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Osseointegration assessment of chairside argon-based nonthermal plasma-treated Ca-P coated dental implants†

  1. Gabriela Giro1,
  2. Nick Tovar2,
  3. Lukasz Witek2,
  4. Charles Marin3,
  5. Nelson R. F. Silva4,
  6. Estevam A. Bonfante5,
  7. Paulo G. Coelho2,*

Article first published online: 24 JUL 2012

DOI: 10.1002/jbm.a.34304

Issue

Journal of Biomedical Materials Research Part A

Journal of Biomedical Materials Research Part A

Volume 101A, Issue 1, pages 98–103, January 2013

Additional Information

How to Cite

Giro, G., Tovar, N., Witek, L., Marin, C., Silva, N. R. F., Bonfante, E. A. and Coelho, P. G. (2013), Osseointegration assessment of chairside argon-based nonthermal plasma-treated Ca-P coated dental implants. J. Biomed. Mater. Res., 101A: 98–103. doi: 10.1002/jbm.a.34304

Author Information

  1. 1

    Department of Oral Diagnosis and Surgery, Araraquara Dental School, UNESP – Universidade Estadual Paulista, Araraquara, SP, Brazil

  2. 2

    Department of Biomaterials and Biomimetics, New York University, New York, New York

  3. 3

    Department of Dentistry, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil

  4. 4

    Department of Prosthodontics, New York University, New York, New York

  5. 5

    Postgraduate Program in Dentistry, UNIGRANRIO University, School of Health Sciences, Duque de Caxias, RJ, Brazil

*Department of Biomaterials and Biomimetics, New York University, New York, New York

  1. †

    How to cite this article: Giro G, Tovar N, Witek L, Marin C, Silva NRF, Bonfante EA, Coelho PG. 2013. Osseointegration assessment of chairside argon-based nonthermal plasma-treated Ca-P coated dental implants. J Biomed Mater Res Part A 2013:101A:98–103.

Publication History

  1. Issue published online: 23 NOV 2012
  2. Article first published online: 24 JUL 2012
  3. Manuscript Accepted: 23 APR 2012
  4. Manuscript Revised: 6 MAR 2012
  5. Manuscript Received: 22 JAN 2012

Funded by

  • Bicon LLC, Boston, MA

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Keywords:

  • implant surface treatment;
  • argon plasma;
  • modified surface;
  • osseointegration;
  • in vivo

Abstract

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 hydrocarbon (C[BOND]C, C[BOND]H) 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 CaP-Plasma 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 CaP-Plasma 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. J Biomed Mater Res Part A: 101A:98–103, 2013.

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