Accuracy of dental implant placement with computer-guided surgery: a retrospective cohort study

Abstract

Background The aim of this study was to assess the accuracy of virtual planning of computer-guided surgery based on the actual outcomes of clinical dental implant placement. Methods This retrospective study enrolled patients among whom implant treatment was planned using computer-guided surgery with cone beam computed tomography (CBCT). The patients who received implant according to the guide with the flapless and flapped approach were classified as group 1 and 2, respectively, and the others who could not be placed according to the guide were allocated to the drop-out group. The accuracy of implant placement was evaluated with the superimposition of CBCT. Results We analyzed differences in the deviated distance of the entrance point and deviated angulation of the insertion of implant fixtures. With regard to the surgical approach, group 2 exhibited greater accuracy compared to group 1 in deviation distance (2.22 ± 0.88 and 3.18 ± 0.89 mm, respectively, P < 0.001) and angulation (4.27 ± 2.30 and 6.82 ± 2.71°, respectively, P = 0.001). The limitations of guided surgery were discussed while considering the findings from the drop-out group. Conclusions Computer-guided surgery demonstrates greater accuracy in implant placement with the flapless approach. Further research should be conducted to enhance the availability of guides for cases with unfavorable residual bone conditions.

Die implantatprothetische Rehabilitation von Tumorpatienten unter Berücksichtigung digitaler Operationsplanungsmethoden

“…Im klinischen Alltag bedeutet dies bei der konventionellen Implantatchirurgie ein invasiveres chirurgisches Vorgehen, da Strukturen dargestellt werden müssen, um die morphologischen Verhältnisse klinisch besser abschätzen zu können [33]. Ein ausgedehnter Operationsumfang ist aber mit Blick auf die beschriebene Wundheilungsproblematik bei bestrahlten Patienten grundsätzlich zu vermeiden [34].…”

“…Mit Blick auf die umfangreiche Methodik der digitalen Implantatchirurgie belegt die Literatur signifikant präzisere und akkuratere Implantationsergebnisse bei gesunden Patienten [27,32,33]. Die vertikale Deviation bei der digitalen Implantatchirurgie betrug durchschnittlich 0,19 mm mit einer maximalen Abweichung von 0,44 mm [32].…”

Computer-Aided Design and Computer-Aided Modeling (CAD/CAM) for Guiding Dental Implant Surgery: Personal Reflection Based on 10 Years of Real-Life Experience

“…Although several studies have demonstrated the accuracy of CAS technology in dental implant surgery and have claimed the superiority of this approach over traditional techniques, to date, only a meta-analysis has been published reporting on the comparison of computer-assisted technology to the conventional freehand technique and found no significant differences between the two approaches for marginal bone loss, mechanical and biological complications and implant survival rate [ 10 , 11 , 12 , 13 , 14 , 15 ]. However, these results should be interpreted with caution given the lack of homogeneity that limited this systematic review.…”

Quality assurance and long‐term stability of a novel 3‐in‐1 X‐ray system for brachytherapy

“…[1][2][3][4] These 3-in-1 systems are principally capable of covering a wide range of imaging tasks. For instance, broad applications have already been reported for head-neck surgery, 1 maxillofacial surgery, 5,6 dentistry, 7,8 and radiotherapy. [9][10][11][12] To ensure performance stability in clinical operation, conducting technical quality assurance (QA) is essential.…”