Some stannous fluoride-containing toothpastes also contain ingredients that allow for better stain and calculus removal. ![]() At similar fluoride concentrations, toothpastes containing stannous fluoride have been shown to be more effective than toothpastes containing sodium fluoride for reducing the incidence of dental caries and dental erosion, as well as reducing gingivitis. Sodium fluoride (NaF) is the most common source of fluoride, but stannous fluoride (SnF 2), and sodium monofluorophosphate (Na 2PO 3F) are also used. The additional fluoride in toothpaste has beneficial effects on the formation of dental enamel and bones. Fluoride is present in small amounts in plants, animals, and some natural water sources. Fluorides įluoride in various forms is the most popular and effective active ingredient in toothpaste to prevent cavities. The American National Standards Institute and American Dental Association considers toothpastes with an RDA below 250 to be safe and effective for a lifetime of use. Toothpastes with RDA values above 250 are potentially damaging to the surfaces of teeth. The abrasive effect of toothpaste is indicated by its RDA value. The polishing of teeth removes stains from tooth surfaces, but has not been shown to improve dental health over and above the effects of the removal of plaque and calculus. Some brands contain powdered white mica, which acts as a mild abrasive, and also adds a cosmetically pleasing glittery shimmer to the paste. Representative abrasives include particles of aluminum hydroxide (Al(OH) 3), calcium carbonate (CaCO 3), magnesium carbonate(MgCo3), sodium bicarbonate, various calcium hydrogen phosphates, various silicas and zeolites, and hydroxyapatite (Ca 5(PO 4) 3OH).Ībrasives, like the dental polishing agents used in dentists' offices, also cause a small amount of enamel erosion which is termed "polishing" action. The removal of plaque inhibits the accumulation of tartar ( calculus) helping to minimize the risk of gum disease. These insoluble particles are designed to help remove plaque from the teeth. Toothpastes are derived from a variety of components, the three main ones being abrasives, fluoride, and detergent.Ībrasives constitute 8-20% of a typical toothpaste. However, the active ingredients in toothpastes are able to prevent dental diseases with regular use. A 2016 systematic review indicated that using toothpaste when brushing the teeth does not necessarily impact the level of plaque removal. Toothpastes may also help to control and remove plaque build-up, promoting healthy gums. Toothpastes containing fluoride are effective at preventing tooth decay. ![]() Reduces the inconvenience caused by listening through headphones over extended periods of time.Toothpastes are generally useful to maintain dental health.Live Concerts and Music all sound more authentic with Waves Nx! Experience all of your favorite content the way it was meant to be heard!.Spotify Support - stream music directly from Spotify using Spotify Premium service with Waves Nx – enjoy a wealth of content in immersive 3D audio using Waves Nx.Get the ideal acoustics of a recording studio– inside your headphones!.With Waves Nx any pair of headphones will deliver the same listening experience a GREAT speaker system does. ![]() Waves Nx uses head tracking and scientific models of the way our brains and ears perceive audio to create an amazing sounding fully immersive 3D audio experience that turns any pair of headphones into a high quality Speaker Setup, it not only models the speakers, it models the entire room! listening to speakers as our example, there are several major differences: If we take listening to stereo headphones vs. The perception of sound over headphones is a completely different experience. It combines the interactions between the acoustic sound waves and the room or space, the interaction with our head and ears, the reaction of our middle and inner ear and the audio nerve, and finally our brain’s cognition and interpretation of the acoustic scene. The perception of spatial sound in the real world is a complex phenomenon. With the Waves Nx App and the Waves Nx Head Tracker device you can use any headphones and listen to all of your content in truly immersive 3D sound, everywhere you go! Waves Nx is a ground breaking audio technology that finally bridges the gap between speakers and headphones.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |