Titanium Implants Texturization Using Vibration Assisted Microturning

• Grant number: 24/23820-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2025
• End date: May 31, 2026
• Field of knowledge: Engineering - Mechanical Engineering - Manufacturing Processes
• Principal Investigator: Alessandro Roger Rodrigues
• Grantee: Daniel Haruyuki Momo Vespa
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

The surface texture of dental implants is an important factor for their integration into the human body, especially in patients with less than ideal oral health conditions. Several treatments can be used to optimize this surface, however, the use of vibration-assisted machining can allow texturing using lathes embedded with controlled vibration systems, without the need for specific machines and procedures for this purpose. However, there are few studies relating surface characteristics and osseointegration, especially through roughness parameters distinct from the average and maximum roughness. This research, therefore, aims to reveal correlations between these characteristics and bone matrix formation. The texturing of several titanium specimens will be performed using different cutting parameters (tool feed and depth of cut) and controlled vibration conditions (amplitude and frequency). Subsequently, the surfaces will be analyzed in detail considering planar roughness parameters of amplitude, spatial, hybrid and functional, according to ISO 25178 (2021), relating them to wettability, surface free energy and cellular adhesion, proliferation and differentiation events (in-vitro tests), allowing these results to be used in future research and in the design of dental implants. This proposal is a specific experimental fraction of the doctoral work entitled "Application of Numerical Optimization Methods in the Design and Manufacturing of Dental Implants for Maximizing Osseointegration" by PhD candidate Tarcísio Ladeia de Oliveira.