Table 1 Patients demographics and characteristics.

From: Surgical Occlusion Setup in Correction of Skeletal Class III Deformity Using Surgery-First Approach: Guidelines, Characteristics and Accuracy

 

Total Patients

(N = 53)

With Genioplasty

(N = 39)

Without Genioplasty

(N = 14)

P

Female, n (%)

29 (55)

22 (76)

7 (50)

0.68†

Age at surgery, years (Mean ± SD)

25 ± 6

24 ± 5

27 ± 8

0.37†

ANB, degree (Mean ± SD)

−4.3 ± 3.0

−3.8 ± 2.7

−4.7 ± 2.7

0.30†

Overjet, mm (Mean ± SD)

−3.3 ± 3.7

−3.0 ± 3.4

−4.2 ± 4.4

0.31†

Overbite, mm (Mean ± SD)

−0.1 ± 3.1

0.1 ± 2.7

−0.6 ± 4.1

0.48†

Right first molar relation

Angle Class I, n (%)

6 (11)

6 (15)

0 (0)

0.22‡

Angle Class II, n (%)

0 (0)

0 (0)

0 (0)

 

Angle Class III, n (%)

41 (78)

28 (72)

13 (93)

 

Not available, n (%)

6 (11)

5 (13)

1 (7)

 

Left first molar relation

Angle Class I, n (%)

3 (6)

3 (8)

0 (0)

0.63‡

Angle Class II, n (%)

1 (2)

1 (2)

0 (0)

 

Angle Class III, n (%)

43 (81)

31 (80)

12 (86)

 

Not available, n (%)

6 (11)

4 (10)

2 (14)

 

Midline discrepancy, mm (Mean ± SD)

1.6 ± 1.2

1.6 ± 1.1

1.5 ± 1.3

0.70†

  1. †Statistical analysis was carried out using the Mann Whitney U test (with versus without genioplasty).
  2. ‡Statistical analysis was carried out using the chi-square test (with versus without genioplasty).
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