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Table 3 Demographic data of patients

From: Microsurgical endodontic treatment of the upper molar teeth and their relationship with the maxillary sinus: a retrospective multicentric clinical study

Factors

IRCCS Galeazzi

Bristol

Total

n

%

n

%

n

%

Sex

Male

8

57.1

4

57.1

12

57.1

Female

6

42.9

3

42.9

9

42.9

Age

 > 45

6

42.9

1

14.3

7

33.3

 < 45

8

57.1

6

85.7

14

67.7

Tooth type

1.6

5

35.7

2

28.6

7

33.3

1.7

1

7.2

0

 

1

4.8

2.6

6

42.8

5

71.4

11

52.4

2.7

2

14.3

0

 

2

9.5

Smoker

Yes

4

28.6

1

14.3

5

23.8

No

10

71.4

6

85.7

16

76.2

Fistula

Yes

0

 

5

71.4

5

23.8

No

14

100

2

28.6

16

76.2