Comparative study of the accuracy of single tooth implants placed between static and mental computer assisted surgery

Abstract

Objective: This randomized controlled clinical trial aimed to compared the accuracy of implant position between static and mental Computer Assisted Implant Surgery (CAIS) in single tooth gap.

Materials and methods: 52 patients who received 60 implants in single tooth gap, randomized equally into static or mental CAIS. In static CAIS group, data from CBCT scan and data from intraoral or model scan were utilised for the three dimensional virtual planning implant positioning and desiring of a three dimensional surgical guide in implant planning software. Implant bed preparation and implant insertion were done through the three dimensional surgical guide. Implants in the mental CAIS group were virtually planned in the same software, but surgery was done in freehand manner. After the surgery, postoperative CBCT was superimposed onto preoperative CBCT. Deviation in angle, implant shoulder and apex between planned and final implant positions were measured and compared in the same software.

Results: In static CAIS group, mean angle deviation, 3D deviation at implant shoulder and implant apex were 3.1 ± 2.3°, 1.0 ± 0.6 mm and 1.3 ± 0.6 mm, respectively. In mental CAIS group, mean angle deviation, 3D deviation at implant shoulder and implant apex were 6.9 ± 4.4°, 1.5 ± 0.7 mm and 2.1 ± 1.0 mm respectively. Statistically significant differences were found in all dimensions between two groups.

Conclusion: Static CAIS demonstrated higher accuracy of implant positioning compared to the mental CAIS in single tooth gap.