attentions!
1.It is recommended to check your teeth condition first before use.If your teeth have root canal exposure problems, the gel may cause tooth soreness or damage.You should treat the root canal first, or use desensitizing glue.
2.High-concentration whitening gel has a certain irritation to the gums, which varies from person to person.If you feel sore teeth, please stop using them.Generally, the symptoms will disappear within 24 hours.
3.For people with sensitive teeth, it is recommended to use the desensitizing gel after using whitening gel, which can reduce tooth soreness.
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