Skip to main content

Table 4 Accuracy of the diagnostic answers given, according to imaging modality: OPG versus CBCT

From: Do we need CBCTs for sufficient diagnostics?-dentist-related factors

Question pertaining to

OPG (%)

CBCT (%)

p value

Odds ratio (95% CI)

Contact to nerve

91

93

0.616

0.8 (0.3–2.4)

Displacement of tooth

88

90

0.543

0.7 (0.3–0.5)

Number of roots

95

94

0.775

1.2 (0.3–5.1)

Contact to adjacent teeth

73

70

0.643

1.2 (0.6–2.3)

Pericoronar cyst

73

75

0.764

0.9 (0.5–1.7)

Maturation of root

84

83

1.000

Resorption (bone or tooth) toothtooth)

65

72

0.305

0.7 (0.4–1.4)

Ankylosis

86

85

1.000

Preservation

83

78

0.510

1.3 (0.6–2.7)

  1. Percentage of correct answers given based on OPG and CBCT (after OPG). To assess the differences between the imaging modality, p value of Fisher’s exact test is given together with odds ratio (OR), including 95% confidence intervals (CI). OR refers to CBCT with OPG as reference