Periodontitis is an inflammation of the periodontal supporting tissue, often caused by not brushing or rinsing promptly after eating. Food residue accumulates around the gums, which over time can cause bleeding gums or bleeding during brushing. Severe cases may further develop into periodontal pockets, where dental calculus appears, potentially leading to loose teeth, tooth loss, or even absorption of the alveolar bone. Therefore, the basic treatment for periodontitis involves controlling plaque and eliminating inflammation. This can be achieved through ultrasonic cleaning, which is essentially teeth cleaning to remove dental calculus, followed by rinsing and medicating around the gums to improve their condition. In severe cases, periodontal scaling may be necessary. Thus, treatment of periodontitis is divided into basic treatment and maintenance treatment, with maintenance following the basic treatment phase.