Table 1: Central giant cell granuloma classification criteria.

Group I Aggressive Group II Non-aggressive
Lesion size ≥ 5 cm < 5 cm
Rapid growth Yes No
Root resorption Frequently No
Tooth displacement Frequently No
Perforation of bone cortex Frequently No
Recurrence after curettage Yes No

Classification proposed by Chuong, et al. and adapted by Peacock, et al. [6,7].