The purpose of this study was to evaluate the clinical efficacy and safety of 16% and 35% carbamide peroxide as in-office bleaching agents.
Carbamide peroxide in 16% and 35% concentration are effective and safe for bleaching discolored vital teeth, however, 35% concentration gave significantly more lightening effect without additional side effects compared to 16% concentration.
Onwudiwe UV, Umesi DC, Orenuga OO, Shaba OP. Clinical evaluation of 16% and 35% carbamide peroxide as in-office vital tooth whitening agents. Nig Q J Hosp Med. 2013;23(2):80-84.
See full study here.
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