Abstract
Objective
To study the effect of chairside sandblasting of the bases upon the retention of mesh backed orthodontic brackets.
Design
Prospective controlled clinical trial.
Methods
Brackets were bonded to 60 successive patients who were treated at an orthodontic practice in Amman, Jordan. Using a crossover system of allocation, quadrants were bonded using either sandblasted or non-sandblasted brackets respectively. Rely-A-Bond adhesive was used throughout. Bond failures were monitored over one year.
Results
1112 brackets were assessed. The overall failure rate was 4.0% and the failure rates for non-sandblasted and sandblasted brackets were 4.7 and 3.4% respectively. The odds ratio for at least one bracket failure within the control quadrant compared with the experimental quadrant was 0.50 (95% CI 0.185 to 1.238), which was not statistically significant.
Conclusion
Sandblasting did not significantly improve the retention of mesh based orthodontic brackets in this study.
Keywords
Get full access to this article
View all access options for this article.