To Assess the Effect of Material Type, Implant System- Specific Scan Body and Third-party Scan Body on the Accuracy of Digital Implant Impressions Following Sterilization And Reuse – In Vitro Study

Manish Kumar Bairwa; Rajesh Kumar; Sunil Kumar M.V,; Rakshit Sureka

doi:10.36948/ijfmr.2026.v08i04.83174

To Assess the Effect of Material Type, Implant System- Specific Scan Body and Third-party Scan Body on the Accuracy of Digital Implant Impressions Following Sterilization And Reuse – In Vitro Study

Author(s)	Dr. Manish Kumar Bairwa, Prof. Dr. Rajesh Kumar, Dr. Sunil Kumar M.V,, Dr. Rakshit Sureka
Country	India
Abstract	Abstract Background: Digital implant impressions rely on scan bodies that require sterilization between clinical uses. The combined effects of scan body material composition, manufacturer origin, and repeated sterilization cycles on impression accuracy remain inadequately characterized. Objective: To evaluate the influence of scan body material (titanium vs. PEEK), manufacturer origin (original equipment manufacturer [OEM] vs. third-party), and repeated sterilization-reuse cycles (0, 1, 5, and 10 cycles) on the accuracy of digital implant impressions. Methods: Four scan body groups were evaluated: OEM titanium, OEM PEEK, third-party titanium, and third-party PEEK. A standardized master model with two Dentium Superline implants was used. Each group underwent baseline scanning and repeated cycles of autoclave sterilization (134°C, 2.1 bar, 5 minutes), connection at 10 Ncm torque, intraoral scanning with Primescan intraoral scanner, and disconnection. Ten scans per group-condition combination yielded 160 total scans. Accuracy was assessed using Cloud Compare software through three-dimensional superimposition, measuring root mean square (RMS) error, Euclidean distance deviation, and angular deviation. Statistical analysis employed one-way ANOVA and paired t-tests (α = 0.05). Results: Scan body material, manufacturer origin, and sterilization cycles significantly affected impression accuracy (p < 0.05). PEEK scan bodies demonstrated superior dimensional stability across sterilization cycles, with RMS error ranging from 0.150 ± 0.045 mm (cycles 3-4) to 0.273 ± 0.139 mm (cycles 9-10). Titanium scan bodies exhibited greater variability, with RMS error increasing from 0.166 ± 0.059 mm (cycles 1-2) to 0.381 ± 0.210 mm (cycles 9-10). OEM scan bodies generally showed lower RMS error in advanced reuse cycles compared to third-party alternatives, though well-manufactured third-party PEEK scan bodies demonstrated comparable performance. All groups maintained deviations within clinically acceptable limits (<50 µm) after ten sterilization cycles. Angular deviations increased more substantially than linear deviations in later cycles, particularly for titanium scan bodies (0.668 ± 0.388° at cycles 9-10). Conclusions: Material composition exerted a stronger influence on accuracy than manufacturer origin. PEEK scan bodies demonstrated greater consistency and dimensional fidelity following repeated sterilization. Controlled reuse of scan bodies up to ten cycles is clinically acceptable when proper protocols are implemented. Well-manufactured third-party PEEK scan bodies may offer cost-effective alternatives to OEM components without compromising accuracy.
Keywords	Digital Impression, Scan Body, Sterilization, PEEK, Titanium, Implant Dentistry, Accuracy, Trueness, Precision
Field	Medical / Pharmacy
Published In	Volume 8, Issue 4, July-August 2026
Published On	2026-07-06
DOI	https://doi.org/10.36948/ijfmr.2026.v08i04.83174

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To Assess the Effect of Material Type, Implant System- Specific Scan Body and Third-party Scan Body on the Accuracy of Digital Implant Impressions Following Sterilization And Reuse – In Vitro Study

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