Skip to main content

Table 4 Chi-square-test was used to check whether the distribution of treatment complexities judged as ‘severe’ were equally distributed among the subjects treated with either of the two appliance types

From: Lingual orthodontic treatment duration: performance of two different completely customized multi-bracket appliances (Incognito and WIN) in groups with different treatment complexities

  Appliance Severity - 1 Severity - 2 Row - totals
Count Incognito 171 (77.73%) 49 (22.27%) 220
Count WIN 146 (93.59%) 10 (6.41%) 156
Count All Groups 317 (84.30) 59 (15.69) 376
  1. As we detected a more significant difference (p < 0.0001), the factor of grouped severity of malocclusion was included in the ANOVA as a main factor.