研究的一个热点,近年来,随着粘接技术及全瓷材料的发展,高强度全瓷高嵌体因其微创、美观、对机械固位要求较低等优势,在后牙根管治疗后的修复中应用逐渐广泛。本文从材料、牙体预备、粘接及其临床应用注意事项等方面,对全瓷高嵌体在无髓后牙牙体缺损修复中的应用进展进行综述,以期为临床工作提供参考。     

Short-term clinical evaluation of inlay and onlay restorations made with a ceromer

PURPOSE: This prospective clinical trial evaluated the clinical acceptability of a new material, ceromer, used for inlay and onlay restorations in single- or multisurface cavities of posterior teeth. MATERIALS AND METHODS: Forty-three Targis inlay and onlay restorations were placed in 25 patients and evaluated using the United States Public Health Service criteria. The laboratory work was conducted by three dental technicians according to the manufacturer's recommendations. Twenty-five restorations were luted with Syntac bonding system and Variolink II, and 18 were luted with Scotchbond Multi Purpose and Opal Luting Composite. The recalls were done at 6, 12, and 18 months. Restorations were evaluated for six parameters and scored as ideal (A), clinically acceptable (B), or clinically unacceptable (C). RESULTS: Indirect restorations received, after 18 months, scores of A at the following rates: color match 77%; marginal discoloration 93%; secondary caries 100%; anatomic form 93%; and marginal integrity 95%. For these parameters, statistical analysis indicated no significant differences at baseline and after 18 months. Postoperative hypersensitivity was reported by seven patients at baseline, but it decreased and there was no hypersensitivity at 12- and 18-month follow-ups. CONCLUSION: Over an 18-month period the Targis restorative system yielded good clinical service.     

超瓷材纤维嵌体在后牙牙体缺损修复中的应用

目的探讨超瓷材纤维嵌体修复后牙牙体缺损的效果。方法选择牙体缺损较大,经完善根管治疗的后牙158颗,随机分为两组,试验组制作超瓷材纤维嵌体,对照组制作瓷嵌体,追踪现察3年,采用美国公共卫生署修复体临床评价标准对嵌体进行疗效评价。结果修复后1年,试验组和对照组嵌体修复成功率分别为91.25%和91.03%,差异无统计学意义（χ2=3.405,P〉0.05）。修复后3年,试验组的成功率为88.61%,对照组的成功率为72.37%,差异有统计学意义（χ2=5.283,P〈0.05）。结论对后牙牙体缺损,超瓷材纤维嵌体是保护牙体较理想的修复方法。     

Targis/Vectris 瓷聚体/玻璃纤维强化树脂修复体的临床评价

目的对Targis/Vectris修复体的疗效进行临床评价。方法对102例Targis/Vectris修复体进行随访并分别于术后1、3、6及12个月复查，用改良的USPHS临床评价标准评价。结果Targis/Vectris修复体的边缘适合性、颜色及表面质地等在12个月内无明显改变，其累计成功率达93.1%。结论Targis/Vectris修复体的疗效在短期内切实可靠。     

后牙超瓷聚体嵌体3年临床疗效观察

目的:观察后牙超瓷聚体嵌体的临床疗效。方法:前磨牙及磨牙Ⅰ类洞患者345例,随机分为2组:超瓷聚体嵌体组170例(前磨牙42颗,磨牙128颗),复合树脂嵌体组175例(前磨牙45颗,磨牙130颗)作为对照。随访3年后,从边缘着色、边缘密合度、解剖形态、基牙继发龋、修复体折裂、颜色匹配等方面进行比较,采用χ2检验进行统计学处理。结果:超瓷聚体嵌体组获得随访166例、复合树脂嵌体组获得随访169例,超瓷聚体嵌体组边缘着色2例、边缘密合158例、外形完整162例、基牙继发龋1例、修复体折裂5例、颜色匹配161例;复合树脂嵌体组边缘着色27例、边缘密合134例、外形完整150例、基牙继发龋20例、修复体折裂5例、颜色匹配146例。超瓷聚体嵌体组在边缘着色、边缘密合度、外形完整、基牙继发龋、颜色匹配等方面优于复合树脂嵌体(P<0.05),但在修复体折裂方面无显著差异(P>0.05)。结论:超瓷聚体嵌体是一种较好的新型牙体修复体。     

Margin quality of titanium and high-gold inlays and onlays--a clinical study.

OBJECTIVES: Unalloyed titanium may be an economical substitute for gold alloys. The purpose of this study was to evaluate the suitability of unalloyed titanium as an alternative to gold alloys for posterior inlay and onlay restorations. METHODS: Fifty-four patients received 99 titanium restorations, 56 patients 96 gold alloy restorations. All titanium restorations were cast in a vacuum-pressure casting machine. Two weeks after insertion the clinical margin integrity was evaluated by replica technique. The maximum marginal gaps were assessed under the optical measuring microscope. The two tailed t-test for independent samples was used for statistical analysis. RESULTS: Accuracy of fit was significantly better in gold alloy than in titanium restorations. Mean maximum marginal gap between restoration margin and tooth structure were 72 +/- 18 microns (mean +/- S.D.) for titanium and 64 +/- 18 microns (mean +/- S.D.) for gold restorations. SIGNIFICANCE: Though marginal gap widths in titanium restorations did not yet match the gold standard, the data justify the use of titanium as an alternative to gold alloy for inlay and onlay restorations.     

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。     

Clinical performance and marginal adaptation of class II direct and semidirect composite restorations over 3.5 years in vivo

OBJECTIVE: The study evaluated the clinical performance and marginal adaptation of direct and semi-direct class II composite restorations in a split-mouth design over 3.5 years. DESIGN: 44 upper posterior teeth in 11 adults with primary carious lesions were treated with 22 direct and 22 semi-direct restorations. Conventional cavities were prepared for both types of restorations. A fine fine hybrid composite (APH) and a multifunctional adhesive system (Prisma universal bond 3) were used for all restorations. The incremental "3-sited light curing" technique was applied to direct restorations. Semi-direct inlays were prefabricated on silicone casts and post-cured using light and heat. Clinical performance was evaluated using modified USPHS parameters, while marginal adaptation was judged on replicas, using SEM and a standardized evaluation technique. RESULTS: Clinical results after 3.5 years revealed a 100% retention rate with no fractures, sensitivity or recurrent caries for both types of restorations. SEM-evaluation of the occlusal margins showed at the tooth-restoration interface relatively low rates of marginal openings over the observation period (4-8%). Marginal restoration fractures ranged between 1 and 2%, marginal tooth fractures between 3 and 9%. Differences between the restorative techniques and after the different time observation periods were not statistically significant. Proportions of marginal fractures and openings at the restoration-luting composite interface were less than 10% after 3.5 years. CONCLUSION: The results indicated no significant differences for direct and semi-direct fine hybrid composite restorations in medium size cavities in posterior teeth with respect to clinical performance and marginal adaptation over 3.5 years.     

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??Objective    To observe clinical effect of CEREC AC all ceramic onlay minimally invasive restorations. Methods    Totally  sixty-six patients with 84 all ceramic onlay restorations were involved in the study??After 3 months?? 6 months and 12 months??the clinical effect of the restorations was evaluated by examiners using modified USPHS criteria. Results    All restorations scored B using modified USPHS criteria except for one broken??No onlay came off. Conclusion    CEREC AC all ceramic onlay restoration has good short-term effect on posterior residual tooth??     

Composite versus amalgam restorations

In a clinical study the behaviour of posterior composite restorations was evaluated. For the study, 232 Class I or II restorations in premolars and molars were made by three operators in a group of forty-nine adult patients. Each patient underwent one or two series of four restorations. The materials within a series were a strontium glass filled composite (Profile), a microfilled composite (Estic MF), a macrofilled composite (Adaptic Radiopaque) and a high copper amalgam (Dispersalloy). The last two materials served as a negative and positive controls respectively. For a period of 3 years the clinical behaviour was evaluated yearly with the USPHS criteria (anatomic form, marginal adaptation, colour match, marginal staining and caries). Differences in the ratings of the criteria between materials, tooth type and evaluation year were tested statistically for significance. The number of restorations replaced after 3 years in clinical service was eight (= 3.6%). The results showed that the material, tooth type and evaluation year all have an influence on the anatomic form and the colour match of the restoration. The behaviour of the three composites with respect to colour match, marginal adaptation and marginal staining was acceptable. For anatomic form, however, only the behaviour of the microfilled composite Estic MF was still acceptable after 3 years.     

Four-year clinical evaluation of posterior resin-based composite restorations placed using the total-etch technique

Purpose : To report the 4-year clinical performance of posterior resin-based composite restorations placed using the total-etch technique.
Materials and Methods : Over a period of 1 year, 726 restorations (248 molars, 478 premolars; 260 Class I, 466 Class II; 540 replacements, 186 primary decay) were placed on conservative preparations, using the incremental placement technique in a clinical environment. Baseline data were collected, and the restorations were evaluated after 4 years. Z100 and Scotchbond Multipurpose (SBMP) (3M Dental Products, St. Paul, Minnesota) were used as the restorative system. The criteria evaluated were color match, marginal adaptation, anatomic form, cavosurface marginal discoloration, axial contour, interproximal contact, secondary caries, postoperative sensitivity, and tooth vitality.
Results : At baseline, 24% of the teeth restored presented postoperative sensitivity; 86% of the sensitive teeth were from the replacement group. At 4 years, all teeth were vital to cold test. Eighteen restorations (2.5%) presented clinically detectable marginal fracture. The shade was acceptable in all restorations. Cavosurface marginal discoloration was observed in 47 restorations (6.5% bravo scores). Axial contour, interproximal contact, and marginal adaptation received 100% alfa scores. No secondary caries was diagnosed in any of the teeth examined. None of the examined restorations required replacement.
CLINICAL SIGNIFICANCE
Under controlled clinical conditions, posterior resin-based composite restorations placed with the total-etch technique and restorative Z1OO/SBMP have the potential to present a high success rate at 4 years. None of the examined restorations required replacement, and there was no clinically detectable wear in any of the restorations. Simultaneous etching of enamel and dentin followed by the application of a resin adhesive can be considered an adequate modality of pulp protection in nonexposed tooth preparations.