1. Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital Sun Yat‐Sen University Guangzhou China
2. Department of Oral and Maxillofacial Surgery, College of Stomatology Guangxi Medical University Nanning China
3. Center of Oral Implantology, Stomatological Hospital Southern Medical University Guangzhou China
4. Department of Stomatology The Third Affiliated Hospital, Sun Yat‐Sen University Guangzhou China