RT Journal Article
T1 Influence of the ambient color lighting on the accuracy of complete arch implant scans recorded by using two intraoral scanners
A1 Ochoa López, Gastón
A1 Revilla León, Marta
A1 Gómez Polo, Miguel Ángel
AB Objectives: To measure the influence of scanning pattern on the accuracy, time, and number of photograms of complete-arch intraoral implant scans.Methods: A maxillary edentulous patient with 7 implants was selected. The reference implant cast was obtained using conventional methods (7Series Scanner). Four groups were created based on the scanning pattern used to acquire the complete-arch implant scans by using an intraoral scanner (IOS) (Trios4): manufacturer’s recom- mended (Occlusal-Buccal-Lingual (OBL)), zig-zag (Zig-zag), circumferential (Circumf), and novel pattern that included locking an initial occlusal scan (O-Lock group) (n = 15). Scanning time and number of photograms were recorded. The linear and angular measurements were used to assess scanning accuracy. One-way ANOVA and Tukey tests were used to analyze trueness, scanning time, and number of photograms. The Levene test was selected to assess precision (α=0.05).Results: Statistically significant differences in trueness were detected among OBL, Zig-zag, Circumf, and O-Lock regarding linear discrepancy (P < 0.01), angular discrepancy (P < 0.01), scanning time (P < 0.01), and number of photograms (P < 0.01). The O-Lock (63 ± 20 μm) showed the best linear trueness with statistically significant differences (P < 0.01) with Circumferential (86 ± 16 μm) and OBL (87 ± 19 μm) groups. The O-Lock (93.5 ± 13.4 s, 1080 ± 104 photograms) and Circumf groups (102.9 ± 15.1 s, 1112 ± 179 photograms) obtained lower scanning times (P < 0.01) and number of photograms (P < 0.01) than OBL (130.3 ± 19.4 s, 1293 ± 161 pho- tograms) and Zig-zag (125.7 ± 22.1 s, 1316 ± 160 photograms) groups.Conclusions: The scanning patterns tested influenced scanning accuracy, time, and number of photograms of the complete-arch scans obtained by using the IOS tested. The zig-zag and O-Lock scanning patterns are recom- mended to obtain complete-arch implant scans when using the selected IOS.
PB Elsevier
SN 0022-3913
YR 2024
FD 2024-04-30
LK https://hdl.handle.net/20.500.14352/109317
UL https://hdl.handle.net/20.500.14352/109317
LA eng
NO Ochoa-López G, Revilla-León M, Gómez-Polo M. Influence of the ambient color lighting on the accuracy of complete arch implant scans recorded by using two intraoral scanners. J Prosthet Dent. 2024 Apr 22:S0022-3913(24)00224-5. doi: 10.1016/j.prosdent.2024.03.030. Epub ahead of print. PMID: 38653690.
DS Docta Complutense
RD 8 abr 2025