Once you stop using a whitening gel, your teeth will begin to show discoloration again - usually within a month.
Also, ultraviolet light, heat, or a combination of the two may be used to intensify and speed up the whitening process. That’s because the in-office solution is much stronger than products designed for home use. Whitening that is performed at your dentist’s office can help you achieve brighter, whiter teeth faster. In one session, the teeth may be lightened from five to ten shades. In-office tooth whitening systems contain from 15% to 43% peroxide. People with sensitive teeth may find carbamide peroxide to be a gentler alternative to hydrogen peroxide. Over-the-counter (OTC) teeth whitening products contain from 3% to 20% hydrogen peroxide or carbamide peroxide (also known as urea). Enamel is translucent dentin makes up the bulk of your overall tooth color or shade, which dentists describe as A1, A2, or A3, depending on the degree of discoloration. Contrary to popular belief, it is dentin, not enamel, that teeth whitening gels target. It interacts with stain molecules, disrupting the chemical bond and ultimately leading to whiter, brighter teeth. Hydrogen peroxide penetrates tooth enamel and dentin to get to the discoloration. Teeth whitening gels contain an active whitening ingredient: hydrogen peroxide or carbamide peroxide. See our list of tips to find out more about who shouldn’t use a teeth whitening gel. However, teeth whitening is a cosmetic procedure with a measure of risk, and it’s not recommended for everyone. Teeth whitening gels work well for individuals with healthy gums and unrestored teeth (no fillings or crowns). They are inside the tooth and show through the enamel. These stains are known as intrinsic stains. As we’ve said, toothpaste is quite effective at lightening or removing extrinsic stains, but it cannot reach and remove stains that are beneath the enamel. Extrinsic stains are those found on the surface of the enamel. Teeth whitening products work on two basic types of stains: extrinsic and intrinsic. An effective teeth whitening gel can remove stains in both of these layers. But toothpaste only removes surface stains it cannot permeate the enamel or the substance just beneath it, known as dentin. Some whitening toothpastes also contain gentle chemical or polishing agents for additional help with stain removal. Key considerationsĪll types of toothpaste help remove discoloration and surface stains. In-office treatments provide the fastest teeth whitening results, but they also cost the most. When you are ready to purchase a whitening gel, consider our recommendations. If you are ready for a sparkling smile, read on to learn more about teeth whitening options. As people discover how confident and happy they feel with a brighter, whiter smile, they become repeat customers. These products have surged in popularity in recent years, and it’s not surprising. The good news is, you can get rid of the embarrassment of yellowed or stained teeth by using an affordable teeth whitening gel at home. If your teeth are yellowed or stained and you seek a whiter, brighter smile, you have two options: at-home care or in-office teeth bleaching. Discolored teeth act as a social liability: it appears that if you do not care for your teeth, your whole body hygiene may leave much to be desired. That's hard to do if your teeth are yellowed and stained. You want to present a clean, healthy, and vibrant smile to the world. The tear resistance for this sheet reach up to 300kg.Ĭan not biocompatible for surface contact and contact with soft tissues in the oral cavity.Buying guide for best teeth whitening gel The bearing capacity of the pvc particle is 200kg The material should be able to exert of light constant force in the range of 1 – 2 N or 100 to 200 gmf when deflected to 0.25mm to 1 mm, when thermoformed. There's a transparent film over the sheet to prevent from moisture The material does not absorb moisture during storage or should be sufficiently packaged to prevent moisture absorption. Good stress retention over a 2 week period when deflected over a 1 mm range when formed. Material should not shrink after thermoforming The melting point for hard sheet is 160 degrees Celsius, which is equal to 315 F. Thermoforming temperature should be suitable for use with 3D printed plastic models. Uniform thermoforming over a reasonable temperature range. The materials of the sheet is food grade pvc
0 kommentar(er)
