Table 4 The vertical distance between the posterior maxillary roots apices and the maxillary sinus floor related to age, gender, sides, and scores in the coronal view

Age

20-30

9.2±8.0

3.2±5.1

1.5±3.6

1.3±3.1

1.6±3.7

0.6±2.9

1.3±3.1

2.4±3.5

<0.001

>30

13.6±9.3

5.8±6.6

3.5±5.0

2.8±3.9

3.0±4.1

1.6±3.2

2.3±5.2

3.4±4.1

<0.001

P-value*

<0.001

<0.001

<0.001

<0.001

<0.001

0.001

<0.001

<0.001

Gender

Male

10.6±8.9

3.9±6.2

2.4±4.7

1.8±3.9

1.9±4.3

0.9±3.4

1.4±3.7

2.4±4.0

<0.001

Female

10.0±8.1

3.8±5.0

1.7±3.3

1.6±2.8

2.0±3.7

0.8±2.5

1.7±3.8

2.8±3.4

<0.001

P-value*

0.741

0.083

0.956

0.166

0.041

0.11

0.001

<0.001

Side

Right

10.2±8.5

4.0±5.6

2.1±4.2

1.7±3.3

2.0±3.8

0.8±3.0

1.7±3.4

2.8±3.7

<0.001

Left

10.4±8.5

3.7±5.6

1.9±4.0

1.6±3.4

1.9±3.9

0.8±2.9

1.4±4.1

2.5±3.7

<0.001

P-value*

0.648

0.293

0.545

0.446

0.891

0.532

0.51

0.3

Score

Type 1

12.0±8.0

7.1±5.5

4.9±4.1

3.9±3.4

4.8±3.6

3.5±2.9

4.0±3.4

4.5±3.5

<0.001

Type 2C

0.01±0.01

0.01±0.01

0.01±0.01

0.01±0.01

0.01±0.01

0.01±0.01

0.01±0.01

0.01±0.01

0.148

Type 2LC

0.15±0.35

0.01±0.01

0.01±0.01

0.03±0.11

0.01±0.01

0.01±0.01

0.01±0.01

0.04±0.13

0.89

Type 2P

-1.2±0.5

-1.2±0.8

-1.5±1.2

-1.4±1.0

-1.5±1.0

-1.6±1.3

-1.5±3.2

-1.1±1.0

<0.001

P-value^ª

<0.001

<0.001

<0.001

<0.001

<0.001

<0.001

<0.001

<0.001