Radiographic Position of Impacted Mandibular Third Molars and Their Association with Pathological Conditions

Table 3

Frequency and percentage of complications based on relationship with the mandibular ramus.

Pell and Gregory (ramus)	Root resorption			Distal caries			Pathologic lesions			Relation with the IAC
	n (%)	OR (95% CI)	value	n (%)	OR (95% CI)	value	n (%)	OR (95% CI)	value	n (%)	OR (95% CI)	value
I	167 (10.4)	1	—	122 (7.6)	1	—	30 (1.9)	1	—	522 (32.6)	1	—
II	82 (5.1)	0.39 (0.29,0.52)	<0.001	73 (4.6)	0.51 (0.38,0.7)	<0.001	83 (5.2)	2.73 (1.79,4.25)	<0.001	539 (33.7)	0.86 (0.7,1.06)	0.161
III	3 (0.2)	0.5 (0.12,1.48)	0.272	0 (0)	0.08 (0,1.3)	0.077	6 (0.4)	8.07 (2.76,20.84)	0.057	18 (1.2)	1.34 (0.56,3.75)	0.535

I is considered as the reference level.