Clinical studies of the attrition in a new ceramic-resin composite for a fixed prosthesis

新型陶瓷树脂复合材料固定假体磨损的临床研究

• 批准号: 05454531
• 负责人: ATSUTA Mitsuru
• 金额: $ 4.1万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05454531/
• 关键词: ceramic-resin composite; three-body wear-testing device; composte resin veneering material; metal primer; porcelain primer; age-hardenable gold alloy at intraoral temperature; adhesive resin cement

During an observation period of the last several years, the authors have experienced fractured cases of molar restorations made of a castable ceramic material (OCC), which is trusted to be the strongest ceramic material. The new composite material therefore was applied to a buccal and a part of occlusal surfaces as a veneering agent of composite resin veneered restorations. This system requires bonding between resin or ceramic material and titanium or age-hardenable gold alloy. Hence appropriate bonding systems for the veneer-substructure combinations were ascertained using metal and ceramic primers. The results have alreaby been published in the research reports.The distribution of occlusal forces were evaluated by means of a occlusal force determination system (Occluzer). The results indicate that there was no significant difference in distribution of occlusal forces between the base line and after six months. The composite material applied to a part of occlusal surface did not generate any problem. Further observation should be necessary for prediction of rate of clinical success. Scanning electron microscopic observation of in vivo occlusal wear through the use of replicated cast also did not show apparent difference between the two observation periods except for detection of slight wear of the resin portion. By the end of the experimental period, several improvements in computer software of the apparatus were accomplished. These version-ups enabled calculation of bonded area as well as displaying the results in situ. The system is then capable of analyzing data of numerous cases within shorter period of time as compared to the conventional system. The restorations are being continuously observed by the authors and the forthcoming results may indicate that the restorations made of our system are proved to be so called the balanced-worn or the equi-occlusal-force-distributed system.

在过去几年的观察期间，作者经历了由可浇铸陶瓷材料（OCC）制成的磨牙修复体断裂的病例，这种材料被认为是最强的陶瓷材料。因此，将新型复合材料作为复合树脂贴面修复体的贴面剂应用于颊面和部分咬合面。该系统需要树脂或陶瓷材料与钛或时效硬化金合金之间的粘合。因此，使用金属和陶瓷底漆确定了单板-下部结构组合的适当粘合系统。研究结果已发表在研究报告中。通过咬合力测定系统（Occluzer）评估咬合力的分布。结果表明，基线和六个月后的咬合力分布没有显着差异。将复合材料应用于咬合面的一部分并没有产生任何问题。为了预测临床成功率，需要进一步观察。通过使用复制模型对体内咬合磨损进行扫描电子显微镜观察，除了检测到树脂部分的轻微磨损外，两个观察期之间也没有显示出明显的差异。实验结束时，该设备的计算机软件已完成多项改进。这些版本升级可以计算粘合面积并现场显示结果。与传统系统相比，该系统能够在更短的时间内分析大量病例的数据。作者正在不断观察修复体，即将出现的结果可能表明我们的系统制成的修复体被证明是所谓的平衡磨损或等咬合力分布系统。

项目成果

K.Yoshida, T.Sawase et al.: "Shear bond strengths of four resin cements to cobalt-chromium alloy." Am J Dent. 8. 285-288 (1995)

K.Yoshida、T.Sawase 等人：“四种树脂水泥与钴铬合金的剪切粘合强度。”

I.Watanabe, H.Matsumura et al.: "Effect of two metal primers on adhesive bonding with Type IV gold alloys." J Prosthet Dent. 73. 299-303 (1995)

I.Watanabe、H.Matsumura 等人：“两种金属底漆对 IV 型金合金粘合的影响”。

K.Yoshida,H.Matsu〓ura,M.Atsuta: "Effect of adhesive metal primers on bonding a prosthetic composite resin to metals" J Prosthet Dent. 69. 357-362 (1993)

K. Yoshida、H. Matsu〓ura、M. Atsuta：“粘合金属底漆对修复复合树脂与金属粘合的影响”J Prosthet Dent。 69. 357-362 (1993)

K.Yoshida, T.Sawase et al: "Shear bond strengths of four resin cements to cobalt-chromium alloy." Am J Dent. 8 (6). 285-288 (1995)

K.Yoshida、T.Sawase 等人：“四种树脂水泥与钴铬合金的剪切粘合强度。”

H.Matsumura,K.Ceinfelder: "Three-body wear of four types of light-activated composite resin veneering materials" Quintessence international. 25. 425-430 (1994)

H.Matsumura，K.Ceinfelder：“四种光激活复合树脂贴面材料的三体磨损”Quintessence International。