Professional vs OTC Options
Teeth whitening can be done at home or by a dental professional. However, if you don’t have the know-how to experiment with over-the-counter whitening treatments or want to go two shades lighter at a minimum, an in-office treatment is going to give you the most effective results.
Teeth whitening kits for at-home use are not as safe as when the procedure is monitored, supervised, and performed by a dentist. Over the counter teeth whitening treatments carry a higher level of risk, with damage to the gums from harsh chemicals being a primary concern.
Additionally, some cases of tooth discolouration are caused by underlying conditions that require dental therapy, so you should always consult your dentist before performing any at-home treatments or deciding on a treatment option.