Randomized Clinical Trial on the Efficacy of a New Bleaching Lacquer for Self-application

Abstract

It can be concluded that the new bleaching lacquer is efficacious; however, a double application does not seem to be obligatory.

Transparent Nanocomposites of Radiopaque, Flame-Made Ta2O5/SiO2Particles in an Acrylic Matrix

“…[1] This is a result of the excellent aesthetic properties of these fillings, as well as health concerns regarding mercury release from amalgam fillings. [2] Therefore, the relation of filler properties to composite characteristics, such as radiopacity, [3] tensile strength, [4] hardness, [5] shrinkage, [6] wear, [2] and transparency [1] have been intensely studied in the last few years.…”

12-Month color stability of enamel, dentine, and enamel–dentine samples after bleaching

“…Several laboratory and clinical studies have demonstrated carbamide peroxide or hydrogen peroxide bleaching solutions to be effective in whitening of discoloured teeth [2,4,6,16,26,27]. Thereby, efficacy might be related to the concentration of the active bleaching ingredient, the application time of the agents and the potential to penetrate dental hard tissues [10,15,22,23].…”

“…The substantial increase of lightness and decrease of chroma observed directly after bleaching is, however, often followed by a decrease of whitening in the post-bleaching period indicating that the bleaching effect might not be stable over time. After an initial reduction of lightening possibly due to rehydration processes in the first weeks after bleaching [17,19,26] a further colour regression towards baseline shades might occur. Two-year evaluation of nonvital tooth whitening revealed a 19% reduction compared to tooth colour directly after bleaching [4].…”

Efficacy and Colour Stability of Two Different at-Home Bleaching Systems: One-year Randomized Controlled Clinical Trial

“…Bunun nedeni, renk tonunun rehidratasyona bağlı olarak bu sürede nihai değerine ulaştığı görüşüdür. 18 Beyazlatma tedavilerinde geri dönüş (relaps) değerlendirmesi için beyazlatmadan 6 ay sonra ve beyazlatmadan 1 yıl sonra ölçümler yapılmıştır. Beyazlatma tedavisinden 6 ay sonra değerlendirme, renklenmede geri dönüşün belirlenmesi için Amerikan Diş Hekimleri Derneği tarafından tavsiye edilen minimum süredir.…”