A.Nance弓
B.TPA
C.Nudger
D.TPA+联合牵引头帽
E.Nance弓+低位牵引头帽
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆(牙合)2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆(牙合)2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆(牙合)2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91%,AN
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91%,AN
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆(牙合)2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91%,AN
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91%,AN
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91%,AN
[单选题]男,17岁。口腔卫生状况良好,磨牙中性关系,覆2mm,覆盖4mm,上牙列拥挤5mm,下牙列拥挤5mm,Bolton指数前牙比79%,全牙比91%,AN