Ying-Hui Wang1, Fen-Fang Qiu2, Wei-Qing Wu3, Hui Cheng1. 1. Dept. of Prosthodontics, School and Hospital of Stomatology, Oral Medicine Research Institute, Oral Medical Aesthetics and Biomechanics Research Center, Fujian Medical University, Fuzhou 350002, China. 2. Dept. of Stomatology, Fujian Provincial Governmental Hospital, Fuzhou 350002, China. 3. Test Center, Fuzhou University, Fuzhou 350002, China.
Abstract
OBJECTIVE: This study aimed to determine the effect of recasting in vacuum with argon on the chemical composition of cobalt-chromium (Co-Cr), commercially pure titanium (cpTi), palladium-based (Pd-based), and aurum-platinum (Au- Pt) ceramic alloys. METHODS: Without adding new alloys, Co-Cr, cpTi, Pd-based, and Au-Pt ceramic alloys were recast one to three times under the condition of vacuum compressive casting with argon. Before recasting, four previously cast ceramic alloys were treated with the corresponding method. After polishing, the chemical composition of the four ceramic alloys recasted one to three times were determined by energy-dispersive spectrometry. RESULTS: No significant difference was observed in the chemical composition of the four ceramic alloys recast 1-3 times (P>0.05). CONCLUSIONS: Under the condition of vacuum with argon, the recasting had no obvious influence on the chemical composition of Co-Cr, cpTi, Pd-based, and Au-Pt ceramic alloys.
OBJECTIVE: This study aimed to determine the effect of recasting in vacuum with argon on the chemical composition of cobalt-chromium (Co-Cr), commercially pure titanium (cpTi), palladium-based (Pd-based), and aurum-platinum (Au- Pt) ceramic alloys. METHODS: Without adding new alloys, Co-Cr, cpTi, Pd-based, and Au-Pt ceramic alloys were recast one to three times under the condition of vacuum compressive casting with argon. Before recasting, four previously cast ceramic alloys were treated with the corresponding method. After polishing, the chemical composition of the four ceramic alloys recasted one to three times were determined by energy-dispersive spectrometry. RESULTS: No significant difference was observed in the chemical composition of the four ceramic alloys recast 1-3 times (P>0.05). CONCLUSIONS: Under the condition of vacuum with argon, the recasting had no obvious influence on the chemical composition of Co-Cr, cpTi, Pd-based, and Au-Pt ceramic alloys.
Entities:
Keywords:
ceramic alloy; chemical composition; recasting
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