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Publication Open Access The potential of copper alloy as alternative material for post and core applications.(2014-09) Somchai Urapepon; สมชาย อุรพีพล; Usanee Peungpaiboon; อุษณีย์ ปึงไพบูลย์; Somchai Urapepon; สมชาย อุรพีพล; Mahidol University. Faculty of Dentistry. Department of ProsthodonticsObjective: The purpose of this study was to investigate the use of copper alloy for dental application. Materials and methods: Three types of copper alloy used in Thailand were selected (Cu-Al, Cu-Al-Ni and Cu-Zn). Ingots of these three alloys...-Zn alloys were not significantly different (48.6, 52.1, and 53.3 percent, respectively). The proof stress of Cu-Al and Cu-Al-Ni alloys (88.5 and 72.1 MPa, respectively) were not significantly different, while that of Cu-Zn alloy (38.9 MPa