| 铸钛义齿铸造缺陷的临床分析 |
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| 引用本文： | 刘亚林,张连云,李长义,张娟,韩素莉,吴海树.铸钛义齿铸造缺陷的临床分析[J].口腔颌面修复学杂志,2001,2(4):228-230. |
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| 作者姓名： | 刘亚林 张连云 李长义 张娟 韩素莉 吴海树 |
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| 作者单位： | 1. 天津医科大学口腔医院
2. 大连大学附属口腔医学 |
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| 摘 要： | 目的:评价临床铸钛义齿制作过程中的缺陷,以提高铸造成功率。方法:对328件铸钛义齿进行回顾性总结,并对其发生的铸造缺陷进行统计分析。结果:本文全部铸件中,铸造不全4件,占1.22%,31件有内部气孔,占9.4%,7件存在表面粗糙,占2.13%。在铸钛固定修复中,应用独立分铸道内部气孔发生率明显小于栅栏式铸道(x2=4.65, p<0.05)。结论:铸钛义齿存在一定比例的铸造缺陷,铸道设计是影响铸造缺陷的重要因素之一。
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| 关 键 词： | 钛义齿 铸造缺陷 铸道设计 |
| 文章编号： | 1009-3761(2001)04-0228-03 |
| 修稿时间： | 2001年9月11日 |
Analysis study the cast doflciency of titanium denture |
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| LIU Ya-Lin,ZHANG Lian-Yun,LI Chang-Yi,ZHANG Juan,HAN Su-Li,WU Hai-Shu..Analysis study the cast doflciency of titanium denture[J].Chinese Journal of Prosthodontics,2001,2(4):228-230. |
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| Authors: | LIU Ya-Lin ZHANG Lian-Yun LI Chang-Yi ZHANG Juan HAN Su-Li WU Hai-Shu |
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| Abstract: | Objective:To evaluate the reason of the cast deficiency of titanium denture, then to achieve higher successrate and to avoid inner deficiency. Methods: 328 casting of titanium dentures were studied by x-rays statistically analysed.Results:There were 4 incomplete casting dentures (1.22%), 31 cases of internal porosity (9.45%) and 7 cases of surfacerough (2.13%). The incidence of internal porosity of runner bar sprue design had less than that of individual sprue designin fixed restoration (x2=4.65, p<0.05).Conclusions: Casting titanium dentures have proper ratio of casting deficiency, inwhich the sprue design is one of the most important factor. |
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| Keywords: | titanium denture cast deficiency casting sprue |
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