All-ceramic fixed partial dentures designed according to the DC-Zirkon® technique.: A 2-year clinical study
All-ceramic fixed partial dentures designed according to the DC-Zirkon® technique.: A 2-year clinical study
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DOI：
10.1111/j.1365-2842.2004.01437.x
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发表时间：
2005-03-01
影响因子：
2.9
通讯作者：
Nilner, K
中科院分区：
文献类型：
--
作者：
Von Steyern, PV;Carlson, P;Nilner, K
本研究的目的是调查是否预烧结，热等静压后压实（HIP）氧化锆的性能是足够的用于三个五个单位的固定部分义齿（FPD），并评估临床结果。为18名患者制作了23个五单元FPD，共56个基台。它们都是在基台上制作的，用肩关节准备和磷酸锌骨水泥固定。临床随访24个月。24个月后，所有FPD仍在使用中，没有任何断裂或临床磨损，但在3例（15%）中观察到轻微碎片断裂。45个基台的边缘完整性评定为极好，11个可接受。在本2年临床随访研究的限制范围内，在本研究中研究的带有延长件的FPD的制造中，由预烧结HIP ZrO 2芯材和兼容陶瓷贴面制成的FPD是可接受的替代方案。然而，必须特别注意设计的核心咬合形状，提供足够的支持贴面。
The aim of the study was to investigate whether the properties of a pre-sintered, hot iso-static post-compacted ( HIP) ZrO2 are adequate for use in three-five-unit fixed partial dentures (FPDs) and to evaluate the clinical results. Twenty three five-unit FPDs were fabricated for 18 patients on a total of 56 abutments. They were all made on abutments cut with a shoulder preparation and cemented with a zinc phosphate cement. They were clinically followed for 24 months. After 24 months all FPDs were still in use without any fractures or clinical wear but in three cases (15%) minor chip-of fractures were observed. Marginal integrity was rated excellent at 45 abutments and acceptable at 11. Within the limitations of this 2-year clinical follow-up study, FPDs made of pre-sintered HIP ZrO2 core material veneered with a compatible ceramic is an acceptable alternative in the fabrication of FPDs with the extensions investigated in this study. Special attention, however, must be paid to designing the core for an occlusal shape that provides sufficient support for the veneer.