Sorrentino, R., G. Ruggiero, R. Leone, M. Ferrari, and F. Zarone. “Area Accuracy Gradient and Artificial Markers: a Three-Dimensional Analysis of the Accuracy of IOS Scans on the Completely Edentulous Upper Jaw”. Journal of Osseointegration, vol. 13, no. s4, Dec. 2021, pp. S257-S264, doi:10.23805/JO.2021.13.S04.1.