使用口外矫形力移动下颌,下颌每侧可接受的力值是
A.500~1000g
B.500~800g
C.340~450g
D.800~1100g
E.1200~1700g
使用口外正畸力移动牙齿,如果推上颌第一磨牙向远中移动,其力值范围是A.500~1000gB.500~800gC.340~450gD.800~1100gE.1200~1700g
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口外前方牵引的力值为A.500~1000gB.500~800gC.340~450gD.800~1100gE.1200~1700g
口外矫形力移动上颌骨,上颌可接受的矫形力范围是A.500~1000gB.500~800gC.340~450gD.800~1100gE.1200~1700g
要抑制上颌向前生长或推上颌磨牙向远中,牵引力一般为每侧A.500~1000gB.500~800gC.340~450gD.800~1100gE.1200~1700g
口外矫形力下颌可接受的力值是A、340~450gB、500~1000gC、600~700gD、800~1100gE、1200~1700g
口外矫形力下颌可接受的力值是A.340~450g B.1200~1700g C.800~1100g D.600~700g E.500~1000g
颌骨的矫形力一般为A.500~1000g B.500~800g C.500~1200g D.500~600g E.600~800g