Characterization of Chronic Mechanical Irritation in Oral Cancer

Table 2

Distribution of CMI factors in BIML, CTU, and OC groups.

Variable	Group			value
	BIML	CTU	OC
Dental factors
Malposition	82	17	20	0,336
Diastema	56	18	12	0,214
Sharp teeth	144	41	32	0,003
Sharp/rough restorations	92	18	17	0,867
Prosthetic factors
Dentures	76	20	21	0,099
Sharp/rough dentures	56	9	17	0,042
Denture retainers	37	16	6	0,019
Overextended flanges	27	13	8	0,024
Lack of stability	69	20	21	0,028
Lack of retention	37	14	19	0,000
Functional factors
Functional (total)	152	36	26	0,373
Tongue interposition	47	21	16	0,001
Sucking	56	9	9	0,584
Biting	121	26	16	0,130
Others	49	8	5	0,564

CMI, Chronic Mechanical Irritation; BIML, Benign Irritative Mechanical Lesions; CTU, Chronic Traumatic Ulcer; OC, Oral Cancer. Bold denotes statistical significance.