Influence of scanning pattern on accuracy, time, and number of photograms of complete-arch implant scans: A clinical study

• Published in: Journal of dentistry 2024-11, Vol.150, p.105310, Article 105310
• Main Authors: Gómez-Polo, Miguel, Cascos, Rocío, Ortega, Rocío, Barmak, Abdul B., Kois, John C., Pérez-Barquero, Jorge Alonso, Revilla-León, Marta
• Format: Article
• Language: English
• Subjects: Accuracy; Computer-Aided Design; Dental Implants; Digital impression; Humans; Image Processing, Computer-Assisted - methods; Imaging, Three-Dimensional - methods; Implant scan; Intraoral scanner; Jaw, Edentulous - diagnostic imaging; Maxilla - anatomy & histology; Maxilla - diagnostic imaging; Models, Dental; Scanning pattern; Time Factors
• ISSN: 0300-5712; 1879-176X; 1879-176X
• DOI: 10.1016/j.jdent.2024.105310

To measure the influence of scanning pattern on the accuracy, time, and number of photograms of complete-arch intraoral implant scans. 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 recommended (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). Statistically significant differences in trueness were detected among OBL, Zig-zag, Circumf, and O-Lock regarding linear discrepancy (P