Intraoperative Assessment of Surgical Margins of Oral Squamous Cell Carcinoma Using Frozen Sections: A Practical Clinicopathological Management for Recurrences

Table 2

Clinical outcomes and histopathological diagnoses of surgical margins by frozen section techniques (FS).

Clinical outcomes	Histopathology of surgical margins by FS
	SCC	(%)	CIS	(%)	Epithelial dysplasia				Others	(%)	Total	(%)
					Moderate	(%)	Mild	(%)
Relapse-free	0	(0.0)	8	(6.2)	47	(36.7)	61	(47.7)	12	(9.4)	128	(100.0)
Relapse	5	(6.0)	24	(29.0)	28	(33.7)	20	(24.1)	6	(7.2)	83	(100.0)
Total	5	(2.4)	32	(15.2)	75	(35.5)	81	(38.4)	18	(8.5)	211	(100.0)

∗(bold) Differences between the relapse-free and relapse group were statistically significant (𝑃<0.001) in three categories of oral malignancies.