There were 52 subjects in Group I , 51 in Group II , 49 in Group III , 52 in Group IV , 52 in Group V and 52 in Group VI ; 63.46 % of patients in Group I , 39.21 % in Group II , 38.77 % in Group III , 36.53 % in Group IV , 38.46 % in Group V and 84.61 % in Group VI experienced pain .
