Abstract :
Background: The study was conducted to compare fluorescence behaviour of four different commercially available flowable composite materials and to compare enamel loss and residual material of these composites in clear aligner therapy.Fluorescence is a property of a substance that absorbs light and within 10 sec of activation, spontaneously emits light at a larger wavelength which is useful for adhesive identification during removal.Materials and Methods: For the in-vitro study, 84 extracted premolar teeth were taken. The attachments were placed with the help of four different adhesives. The fluorescence of the composites was measured on the clinical photographs by using Colour-picker tool. The tungsten carbide bur with low-speed hand- piece was used to remove the composite under fluorescent light emitting diode (LED) (405 ± 10 nm). The volumetric analysis of the enamel surface and adhesive was done by superimposition of the pre and post scans with the help of Omnicam software.Results: The fluorescence was highest in G-aenial universal flow [98.00 ± 0.816], followed by Tetric N flow [95.00 ± 0.816], Polofil NHT Flow [94.5 ± 1.914], and was minimum in Filtek Supreme ultra flowable [52.50 ± 4.509]. Enamel loss [1.35 ± 0.460] and adhesive remaining [1.35 ± 0.460] was highest in Filtek Supreme ultra flowable (p-value
Keyword :
Fluorescence Aided Identification Technique, Attachments, Enamel loss, Colour saturation