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Updated: Jul 14, 2026

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Biological Compatibility Profile on Biomaterials for Bone Regeneration
Published on: November 16, 2018
Long-lasting and permanent fillers: biomaterial influence over host tissue response
1Paris, France From the Assistance Publique Hopitaux de Paris.
Plastic and Reconstructive Surgery
|May 24, 2007
Summary
Injectable filler complications depend on material properties and surface characteristics. Spherical, smooth particles and passive fillers minimize inflammatory reactions for better aesthetic outcomes.
Area of Science:
- Biomaterials Science
- Dermatology
- Plastic Surgery
Background:
- Injectable fillers are widely used for aesthetic enhancement.
- Understanding filler-induced adverse events is crucial for patient safety.
- Biomaterial properties significantly influence filler biocompatibility and reaction potential.
Purpose of the Study:
- To investigate the reasons behind varying complication rates among injectable fillers.
- To analyze filler agents based on biomaterial science principles.
- To correlate chemical composition with expected biological reactions.
Main Methods:
- Review of long-lasting and permanent injectable filler agents.
- Analysis of specific reactions induced by each filler type.
- Comparison of filler performance against manufacturer claims and published complication data.
Main Results:
- All injectable fillers carry a risk of complications.
- Particulate fillers with irregular/porous surfaces are more reactive than smooth, spherical ones.
- Gels/oils can fragment, initiating new inflammatory phases; passive fillers are preferred for superficial treatments.
Conclusions:
- Objective scientific studies on injectable fillers are lacking.
- Further research is needed to establish the safety and efficacy of current fillers.
- Standardized evaluation of fillers on human skin is essential.
