A review published in the Journal of Dentistry analyzed 88 studies, including in-vitro and clinical trials, to look at the active ingredients, effectiveness and potential adverse effects of over-the-counter bleaching products.
Whitening toothpastes and whitening strips were the most studied products.
Clinical trials supported the efficacy of whitening strips, whereas in-vitro studies primarily validated the bleaching potential of toothpastes, mouth rinses and whitening trays.
The researchers said clinicians should offer guidance and recommendations to patients regarding the use of over-the-counter bleaching products and caution patients about the potential for developing tooth sensitivity and gingival irritation when using the products.
Read more: Practice Update
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