Dental scaling can clean tartar, but if not done properly, it can lead to bleeding gums and significant pain. Dental scaling is the use of subgingival scrapers or ultrasonic instruments to remove subgingival calculus from deeper periodontal pockets. Dental scaling removes localized tartar and whitens teeth. At the same time, it can also prevent and eliminate inflammation of the gums, which is beneficial to the health of the gums. It should be noted that the dental scaling, if not properly operated, may stimulate the local soft tissue, resulting in bleeding gums bleeding, but also produce severe pain. In severe cases, it can also lead to localized loss of bone and dentin, making the teeth more sensitive to hot and cold stimuli. With the development of medical level now, dental scaling generally does not cause greater harm to the teeth and gums, it is recommended that patients choose regular hospitals to carry out the relevant treatment to reduce the risk. Daily attention to personal hygiene, keep your mouth clean, do morning and evening brushing, more mouth rinsing after meals.