Groups | Description of experimental groups | ||
Control group 35% | A Slab untreated and stored in artificial saliva | ||
Carbamide peroxide | B Slab treated with 35% CP and stored in artificial saliva | ||
C Slab treated with 35% CP, treated with catalase and stored in artificial saliva | |||
D Slab treated with 35% CP, treated with 5% sodium fluoride and stored in artificial saliva | |||
E Slab treated with 35% CP, treated with catalase, treated with 5% sodium fluoride and stored in artificial saliva |
CP: Carbamide peroxide