ASYMPTOMATIC / CHRONIC APICAL PERIODONTITIS

a. Radiographic changes present
 Widening of PDL space
 Thickening of lamina dura
 Apical bone resorption

b. Pain – maybe slightly present or no pain at all.

c. In chronic cases, the cell rests of Malassez that was asleep down there, due to chronic irritation, it will start proliferating thus leading to granuloma, abscess n cyst.

d. So the origin of abscess, granuloma etc is cell rests of Malassez