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Article: Studies conducted at University of Siena, Medical Department on bone research recently published.(Report)
- Article from:
- Biotech Week
- Article date:
- June 24, 2009
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According to recent research from Siena, Italy, "Several miniscrews are available for skeletal anchorage. They have different geometries with self-drilling or self-tapping features."
"The aim of this study was to evaluate the soft bone primary stability of 3 different orthodontic screws by using the resonance frequency analysis. Aarhus mini-implant (Aarhus Mini-implant, Charlottenlund, Denmark) (A), Mini Spider Screws (HDC, Sarcedo, Italy) (S), and Micerium Anchorage System (Micerium, Avegno, Italy) (MAS) were investigated. To be compatible with the device used for resonance frequency analysis, the screws were modified (an abutment [Astra Tech, Molndal, Sweden] ...
<0.05. The recorded resonance frequencies (in Hz) were (mean +/- SD): MAS, 6236.1 +/- 192.1; S, 6270.1 +/- 99.7; and A, 6193.1 +/- 142.4. Differences among the groups were not statistically significant (P>