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Porous ceramic lamellae for orthodontic ceramic brackets: part II: in vitro performance testing.
S Arici1, C J Minors, P F Messer
1Department of Child Dental Health, School of Clinical Dentistry, University of Sheffield, UK.
Journal of Materials Science. Materials in Medicine
|July 1, 1997
Summary
A novel porous lamella orthodontic bracket base was tested for easy ceramic bracket removal. In vitro tests confirmed strong bonding to enamel and safe removal without damaging tooth surfaces.
Area of Science:
- Biomaterials Science
- Orthodontics
- Dental Adhesives
Background:
- Current orthodontic bracket removal can sometimes damage enamel.
- A new bracket base design aims to simplify ceramic bracket debonding.
Purpose of the Study:
- To evaluate a novel porous lamella orthodontic bracket base.
- To assess the bond strength and debonding characteristics of the new bracket system in vitro.
Main Methods:
- Two types of porous lamella and adhesive resin were tested.
- Tensile bond strength was measured after water storage and thermal cycling.
- Debonding stress and failure modes were analyzed using debracketing pliers.
Main Results:
- Bracket/lamella assemblies demonstrated sufficient bond strength for clinical use.
- Safe bracket removal without enamel damage was confirmed.
- The porous lamella design facilitates easier debonding.
Conclusions:
- The novel porous lamella orthodontic bracket base offers a promising solution for simplified ceramic bracket removal.
- This design ensures strong adhesion during treatment and safe, damage-free removal post-treatment.