In Vitro Comparison of Surgical Implant Placement Accuracy Using Guides Fabricated by Three Different Additive Technologies

Chuchai Anunmana,Sirichai Kiattavorncharoen,Chananchida Ueawitthayasuporn,Prakan Thanasrisuebwong

doi:10.3390/app10217791

Abstract

Various three-dimensional (3D) printing technologies are commercially available on the market, but the influence of different technologies on the accuracy of implant-guided surgery is unclear. Thus, three printing technologies: Stereolithographic (SLA), Digital light processing (DLP), and Polyjet were evaluated in this study. An entire 30 polyurethane models replicated the clinical situation. Ten surgical guides were printed by SLA, DLP, and PolyJet. Then, implant-guided surgery was performed, and their accuracy outcomes were measured concerning angular deviation, 3D deviation at the entry point, and apex. On top of that, the total processing time was also compared. For the angular deviation, the mean deviation was not statistically significant among all technologies. For the 3D deviation, PolyJet was statistically more accurate than DLP (p = 0.002) and SLA (p = 0.017) at the entry point. PolyJet was also statistically more accurate than DLP (p = 0.007) in regards to 3D deviation at the apex. Within the limitation of this study, the deviations from the experiment showed that PolyJet had the best outcome regarding the 3D deviations at the entry point and at the apex, meanwhile, the DLP printer had the shortest processing time.

Highlights

Over the last few decades, computer-aided design (CAD) and computer-aided manufacturing (CAM) has been improved significantly for dental applications [1]
The development of CAD/CAM innovates the contemporary approach called “3D printing”, which is considered state-of-the-art technology for manufacturing surgical guides as it reduces production time and operating costs significantly while possessing superior capabilities of fabricating complex structural parts compared with traditional approaches [2,3]
3D deviation the lowest entry point, PolyJet achieved a lower mean of the deviation than that of the other

Summary

Introduction

Over the last few decades, computer-aided design (CAD) and computer-aided manufacturing (CAM) has been improved significantly for dental applications [1]. The development of CAD/CAM innovates the contemporary approach called “3D printing”, which is considered state-of-the-art technology for manufacturing surgical guides as it reduces production time and operating costs significantly while possessing superior capabilities of fabricating complex structural parts compared with traditional approaches [2,3]. Additive manufacturing offers lower costs and has a higher capability in terms of complexity and precision. Thereby, additive manufacturing is gaining popularity rapidly in dentistry. The production process of additive techniques have well-established steps and.

Results

Discussion

Conclusion