Alveolar bone atrophy can be restored by removing bad restorations, ultrasonic cleaning, and keeping oral hygiene clean. 1. Remove bad restorations: When bad restorations are present, food impaction will occur, affecting the normal periodontal activities. The restoration can be surgically removed, inlays can be made or full crowns can be restored. 2. Ultrasonic cleaning: when the alveolar bone is atrophied, it is necessary to use ultrasonic waves to remove the stones on the surface of the teeth, and contact the pressure of stones on the alveolar bone. 3. Maintain oral hygiene and cleanliness: alveolar bone atrophy may be complicated by bacterial infection and plaque. Patients need to strengthen oral hygiene, brush teeth after meals and before bedtime to keep the mouth clean. Patients with alveolar bone atrophy should go to the hospital for treatment in time to avoid delaying the condition or adversely affecting the subsequent therapeutic effect.