Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
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SHR Neuro Krebs Kardio Lipid Stoffw Microb
Wendl, T; Wendl, B.
A comparative in vitro study of bond strength of adhesive precoated and not precoated brackets
INF ORTHOD KIEFEROR. 2023; 55(03): 157-160.
Doi: 10.1055/a-2144-0960
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- Führende Autor*innen der Med Uni Graz
- Wendl Brigitte
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- Abstract:
- In this study, the bond strength of adhesive precoated brackets was compared to brackets without adhesive coating using the conventional bonding method.Shear testing was performed with the universal mechanical testing machine at a feed rate of 0.5 mm/min and ARI Index was determined by stereo microscope (10-66 fold magnification). Statistical analysis was carried out using the SPSS program. The level of significance was established at p<0.05. The T-Test for independent random samples was employed when comparing two mean values.Both groups achieved the minimum bond strength of 5-8 MPa and there was only a significant difference between the lower incisors groups.ARI: In 20 of 30 cases in the bracket group without adhesive coating>90% of the composite remained on the enamel. The APC System also showed this fracture mode but a smaller tendency towards bracket-adhesion failure was recognizable.
- Find related publications in this database (Keywords)
- bond strength
- adhesive precoated brackets
- Adhesive Remnant Index [ARI]