Introduction: Cention N, a new alternative tooth coloured resin based filling material. Toothbrushing abrasion is key issue in restorative dentistry. A smooth surface crucial factor to be considered for establishing successful restoration because the roughness of material results plaque deposition, discoloration restoration, microleakage and secondary caries. The present study aims evaluating N...

Allergic reactions and contact dermatitis caused by the ingredients in toothpaste have been reported. 1 Some studies have documented allergic reactions to the flavorings used, especially cinnamic aldehyde.,3 Others have reported skin reactions to the preservatives, especially sodium benzoate,4-6 and to aluminum. Still others have shown contact dermatitis caused by sodium lauryl sulfate and prop...

In natural image understanding, the whitening step plays an important role, especially within many unsupervised feature learning algorithms. Examples of these algorithms include ICA, TICA, Auto-encoder, and so forth. Current whitening techniques include Principal Component Analysis (PCA) and Zero-phase Component Analysis (ZCA). However, the drawbacks of these approaches are obvious: the time co...

In this paper we present a class of linear whitening filters termed linear extended whitening filters (EWFs) which are whitening filters that have desirable secondary properties and can be used for simplifying algorithms, or achieving desired side-effects on given secondary matrices, random vectors or random processes. Further, we present an application of EWFs for simplification of QR decompos...

We investigate the cryptanalysis of reducedround RC6 without whitening. Up to now, key recovery algorithms against the reduced-round RC6 itself, the reduced-round RC6 without whitening, and even the simplified variants have been infeasible on a modern computer. In this paper, we propose an efficient and feasible key recovery algorithm against reducedround RC6 without whitening. Our algorithm is...

A pomegranate extract (PE) from the rind containing 90% ellagic acid was tested for its skin-whitening effect. PE showed inhibitory activity against mushroom tyrosinase in vitro, and the inhibition by the extract was comparable to that of arbutin, which is a known whitening agent. PE, when administered orally, also inhibited UV-induced skin pigmentation on the back of brownish guinea pigs. The ...

The aim of this study was to determine heritability estimates of treatment responses to a 10% hydrogen peroxide strip-based whitening system in twins. Eighty-five twin pairs were randomly assigned to 10% hydrogen peroxide whitening strips or placebo strips without peroxide. Both twins (monozygotic or dizygotic) received the same treatment. Maxillary teeth were treated for 30 minutes twice daily...