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| 不同基底对热压铸全瓷冠抗碎裂载荷影响 | |
| 引用本文： | 王辉,陈吉华,施长溪. 不同基底对热压铸全瓷冠抗碎裂载荷影响[J]. 中国美容医学, 2003, 12(2): 117-119 |
| 作者姓名： | 王辉 陈吉华 施长溪 |
| 作者单位： | 第四军医大学口腔医学院修复科,陕西省,西安市,710032 |
| 基金项目： | 国家自然科学基金资助(30070820) |
| 摘 要： | 目的:研究不同基底对后牙热压铸瓷冠抗碎裂载荷的影响。方法:24颗拔除的无龋坏磨牙进行标准基牙预备,以及自制金属代型、树脂代型、大小规格统一。制成厚度为1.5mm±0.1mm的Cerinate,IPS-Empess,Optec-OPC热压铸瓷冠,以树脂粘固剂分别粘固于牙齿、金属代型、树脂代型上,垂直加压于全冠直至碎裂,经统计分析。结果:粘固于牙齿上的热压铸瓷冠的抗碎裂载荷明显高于粘固于金属代型、树脂代型上的(P<0.01)。结论:由于采用了树脂粘接剂材料,因此有利于提高热压铸瓷冠与牙齿粘接后的整体强度。 |
| 关 键 词： | 基底 抗礁裂载荷 热压铸陶瓷 树脂粘接剂 牙科材料学 |
| 文章编号： | 1008-6455(2003)02-0117-03 |
| 修稿时间： | 2002-12-01 |
The effect of different post and core restorations on the fracture resistance of hot pressable ceramic crown |
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| WANG Hui,CHEN Ji-hua and SHI Chang-xi. The effect of different post and core restorations on the fracture resistance of hot pressable ceramic crown[J]. Chinese Journal of Aesthetic Medicine, 2003, 12(2): 117-119 | |
| Authors: | WANG Hui CHEN Ji-hua SHI Chang-xi |
| Abstract: | Objective: To study the effect of different post and core restorations on the fracture resistance of hot pressable ceramic systems Methods: 24 extracted human maxillary molars were regularly prepared and metal, resin post and core restorations were made as reference. This was performed for 3 subgroups 3 hot pressable ceramic systems at one thickness value (1.5mm).Crowns were vertically loaded until failure. Significant differences of fracture loads between experimental groups were analyzed by one-way ANOVA.Results: There was significant differences in each hot pressable ceramic systems in the mean fracture resistance of the teeth restored compared with metal posts and resin posts. Conclusion: Crowns constructed in a pressable ceramic and place using resinous cement may provide some increase in fracture resistance |
| Keywords: | hot pressable ceramic system fracture resistance post and core restorations |
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