Table 1 Characteristics of cases diagnosed with cracked teeth.

From: Dental implant placement is a possible risk factor for the development of multiple cracks in non-endodontically treated teeth

Parameter

Number of cases7

Percent7 (%)

Implant amount

Single

9

27.3

Two

9

27.3

Three or more

15

45.5

Implant location in relation to the cracked tooth

Adjacent

9

27.3

Non adjacent

17

51.5

Multiple sites

7

21.2

Time from implant loading to crack diagnosis

Less than 1 year

10

30.3

Between 1 to 3 years

12

36.4

More than 3 years

11

33.3

Gender

Women

36

50

Men

36

50

Patients age more than 50

39

54

Tooth type

Molar

51

63.8

Premolar

24

30

Incisor

5

6.3

Vital pulps1

63

78.8

Normal periapical diagnosis2

69

86.3

Fracture location (*)

M-D3

24

41.4

B-L3

20

34.5

Both

14

24.1

Amount of fractures (*)

Single

43

63.2

multi

25

36.8

Presence of both adjacent teeth4

55

68.8

Type of restoration (*)

Amalgam

55

63

Composite

12

14

Full coverage

6

7

No restoration

4

5

Extension of restoration5

Extensive

59

74.7

Full coverage restoration

6

7

Minor/none

13

16.5

Presence of caries

50

63.3

Deep periodontal pockets6

26

34.7

  1. 1Vital = the tooth was diagnosed with either normal pulp or pulpitis, Non-vital = the pulp was necrotic; 2categorized as ‘normal’ or ‘with periapical pathology; 3M-D = mesio-distal, B-L = buccolingual; 4present = both adjacent teeth were present; 5extensive restoration=the restoration covered two or more of the tooth crown aspects, but not the whole crown, minor restoration = the restoration covered one aspect of the tooth crown; 6deep periodontal pocket = probing depth >4 mm; 7In cases where the evaluated parameters were not available from the patients’ medical records, the results were presented as a percentage from the number of cases in which that parameter was available; *P < 0.05.