Evaluation of tooth color change after a bleaching process with different lasers
M öbius, D., Braun, A.& Franzen, R. Evaluation of tooth color change after a bleaching process with different lasers.Odontology (2024). https://doi.org/10.1007/s10266-023-00886-xAbstractThe
aim of this in vitro study was to evaluate the efficiency of diode
laser-activated bleaching systems for color change of teeth. 75
extracted teeth were studied in five different bleaching protocols.
Group 1: diode laser 445 nm, 320 µm fiber, 0.5W, continuous wave mode,dose 53 J/cm2. Group 2: diode laser 970 nm, 320 µm fiber, 1W, continuous wave mode, dose 106.10 J/cm2. Group 3: diode laser 940 nm, bleaching handpiece, 7W, continuous wave mode,dose 105 J/cm2. Group 4: diode laser 940 nm, 300 µm fiber, 2W, continuous wave mode, dose47.16 J/cm2.
Group 5: bleaching process without laser activation. In groups 1, 2 and
5, teeth were bleached with Perfect Bleach Office + and in groups 3 and
4, LaserWhite20 bleaching gel was used. Tooth color was determined
immediately after the bleaching process using a spectrophotometer. Color
change data on the CIEL * a * b* system was
analyzed statistically by the one-way ANOVA and Tukey ’s HSD test. All
bleaching procedures resulted in a change of color. All laser groups (∆E * ab > 3) have statistically larger ∆E * ab values than the control group ( ∆E * ab = 0.73) (p < 0.05). The diode laser 445...
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