Helal E, Gierthmuehlen PC, Bonfante EA, Campos TMB, et al. Influence of straight versus angulated screw channel titanium bases on failure
loads of two-piece ceramic and titanium implants restored with screw-retained
monolithic crowns: An in-vitro study. Clin Oral Implants Res 2023;34:1217-1229.
PMID: 37565379