Measurement | ||||||
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| Mean enamel dentine thickness before preparations (mm ± SD) | |||
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Group | Mandibular teeth | Finish Line | Mesial (Mce) | Distal (Dce) | Lingual (Lce) | Buccal (Bce) |
1 | Upper Laterals | Shoulder | 1.70 ± 0.09 | 1.58 ± 0.16 | 2.28 ± 0.41 | 2.23 ± 0.31 |
2 | Chamfer | 1.52 ± 0.31 | 1.62 ± 0.22 | 2.02 ± 0.32 | 2.11 ± 0.15 | |
3 | Knife Edge | 1.60 ± 0.10 | 1.62 ± 0.18 | 2.05 ± 0.21 | 1.80 ± 0.20 | |
4 | Lower Centrals | Shoulder | 1.60 ± 0.12 | 1.63 ± 0.18 | 2.08 ± 0.22 | 2.30 ± 0.12 |
5 | Chamfer | 1.52 ± 0.23 | 1.43 ± 0.30 | 2.25 ± 0.25 | 2.22 ± 0.11 | |
6 | Knife Edge | 1.55 ± 0.16 | 1.47 ± 0.18 | 2.05 ± 0.21 | 2.02 ± 0.20 | |
7 | Lower Laterals | Shoulder | 1.58 ± 0.22 | 1.65 ± 0.28 | 2.15 ± 0.29 | 2.03 ± 0.22 |
8 | Chamfer | 1.38 ± 0.20 | 1.45 ± 0.10 | 2.13 ± 0.17 | 2.05 ± 0.14 | |
9 | Knife Edge | 1.55 ± 0.16 | 1.47 ± 0.18 | 2.12 ± 0.33 | 1.97 ± 0.21 |