Abstract
The aim of this study was to compare the bleaching efficacy of 35% hydrogen peroxide and 15% hydrogen peroxide with nitrogen-doped titanium dioxide catalysed by an LED-laser hybrid light. We studied 70 patients randomized to two groups. Tooth shade and pulpal sensitivity were registered. Group 1: 15% hydrogen peroxide with nitrogen-doped titanium dioxide. Group 2: 35% hydrogen peroxide. Both groups were activated by an LED-laser light. No significant differences were seen in shade change immediately, one week or one month after treatment (p>0.05). Differences were seen in pulpal sensitivity (p<0.05). The use of an LED-laser hybrid light to activate 15% hydrogen peroxide gel with NTiO2 permits decreasing the peroxide concentration with similar aesthetic results and less pulpal sensitivity than using 35% hydrogen peroxide for bleaching teeth.
Original language | English |
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Article number | 025608 |
Journal | Laser Physics |
Volume | 25 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Feb 2015 |
Keywords
- LED-laser light
- nitrogen-doped titanium dioxide
- pulpal sensitivity
- teeth bleaching
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Instrumentation
- Condensed Matter Physics
- Industrial and Manufacturing Engineering