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The shear bond strength values (in megapascals) of metal and ceramic brackets to tooth surfaces using high-power and conventional LED light curing units
| Group | Curing time (s) | Mean | Standard deviation | Min | Max |
|---|---|---|---|---|---|
| A | 4 | 23.01 | 3.69 | 17.8 | 28.34 |
| B | 3 | 10.7 | 2.06 | 12.8 | 14.06 |
| C | 20 | 24.92 | 6.37 | 15.22 | 32.34 |
| D | 20 | 10.74 | 3.18 | 4.71 | 15.24 |
