The led teeth whitening via dental led whitening machine is becoming more and more popular nowadays. But are all teeth whitening result is great? No, it is not! Led teeth whitening also has some negatives. Let’s have a look:
No whitening method is permanentDue to the nature of tooth yellowing, no whitening method is permanent. Different people’s teeth will turn yellow at different speeds, but lifestyle factors and genetic dispositions will speed up the process. The natural thinning of the enamel and the pigmentation of the internal dentin, no matter which whitening method you choose, your teeth will continue to turn yellow. It may take weeks, months or years.
Should not be used during pregnancyIf you are pregnant, preparing to get pregnant or nursing a baby, it is best to delay teeth whitening. Little research has been done on teeth whitening during pregnancy to assess the safety. Therefore, the best option is to wait until your baby has finished breastfeeding.
Do not over-treat the teethThe severity of the yellowing of the teeth can affect the possible results. Very yellow teeth may require more treatments; however, it is important not to over-treat the teeth. Try to objectively consider the natural color of your teeth and be realistic about the color your aim to achieve.
Can’t be over useNo tooth whitening method should be performed frequently or for longer than the instructions. This is because if left or prematurely repeated, the acid in the whitener can damage the enamel, which can lead to sensitivity and other future problems. Strictly follow the instructions to prevent damage.
No suitable for everyoneTeeth whitening kits should not be used on children’s teeth. If you are concerned about the color of your child’s teeth, please consult your dentist.
Choosing proper teeth whitening machine
The perfect teeth whitening experience combines effective teeth whitening materials along with an excellent teeth whitening lamp. There are a variety of teeth whitening machines (lamps) and materials on sale at Dentalsalemall.com. Buying teeth whitening machine there helps you save you money and time, improving your whitening efficiency at the same time.

Source:
https://tianqiong2019.blogspot.com/2019/05/led-teeth-whitening-result-is-not.html