1, laser tooth whitening

Because there is high heat in the irradiation process, teeth will be dehydrated, which will also have a certain impact on sensitive gums. More importantly, the teeth after laser whitening will appear unnatural white due to dehydration.

2, cold light whitening teeth

The high-heat cold light produced without laser irradiation will not stimulate sensitive teeth, and the whitening teeth will present a natural crystal white color. But as a new technology, with these advantages, cold light tooth whitening will be more expensive than traditional laser tooth whitening, and the validity period will be about two years.