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Table 1 Comparison of prevalence of Class I, Class II, and Class III malocclusion in thalassemic and normal children

From: Prevalence of malocclusion and assessment of treatment needs in β-thalassemia major children

  Angle’s Class I Dewey’s modification Angle’s Class II Angle’s Class III
Class I type 1 (%) Class I type 2 (%) Class 1 type 3 (%) Class I type 4 (%) Class I type 5 (%) Bimax (%) Spacing (%) Total (%) Class II Div 1 (%) Class II Div 2 (%) Class II subDiv 1 (%) Class II subDiv 2 (%) Total (%) Type 1 (%) Type 2 (%) Type 3 (%) Total (%)
Thalassemic children 25 8 0 2 0 5 4 44 34 5 15 1 55 0 0 1 1
Normal children 69 9 0.4 0.9 0.59 8 12 82.2 6 3.69 4 2 15.69 0.6 0.49 0.4 1.49