Postanesthetic Cold Sensibility Test as an Indicator for the Efficacy of Inferior Alveolar Nerve Block in Patients with Symptomatic Irreversible Pulpitis of Mandibular Molars

Table 3

Statistical analysis of postanesthetic cold test results versus gold standard test results.

Test results			Gold standard		Total
			Positive	Negative
Cold test	Positive	Count	29	2	31
		Expected count	18.9	12.1	31.0
	Negative	Count	4	19	23
		Expected count	14.1	8.9	12.0
Total		Count	33	21	54
		Expected count	33.0	21.0	54.0
Pearson Chi-square test		χ^2	32.223
		df	1
		Sig. ( value)	0.000