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Development and application of the castable ceramic inlay with coping by precious metal

贵金属内冠可浇铸陶瓷嵌体的研制与应用

基本信息

批准号：
14370612
负责人：
KOMATSU Masashi
金额：
$ 8.38万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14370612/
关键词：
Coping Castable Ceramic Inlay Captek P Captek G Firing ceramic inlay Ceramic Ingot Pressure Casting IPS Empress キャプテック P キャプテック G IPSエンプレス 2 IPSエンプレス2

项目摘要

The purpose of this study is to evaluate the effect of a coping system (CAPTEK^<【○!R】>) on ceramic inlays by measuring the physical properties and observing the coping-ceramics interface. In addition, the strength of current sintering precious metal and porcelain bonded-to-metal are also reported.The precious-metal coping material, CAPTEK was used for the experiment. Vintage Hello (Shofu Inc.) and IPS Empress I (I voc lar Vivadent AG)-fused-to-coping materials were prepared according to manufacturers instructions. These ceramics-fused-to-coping materials were observed by SEM. The flexure strength was determined by using the Instron universal testing machine (crosshead speed : 1mm/min)(n=5). Fracture toughness (KIC) was determined by the indentation technique. The specimens were 2 mm in thickness and 6 mm in diameter. A load of 9.8 N was used for the indentation. Fracture toughness was calculated using Niihara's formula (n=6).The following results were obtained.1.Physical properties of … More Empress I^<【○!R】> with coping were definitely improved. In the fracture toughness (MNm-3/2), IPS Empress I with coping showed significantly greater strengths (1.57±0.06) than those without coping (1.39±0.15)(p<0.05).2.Flexure strength of Vintage Halo^<【○!R】 with coping was definitely improved, but fracture toughness had decreased. The flexure strength (MPa) of the ceramics with coping showed significantly higher values (Vintage hello 149.6±13.0, IPS Empress I 200.5±24.5) than the ceramics without coping (82.9±3.0, 151.4±5.7)(p<0.05). But the fracture toughness of the Vintage Hello without coping showed significantly greater strengths(1.14±0.12) than those with coping (0.90±0.08)(p<0.05).3.There was tight joint between CAPTEK^<【○!R】 and ceramics by mechanical bonding. The interfaces of IPS Empress I and Vintage Hello-fused-to-coping materials showed no gaps.4.Mean fracture strength of CAPTEK^<【○!R】 was higher than that of HT, DG and values found for DG and KIK were in between.5.Adaptation of Empress I^<【○!R】 with coping was inferior to that without coping. Less

本研究的目的是评估应对系统（CAPTEK^<[○！R]>）对瓷嵌体的影响。此外，本文还报道了贵金属和金属-瓷结合体的强度，并以贵金属冠材料CAPTEK为实验材料。Vintage Hello（Shofu Inc.）和IPS Empress I（Iprislar Vivadent AG）-熔融至顶盖材料。用扫描电镜观察了陶瓷熔附在冠材料上的形态。使用Instron万能试验机（十字头速度：1 mm/min）测定弯曲强度（n=5）。断裂韧性（KIC）测定压痕技术。试样厚度为2 mm，直径为6 mm。压痕使用9.8 N的载荷。用Niihara公式计算断裂韧性（n=6），得到如下结果：1. ...更多信息皇后一世^<[○！应对能力明显改善。在断裂韧性（MNm-3/2）方面，带内冠的IPS Empress I的强度（1.57±0.06）显著高于不带内冠的IPS Empress I的强度（1.39±0.15）（p<0.05）。R]明显提高，但断裂韧性下降。带内冠的陶瓷弯曲强度（MPa）（Vintage hello 149.6±13.0，IPS Empress I 200.5±24.5）显著高于不带内冠的陶瓷（82.9±3.0，151.4±5.7）（p<0.05）。而Vintage Hello无内冠组的断裂韧性（1.14±0.12）显著高于有内冠组（0.90±0.08）（p<0.05）。R]和陶瓷通过机械结合。IPS Empress I和Vintage Hello-fused-to-coping材料的界面显示无间隙。4. CAPTEK的平均断裂强度^<[○！R]高于HT、DG，DG和KIK介于两者之间。有应对的患者比无应对的患者的R]差。少