Artifacts produced by retention pin, nickel chromium crown and so on were less severe on fast spin-echo.
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。
Whereas the remaining 12 samples, such as the retention pin and pivot pin, showed obvious artifacts.
牙用固位钉、椿钉等12件试样有严重伪影。
Whereas the remaining 12 samples, such as the retention pin and pivot pin, showed obvious artifacts.
牙用固位钉、椿钉等12件试样有严重伪影。
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