Comparison of the accuracy of surgical guided template produced from intraoral scan technique and model scan technique for implantation using computer assisted implant surgery

Abstract

Objectives: To compare the accuracy of implant position placed by CAIS technique using surgical guided template produced by intraoral scan and model scan.

Materials and methods: Patients who needed single tooth implant restoration were enrolled in this study and devided into two groups randomly according to the surface scan technique (n=30 each group). Intraoral scans were done using the Trios Scanner (3shape). While, diagnostic casts were scanned by D900L lab scanner (3shape). The templates were design by the clinician using coDiagnostiX software (Dental Wings Inc.). Implant surgery were performed according to fully CAIS protocol. CoDiagnostiX software was used to compare the deviations between planned and placed implant.

Results: Total of 60 implants were treated. The average angular deviation was 2.41°±1.48° and 3.23°±2.09°, the average 3D deviation at platform was 0.87±0.49 mm and 1.01±0.53 mm, while, the average 3D deviation at apex was 1.10±0.53 mm and 1.38±0.68 mm for intraoral scan group and model scan group respectively. Nevertheless, there was no statistically significant difference between groups (P > .05).

Conclusion: The results of this study demonstrated that the accuracy of intra-oral scan technique was similar to model scan technique in all implant dimensions and axis for computer assisted implant surgery.