Acknowledgement
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No.2020R1C1C1008201). PDRN, OsteonXeno and Collagen Membrane 2 were kindly provided by Genoss, Suwon, Korea. Dental implants were kindly provided by Dentium, Seoul, Korea.
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