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http://acervodigital.unesp.br/handle/11449/74098
- Title:
- Osseointegration assessment of chairside argon-based nonthermal plasma-treated Ca-P coated dental implants
- Universidade Estadual Paulista (UNESP)
- New York University
- Universidade Federal de Santa Catarina (UFSC)
- School of Health Sciences
- 1549-3296
- 1552-4965
- This study investigated the effect of an Argon-based nonthermal plasma (NTP) surface treatment-operated chairside at atmospheric pressure conditions applied immediately prior to dental implant placement in a canine model. Surfaces investigated comprised: Calcium-Phosphate (CaP) and CaP + NTP (CaP-Plasma). Surface energy was characterized by the Owens-Wendt-Rabel-Kaelble method and chemistry by X-ray photoelectron spectroscopy (XPS). Six adult beagles dogs received 2 plateau-root form implants (n = 1 each surface) in each radii, providing implants that remained 1 and 3 weeks in vivo. Histometric parameters assessed were bone-to-implant contact (BIC) and bone area fraction occupancy (BAFO). Statistical analysis was performed by Kruskall-Wallis (95% level of significance) and Dunn's post-hoc test. The XPS analysis showed peaks of Ca, C, O, and P for the CaP and CaP-Plasma surfaces. Both surfaces presented carbon primarily as hydro-carbon (CAC, CAH) with lower levels of oxidized carbon forms. The CaP surface presented atomic percent values of 38, 42, 11, and 7 for C, O, Ca, and P, respectively, and the CaPPlasma presented increases in O, Ca, and P atomic percent levels at 53, 12, and 13, respectively, in addition to a decrease in C content at 18 atomic percent. At 1 week no difference was found in histometric parameters between groups. At 3 weeks significantly higher BIC and BAFO were observed for CaPPlasma treated surfaces. Surface elemental chemistry was modified by the Ar-based NTP. Ar-based NTP improved bone formation around plateau-root form implants at 3 weeks compared with CaP treatment alone. © 2012 Wiley Periodicals, Inc.
- 1-Jan-2013
- Journal of Biomedical Materials Research - Part A, v. 101 A, n. 1, p. 98-103, 2013.
- 98-103
- Argon plasma
- Implant surface treatment
- In vivo
- Modified surface
- Osseointegration
- Argon plasmas
- Implant surface
- In-vivo
- Modified surfaces
- Atmospheric pressure
- Atoms
- Bone
- Calcium
- Carbon
- Dental prostheses
- Photoelectrons
- Plasmas
- Surface treatment
- X ray photoelectron spectroscopy
- Argon
- argon
- calcium phosphate
- hydrocarbon
- atmospheric pressure
- bone regeneration
- dog
- histometry
- in vivo study
- musculoskeletal system parameters
- nonhuman
- plasma gas
- tooth implant
- Animals
- Calcium Phosphates
- Coated Materials, Biocompatible
- Dental Implants
- Dogs
- Implants, Experimental
- Male
- Microscopy, Electron, Scanning
- Osteogenesis
- Plasma Gases
- http://dx.doi.org/10.1002/jbm.a.34304
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/74098
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