Princeton's WordNet(4.00 / 1 vote)Rate this definition: 1  kin, kinsperson, family(noun) a person having kinship with another or others. he's kin; he's family. 2  kin, kin group, kinship group, kindred, clan, tribe(adj) group of people related by blood or marriage.
How much does tray teeth whitening cost? Topics | Oral Health | Teeth Whitening | How much does tray teeth whitening cost? You can expect to pay anywhere from $10 to $40 for a tray-based teeth whitening kit purchased over the counter (OTC) from a pharmacy or other retail store. You can also purchase tray-based teeth whitening systems from dentists. These systems feature custom-fit tooth trays or mouthpieces, which is why they are significantly more expensive than OTC tray-based teeth whitening kits. Purchasing a tray-based teeth whitening system from your dentist may cost up to $500.
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.