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Volume 8 Issue 10 (October, 2020)

Original Articles

An in vitro study of comparison of different bleaching agents in temporary and permanent teeth
Ishfaq Ahmad Bhat, Mir Yasser Abdullah, Jan Mohd Bhat

Background: The tooth discolorations are classified as extrinsic and intrinsic. The present study was conducted to compare efficacy of hydrogen peroxide (HP), sodium perborate (SP) and carbamide peroxide (CP) as bleaching agents for permanent and primary teeth. Materials & Methods: This study was conducted on 90 freshly extracted teeth (45 permanent and 45 primary teeth) with intact crowns. Teeth were subdivided into 3 groups, according to the bleaching material used in the pulp chamber in both permanent and primary teeth (subgroup A: 10% CP gel; subgroup B: 9.5% HP gel; subgroup C: 10% SP paste). Results: The mean color value at day 0 in sub group I A was 9.4, in group IB was 10.2 and in group III A was 11.4, in sub group II A was 10.8, group II B was 10.6 and group III B was 11.2. The difference was non- significant (P> 0.05). The mean color value at day 7 in sub group I A was 3.8, in group IB was 6.7 and in group III A was 9.4, in sub group II A was 8.2, group II B was 8.6 and group III B was 8.8. The difference was significant (P< 0.05). The mean color value at day 14 in sub group I A was 2.8, in group IB was 6.4 and in group III A was 8.4, in sub group II A was 7.2, group II B was 7.6 and group III B was 8.2. The difference was significant (P< 0.05). Conclusion: Authors found that CP, HP, and SP were equally effective in management of discolored primary teeth whereas in discolored permanent teeth CP was effective. Key words: Bleaching agent, Primary teeth, Permanent teeth

 
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