Research Information System
Australian Dental Journal, vol.71, no.1, pp.49-58, 2026 (SCI-Expanded, Scopus)
Purpose: The purpose of this in vitro study was to evaluate the influence of implant scan body material and its exposed portion on ti-base (titanium-based) positioning accuracy. Material and Methods: In this study, a total of 14 diagnostic casts were created using two different scan bodies in 7 subgroups, ranging from the bone level to a depth of 6 mm. The diagnostic casts were scanned using a desktop scanner (Ceramill Map 600+, Amann Girrbach, Austria) for reference. The experimental data were scanned five times with an intraoral scanner (TRIOS 5, 3Shape, Copenhagen, Denmark) in each group (n = 70). All scan data were transferred to CAD software (Exocad, DentalCAD 3.1 Rijeka, Darmstadt, Germany). The ti-base positions were determined after the scan body image matching. The ti-base position deviations were analysed in three dimensions. A two-way ANOVA test was used to compare data according to depth and material variables. Results: The depth factor (p = 0.000) and the interaction between depth and material (p = 0.006) had statistically significant effects on the accuracy of ti-base positioning, whereas the material factor did not show a significant effect (p = 0.559). Conclusions: As the exposure of the scan bodies decreased, the obtained deviation values tended to increase for both scan body materials.