A silica toothpaste containing blue covarine: a new technological breakthrough in whitening

Unilever Oral Care, Bebington, Wirral, UK.
International Dental Journal (Impact Factor: 1.2). 10/2009; 59(5):284-8. DOI: 10.1922/IDJ_2261Joiner05
Source: PubMed

ABSTRACT There continues to be a demand from consumers and patients for products that whiten teeth. These products are generally either peroxide-based bleaching formats to improve intrinsic tooth colour or whitening toothpastes with enhanced physical and chemical cleaning properties to remove and prevent extrinsic tooth stain. Through the understanding of colour science and its application to tooth colour a new approach to tooth whitening is now possible from toothpaste. This is achieved by the deposition of blue covarine onto the tooth surface where it changes the optical properties of the teeth such that their appearance is both measurably and perceivably whiter immediately after treatment. In vitro and in vivo studies confirm the efficacy of this whitening approach in a silica based whitening toothpaste containing blue covarine. In addition, this toothpaste has been shown not to have an undue degree of abrasivity to enamel or dentine compared to other relevant commercially available products, and is an efficacious source of fluoride.

  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The aim of the present work is to analyze the standards of marketed cosmetic products which are largely consumed in day to day life of the people. The cosmeceutical should be tested for efficacy to ensure a proven skin benefit and also to substantiate marketing claims. The work was done by keeping the ideas of Bureau of Indian Standards to analyze the cosmetic products. The evaluation for the following cosmetics such as tooth pastes (Colgate, Closeup, Pepsodent, Vicco and Anchor) and face powders (Ponds, Eva, Fa, Cuticura and Spinz) are performed for their quality. All the marketed tooth pastes and face powders which had been evaluated complied with the standards specified by Bureau of Indian Standards. Hence all the selected marketed tooth pastes and selected face powders were found to be of good quality.
  • [Show abstract] [Hide abstract]
    ABSTRACT: To review and summarise the whitening agents contained within tooth whitening toothpaste formulations, their mode of action in tooth whitening, and the in vitro and clinical methods used to evaluate and demonstrate their efficacy. Original scientific full papers or reviews listed in ISI Web of Science and Medline were included in this review using the search terms white*, toothpaste and dentifrice. Due to the reported consumer and patient dissatisfaction with their perceived tooth color, toothpaste manufacturers have responded by developing a vast array of contemporary whitening toothpastes. One of the key functional ingredients in whitening toothpastes is the abrasive system. In general, these have been designed to give effective removal of extrinsic stains and help prevent tooth stains from reforming without undue abrasivity towards the dental hard tissues. Whitening toothpastes may contain additional agents that augment the abrasive cleaning by aiding the removal and/or prevention of extrinsic stains, for examples, peroxide, enzymes, citrate, pyrophosphate and hexametaphosphate, or optical agents such as blue covarine which can improve tooth whiteness following tooth brushing. In vitro methods used to evaluate tooth whitening efficacy typically determine the ability of a toothpaste formulation to remove/prevent model extrinsic stains on substrates such as enamel or hydroxyapatite or changes in the intrinsic color of tooth specimens. Clinical protocols for evaluating the efficacy of whitening toothpastes typically determine either stain removal or prevention, where changes in natural stain or chlorhexidine/tea induced stain are measured typically over 2-6 weeks. In some clinical studies the overall tooth color change was measured using techniques such as Vita shade guides, colorimeters and image analysis of digital photographs of teeth.
    Journal of dentistry 01/2010; 38 Suppl 2(Suppl 2):e17-24. DOI:10.1016/j.jdent.2010.05.017 · 2.84 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Several mouth rinses promising whiter smiles are on the market today.
    Journal of Esthetic and Restorative Dentistry 06/2014; DOI:10.1111/jerd.12107 · 0.84 Impact Factor