TABLE 1:

Evolution of occlusion before and after second procedures

Initial/Final Occlusion	Total	Subtotal	Incomplete	Lost to Follow-up	Dead
Total n = 496	359	52	14	24	47
Subtotal n = 171	50	72	13	9	27
Incomplete n = 16		5	6	1	4
Total n = 683	409	129	33	34	78
After second treatment	13	20	1
Total n = 683	422	148	1	34	78

Note.—First column indicates initial occlusion; first line indicates evolution of occlusion.