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Table 4 Comparison of numeric rating scale scores for smile features according to student gender

From: Smile aesthetics as perceived by dental students: a cross-sectional study

Features

Mean numeric rating scale score (mean ± SD)

Men

Women

p-valuea

Gingival smile

3.55 ± 0.52

3.87 ± 0.53

0.001b

Maxillary archmidline discrepancy

3.03 ± 0.86

3.11 ± 0.49

0.283

Buccal corridor fill

2.72 ± 0.66

2.89 ± 0.69

0.077

Gingival margin discrepancy

3.17 ± 0.89

3.05 ± 0.79

0.171

Hygiene

3.09 ± 0.75

3.21 ± 0.46

0.193

Gum recession

3.11 ± 0.84

3.27 ± 0.78

0.198

Diastema

3.60 ± 0.80

3.51 ± 0.84

0.283

Dental crowding

3.79 ± 0.61

4.00 ± 0.59

0.004b

Protrusion of anterior teeth

3.31 ± 0.73

3.32 ± 0.81

0.948

Incisor midline discrepancy

3.45 ± 0.88

3.58 ± 0.49

0.117

Hypodontia

4.71 ± 0.67

4.79 ± 0.59

0,082

Anterior teeth colour

3.59 ± 0.82

3.63 ± 0.57

0.592

“Golden proportion”

3.11 ± 0.63

3.34 ± 0.42

0.01b

Occlusal cant

3.41 ± 0.78

3.64 ± 0.75

0.006b

Convex occlusal plane

3.04 ± 0.83

3.16 ± 0.78

0.188

Flat occlusal plane

3.57 ± 0.84

3.54 ± 0.71

0.943

Reversed curvature of occlusal plane

3.95 ± 0.84

3.97 ± 0.74

0.55

  1. aMann-Whitney U test
  2. bstatistically significant difference