Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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Influence of the Mold Temperature on the Castability of CP Ti

주형온도가 CP Ti의 주조성에 미치는 영향

  • Jung, Jong-Hyun (Dept. of Dental Lab. Technology, Kwangju Health College) ;
  • Joo, Kyu-Ji (Dept. of Dental Lab. Technology, Kwangju Health College) ;
  • Go, Eun-Kyoung (Dept. of Dental Materials Research Institute College of Dentistry, Chonnam National University)
  • Published : 2006.07.10
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Abstract

The purpose of this study was to evaluate the titanium castability with a spin type casting machine(TiCast, Super R, Selec, Osaka. Japan). We tested phosphate bonded investment "Rematitan$^{(R)}$Plus(Dentaurum, Inc., Pforzheim, Germany)"of mesh grid pattern and plate pattern. Four different mold temperatures(room temperature, 200$^{\circ}C$, 400$^{\circ}C$ and 600$^{\circ}C$) were prepared for the present study. In mesh grid pattern with spruing of $\varphi$0.88㎜ dimeter, when the mold temperature increased, high percentage of castability was gained. Mold temperature showed a highly significant(p<0.05) correlation on the castability, In plate pattern, the higher the mold temperature during casting, the greater the adhesive phenomenon between Ti surface and the investment.

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