When it comes to teeth whitening, sensitivity is one of the most common side effects. But fortunately, KöR Whitening has gone to great lengths to solve this problem. In this article, we will explain the modern approach that we use to combat whitening sensitivity.


Unsuccessful Desensitizing Methods

Many different products and techniques have been tried to reduce whitening sensitivity, but the results have not been consistent. However, it is worth taking a quick look at some of the unsuccessful methods.

1. Modifying Bleaching Gels – By altering whitening gels, manufacturers tried to reduce sensitivity. Unfortunately, though the gels were not very sensitizing, they also did not get teeth very white.

2. Flourides – Flourides have been used to try and occlude the dentinal tubules, but the process proved too slow and ineffective. When we need desensitizing with whitening, we need it NOW!

3. ACP – Amorphous Calcium Peroxide helped remineralize enamel, but not the dentin and the results were inconclusive.

4. Potassium Nitrate – Potassium nitrate will not occlude dentinal tubules and it also does not reduce the tubular flow. It has been unpredictable in application, with some patients experiencing reduced sensitivity while others were not affected in any measurable way.

5. Adding Desensitizing Agents to Whitening Gels – Various agents have been mixed into whitening gels to reduce sensitivity. The process of whitening relies on an aggressive oxygenation and results in the outward flow of dentinal tubular fluid. The process is just not conducive to the effect of desensitizers of any type when the oxygenation process is going on during whitening.

Current Desensitizing Methods

Generally speaking, there are two categories of desensitizing approaches, which include the following:

1. Occlusion of Dentinal Tubules – The goal is to plug dentinal tubules, which prevents movement of intratubular fluid and reduces sensitivity. However, to be effective for whitening, the tubule-plugging process must be immediate.

2. Neuronal Suppression – A chemical effect is applied on pulpal neurons. This reduces the ability of those neurons to repolarize after firing, thus masking the feeling of sensitivity.

“KöR Whitening is leading the way to better teeth whitening with minimal sensitivity.”

KöR’s Solutions to Whitening Sensitivity

KöR Whitening is leading the way to better teeth whitening with minimal sensitivity. Here are some of the methods utilized by KöR Whitening for reduction of whitening sensitivity:

1. Lower Osmolality of the Whitening Gel – Whitening gels with the lowest possible osmolality will reduce the osmotic gradient between the whitening gel and tubular fluid – therefore less “pull” on the dentinal tubular fluid. KöR gels have as little as 1/11th the osmolality of other whitening gels.

2. Immediate, Aggressive Occlusion of Dentinal Tubules – Before and after treatment respectively, these steps are taken to reinforce and replace smear plugs.

3. Immediate Enamel Aberration Occlusion – Instantly plugging acquired aberrations (such as cracks and craze lines) in enamel, as well as developmental aberrations (such as enamel lamellae) before and after whitening greatly reduces zinger type sensitivity.

4. Desensitizing Agents – Rather than mixing desensitizers into the whitening gel, it is far more effective to apply before and after treatment.

5. No Lights or Lasers – Whitening lights and lasers have been proven to be ineffective, while significantly increasing sensitivity, so there is no need to consider using them.

6. Use of Buffering Agents – Peroxides throw off hydrogen ions during breakdown (Hydrogen ions are acid – pH refers to potential of Hydrogen), resulting in a lowering of pH.   Use of buffering agents in the whitening gel prevents the peroxides from becoming rapidly acidic, reducing the loss of smear plugs during whitening.

7. Refrigeration – KöR Whitening came up with a way to keep whitening gels properly refrigerated from the moment it is manufactured all the way to its cold delivery at the dental office. This leads to better whitening and less sensitivity.

To understand more of the science behind teeth whitening sensitivity and the methods used by KöR Whitening to reduce and prevent whitening sensitivity, contact us today.

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