2025/06/11 by Luís Azevedo, Andrea Laureti, Tiago Marques +4
paper · doi:10.1111/clr.14463
ABSTRACT Objective To evaluate the interaction between intraoral scan body (ISB) type, operator, and intraoral scanner (IOS) selection on the trueness of complete‐arch digital implant impressions. This study also compared horizontal ISBs (H‐ISBs) and vertical ISBs (V‐ISBs) across four IOS devices. Material and Methods Digital impressions of a definitive mandibular cast with six multi‐unit analogs were made using four H‐ISBs from different manufacturers (denoted as H‐NB, H‐NS, H‐M6, and H‐SF), with a V‐ISB (V‐EA) as the reference. Each ISB was scanned using a desktop scanner and by two operators who scanned each ISB system 10 times using four IOS devices i5D, PS, T3, T4, generating 400 digital impressions. Deviations were measured using root‐mean‐square (RMS) error ( α = 0.05). Results All independent variables (operator, IOS, ISB) significantly affected trueness ( p Conclusions Complete‐arch digital impressions are influenced by ISBs, IOSs, and operators. H‐ISBs demonstrated better trueness and consistency across IOSs and operators.