A tooth whitening session sounds very innocuous, and you would not think that any kind of medical prerequisites exist for it, and yet you may not be eligible for one. This is because the substances used to clear away the stains and discolouration from the teeth can harm the soft tissues in the mouth if applied incorrectly, or on unhealthy teeth. This is why the tooth whitening material is always applied in trays or strips that only go on to the teeth and keeps away from every other structure in the mouth.
When you have to put off tooth whitening session anyway
This all means you cannot have an open abscess, a cavity on a tooth or a fresh and unhealed injury in the mouth, nor can the corrosive acidic materials get into or near an extraction site or surgical site in the mouth. If you have a cavity, are in need of a root canal treatment, have canker sores, abscesses or have any other dental problems that leave you at risk, then you must get those cleared up before you go on to get tooth whitening treatment.
Preliminary treatments
If there are any cavities, then you need to get a filling before getting tooth whitening treatment. The acidic material can reach the dental nerve otherwise. If you have periodontitis, and have sores or swollen gums, you may need to go on a course of antibiotics to nurse your gums back to health, and then get tooth whitening treatment afterwards. If you have any abscess or injury, you need to wait until the blood clot that will appear on it is completely reabsorbed by your body, and the area has healed over before you can start your whitening session. If you have any white spot lesions or other bits of missing enamel, then you need to remineralise your teeth before engaging in this kind of treatment. There are no conditions that make it impossible to get your teeth whitened, but if your enamel is already weak, you may not want to erode a tiny layer off of it.
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