Prediction of tribocorrosion processes in titanium-based dental implants using acoustic emission technique: Initial outcome

Autor(es)

Bara, Valentim A. R. ^[1] ; Ramachandran, Remya Ampadi ^[2] ; Matos, Adaias Oliveira ^[1] ; Badhe, Ravindra Vijaykumar ^[3] ; Grandini, Carlos R. ^[4] ; Sukotjo, Cortino ^[5] ; Ozevin, Didem ^[6] ; Mathew, Mathew ^{[5, 2, 3]}

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Piracicaba Dent Sch, Dept Prosthodont & Periodontol, Piracicaba, SP - Brazil

^[2] Univ Illinois, Dept Bioengn, Chicago, IL 60607 - USA

^[3] UIC Rockford, Dept Biomed Sci, Rockford, IL - USA

^[4] Univ Estadual Paulista UNESP, Lab Anelasticidade & Biomat, Bauru, SP - Brazil

^[5] Univ Illinois, Coll Dent, Dept Restorat Dent, Chicago, IL - USA

^[6] Univ Illinois, Dept Civil Mat & Environm Engn, Chicago, IL - USA

• Tipo de documento: Artigo Científico
• Fonte: Materials Science & Engineering C-Materials for Biological Applications; v. 123, APR 2021.
• Citações Web of Science: 0

Resumo

The use of dental implants is growing rapidly for the last few decades and Ti-based dental implants are a commonly used prosthetic structure in dentistry. Recently, the combined effect of corrosion and wear, called tribocorrosion, is considered as a major driving process in the early failure of dental implants. However, no previous study has reported the prediction of tribocorrosion processes in advance. Therefore, this study is a novel investigation on how the acoustic emission (AE) technique can predict tribocorrosion processes in commercially pure titanium (cpTi) and titanium-zirconium (TiZr) alloys. In this study, tribocorrosion tests were performed under potentiostatic conditions and AE detection system associated with it captures AE data. Current evolution and friction coefficient data obtained from the potentiostatic evaluations were compared with AE absolute energy showcased the same data interpretation of tribocorrosion characteristics. Other AE data such as duration, count, and amplitude, matched more closely with other potentiostatic corrosion evaluations and delivered more promising results in the detection of tribocorrosion. Hence, AE can be consider as a tool for predicting tribocorrosion in dental implants. Experimental results also reveal Ti5Zr as one of the most appropriate dental implant materials while exposing Ti10Zr's lower effectiveness to withstand in the simulated oral environment. (AU)

• Processo FAPESP: 20/05231-4 - Desenvolvimento de um novo hidrogel termosensitivo para liberação controlada de drogas direcionado a prevenção e ao tratamento de inflamações peri-implantares
• Beneficiário: Valentim Adelino Ricardo Barão
• Modalidade de apoio: Auxílio à Pesquisa - Regular