Bioactive Glass and Silicate-Based Ceramic Coatings on Metallic Implants: Open Challenge or Outdated Topic?

Area of Science:

• Biomaterials Science
• Orthopedic Engineering
• Dental Implantology

Background:

• Osseointegration is crucial for medical implant longevity and success.
• Surface modifications and coatings enhance bone formation and tissue interaction.
• Metallic implants require strategies to improve their integration with host tissues.

Purpose of the Study:

• To review metallic implants, their biocompatibility, and osseointegration.
• To explore bioactive glasses and silica-based ceramics as coating materials for orthopedic and dental implants.
• To emphasize deposition methods, coating adhesion, and apatite formation of bioactive coatings.

Main Methods:

• Literature review of metallic implants and bioactive coating materials.
• Analysis of deposition techniques for bioactive coatings.
• Evaluation of coating adhesion and apatite formation in Simulated Body Fluid (SBF).

Main Results:

• Bioactive glasses and silica-based ceramics show promise as coating materials.
• Deposition methods significantly influence coating adhesion and performance.
• Coatings demonstrate favorable apatite formation in SBF, indicating bioactivity.

Conclusions:

• Bioactive coatings are effective in enhancing osseointegration for medical implants.
• Careful selection of coating materials and deposition methods is key to successful implant fixation.
• Further investigation into in vitro and in vivo performance is warranted to optimize implant design.