The Effect of Diode Laser Irradiation on Surface Roughness of Bleached Enamel: An in Vitro Study
Aims: To evaluate the influence of post bleaching diode laser irradiation on the surface roughness of bleached enamel. Materials and methods: Forty bovine teeth were prepared and then randomly divided into two equal groups (n=20) according to the in–office bleaching technique as follows: CB: Conve...
| Main Authors: | , |
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| Format: | Article |
| Language: | Arabic |
| Published: |
University of Mosul, College of Dentistry
2021-09-01
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| Series: | Al-Rafidain Dental Journal |
| Subjects: | |
| Online Access: | https://rden.mosuljournals.com/pdf_169253_d074acc66b3a62d09a33c173c7fa2387.html |
| Summary: | Aims: To evaluate the influence of post bleaching diode laser irradiation on the surface roughness of bleached
enamel. Materials and methods: Forty bovine teeth were prepared and then randomly divided into two equal
groups (n=20) according to the in–office bleaching technique as follows: CB: Conventional in–office bleaching technique LB: Laser–assisted in–office bleaching technique. Each group was then subdivided into two
subgroups (n=10) according to laser irradiation setting as follows: C2: Conventionally bleached followed by
2-Watt laser irradiation, C4: Conventionally bleached followed by 4-Watt laser irradiation, L2: Laser–assisted
bleached followed by 2Watt laser irradiation and L4: Laser–assisted bleached followed by 4Watt laser irradiation. Surface roughness was assessed three times for all the specimens: before bleaching, 24 hours after
bleaching and finally 24 hours after post bleaching diode laser irradiation by utilizing profilometer. Paired
samples t–test and independent samples t– test was utilized for statistical analysis at p≤0.05. Results: Both
bleached groups exhibited a significant increase in the surface roughness of enamel with no statistically significant difference between them. Post bleaching diode laser irradiation at 4Watt resulted in a significant increase in surface roughness of enamel, while 2Watt diode laser irradiation resulted in non–significant increase
in surface roughness of enamel. Conclusions: In–office bleaching techniques had a negative impact on enamel in terms of surface roughness. Post bleaching diode laser irradiation at 2Watt power parameter is more preferred than 4Watt power parameter |
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| ISSN: | 1812-1217 1998-0345 |