Evaluation of Accuracy in Digital Impressions Using Compatible Scanbodies in Bone-Level Implants: An In Vitro Study
TL;DR
The type of scan body did not significantly affect the accuracy of digital impressions for bone-level implants and the mean and standard deviation of Root Mean Square Eror (RMSE) were calculated.
Abstract
Purpose: Digital impression techniques in dentistry have emerged as a precise alternative to conventional methods. The accuracy of this process depends on multiple factors, including the design and material of the scan body, the type of scanner used, and the implant conditions. Materials and Methods: Four types of scan bodies from Dentis, Dentium, Dio, and Novodent were evaluated across 40 samples (10 per group). A reference model was first obtained with an industrial scanner (T-SCAN Hawk 2), and the samples were then scanned with an itraoral scanner (Medit i700). The resualting STL files were aligned in 3-Matic, and geometric deviations from the reference model were measured using the Best-Fit Alignment algorithm. Data were analyzed in SPSS (version 27) using one-way ANOVA with Turkey’s post hoc test, with significance set at 0.05. Results: The mean and standard deviation of Root Mean Square Eror (RMSE) were calculated for four scan bodies: Dentis, Dentinum, Dio, and Novodent. The reference group, Dentis, had a mean RMSE of 0.21± 0.10. Dentium showed a similar RMSE (0.21±0.08), indicating comparable accuracy to Dentis (P˃0.05). In contrast, Dio and Novodent showed lower RMSE values (0.14±0.02 and 0.15±0.06, respectively), indicating higher accuracy, although the differences were not statistically were not statistically significant (P˃0.05). Conclusion: The type of scan body did not significantly affect the accuracy of digital impressions for bone-level implants (P˃0.05).