Defination:-
It is defined as an odontogenic cyst of Inflammatory origin that is preceeded by a chronic periapical granuloma & stimulation of
cell rests of malaseez present in the periodontal membrane.
Classification:-
It is classified as follows---
1)
Periapical Cyst:- These are the radicular cysts which are present at root apex.
2)
Lateral Radicular Cyst:- These are the radicular cysts which are present at the opening of lateral accessory
root canals of offending tooth.
3)
Residual Cyst:- These are the radicular cysts which remains even after extraction of offending tooth.