Department of Oral and Maxillofacial Surgery, Hefei Stomatological Hospital, Hefei, China
College of Stomatology, Anhui Medical University, Hefei, China
Alveolar Surgery of Chen Zhifang Famous Doctor Studio, Hefei, China
Copyright © 2019 Zhifang Chen, Wei Chen et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.