压膜保持器减缓下颌后牙种植单冠与天然邻牙邻接触丧失的效果
曾百进1, 果莹2, 余日月2,Δ

Effect of the vacuum-formed retainer on preventing the proximal contact loss between implant supported crown and adjacent natural teeth
ZENG Bai-jin1, GUO Ying2, YU Ri-yue2,Δ
测量方法