Valente, M. G. S., A. C. L. Faria, R. F. Ribeiro, and S. S. Rocha. “Effect of Changes in Implants and Cyclic Loading in the Abutment Screw Loosening.”. Journal of Osseointegration 12, no. 2 (April 16, 2020): 167-171. Accessed July 12, 2020. https://www.journalofosseointegration.eu/index.php/jo/article/view/293.