1.

Pathologies and Pericoronitis Associated With Impacted Third Molars

	Percentage
Pathology	Affected
Internal resorption	0.85
Cysts	1.65
Periodontal bone loss	4.72
Resorption on distal surface of second molar	4.78
Pericoronitis	8
Total	20

Source. See references 3, 5, 7, and 8.