The Journal of the Korean dental association (대한치과의사협회지)
- Volume 23 Issue 7 Serial No. 194
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- Pages.577-583
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- 1985
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- 0376-4672(pISSN)
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- 2713-7961(eISSN)
The Etched Surface of the Repeatedly Cast Dental Base Metal Alloy
반복 사용된 치과용 비귀금속에 의한 주조체의 식각표면에 대한 연구
- Lee, Sun-Hyung (Dept. of Prosthodontics, College of Dentistry Seoul National University)
- 이선형 (서울대학교 치과대학 보철학교실)
- Published : 1985.07.30
Abstract
The purpose of this investigation was to evaluate scanning electron micrographs of repeatedly cast base metal alloy. For this study two Ni-Cr-Be alloys were used; Rexillium III and Verabond. They were repeatedly cast without addition o new alloy melting with an electric resistant furnace (Castron 8, Yoshida dental equipment Mfg.Co.). They were etched with 10% H₂SO₄ Sol. at 300mA/㎠ for 3 minutes with the use of metal etching unit Oxyetch (OXY dental product Inc.), and ultrasonic cleaning in 18% HC1 Sol. was done. Etched surfaces were examined under a SEM at x 200 and x 750. The surfaces are shown in legends.
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