pISSN 2234-7518
eISSN 2005-372X
eISSN 2005-372X
Mean and standard deviation (SD) of CRA of three groups
| CRA | Class I (n = 20) | Class II (n = 20) | Class III (n = 20) | Kruskal–Wallis test | Mann–Whitney |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Sig. | Sig. | |||||
| MDCRA | ||||||||||||
| #11 | 177.9 | 2.3 | 177.2 | 2.7 | 178.7 | 3.0 | 0.231 | NS | ||||
| #12 | 177.8 | 3.8 | 177.6 | 3.1 | 178.3 | 3.7 | 0.836 | NS | ||||
| #13 | 174.0 | 3.2 | 173.0 | 3.3 | 173.9 | 4.3 | 0.528 | NS | ||||
| LLCRA | ||||||||||||
| #11 | 178.2 | 3.0 | 178.4 | 3.7 | 174.0 | 3.5 | 0.001 |
I, II > III | ||||
| #12 | 175.9 | 1.8 | 175.0 | 2.3 | 174.0 | 2.4 | 0.030 |
I > III | ||||
| #13 | 184.3 | 3.6 | 182.6 | 2.2 | 183.5 | 3.0 | 0.181 | NS | ||||
CRA, crown‐root angulation; MDCRA, mesiodistal crown‐root angulation; LLCRA, labiolingual crown‐root angulation; NS, not significant.
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