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0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm
0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm
0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm
0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm
一般按箱状洞形制备 髓壁应达牙本质内 髓壁应平行 龈、切、近中、远中四壁皆应平行于釉柱方向与就位道一致 最好在髓壁近远中端牙本质内各做一针道
一般按箱状洞形制备 髓壁应达牙本质内 髓壁应平行 龈、切、近中、远中四壁皆应平行于釉柱方向与就位道一致 最好在髓壁近远中端牙本质内各做一针道
0.2~0.5mm 0.5~1mm 1.0~1.5mm 1.5~2.0mm 都不正确
一般按箱状洞形制备 髓壁应达牙本质内 髓壁应平 龈、切、近中、远中四壁皆应平行于釉柱方向与就位道一致 最好在髓壁近远中端牙本质内各做一针道
0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm
0.2~0.5mm 0.5~1mm 1.0~1.5mm 1.5~2.0mm 都不正确
0.2~0.5mm 0.5~1mm 1.0~1.5mm 1.5~2.0mm 都不正确
0.2~0.5mm 0.5~1mm 1.0~1.5mm 1.5~2.0mm
0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm
0.5~1mm 1.5~2.0mm 0.2~0.5mm 1.0~1.5mm
0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm
0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm
0.5~1mm 1.0~1.5mm 0.2~0.5mm 1.5~2.0mm 都不正确
一般按箱状洞形制备 髓壁应达牙本质内 髓壁应平 龈、切、近中、远中四壁皆应平行于釉柱方向与就位道一致 最好在髓壁近远中端牙本质内各做一钉道
0.2~0.5mm 0.5~1mm 1.0~1.5mm 1.5~2.0mm 都不正确
0.2~0.5mm 0.5~1mm 1~1.5mm 1.5~2.0mm 2~2.5mm