| 口腔铸造支架和金属内冠失败原因分析 |
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| 引用本文： | 姚勤.口腔铸造支架和金属内冠失败原因分析[J].泰州职业技术学院学报,2007,7(4):63-64. |
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| 作者姓名： | 姚勤 |
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| 作者单位： | 泰州职业技术学院,江苏,泰州,225300 |
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| 摘 要： | 目的探讨口腔铸件常见失败原因。方法对290例牙体或牙列缺损患者进行熔模铸造，制作380件金属内冠和支架。结果380件铸件中失败40件，其中铸造不全18件，铸件变形16件，缩孔2件，砂眼1件，裂缝2件，金属瘤1件。结论铸造不全和铸件变形是临床铸件失败的主要原因。
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| 关 键 词： | 牙科铸造技术 牙修复体 义齿 熔模 |
| 文章编号： | 1671-0142（2007）04-0063-02 |
Analyzing the Failure Cause of Casting Frame With Cochrome |
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| YAO Qin.Analyzing the Failure Cause of Casting Frame With Cochrome[J].Journal of Taizhou Polytechnical Institute,2007,7(4):63-64. |
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| Authors: | YAO Qin |
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| Institution: | Medical Department, Taizhou Polytechnic Institute, Taizhou Jiangsu 225300, China |
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| Abstract: | Objective To discuss the failure causes of casting the removable denture with casting prosthesis.Methods 290 patients with dental or dentition defect diseases were treated with investment casting,manufactured 380 metal crowns and brackets.40 of 380 are failure.In the 40 failure frames,18 were incomplete,16 were anamorphic,2 frame's hole were contractive,1 had pit hole,2 frame's surface were coarse,and 1 was metal nubble.Conclusion Casting incompletely and casting strains is the main failure cause. |
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| Keywords: | dental casting technique Dental prosthesis denture investment pattern |
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