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Effects of Acidic Environments on Dental Structures after Bracket Debonding
Cristina Iosif1, Stanca Cuc2, Doina Prodan2
1Department of Prosthetic Dentistry and Dental Materials, "Iuliu Hatieganu" University of Medicine and Pharmacy, 32 Clinicilor Street, 400006 Cluj-Napoca, Romania.
International Journal of Molecular Sciences
|December 23, 2022
Summary
Acidic drinks like cola and energy drinks weaken bracket adhesion to teeth. Resin-modified glass ionomer (RMGIC) showed better resistance to acid erosion from Red Bull™ than resin composite (CR).
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Oral Health Research
Background:
- Dental brackets are susceptible to acid erosion from soft drinks.
- Acid erosion can compromise the bond between brackets and enamel.
Purpose of the Study:
- To investigate bracket adhesion characteristics in the presence of Coca-Cola™ and Red Bull™.
- To evaluate the erosive effects of these drinks on enamel and bonding agents.
Main Methods:
- Sixty human teeth were bonded with resin-modified glass ionomer (RMGIC) or resin composite (CR).
- Teeth were immersed in Coca-Cola™ or Red Bull™ and tested using a shear bond strength (SBS) test.
- Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) were used to evaluate debonding and surface roughness.
Main Results:
- Artificial saliva resulted in the best bracket bonding.
- Resin-modified glass ionomer (RMGIC) bonded teeth immersed in Red Bull™ exhibited the highest adhesion resistance to acid erosion.
- Both drinks significantly increased enamel surface roughness, with Red Bull™ showing a more erosive effect than Coca-Cola™.
- Polishing restored enamel surface roughness and inhibited acid erosion.
Conclusions:
- Prolonged exposure to acidic drinks degrades bracket bonding strength.
- Resin-modified glass ionomer (RMGIC) offers superior resistance to acid erosion compared to resin composite (CR).
- Red Bull™ demonstrates a more significant erosive impact on dental enamel than Coca-Cola™.
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