Correlation between Transforming Growth Factor-β and Periapical Lesions in Patients with Chronic Apical Periodontitis

Table 4

Relationship between TGF-β mRNA expression and different degrees of inflammation (x ± s).

Grade of inflammation	n	Mean	Standard deviation	value
Mild	5	12.100	1.343	0.035
Moderate	8	16.211	3.975	0.028
Severe	3	17.633	1.555	0.506