Real gold jewelry is made of a solid gold alloy, whose gold content is above a certain threshold. In the United States, for example, pieces containing less than 58.3% gold (10 karats) are not considered gold for commercial purposes. What people usually refer to as fake gold is jewelry that is made of another metal (such as nickel, copper, silver, etc.) and covered with a layer of gold (gold plated) or with a thin gold sheet (gold filled). How to Tell If Gold Is Real. Below are some of the more reliable ways to test jewelry for gold: Acid Test
In-office teeth whitening cost: $450-650 per visit (on average) nationwide. COST PROFESSIONAL DISPENSED TAKE-HOME TEETH WHITENING. Many cosmetic dentists have the opinion that professionally dispensed take-home whitening kits can produce the best results over long term.
Dentists have known for years that tray whitening or bleaching is a fast, safe and predictable way to whiten teeth 2-5 shades in a matter of days. Most dentists charge between $400 and $500 dollars for this treatment and it is worth it.Chances are you know someone who has whitened their teeth and gotten great results.ere's How Teeth Whitening Works. A whitening gel is placed in a tray that fits over your teeth. As the active ingredient in the gel, carbamide peroxide, is broken down, oxygen enters the enamel and bleaches the colored substances. The structure of the tooth is not changed; only the tooth is made lighter and whiter.