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KMID : 0615219870120010119
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Journal of Kwangju Health
1987 Volume.12 No. 1 p.119 ~ p.125
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Effect of Sprue Form on Castability When Ni-Cr Alloy Used for Dental Restoration
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鄭宗鉉
朴孝秉
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Abstract
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A standardized mesh test pattern was used to ensure objective measurement and accurate evaluation of the spruing technique.
The result were as follows :
1. "F form"sprue, constricted the connection between the casting and the sprue, casted better than any other sprue.
2. Castability effected by sprue forms was significant difference statistically (P<0.01).
3. In castability effected by sprue forms, there was no significant difference between "B form" and "F form´´sprues, but significant difference between the others (P<0.01).
4. "D form"sprue with reservoir casted better than "A form"sprue with no reservoir. There was significant difference statistically (P< 0.05).
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KEYWORD
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