The whitening strips and products with high concentrations of HP caused more users to complain from toothsensitivity.
美白条和含有高hp的美白产品造成较多使用者抱怨牙齿敏感。
2
People should be aware of common side effects such as toothsensitivity and irritation to the gums and note that long-term data on the use of such products are not yet available.