![]() ![]() The differences among the Aesthetic brackets were significant ( p < 0.05). Results: The highest transmission ratio was observed for the Radiance sapphire brackets (64.75%) and the lowest was observed for the 3M polycrystalline brackets (40.48%). The mean transmission values of the tested groups were compared using a one-way analysis of variance (ANOVA) test followed by a Bonferroni test (post-hoc test). The transmission ratio for the 2940 nm wavelength was obtained using IRsolution software. ![]() ![]() The aesthetic brackets were mounted in a Fourier transform infrared spectrophotometer (FTIR IRPrestige-21, SHIMADZU) following the typical spectroscopy lab procedure for such samples. Materials and methods: A total of 60 aesthetic brackets were divided into six equal groups ( 10 monocrystalline sapphire brackets-Radiance, AO 10 monocrystalline sapphire brackets-Absolute, Star Dentech 10 polycrystalline brackets-20/40, AO 10 polycrystalline brackets-3M Unitek Gemini Clear Ceramic 10 silicon brackets-Silkon Plus, AO 10 composite brackets-Orthoflex, OrthoTech). Objective: To identify the transmission of the 2940 nm wavelength through different types of aesthetic brackets. ![]() The most important factor in the debonding of aesthetic brackets is the transmission of the erbium laser through the aesthetic bracket to the adhesive resin. Background: Previous studies have confirmed the superiority of using erbium lasers (2940, 2780 nm) over other lasers in the debonding of ceramic brackets due to their safety and effectiveness. ![]()
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