Effect of guided bone regeneration on gingival aesthetics and alveolar bone resorption of dental implants in the anterior region
QIN Kun, LIU Hong-hong, ZHANG Run-yu, ZHANG Zhi-hong
China Journal of Oral and Maxillofacial Surgery . 2020, (3): 236 -239 .  DOI: 10.19438/j.cjoms.2020.03.009