It usually takes one to two weeks for teeth to regain their firmness with subgingival scraping. Subgingival scraping may cause damage to the tissues around the gums, causing temporary loosening of the teeth, usually one week after the end of treatment will be better. After the operation, pay attention to oral care, it is recommended to maintain oral hygiene during the periodontal treatment, you can use mouthwash to rinse your mouth, diet should be reduced hot and cold stimulation and eat spicy and stimulating food, otherwise it may have an impact on the recovery of the gums. If the patient in the subgingival scraping after the gum swelling and pain, for hot and cold stimuli is unusually sensitive, resulting in the inability to eat or speak to cause difficulties and other symptoms, may be due to the emergence of infection, the need for early medical care, a clear diagnosis, targeted treatment.