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How Does KöR Whitening work? 

Teeth whitening can often be a frustrating, problematic and unpredictable proposition. Historically, whitening system companies have promised ease-of-use, outstanding results and happy patients.But you’ve probably experienced a gap between what’s promised and what’s delivered. Most dentists providing teeth whitening have been frustrated with a lack of predictability, effectiveness, and longevity of effect, as well as complaints of sensitivity by patients.

Intrinsic tooth color is a result of large natural pigment and stain molecules trapped within the microstructure of teeth. The larger these molecules are, the more chromophores they contain, and the darker the teeth appear.

All peroxide gels work by forming hydrogen peroxide as their end product. Hydrogen peroxide breaks down to water, oxygen, and numerous radicals and byproducts known as “bleaching factors” that lighten teeth.oxygenation_00

Optimum whitening results are achieved only when these whitening gels are: fully potent; chemically influenced to produce a high percentage of free radicals (instead of simply oxygen and water); and are allowed extended time for these factors to diffuse thoroughly into the microstructure of teeth.

Clinical Research Associates (CRA) as well as other researchers have found that whitening gel in conventional whitening trays is only strongly active for 25-35 minutes. This is due to rapid contamination of the whitening gel by saliva.

Both saliva and sulcular fluid contain an abundance of the anti-oxidant enzyme peroxidase. When filling a set of upper and lower whitening trays with whitening gel, approximately 6.5mg of peroxide is placed in the trays. Saliva is capable of destroying a full 29mg of peroxide per minute! It takes very little contamination of the whitening gel in the trays by saliva to destroy whitening gel on contact.

KöR whitening KöR-Seal™ trays are specifically designed to seal both saliva and sulcular fluid out of the whitening trays. These trays, in combination with KöR whitening gels provide 6 to 10 hours of whitening activity compared to the typical 25-35 minutes of other systems.

The result is a thorough cleansing of debris from between enamel prisms (interprismatic spaces), and within enamel prisms (intraprismatic spaces and intracrystalline spaces), rejuvenating the enamel back to its youthful ability to whiten quickly and thoroughly — delivering truly amazing whiteness.

 

How does the KöR Whitening System combat the sensitivity issue? 

KöR Desensitizer helps desensitize and prevent sensitivity issues immediately, before they arise.

Our desensitizing method includes desensitizers that plug the orifices of dentinal tubules during whitening to “prevent” sensitivity, rather than simply attempting to treat the symptoms. The “Hydrodynamic Mechanism” theory of tooth sensitivity states that movement of the fluid within dentinal tubules is responsible for mechanically activating the nerves at the periphery of the pulp, causing a painful reaction. When the natural smear plugs are lost from the orifices of dentinal tubules, fluid within the tubules can move thirty-two times more freely, causing dentinal hypersensitivity.

The oxygenation process during whitening not only deeply cleanses the tooth, but also actively displaces the plugs in dentinal tubules, leaving the tubular fluid susceptible to flow. The whitening chemicals create an osmotic gradient in fluid flow within the dentinal tubules outward from the pulp. The result is typical whitening sensitivity, which can sometimes be very acute.

Potassium nitrate, often recommended for treatment of sensitivity, does not plug tubules. In some patients it partially reduces the ability of the pulpal nerves to fire. This affect does not eliminate the pulpal inflammation, and only partially masks the symptoms. Some claim ACP will block dentinal tubules, however ACP has been primarily developed and studied in relation to repairing highly inorganic enamel, not the more organic dentin. Even if ACP were to cause mineral formation within dentin, which is much more organic in nature than enamel, it would do so by slowly “growing” tooth structure instead of actively and rapidly “plugging” tubules.

KöR desensitizers instantly plug and re-plug the orifices of the dentinal tubules to “prevent” pulpal inflammation and sensitivity rather than simply treat the symptoms. The first desensitizer, applied at chairside, plugs tubules. The second desensitizer, applied by the patient daily at home, also instantly plugs tubules..

Open dentinal tubules closed by KöR desensitizers:

Sensitivity

What makes the KöR Whitening System permanent?

Unlike other whitening methods the KöR System is able to fully rejuvenate and restore teeth to their youthful ability to absorb bleaching factors. This is achieved by allowing pigments and stain molecules to be fully flooded by bleaching factors, thus thoroughly breaking down large stain molecules to ultra-small colorless and white particles.

The resultant conditioning and permeability of the teeth to bleaching factors facilitates easy, effective periodic at-home maintenance by patients, keeping the level of whiteness absolutely permanent, while still allowing patients to consume coffee, tea, red wine, etc.