A novel technique for tailored surface modification of dental implants : a step wise approach based on plasma immersion ion implantation

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A novel technique for tailored surface modification of dental implants : a step wise approach based on plasma immersion ion implantation

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Publication Article, peer reviewed scientific
Title A novel technique for tailored surface modification of dental implants : a step wise approach based on plasma immersion ion implantation
Author(s) Meirelles, Luiz ; Tieko Uzumaki, Emilia ; Cavalcanti Lima, Jose Henrique ; Muller, Carlos Alberto ; Albrektsson, Tomas ; Wennerberg, Ann ; Lambert, Carlos Salles
Date 2013
English abstract
OBJECTIVES: A novel technique based on plasma immersion ion implantation (PIII) is presented to modify titanium implant surfaces. MATERIALS AND METHODS: Initially, the implants are cleaned with argon to remove contaminants and the nanostructures are created by the bombardment of the surface with a mix of noble gases. Desired crystal structure of the titanium is obtained by the implantation of oxygen on the contaminant-free surface with particular nanostructures. RESULTS: In this study, turned implants modified by PIII revealed a high density of rutile-TiO2 nanostructures. Turned implants used as control revealed mainly microstructures and amorphous crystal structure. Surface roughness values were similar at the microscale for both turned and turned + PIII implants. Bone response was evaluated by removal torque tests of implants placed in the rabbit tibia and femur. After 4 weeks of healing, turned + PIII demonstrated higher removal torque values (P = 0.001) compared to turned implants. CONCLUSIONS: The presence of rutile-TiO2 nanostructures may explain the improved bone formation to turned + PIII implants.
DOI http://dx.doi.org/10.1111/j.1600-0501.2011.02352.x (link to publisher's fulltext)
Publisher Wiley
Host/Issue Clinical Oral Implants Research;4
Volume 24
ISSN 1600-0501
Pages 461–467
Language eng (iso)
Subject(s) Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/16756 (link to this page)

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