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-jin
1
, GUO Ying
2
, YU Ri-yue
2,
Δ
种植单冠远中邻接触丧失率在两组中的比较