Generally speaking, tooth whitening training can be completed in a few months or so, because this technology is not difficult to learn!

Some people are fast, but this is a minority. It is not recommended that you take a crash course. The knowledge of tooth coating and whitening taught in these crash courses is relatively shallow, and nothing really useful can be learned.

If you want to learn really useful knowledge, a better way is to enter a professional tooth coating and whitening training institution and spend time studying. Only in this way can we learn the real skills! Don't be afraid of the long training time of tooth whitening, sharpening the knife and cutting wood by mistake!