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Effect of Surface Treatments of Ceramic Specimens on Shear Bond Strength of Orthodontic Brackets Using Two Different Prime Systems | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 13, Issue 1, June 2025, Pages 45-56 PDF (477.41 K) | ||
| DOI: 10.25130/tjds.13.1.6 | ||
| Authors | ||
| Enas Talb Al-Jwary* ; Amena Raafat Khaled | ||
| Department of Pedodontics, Orthodontic and Preventive Dentistry, Collage of Dentistry, University of Mosul, Mosul, Iraq. | ||
| Abstract | ||
| To compare the shear bond strength (SBS) of metal brackets bonded to ceramic specimens with two surface treatment methods and two different adhesive prime types and to determine adhesive remnant index (ARI). Materials and Methods: This in-vitro study included 60 ceramic specimens which divided randomly into two groups of 30 specimens for each according to prime used (Assure® Plus and Transbond™ XT). The labial aspect of each specimen was treated by one of the following three surface preparation: no surface treatment (control group), air abrasion with 50µM aluminum oxide particles (AL2O3) and acid etching with 9.6% hydrofluoric acid (HF). Metal orthodontic brackets were bonded to ceramic specimens using Assure® Plus or Transbond™ XT adhesives. The surface roughness was measured by profilometer and then SBS was measured using a universal testing machine at a crosshead speed of o.5 mm/minute. The labial surfaces of specimens were inspected under a stereomicroscope, and the Adhesive remnant index (ARI) scores were determined. Raw data were analyzed using SPSS program. Results: The Al2O3 air abrasion with Assure® Plus group had a highest mean of SBS values while HF groups with Transbond™ XT adhesive or Assure® Plus give rise a significantly lower SBS values than that obtained for Al2O3 group. A significant difference was noted among the groups in the ARI scores. In AL2O3 group bonded with Transbond™ XT had a score 1 and 2 which was designated as mix-type failure, indicating a favorable failure mode. Conclusion: This study showed that air abrasion of ceramic specimens had a significant effect on SBS of metal brackets bonded to ceramic and the Transbond™ XT prime is a applicable bonding material for clinical use for ceramic restoration. | ||
| Keywords | ||
| ceramic specimens metal orthodontic bracket shear bond strength surface treatment methods | ||
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