四种瓷修补系统的树脂色调与金属烤瓷修复体色调的匹配性研究

目的 比较树脂与金属烤瓷瓷面的色调差异,观察4种瓷修补系统的树脂色调与金属烤瓷修复体色调的匹配性.方法 采用正交设计,通过检测4种崩瓷修补系统色调与相应厚度瓷层的色调匹配性,评价不同口内瓷修补系统、树脂层厚度、金属底色、树脂色调4个影响因素对崩瓷修复效果的影响.结果 瓷修补系统、树脂层厚度和树脂色调对树脂和瓷层的色调匹配性均有影响,其影响程度依次为树脂色调、瓷修补系统、树脂层厚度.结论 树脂色调是影响瓷修补效果的主要因素,其次是不同的瓷修补系统,树脂层厚度的影响最小.     

前牙金属烤瓷修复体崩瓷后复合树脂修补2年观察

金属烤瓷修复体色泽美观 ,性能稳定 ,能很好地恢复缺失牙的形态和功能 ,目前已广泛应用于牙体缺损和牙列缺损的修复 ,但由于陶瓷韧性差、脆性大 ,当操作设计不良或患者使用不当时 ,均可能导致崩瓷。崩瓷后最理想的处理办法是重新制作 ,但口内直接修补崩瓷提供了一条更经济、更节约时间的方法。Ｃｅｒａｍｉｃｒｅｐａｉｒ(Ｉｖｏｃｌａｒ公司 )是一种专门用于金属烤瓷、全瓷、复合树脂修复体折裂后口内直接修补的套装。本研究对 18例崩瓷后的前牙金属烤瓷修复体采用Ｃｅｒａｍｉｃｒｅｐａｉｒ套装进行修补 ,并随访观察了 2年。材料和方法1 …     

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目的 探讨用光固化法修复金属烤瓷修复体（PFM）崩瓷的临床效果。方法 对2003年9月至2008年9月建阳市立医院口腔科收治的23例PFM崩瓷病例采取折裂断面固位预备,利用10.0%～12.5%氢氟酸进行黏结面的瓷表面处理30～120 s,必要时在裸露的基底冠上进行粗化或制备固位洞型,配合使用硅烷瓷处理剂和自酸蚀黏结材料,用树脂进行光固化复色充填修复。结果 修复后随访观察6个月至5年,23例中20例修复后修复体无松动、脱落、变色,效果良好,成功率86.96％。3例松脱后重新修复,效果满意。结论 利用光固化技术进行崩瓷口内即刻修补,具有经济、美观、简便、有效的特点,值得临床推广应用。     

金属烤瓷牙崩瓷的口内修补及临床分析

金属烤瓷修复体在临床上的应用越来越广泛 ,部分修复体的脱瓷、崩瓷现象是目前金属烤瓷修复体存在的问题之一。由于修复体与基牙之间是永久粘结 ,不易拆除 ,如强行拆除会增加患者的痛苦及费用。我科自 1995年以来用Ｃｉｍａｒａ修补材料对 97例金属烤瓷崩瓷的患者行口内修补 ,取得了较好的临床效果 ,成功率达 91.8%。材料和方法1 病例的选择　选择金属烤瓷单个牙崩瓷的患者 ,其中单纯性崩瓷无金属外露的有 39例 ,有金属外露但小于牙面1/ 2者有 36例 ,金属外露面积在牙面 1/ 2以上者有 2 2例。2 修补材料　德国Ｃｉｍａｒａ套装材料 ,它包含…     

金属烤瓷冠崩瓷的临床修补

金属烤瓷冠崩瓷是临床导致金一瓷修复体失败的常见原因之一。修复体的拆除即费力又会给患者造成很大痛苦，随着粘结材料的改进，技术的更新，使得口内修补瓷裂方便可行，本文对烤瓷冠崩瓷的临床修补做一综述。     

口内瓷修补材料的应用体会

临床上在口腔内直接进行瓷体缺损修补一直较困难。作者使用口内瓷修补专用材料修补瓷缺损病例17例,观察2～4个月,效果良好。现报告如下。 材料与方法 1.材料 德国产VoCo“Cimera”崩瓷修补套盒。包括偶联剂、不透明液、不透明粉和3支光固化充填树脂以及氧化铝小磨头等工具。 2.方法     

硅烷偶联剂在崩瓷修补中的应用研究

目的:研究硅烷偶联剂对瓷面与复合树脂之间剪切粘接强度的影响。评价可乐丽菲露补瓷套装中瓷处理剂对金属烤瓷修复体崩瓷的修补效果的影响,为临床提供指导。方法:将20个瓷试件随机分为2组,粗化后,实验组采用瓷处理剂(硅烷偶联剂)与牙本质处理剂混合对瓷块表面处理,对照组用牙本质处理剂对瓷块表面处理,然后所有试件使用可乐丽菲露崩瓷修复系统粘接修复,经37℃恒温水浴24h后,然后使用AG-10TA型万能力学测定仪测定瓷试件与复合树脂之间剪切粘接强度,采用两独立样本t检验进行统计分析。选择崩瓷的患者40例,采用可乐丽菲露补瓷套装修补,修复后2年对树脂修补材料的成功率进行调查。结果:使用硅烷偶联剂处理组所获得的瓷块与复合树脂间剪切粘接强度值比未使用硅烷偶联剂组大,差异有显著性(P<0.05),可乐丽菲露补瓷套装修补崩瓷40例两年的成功率达87.5%,失败率12.5%。结论:硅烷偶联剂能有效提高瓷-复合树脂间剪切粘接强度。用可乐丽菲露补瓷套装修补烤瓷牙瓷层断裂,临床效果较好。     

局部烤瓷冠修复固定桥崩瓷1例

固定烤瓷桥表面瓷层崩裂后影响美观,难以修补,是固定烤瓷桥修复牙列缺损的缺陷之一。尤其是多基牙联合修复体,如拆除重新修复,费用较高,患者多嫌麻烦,一般都难以接受。笔者现报道1例在多基牙烤瓷桥修复体上采用局部单牙预备后烤瓷冠修复崩瓷的病例。此种方法既满足了患者对美观     

金属烤瓷修复体崩瓷口内修补的临床疗效观察

金属烤瓷修复体因其色泽美观、机械性能稳定得到了广泛的应用。然而,由于瓷与金属间的模量差异、临床设计和牙体预备不良、制作不精等原因,一些金属烤瓷修复体在使用中会发生崩瓷。有研究表明,崩瓷的发生率可达2．3％～8％。将崩瓷修复体拆除重新制作,不仅费时费力,而且增加患者痛苦。为此,近年来发展出采用复合树脂粘结直接修补瓷缺损的方法,凭借易操作、花费低等特点逐渐得到临床接受与应用。笔者采用Clearfil Repair套装对48例崩瓷患者行口内直接修补,通过随访观察,分析不同崩瓷类型的临床疗效,为该方法的应用提供参考。     

烤瓷修复体崩瓷的修复

烤瓷熔附金属 (ｐｏｒｃｅｌａｉｎ ｆｕｓｅｄ ｔｏ ｍｅｔａｌ)修复体 ,因其良好的生物相容性 ,稳定的理化性能 ,逼真的色泽 ,近年来在我国口腔修复领域得到了广泛应用[1～ 3] 。但烤瓷熔附金属修复体在设计 ,制作和使用过程中如不注意 ,则易造成瓷修复体的瓷裂 (ｐｏｒｃｅ ｌａｉｎｆｒａｃｔｕｒｅ)。如何妥善修复崩瓷 ,各国学者做了大量的研究 ,下面就这方面的研究进展做一综述。金属烤瓷修复体在患者口腔中发生崩瓷后 ,不仅影响患者的美观和功能 ,而且给医生修复崩瓷带来很多不利。早期氰基丙烯酸酯 ,丙烯酸树脂 ,复合树脂都曾用于修…     

The repair methods for fractured metal-porcelain restorations: a review of the literature

Metal-ceramic restorations are popular in restorative dentistry. Although metal-ceramic restorations are universally accepted, they have such disadvantages as occasional fractures of the veneer. Fracture and loss of the veneering ceramic of a fixed partial denture is troublesome. If the restoration is in an otherwise acceptable condition, dentists frequently use different repair methods to avoid removal of the restoration. The techniques for repair of fractured porcelain restorations include a) rebonding the fractured chip to the fixed restoration, b) fabricating a porcelain veneer to bond to the fractured porcelain, and c) using a composite resin to restore the fractured porcelain. This article presents a literature review of the intra and extra oral repair techniques for fractured metal-porcelain restorations. A PubMed data base search was conducted for the repair of porcelain.     

不同树脂粘结剂对ZrO_2瓷贴面修复模拟四环素牙颜色的实验研究

目的：研究不同颜色的树脂粘结剂对ZrO2瓷贴面修复两种程度的四环素牙颜色的影响,为临床提供依据。方法：使用CM700d/600d分光测色计测量不同颜色的树脂粘结剂对ZrO2瓷贴面修复两种四环素牙颜色的影响,采用国际照明委员会（CIE）1976L＊a＊b标准色度系统进行评价。结果：使用不同颜色树脂水门汀粘接瓷贴面修复模拟四环素基牙,粘接后黏结前后瓷贴面试件表面的L＊、a＊、b＊值之间有统计学差异（P〈0.05）。深灰色背景的四环素牙用Kerr NX3白色光固化树脂水门汀对修复体的色彩的效果较好,而浅灰背景的四环素牙用SDI A1双固化树脂水门汀能更好的体现修复体的最终的修复效果。结论：ZrO2全瓷贴面可以改善四环素牙的颜色,但修复后最终的颜色易受基牙影响,所以应根据四环素牙的不同程度来选择合适的的树脂粘结剂。     

玻璃纤维桩和复合树脂直接修复儿童冠折上前牙的临床评价

目的：应用玻璃纤维桩和复合树脂直接修复儿童冠折上前牙,随访2年并评价其临床效果。方法：对37例45颗儿童冠折上前牙行完善的根管治疗后,应用玻璃纤维桩与复合树脂直接进行修复,定期复查,评价其临床效果。结果：随访期内未见纤维桩折断、根折、及根尖周病变,仅1颗出现桩的脱粘结导致桩和树脂脱落。树脂的边缘渗漏、继发龋、表面着色、树脂折裂或部分脱落偶有发生,经处理均达病人满意。结论：对于根管治疗后儿童冠折前牙,应用玻璃纤维桩和复合树脂直接进行修复是成功而有效的过渡性治疗方法,可在短期内最大限度保存牙体组织,降低根折风险。     

金属烤瓷修复体瓷崩裂后的临床修理及其方法探讨

目的：介绍和评价金属烤瓷修复瓷崩裂后的临床修理方法。方法：采用光固化复合树脂、瓷贴面、金瓷覆盖冠等方法，修理了22例瓷崩裂的金属烤瓷修复体，观察了1－4年的临床效果。结果：11例树脂修复材料2年后脱落1例，4年后脱落2例；6例瓷贴面3年、4年各脱落1例；5例金瓷覆盖冠均完好。结论：根据金属烤瓷修复体瓷裂后的具体情况，选用不同的修理方法，可收到一定的临床效果。     

Marginal seal comparisons between resin-bonded Class II porcelain inlays, posterior composite restorations, and direct composite resin inlays

The microleakage of indirect porcelain and direct composite resin-bonded inlays was compared with that of posterior composite resin restorations using Class II preparations of extracted molar teeth. The resin-bonded inlay restorations provided a better marginal seal at the cervical restoration/dentin interface than did the composite resin restoration. The efficacy of this marginal seal varied with the particular treatments and materials used. Resin-bonded porcelain inlays had a higher incidence of cervical excess from the composite resin luting agent than did the posterior composite resin restorations.     

Fracture resistance of composite resin restorations and porcelain veneers in relation to residual tooth structure in fractured incisors

Abstract – The aim of the present study was to investigate whether there is a direct correlation between the amount of residual tooth structure in a fractured maxillary incisor and the fracture resistance of composite resin restorations or porcelain veneers after cyclic loading. Sixty human‐extracted maxillary central and lateral incisors were mounted in an acrylic block with the coronal aspect of the tooth protruding from the block surface. The teeth were assigned to two groups: 2‐mm incisal fracture and 4‐mm incisal fracture. Then, the teeth were further divided into two different restoration subgroups, porcelain laminate veneer and composite resin restoration, therefore obtaining four groups for the study (n = 15). The specimens were subjected to 1000 cycles of thermocycling and were mechanically tested with a custom‐designed cyclic loading apparatus for 2 × 106 cycles or until they failed. The specimens that survived the cyclic loading were loaded on the incisal edge along the long axis of the tooth with a flat stainless steel applicator until they fractured using a universal testing machine to measure the failure load. Two‐way anova was used to assess the significance of restoration, amount of fracture, and interaction effect (α = 0.05). During the cyclic loading, for the composite resin group, two specimens with 2‐mm fracture and three specimens with 4‐mm fracture failed. For the porcelain veneer group, two specimens with 2‐mm fracture and one specimen with 4‐mm fracture failed. The 2‐way anova did not show statistical significance for restoration (P = 0.584), amount of fracture (P = 0.357), or interaction effect (P = 0.212). A composite resin restoration and a porcelain veneer could perform similarly for replacing a fractured incisor edge up to 4 mm. Other factors such as esthetic and/or cost would be considerations to indicate one treatment over the other.     

Composite resins bonded to porcelain with silane solution.

A system of bonding composite resins to dental porcelain with silane solution produced a reliable bond. The introduction of stresses, particularly thermal and functional, needs to be investigated further and tested clinically. This technique is now being investigated clinically in a number of porcelain-fused-to-gold restorations. It could be an effective method of intraoral repair of fractured or chipped porcelain restorations.     

碳纤维桩核冠修复年轻恒牙冠折

目的：探讨年轻恒牙冠折碳纤维桩核冠修复治疗的临床效果。方法：临床选择32例年轻恒牙冠折的患者共39颗患牙,先用Vitapex进行根尖诱导成形术,再对残冠残根进行碳纤维桩核冠修复,并进行定期临床检查。结果：碳纤维桩核修复系统39颗修复体1年后复查,成功率为95．1％。结论：对于年轻恒牙患者根尖诱导完成后进行碳纤维桩修复r可以满足临床要求,有一定的临床价值。     

Approaches for intraoral repair of ceramic restorations

Ceramic-based restorations are an important part of a dentist's armamentarium for durability and esthetics. Because of the brittle nature of ceramic materials, these restorations have the potential to fracture. Repairing ceramic-based restorations can increase the clinical longevity of failed restorations and offer the dentist and patient a cost-effective alternative to replacement. Newer porcelain repair systems show excellent adhesion durability of resin-based composites to the fractured ceramic and exposed metal surfaces. This article reviews the basic principles of ceramic repair and details the use of five intraoral porcelain repair systems.