Conclusions: the titanium porcelain - fused-to - metal crown is more better to the periodontal health than the nickel - chromium alloy porcelain-fused-to-metal crown.
结论：钛合金烤瓷全冠总体疗效优于镍铬合金烤瓷全冠，更有利于牙周健康。
Conclusions: the titanium porcelain - fused-to - metal crown is more better to the periodontal health than the nickel - chromium alloy porcelain-fused-to-metal crown.
结论：钛合金烤瓷全冠总体疗效优于镍铬合金烤瓷全冠，更有利于牙周健康。
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