An experimental analysis of laser machining for dental implants

Da Additive Manufactoring.
Authors and full affiliations: Michela Dalle Mura, Gino Dini, Michele Lanzetta, Andrea Rossi
Keywords: Laser Machining; Subtractive process; Dental implants; Ceramics; Polymers
Purpose: the aim of this work is to experimentally analyse the potential of the laser subtractive process as a new method for the creation of dental implants.
Design/methodology/approach: application of a subtractive process generating a high concentration of energy density, the heat focuses on an extremely small superficial portion. The material molecules, thanks to a vibrational motion, overheat till the cutting temperature.
Findings: the use of the laser technique allows for better and more precise results
Limitations: the groove shape obtained with the laser is less circular than that obtained with other methods
Practical implications: fast and precise process
Originality/value: this method offers a competitive advantage over conventional materials by means of the increasing efficiency of the applications for groove fabrication on biomaterials.
Graphical abstract:
Millin vs Laser
Main references: [1] Çelen S, Özden, H. Laser-induced novel patterns: As smart strain actuators for new-age dental implant surfaces. Applied Surface Science 2012; 263. p: 579-585.[2] Minamizato T. Slip-cast zirconia dental roots with tunnels drilled by laser process. The Journal of prosthetic dentistry 1990; 63.6. p: 677-684.[6] Papaspyridakos P, Lal K. Complete arch implant rehabilitation using subtractive rapid prototyping and porcelain fused to zirconia prosthesis: a clinical report. The Journal of prosthetic dentistry 2008; 100.3. p: 165-172.[9] Romoli L, Tantussi G, Dini G. Layered laser vaporization of PMMA manufacturing 3D mould cavities. CIRP Annals-Manufacturing Technology 2007;56.1. p: 209-212.[10] Romoli L, Tantussi G, Dini G. Experimental approach to the laser machining of PMMA substrates for the fabrication of microfluidic devices. Optics and Lasers in Engineering 2011; 49.3. p: 419-427.
Link: https://www.sciencedirect.com/science/article/pii/S2212827117311708