Preliminary analysis of minimally invasive extraction and ridge preservation in maxillary molar with bone defect corresponding to the sinus floor due to severe periodontal lesions:a case analysis
Wei Ning, Xu Tao, Hu Wenjie, Liu Yunsong
Chinese Journal of Oral Implantology . 2021, (2): 96 -101 .  DOI: 10.12337/zgkqzzxzz.2021.04.004