Gingivitis is relatively common in daily life, mainly due to poor oral hygiene, dental calculus, plaque, food residues, and soft tartar, which irritate the gums, causing redness, swelling, and bleeding of the gums. If severe, it can lead to gum recession, absorption of the alveolar bone, and loosening or loss of teeth. For severe gingivitis, initial treatment involves supragingival cleaning followed by subgingival scaling and root planing. If individual teeth continue to experience recurring swelling and pain after scaling, surgical treatment such as gingival flap surgery may be performed. This involves cutting open the gums to thoroughly remove calculus, plaque, food residues, and soft tartar, which can subsequently improve tooth mobility. In cases where teeth cannot be preserved and need to be extracted, severe gingivitis can also lead to the formation of gum abscesses. In such cases, oral cephalexin can be taken, and using a compound chlorhexidine mouthwash can help alleviate the condition and reduce pain.