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In vivo evaluation of the trabecular bone behavior to porous electrostatic spray deposition‐derived calcium phosphate coatings
Author(s) -
Siebers Marijke C.,
Wolke Joop G. C.,
Frank Walboomers X.,
Leeuwenburgh Sander C. G.,
Jansen John A.
Publication year - 2007
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2006.01314.x
Subject(s) - materials science , titanium , coating , deposition (geology) , implant , osseointegration , porosity , biomedical engineering , dentistry , composite material , metallurgy , surgery , medicine , paleontology , sediment , biology
Objectives: Electrostatic spray deposition (ESD) is a new technique to deposit calcium phosphate (CaP) coatings. The aim of the present study was to evaluate the bone behavior of ESD CaP‐coated implants with various degrees of crystallinities in the trabecular bone of the femoral condyle of goats. Material and methods: Using the ESD technique, thin porous CaP coatings were deposited on tapered, conical, screw‐shaped titanium implants. Three different heat‐treatments were applied, resulting in amorphous CaP (400°C, ESD1), crystalline carbonate apatite (500°C, ESD2), and crystalline carbonated hydroxyapatite (700°C, ESD3). Implants were inserted into the trabecular bone of the femoral condyles of goats for 12 weeks, and titanium (Ti) implants served as controls. Results: The results showed that ESD‐derived coatings are osteocompatible. Histomorphometrical analysis showed that the application of a CaP coating resulted in more bone contact along the press‐fit area of the implant compared with the Ti implants. Moreover, the percentage bone contact of the ESD3‐coated implants was increased, compared with the Ti control group. Regarding the other coatings, no differences were found compared with the control group. Conclusion: Crystalline carbonated hydroxyapatite ESD‐coated implants positively influenced the biological performance compared with Ti control implants.