Research Article
In Vitro Effects of Two Topical Varnish Materials and Er:YAG Laser Irradiation on Enamel Demineralization around Orthodontic Brackets
Table 2
Post hoc statistical comparisons of microhardness values of specimens from 3 positions and 5 depths from the coronal side of bracket surface.
| | Distances from bracket surface | 0 μm | 100 μm | 200 μm | | Depths | 10 μm | 20 μm | 40 μm | 70 μm | 90 μm | 10 μm | 20 μm | 40 μm | 70 μm | 90 μm | 10 μm | 20 μm | 40 μm | 70 μm | 90 μm |
| | Laser/control | 0.733 | 0.199 | 0.256 | 0.112 | 0.820 | 0.241 | 0.520 | 0.545 | 0.307 | 0.45 | 0.051 | 0.052 | 0.070 | 0.096 | 0.257 | | Laser/TCP | 0.013 | | | | | | | | | | | | | | | | Laser/ACP | 0.069 | 0.031 | 0.008
*
| 0.028 | 0.002
*
| 0.570 | 0.570 | 0.071 | 0.734 | 0.364 | 0.571 | 0.705 | 0.405 | 0.045 | 0.034 | | Control/TCP | | | | | | | | | | | | | | | | | Control/ACP | 0.059 | | | | | 0.017 | 0.019 | 0.049 | 0.151 | 0.199 | 0.070 | 0.059 | 0.082 | | | | TCP/ACP | 0.096 | | 0.041 | 0.013 | 0.026 | | | | | | | | 0.014 | | |
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*: significance level.
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