Miss Li, 28, plans to take wedding photos with her fiance in two weeks. She feels like a yellow-faced woman and is worried that the photos will not look good. So she went to the drugstore to buy a household tooth whitening product, but it caused holes and ulcers in her gums, so she went to the dental clinic for treatment. Dentists remind that most tooth whitening products on the market use derivatives commonly known as hydrogen peroxide, so you should be very careful if you use them in DIY at home, especially dentures of the same size are not suitable for everyone. Once the whitening agent contacts the gums for a long time, it may seriously lead to gingival ulceration and atrophy. Dr. Shen Xinyi from the dentist's office said that many female friends don't have the habit of maintaining their oral cavity at ordinary times, but they pursue quick white teeth. Even if you brush your teeth hard, you can't improve your yellow teeth, so you are keen on online shopping for household tooth whitening products. However, most whitening products on the market do not provide customized dentures. If you use false teeth that are not suitable for your own size, your teeth may not have enough time to contact with drugs, which will affect the whitening effect. In addition, improper denture can't keep the medicine away from the gums. If the gums are exposed to drugs for a long time, it will cause inflammation or ulcers. Remind people who like to buy such household whitening products to read the instructions carefully and use them carefully before use. Dr. Shen Xinyi said that there are many different bacteria on the surface of teeth, which will secrete sticky substances. Pigment substances such as tea stains, coffee, cigarette stains or red wine can be easily adsorbed on these sticky substances, which will gradually yellow the teeth. If the oral cleaning is not accurate, tartar will accumulate, which is also a factor leading to yellowing of teeth. If you want to whiten your teeth, the most important thing is to clean and maintain your teeth first, so as not to let them have cavities. Patients with severe gingivitis or periodontal disease must be treated before using tooth whitening products. Dr. Shen Xinyi suggested that you should clean your teeth before whitening, get into the habit of brushing your teeth three minutes after meals, and use dental floss and mouthwash as an aid. More importantly, the protection of enamel can be strengthened at ordinary times. Recently, some manufacturers have introduced oral care products of tooth makeup water. Using portable spray at any time can reduce the adhesion of dental plaque, moisten gums and form a moisturizing film. At the same time, it can strengthen the calcium supplement effect of teeth and improve the protection of teeth. If you like this article, please like it and share it with your friends! Subscribe to the health Aloha audio-visual channel, read health knowledge more easily, and pay attention to your health every day! Line @ ID: @:/supply/article/21972/DIY Improper tooth whitening may harm gums Keywords: Shen Xinyi, dentistry, tooth whitening, tooth lotion, oral care products, gums.