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Histometric analysis and topographic characterization of cp Ti implants with surfaces modified by laser with and without silica deposition
Author(s) -
Souza Francisley Á.,
Queiroz Thallita P.,
Sonoda Celso K.,
Okamoto Roberta,
Margonar Rogério,
Guastaldi Antônio C.,
Nishioka Renato S.,
Garcia Júnior Idelmo R.
Publication year - 2014
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.33139
Subject(s) - osseointegration , materials science , scanning electron microscope , biomedical engineering , characterization (materials science) , deposition (geology) , tibia , implant , dentistry , composite material , surgery , medicine , nanotechnology , paleontology , sediment , biology
Biologic behavior of the bone tissue around implants with four different surfaces was evaluated. The surfaces were: modified by laser (LS); modified by laser with sodium silicate deposition (SS); and commercially available surfaces modified by acid etching (AS) and machined surface (MS). Topographic characterization of the surfaces was performed by scanning electron microscopy (SEM)– energy dispersive X‐ray spectrometry (EDX) before experimental surgery. Thirty rabbits received 60 implants in their right and left tibias, 1 implant of each surface being placed in each tibia. The analyzed periods were 4, 8, and 12 weeks postoperatively. Histometric analysis was performed evaluating bone interface contact (BIC) and bone area (BA) . The results obtained were submitted to the analysis of variance and the Tukey t‐ test. The elemental mapping was evaluated by means of SEM at 4 weeks postoperatively. The topographic characterization showed differences between the analyzed surfaces. Generally, the BIC and BA of LS and SS implants were statistically higher than those of AS and MS in most of the analyzed periods. Elemental mapping showed high peaks of calcium and phosphorous in all groups. Based on the present methodology, it may be concluded that experimental modifications LS and SS accelerated the stages of the bone tissue repair process around the implants, providing the highest degree of osseointegration. © 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 102B:1677–1688, 2014.