AI Article Synopsis
- The study aimed to compare how cherry juice, coffee, coke, gastric acid, and a thermo-aging procedure (TAP) affect the shear bond strength (SBS) of different ceramic brackets used in orthodontics.
- A total of 180 human premolar teeth were tested, segregated into groups based on bracket type and exposure to liquids or TAP, with assessments made using a universal test device and a light microscope.
- Results indicated that while SBS decreased with exposure to these liquids and TAP, all tested ceramic brackets still maintained clinically acceptable strength levels, even after the most harmful exposures like gastric acid and coke.
Article Abstract
Objective: The purpose of this study was to compare the effects of cherry juice, coffee, coke, gastric acid, and the thermo-aging procedure (TAP) on the shear bond strength (SBS) of APC II, APC flash-free, and conventional ceramic brackets.
Methods: A total of 180 human premolar teeth were randomly divided into three major groups according to the type of ceramic bracket. Then, six subgroups (n=10) were established from each major group: Group 1: control; Group 2: only TAP; Group 3: 72 hours of cherry juice exposure + TAP; Group 4: 72 hours of coffee exposure + TAP; Group 5: 72 hours of coke exposure + TAP; and Group 6: 24 hours gastric acid exposure + TAP. SBS was assessed for each specimen using a universal test device, and the adhesive remnant index (ARI) was scored under a light microscope. Kruskal-Wallis and post-hoc Tamhane tests were used to analyze the data.
Results: Among the control groups, the highest SBS value belonged to conventional ceramic brackets (p<0.01). SBS values for all groups decreased as a result of each liquid and TAP. Gastric acid and coke had the greatest detrimental effects on SBS, while TAP had the least negative effects. The SBS values of APC II, APC flash-free, and conventional brackets were found to be statistically insignificant after different liquid exposures and TAP.
Conclusion: TAP and various fluids had a negative impact on the SBS value of ceramic brackets. SBS values, however, were still higher than clinically acceptable (8-9 MPa) values, even after exposure to gastric acid and coke.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589170 | PMC |
| http://dx.doi.org/10.4274/TurkJOrthod.2023.2023.5 | DOI Listing |
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