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Corrosion of silver cones in bone: a scanning electron microscope and microprobe analysis
D R Zielke1, J M Brady, C E del Rio
1Department of Biophysics, US Army Institute of Dental Research, Washington, DC, USA.
Journal of Endodontics
|November 1, 1975
Summary
Silver cones implanted in rat bone wounds corroded quickly but were well tolerated. Analysis revealed silver, chlorine, and sulfur in surrounding tissues, indicating biocompatibility and elemental presence.
Area of Science:
- Biomaterials Science
- Orthopedic Research
- Toxicology
Background:
- Silver's antimicrobial properties are well-documented.
- Investigating the in vivo behavior of metallic implants is crucial for orthopedic applications.
Purpose of the Study:
- To evaluate the biocompatibility and tissue response to silver cone implants in bone wounds.
- To analyze the elemental composition of tissues adjacent to silver implants over time.
Main Methods:
- Surgical implantation of silver cones into tibial bone defects in Sprague-Dawley rats.
- Histological and elemental analysis using scanning electron microscopy and X-ray microanalysis at monthly intervals.
- Assessment of tissue tolerance and implant corrosion.
Main Results:
- Silver cones exhibited rapid corrosion in vivo.
- Tissues adjacent to the implants demonstrated good tolerance to the silver material.
- Elemental analysis confirmed the presence of silver, chlorine, and sulfur in the surrounding bone tissues.
Conclusions:
- Silver cones are biocompatible in bone wound healing, despite rapid corrosion.
- The presence of specific elements in adjacent tissues warrants further investigation into long-term effects.
- Findings support the potential use of silver-based materials in orthopedic applications.