RT Journal Article
T1 Impact of scanning interruptions on accuracy of implant-supported full-arch scans: An in-vitro pilot study
A1 Limones Burgos, Álvaro
A1 Çakmak, Gülce
A1 Fonseca, Manrique
A1 Roccuzzo, Andrea
A1 Cobo-Vázquez, Carlos
A1 Gómez-Polo, Miguel
A1 Molinero-Mourelle, Pedro
AB Purpose: To assess the impact of involuntary interruptions (simulating tracking loss by moving the scanner out of its focal distance) and voluntary interruptions (pressing the scanner’s turn-on button) on the accuracy of implantsupported full-arch scans using an intraoral scanner (TRIOS 5, version 22.1.10; 3Shape; Copenhagen, Denmark). Materials and Methods: An edentulous model with four implants was digitized with an industrial scanner (Artec Micro II; Artec 3D) to create a reference scan. Four groups (n = 30) were established based on the number of interruptions during scanning: Zero Group (no interruptions; control group), 6-V Group (six voluntary interruptions), 6-I Group (six involuntary interruptions), and 12-I Group (twelve involuntary interruptions). Primary outcome was accuracy assessed by the Root Mean Square (RMS) method. Secondary outcomes included scanning time and the number of photograms. Data were analyzed using one-way ANOVA and post hoc Tukey multiple comparison tests (α=0.05). Results: A total of 120 digital scans were conducted. The Zero group achieved a RMS error of 291 ± 47 µm, a scanning time of 68 ± 6s, and 1320 ± 129 photograms. 6-V group significantly reduced RMS error (MD -102 µm [IC 95 %: -141, -63]), decreased scanning time (MD -20s [IC 95 %: -25, -17]), and reduced photograms (MD -415 photograms [IC 95 %: -506, -324]) compared to the control group (P.05). Conclusions: Voluntary interruptions during scanning, achieved by pressing the scanner’s turn-on button, appear to enhance accuracy due to image preprocessing, while involuntary interruptions had no significant impact on the accuracy of implant-supported full-arch scans. Clinical Significance: Voluntary stop during scanning implant-supported full-arches may result in better-fitting prostheses owing to higher scan accuracy and efficiency.
PB Elsevier
SN 0300-5712
YR 2025
FD 2025-02-01
LK https://hdl.handle.net/20.500.14352/133617
UL https://hdl.handle.net/20.500.14352/133617
LA eng
NO Limones, A., Çakmak, G., Fonseca, M., Roccuzzo, A., Cobo-Vázquez, C., Gómez-Polo, M., & Molinero-Mourelle, P. (2025). Impact of scanning interruptions on accuracy of implant-supported full-arch scans: An in-vitro pilot study. Journal of dentistry, 153, 105503. https://doi.org/10.1016/j.jdent.2024.105503
DS Docta Complutense
RD 9 mar 2026