Table 2: Gender Distribution of Self-Assessment and Professional (Orthodontist) Assessment of Dental Aesthetics of the Studied Population According to the Aesthetic Component of the Index of Orthodontic Treatment Need

Variable Frequency (%)
Male Female Total
Self assessment of need by participants
 1 - 4 No Need 244 (81.6) 261 (83.4) 505 (82.5)
5 - 7 Moderate need 32 (10.7) 35 (11.2) 67 (10.9)
8 - 10 Definite need 23 (7.7) 17 (5.4) 40 (6.5)
Total 299 (100) 313 (100) 612 (100)
Mean 3.3 ± 2.1 3.4 ± 2.0 3.3 ± 2.1
Median 3 3 3
Student's t statistic = 0.06, p = 0.95
Professional assessment of need
1 - 4 No need 175 (58.5) 222 (70.9) 397 (64.9)
5 - 7 Moderate need 56 (18.7) 51 (16.3 ) 107 (17.5)
8 - 10 Definite need 68 (22.7) 40 (12.8) 108 (17.6)
Total 299 (100) 313 (100) 612 (100)
Mean 4.6 ± 2.8 3.8 ± 2.5 4.2 ± 2.7
Median 4 3 4
Student's t statistic = 3.65, p = 0.0003

Note: Need >4, No need ≤4

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