Experimental study on the retentive force of cobalt-chromium alloy, pure titanium and vitallium cast clasps in the simulated 3-year clinical use
YAN Hai-xin,, ZHAO Yan-bo, QIN Li-mei,, ZHU Hai-ting,, WU Lin,.
Shanghai Journal of Stomatology
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2015, (6): 696
-701
.
