Objective: To observe the image and the influence on adjacent tissue of fixed prosthesis made of Ni-Cr alloy for different teeth and different kinds in magnetic resonance imaging(MRI)testing.
2
牙用固位钉、镍铬合金冠等材料在快速自旋回波图像上伪影减轻。
Artifacts produced by retention pin, nickel chromium crown and so on were less severe on fast spin-echo.
3
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.
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