Table 3 Occlusal characteristics of surgical occlusion.

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

Characteristics

Total Patients (N = 53)

With Genioplasty (N = 39)

Without Genioplasty (N = 14)

P

Incisor Relation

Overjet, mm (Mean ± SD)

4.4 ± 2.0**a

4.1 ± 1.8**a

5.0 ± 2.5*b

0.25†

Overbite (Mean ± SD)

1.4 ± 1.8**a

1.2 ± 1.9**a

1.8 ± 1.6*b

0.43†

Right second molar relation

Overjet, mm (Mean ± SD)

4.9 ± 2.1**b

4.9 ± 1.7**b

4.9 ± 2.9*b

0.68†

Overbite, mm (Mean ± SD)

−2.0 ± 1.6**b

−2.0 ± 1.4**a

−1.8 ± 2.0*b

0.97†

Left second molar relation

Overjet, mm (Mean ± SD)

4.4 ± 1.9**b

4.6 ± 1.8**b

4.1 ± 2.1*b

0.62†

Overbite, mm (Mean ± SD)

−1.9 ± 1.3**a

−1.9 ± 1.4**a

−2.1 ± 1.2*b

0.44†

Right first molar relation

Angle Class I, n (%)

18 (34)**c

12 (31)**c

7 (50)*c

0.50‡

Angle Class II, n (%)

25 (47)

19 (49)

5 (36)

Angle Class III, n (%)

4 (8)

3 (7)

1 (7)

Not available, n (%)

6 (11)

5 (13)

1 (7)

Left first molar relation

Angle Class I, n (%)

16 (30)**c

14 (36)**c

3 (22)*c

0.17‡

Angle Class II, n (%)

30 (57)

21 (54)

8 (57)

Angle Class III, n (%)

1 (2)

0 (0)

1 (7)

Not available, n (%)

6 (11)

4 (10)

2 (14)

Midline discrepancy, mm (Mean ± SD)

0.8 ± 0.9**b

0.7 ± 0.7**b

1.1 ± 1.4*b

0.77†

  1. †Statistical analysis was carried out using the Mann Whitney U test (with vs. without genioplasty).
  2. ‡Statistical analysis was carried out using the chi-square test (with vs. without genioplasty).
  3. *p < 0.05 (before vs. after simulation).
  4. **p < 0.001 (before vs. after simulation).
  5. aStatistical analysis was carried out using the paired t-test (before vs. after simulation).
  6. bStatistical analysis was carried out using the Wilcoxon signed ranks test (before vs. after simulation).
  7. cStatistical analysis was carried out using the chi-square test (before vs. after simulation).
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