The effect of the distance from the implant-abutment interface to the porcelain-abutment bonded interface on marginal bone loss: a 4-5 year retrospective study
XIA Xun, WEI Zhenyu, HU Changqi, et al
Chinese Journal of Oral Implantology . 2020, (4): 161 -164 .  DOI: 10.12337/zgkqzzxzz.2020.12.004