Microstructural and Topographical Characterization of Different Surface Treatments of a Surgical Titanium Alloy for Dental Implants

作者：Carimo Marino Leila Abdul; Deliberador Tatiana Miranda; Zielak Joao Cesar; Correr Gisele Maria; Giovanini Allan Fernando; Gonzaga Carla Castiglia^*

来源：Implant Dentistry, 2012, 21(3): 207-212.

DOI：10.1097/ID.0b013e3182566e19

• titanium alloy
• dental implants
• surface treatment
• roughness
• scanning electron microscopy
• atomic force microscopy

Objective: To perform a topographical characterization of a titanium alloy subjected to different surface treatments using roughness evaluation, scanning electron microscopy, and atomic force microscopy.
Materials and Methods: For each group, 6 discs of a titanium alloy had their surfaces modified by 4 treatments. All surfaces were blasted with Al2O3, cleaned, and the specimens were divided into 4 groups: G1, immersion in a standardized acid solution (SAS) (control group); G2, immersion in acetone, followed by immersion in SAS; G3, immersion in acetone, followed by immersion in SAS, followed by immersion in nitric acid; G4, immersion in acetone, followed by immersion in SAS, followed by immersion in sulfuric acid. Roughness parameters were determined with a roughness tester, and data were statistically analyzed using analysis of variance and Tukey tests (alpha = 5%).
Results: Regarding the roughness parameters, no significant differences were found. Scanning electron microscopy and atomic force microscopy showed irregular surfaces with the presence of particles uniformly deposited on the surfaces.
Conclusion: A similar roughness pattern was created for all the groups. The images and topographic profiles indicated that all the groups showed high levels of roughness. (Implant Dent 2012;21:207-212)

• 出版日期2012-6