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Evaluation of tooth color change after a bleaching process with different lasers.
- Source :
- Odontology; Jul2024, Vol. 112 Issue 3, p872-883, 12p
- Publication Year :
- 2024
-
Abstract
- The 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/cm<superscript>2</superscript>. Group 2: diode laser 970 nm, 320 µm fiber, 1W, continuous wave mode, dose 106.10 J/cm<superscript>2</superscript>. Group 3: diode laser 940 nm, bleaching handpiece, 7W, continuous wave mode, dose 105 J/cm<superscript>2</superscript>. Group 4: diode laser 940 nm, 300 µm fiber, 2W, continuous wave mode, dose 47.16 J/cm<superscript>2</superscript>. 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 CIE L * 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 nm has the largest ∆E * ab value (∆E * ab = 4.65) and results in a significantly higher color difference than all other groups. In terms of color score difference in VITA Shades, all laser-activated groups lead to a lightening effect while the control group leads to only a slight lightening effect. The diode laser 445 nm produced the greatest color difference. Laser-activated bleaching is more effective than conventional bleaching without light activation. The diode laser 445 nm performs best in this in vitro study. [ABSTRACT FROM AUTHOR]
- Subjects :
- SEMICONDUCTOR lasers
LASERS
TEETH
TOOTH whitening
ONE-way analysis of variance
Subjects
Details
- Language :
- English
- ISSN :
- 16181247
- Volume :
- 112
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Odontology
- Publication Type :
- Academic Journal
- Accession number :
- 178656222
- Full Text :
- https://doi.org/10.1007/s10266-023-00886-x