In-vivo bone response to titanium screw implants anodized in sodium sulfate
Pinheiro, Flávio Alexandre Lima, Mourão, Carlos Fernando de Almeida Barros, Diniz, Vitor Senna, Silva, Paulo Cesar, Meirelles, Luiz, Santos Junior, Emanuel, Schanaider, Alberto
Acta Cir. Bras.
DATA DE PUBLICAÇÃO
PURPOSE: To evaluate the early bone response to a nanotextured dental implant treated with sodium sulfate (Na2SO4), using a rabbit model. METHODS: Twelve animals were randomly divided into group 1 (Control) - machined implants and group 2 (Test) - nanotextured implants. Extra-oral incision was performed to provide access to intended surgical site where the dental implant was inserted immediately after the extraction of the mandibular first premolar. Implant surface characterization was performed by scanning electron microscopy attached to energy dispersive spectroscopy and interferometry. Three weeks after surgery, the animals were induced to death and undecalcified sections of the samples were prepared for histological and histomorphometrical analysis. RESULTS: Surface characterization of the implant demonstrated enhanced surface area of anodized group compared to Control group with 19.2% ± 6.2 versus 1.6 ± 0.7, respectively. Histological evaluation demonstrated new bone formation starting from the buccal and lingual cortical walls on both groups. After three weeks, significant higher bone contact of 27% (p<0.05) was observed to nanotextured compared to machined implants (Control group). CONCLUSION: The anodization with sodium sulfate nanostructures to the implant surface that resulted in faster osseointegration.
- In-vivo skin test.
- An illustration of an in-vivo corneal response to a soft lens presoaked in a non-isotonic solution.
- In-vivo determination of lead in the skeleton after occupational exposure to lead
- The in-vivo metabolism of C3 in ankylosing spondylitis.
- In-vivo sensitivity of canine myocardium to acute depression of serum ionized calcium