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Retrieval analysis of immediately loaded orthodontic mini-implants: material and tissue characterization
Michail Vasoglou1, Evanthia Chrysomali2, Spiros Zinelis3
1*Orthodontics, mvasoglou@dent.uoa.gr.
European Journal of Orthodontics
|December 31, 2013
Summary
Investigating retrieved orthodontic mini-implants revealed surface changes and protein adsorption. Longer loading periods correlated with increased lamellar bone development around the implants.
Area of Science:
- Orthodontic research
- Biomaterials science
- Dental implantology
Background:
- Orthodontic mini-implants are crucial for anchorage.
- Understanding their surface changes and bone integration is vital for treatment success.
Purpose of the Study:
- To analyze morphological and compositional changes in retrieved orthodontic mini-implants.
- To determine the adjacent bone types in relation to loading duration and anatomical site.
Main Methods:
- Examined 59 retrieved mini-implants using stereomicroscopy, FTIR, SEM, and EDS.
- Histologically analyzed adjacent bone tissues to classify bone types (woven and lamellar).
Main Results:
- All mini-implants showed surface alterations, including protein adsorption and mineralized fragments.
- Woven and lamellar bone types were identified in adjacent tissues.
- A significant correlation existed between loading time and histological findings, but not anatomical region.
Conclusions:
- Both mini-implant types exhibited morphological and elemental surface alterations.
- Extended loading periods promote the development of lamellar bone around orthodontic mini-implants.
