Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth
Objectives: Light irradiation and heat have been used to accelerate the process of tooth bleaching. This study aimed to assess the efficacy of conventional bleaching compared to laser-bleaching using three different wavelengths of diode lasers. Materials and Methods: In this in-vitro experimental...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2020-06-01
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| Series: | Frontiers in Dentistry |
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| Online Access: | https://fid.tums.ac.ir/index.php/jdt/article/view/3150 |
| _version_ | 1818928857421447168 |
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| author | Reza Saeedi Ladan Ranjbar Omrani Mahdi Abbasi Nasim Chiniforush Mojgan Kargar |
| author_facet | Reza Saeedi Ladan Ranjbar Omrani Mahdi Abbasi Nasim Chiniforush Mojgan Kargar |
| author_sort | Reza Saeedi |
| collection | DOAJ |
| description | Objectives: Light irradiation and heat have been used to accelerate the process of tooth bleaching. This study aimed to assess the efficacy of conventional bleaching compared to laser-bleaching using three different wavelengths of diode lasers.
Materials and Methods: In this in-vitro experimental study, 40 extracted human central incisors were immersed in a coloring solution made of tea, coffee, and cola for 21 days. The L*, a*, and b* color parameters were measured before and after the immersion using spectrophotometry. The teeth were then randomly divided into four groups (n=10) as follows: group 1: 810-nm diode laser + Biolase Laser White 20, group 2: 940-nm diode laser + Biolase Laser White 20, group 3: 980-nm diode laser + Biolase Laser White 20, and group 4: conventional bleaching with Opalescence Boost without laser irradiation. One-way analysis of variance (ANOVA) was used to assess the effect of laser type and bleaching technique on color parameters.
Results: The 940-nm (∆E=28.5896) and 810-nm laser groups (∆E=21.2382) showed the highest and the lowest bleaching efficacy, respectively; however, the groups were not significantly different in terms of bleaching efficacy (P>0.05).
Conclusion: Laser-bleaching with 810-, 940- and 980-nm wavelengths of diode laser has an efficacy similar to that of conventional bleaching but in a shorter period. No difference was noted between different laser wavelengths in terms of bleaching efficacy. |
| first_indexed | 2024-12-20T03:35:34Z |
| format | Article |
| id | doaj.art-1fe7d54325f64269b61e41b8731ba599 |
| institution | Directory Open Access Journal |
| issn | 2676-296X |
| language | English |
| last_indexed | 2024-12-20T03:35:34Z |
| publishDate | 2020-06-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Frontiers in Dentistry |
| spelling | doaj.art-1fe7d54325f64269b61e41b8731ba5992022-12-21T19:54:53ZengTehran University of Medical SciencesFrontiers in Dentistry2676-296X2020-06-0145846410.18502/fid.v16i6.34453150Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained TeethReza Saeedi0Ladan Ranjbar Omrani1Mahdi Abbasi2Nasim Chiniforush3Mojgan Kargar4Department of Operative Dentistry, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, IranLaser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, IranLaser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, IranLaser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, IranDepartment of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, IranObjectives: Light irradiation and heat have been used to accelerate the process of tooth bleaching. This study aimed to assess the efficacy of conventional bleaching compared to laser-bleaching using three different wavelengths of diode lasers. Materials and Methods: In this in-vitro experimental study, 40 extracted human central incisors were immersed in a coloring solution made of tea, coffee, and cola for 21 days. The L*, a*, and b* color parameters were measured before and after the immersion using spectrophotometry. The teeth were then randomly divided into four groups (n=10) as follows: group 1: 810-nm diode laser + Biolase Laser White 20, group 2: 940-nm diode laser + Biolase Laser White 20, group 3: 980-nm diode laser + Biolase Laser White 20, and group 4: conventional bleaching with Opalescence Boost without laser irradiation. One-way analysis of variance (ANOVA) was used to assess the effect of laser type and bleaching technique on color parameters. Results: The 940-nm (∆E=28.5896) and 810-nm laser groups (∆E=21.2382) showed the highest and the lowest bleaching efficacy, respectively; however, the groups were not significantly different in terms of bleaching efficacy (P>0.05). Conclusion: Laser-bleaching with 810-, 940- and 980-nm wavelengths of diode laser has an efficacy similar to that of conventional bleaching but in a shorter period. No difference was noted between different laser wavelengths in terms of bleaching efficacy.https://fid.tums.ac.ir/index.php/jdt/article/view/3150diode laserstooth bleaching agentscolorspectrophotometry |
| spellingShingle | Reza Saeedi Ladan Ranjbar Omrani Mahdi Abbasi Nasim Chiniforush Mojgan Kargar Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth Frontiers in Dentistry diode lasers tooth bleaching agents color spectrophotometry |
| title | Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth |
| title_full | Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth |
| title_fullStr | Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth |
| title_full_unstemmed | Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth |
| title_short | Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth |
| title_sort | effect of three wavelengths of diode laser on the efficacy of bleaching of stained teeth |
| topic | diode lasers tooth bleaching agents color spectrophotometry |
| url | https://fid.tums.ac.ir/index.php/jdt/article/view/3150 |
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