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- Title
Histologic Evaluation of Early Human Bone Response to Different Implant Surfaces.
- Authors
Grassi, Sauro; Piattelli, Adriano; De Figueiredo, Luciene Cristina; Feres, Magda; De Melo, Leandro; Iezzi, Giovanna; Alba Jr., Rodolfo Candia; Shibli, Jamil Awad
- Abstract
Background: Studies have demonstrated that roughened dental implant surfaces show firmer bone fixation and an increased percentage of bone-to-implant contact (BIC%) compared to commercially pure titanium-surface (machined) implants. Therefore, the purpose of this study was to evaluate the influence of implant-surface topography on human bone tissue after 2 months of unloaded healing. Methods: Fourteen subjects with a mean age of 46.87 +± 9.45 years received two microimplants each (2.5 mm in diameter and 6 mm in length), one test (sandblasted acid-etched surface) and one control (machined surface), either in the mandible or in the maxilla. After a healing period of 2 months, the microimplants and surrounding tissues were removed with a trephine bur and prepared for histologic analysis. Results: All microimplants, except for one of the controls, were clinically stable after the healing period. Histometric evaluation indicated that the mean BIC% was 23.08% ± 11.95% and 42.83% ± 9.80% for machined and rough microimplant surfaces, respectively (P=0.0005). The bone area within the threads was also higher for sandblasted surface implants (P=0.0005). The mean percentage of bone density did not differ between the two groups (P=0.578). Conclusion: Data from the present histological study suggest that the sandblasted acid etched implant provides a better human bone tissue response than machined implants under unloaded conditions after a healing period of 2 months.
- Subjects
SURFACE roughness; DENTAL implants; PERIODONTIUM; TISSUES; DENTAL therapeutics
- Publication
Journal of Periodontology, 2006, Vol 77, Issue 10, p1736
- ISSN
0022-3492
- Publication type
Article
- DOI
10.1902/jop.2006.050325