Mechanical Surface Treatments of Ti-6Al-4V Miniplate Implant Manufactured by Electrical Discharge Machining (TECHNICAL NOTE)

Authors

1 Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, Jawa Barat, Indonesia

2 Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Malang, Malang 65145, Jawa Timur, Indonesia

3 Cleft and Craniofacial Center Cipto Mangunkusumo Hospital - Plastic and Reconstructive Surgery Division, Department of Surgery, Medical Faculty, Universitas Indonesia, Jl. Diponegoro 71, Jakarta Pusat 10430, Indonesia

Abstract

Present work aims at multi-mechanical surface treatment of Ti-6Al-4V based-miniplate implant manufactured by electrical discharge machining (EDM) for biomedical use. Mechanical surface treatment consists of consequent use of ultrasonic cleaning, rotary tumbler polishing, and brushing. Surface layers are analyzed employing scanning electron microscopy and energy dispersive X-ray spectroscopy. All methods employed are capable of removing surface layer of transformed material created by EDM. These mechanical methods can provide the surface roughness of the miniplate in moderately rough category. Ultrasonic cleaning and rotary tumbler polishing took the significant increase of surface roughness with 90 and 67%, respectively. Furthermore, the brushing technique became the best benchmark for reducing the contamination of Cupper (Cu) on the surface of Ti-6Al-4V implants compared to ultrasonic cleaning and rotary tumbler polishing which hardly gave any impact and took the toxicity effect on both MTT Assay and direct toxicity tests.

Keywords


1.     Prasad, S., Ehrensberger, M., Gibson, M.P., Kim, H. and Monaco Jr, E.A., "Biomaterial properties of titanium in dentistry", Journal of Oral Biosciences,  Vol. 57, No. 4, (2015), 192-199.

2.     Geetha, M., Singh, A.K., Asokamani, R. and Gogia, A.K., "Ti based biomaterials, the ultimate choice for orthopaedic implants–a review", Progress in Materials Science,  Vol. 54, No. 3, (2009), 397-425.

3.     Azadi, M., Rouhaghadam, A.S. and Ahangarani, S., "A review on titanium nitride and titanium carbide single and multilayer coatings deposited by plasma assisted chemical vapor deposition", International Journal of Engineering-Transactions B: Applications,  Vol. 29, No. 5, (2016), 677-687.

4.     El-Hofy, H.A.-G., "Fundamentals of machining processes: Conventional and nonconventional processes, CRC press,  (2013).

5.     Azadi Moghaddam, M. and Kolahan, F., "Optimization of edm process parameters using statistical analysis and simulated annealing algorithm", International Journal of Engineering, Transactions A: Basics, Vol. 28, No. 1, (2015), 154-163.

6.     Le Guéhennec, L., Soueidan, A., Layrolle, P. and Amouriq, Y., "Surface treatments of titanium dental implants for rapid osseointegration", Dental Materials,  Vol. 23, No. 7, (2007), 844-854.

7.     Jemat, A., Ghazali, M.J., Razali, M. and Otsuka, Y., "Surface modifications and their effects on titanium dental implants", BioMed Research International,  Vol. 2015, (2015).

8.     Wennerberg, A. and Albrektsson, T., "Effects of titanium surface topography on bone integration: A systematic review", Clinical oral Implants Research,  Vol. 20, No., (2009), 172-184.

9.     Vandamme, K., Naert, I., Vander Sloten, J., Puers, R. and Duyck, J., "Effect of implant surface roughness and loading on peri-implant bone formation", Journal of Periodontology,  Vol. 79, No. 1, (2007), 150-157.

10.   Grassi, S., Piattelli, A., de Figueiredo, L.C., Feres, M., de Melo, L., Iezzi, G., Alba Jr, R.C. and Shibli, J.A., "Histologic evaluation of early human bone response to different implant surfaces", Journal of Periodontology,  Vol. 77, No. 10, (2006), 1736-1743.

11.   Ellingsen, J.E., Johansson, C.B., Wennerberg, A. and Holmén, A., "Improved retention and bone-to-implant contact with fluoride-modified titanium implants", International Journal of Oral & Maxillofacial Implants,  Vol. 19, No. 5, (2004), 659-666.

12.   Sul, Y.T., Kang, B.S., Johansson, C., Um, H.S., Park, C.J. and Albrektsson, T., "The roles of surface chemistry and topography in the strength and rate of osseointegration of titanium implants in bone", Journal of Biomedical Materials Research Part A, Vol. 89, No. 4, (2009), 942-950.

13.   Jameson, E.C., "Electrical discharge machining, Society of Manufacturing Engineers,  (2001).

14.   Champy, M., Härle, F. and Terry, B.C., "Atlas of craniomaxillofacial osteosynthesis: Microplates, miniplates, and screws, Thieme,  (2009).

15.   Qosim, N., Supriadi, S., Whulanza, Y. and Saragih, A., "Development of ti-6al-4v based-miniplate manufactured by electrical discharge machining as maxillofacial implant", Journal of Fundamental and Applied Sciences,  Vol. 10, No. 3S, (2018), 765-775.

16.   Moghaddam, M.A. and Kolahan, F., "Improvement of surface finish when edm aisi 2312 hot worked steel using taguchi approach and genetic algorithm", International Journal of Engineering, Transactions C: Aspects,  Vol. 27, No. 3, (2013), 417-424.