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Table 2 Male and female changes comparisons (t-tests)

From: Aging changes in maxillary anterior teeth in untreated individuals: an observational longitudinal study

Variable

Teeth

T2-T1

P

T3-T1

P

T3-T2

P

Female

Male

Female

Male

Female

Male

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Width/Height Proportion (mm)

1

 − 0.05

0.04

 − 0.03

0.06

0.516

 − 0.02

0.14

0.00

0.06

0.741

0.03

0.12

0.03

0.07

0.983

2

 − 0.05

0.04

 − 0.05

0.06

0.775

 − 0.08

0.12

 − 0.05

0.12

0.621

 − 0.02

0.11

0.00

0.13

0.715

3

 − 0.11

0.10

 − 0.09

0.07

0.499

 − 0.16

0.13

 − 0.12

0.13

0.540

 − 0.04

0.09

 − 0.03

0.12

0.806

Anterior view width (mm)

1

 − 0.03

0.21

 − 0.06

0.14

0.635

0.02

0.39

 − 0.27

0.28

0.066

0.05

0.46

 − 0.20

0.23

0.091

2

 − 0.08

0.23

 − 0.03

0.35

0.673

 − 0.18

0.42

 − 0.08

0.50

0.620

 − 0.09

0.28

 − 0.05

0.36

0.756

3

0.03

0.18

 − 0.06

0.33

0.433

 − 0.01

0.26

 − 0.16

0.51

0.421

 − 0.04

0.35

 − 0.10

0.49

0.772

Crown Angulation (º)

1

 − 1.46

1.65

 − 1.02

2.02

0.589

 − 3.20

2.97

 − 2.72

2.51

0.681

 − 1.74

3.49

 − 1.70

1.93

0.970

2

 − 1.95

2.41

 − 1.50

2.06

0.639

 − 3.50

2.85

 − 1.12

3.12

0.074

 − 1.55

2.48

0.38

3.05

0.117

3

 − 3.99

5.31

 − 0.64

1.77

0.045*

 − 1.81

4.11

0.93

3.67

0.106

2.17

3.72

1.57

3.50

0.697

Gingival step (mm)

1–2

 − 0.11

0.34

 − 0.14

0.43

0.861

 − 0.36

0.57

 − 0.41

0.68

0.832

 − 0.24

0.44

 − 0.27

0.54

0.898

1–3

 − 0.42

0.33

 − 0.48

0.75

0.830

 − 1.10

1.09

 − 1.17

1.08

0.877

 − 0.67

0.96

 − 0.68

0.81

0.966

Incisal step (mm)

1–2

 − 0.08

0.21

0.10

0.19

0.079

0.09

0.33

0.39

0.36

0.056

0.18

0.31

0.29

0.36

0.464

1–3

0.08

0.37

0.29

0.60

0.334

 − 0.03

0.65

0.42

0.63

0.104

 − 0.11

0.62

0.13

0.51

0.317

  1. *Statistically significant at P < 0.05