Cortellini P, Stalpers G, Mollo A, Tonetti MS, et al. Periodontal regeneration versus extraction and dental implant or prosthetic
replacement of teeth severely compromised by attachment loss to the apex: a
randomized controlled clinical trial reporting 10-year outcomes, survival
analysis and mean cumulat J Clin Periodontol 2020 Apr 6. doi: 10.1111/jcpe.13289.
PMID: 32249446