Linoleic acid (LA) is known to have a whitening effect on hyperpigmented skin, and is encapsulated in liposomes for topical application because of its low solubility in aqueous solution, although the effect of liposomalization of LA on the whitening activity has not been evaluated. In the present study, we evaluated the effect of liposomalization on the whitening activity of LA by using LA in e...

This letter proposes an algorithm for linear whitening that minimizes the mean squared error between the original and whitened data without using the truncated eigendecomposition (ED) of the covariance matrix of the original data. This algorithm uses Lanczos vectors to accurately approximate the major eigenvectors and eigenvalues of the covariance matrix of the original data. The major advantag...

Beagle dogs were given chloroform in a toothpaste base orally in gelatin capsules on 6 d/wk for 7 1/2 yr, followed by a 20-24 wk recovery period. Groups of 16 males and females received 0.5 ml/kg/d of the vehicle (toothpaste without chloroform) and 8 dogs of each sex remained untreated. Treated groups comprised 8 dogs of each sex remained untreated. Treated groups comprised 8 dogs of each sex,...

OBJECTIVE This in vitro study aimed to investigate the preventive effect of brushing with anti-erosive toothpastes compared to a conventional fluoride toothpaste on dentine erosion. MATERIALS AND METHODS Bovine dentine specimens (n=12 per subgroup) were eroded in an artificial mouth (6 days, 6×30 s/day) using either citric acid (pH:2.5) or a hydrochloric acid/pepsin solution (pH:1.6), simulat...

although esthetic is a relative issue, depending upon the country and culture, almost all around the world, there is a consensus that a beautiful set of teeth is the one which is white and bright and is aligned regularly. in iran also the main feature of a beautiful tooth is its whiteness. during the past decades and centuries, tooth discoloration was considered as an esthetic issue and differe...

the aim of this randomized controlled clinical trial was to investigate the effect of a new iranian toothpaste and a commercially available toothpaste containing desensitizing agent (5% potassium nitrate) on dentine hypersensitivity in a 24-week study.fifty healthy volunteers, who had at least two sensitive root surfaces, completed the study period. the participants were randomly given one of t...

Hydroglycolic extract from inflorescence of Etlingera elatior (Zingiberaceae) (EE) was determined for its whitening and anti-aging potentials by studying its in vitro antioxidant capacity using two different assays, by investigating its in vitro anti-tyroisnase activity against tyrosinase, by demonstrating its in vitro anti-aging effect against collagenase, and by evaluating its in vivo skin wh...

BACKGROUND: The most common periodontal disease in developing countries is gingivitis. Gingivitis a dental and oral health problem with reasonably high prevalence society at all age groups. characterized by inflammation bleeding of the gums. One way to prevent gums use herbal toothpaste. AIM: aim study was determine effectiveness using betel leaf toothpaste against gingivitis marginalis Rima Je...