The dental treatment is changing day by day, and the much concern is to minimize the damage of dental tissue, less grinding, minimally invasive and comfortable. Procedures of minimally invasive treatment: 1. Laser-assisted early diagnosis: early diagnosis of caries and minimally invasive treatment are closely related. It is generally believed that: only early detection of any disease can reduce the damage. So regular examination is necessary, and laser assisted can diagnose caries early by light. 2. Remineralization treatment: Through food and water (remineralization), while reducing the intake of acid and sugar, it is the bacteria of dental plaque and sugar that form acidification (demineralization) in the mouth and destroy the tooth tissue. Doctor can also help remineralization by fluoride treatment. 3.Sandblasting decay: sandblasting decay is the more cutting-edge treatment of shallow caries, it is through special treatment instruments, removing decay and dental sealant sealing and filling, sandblasting decay is similar to blasting at the microscopic level of tooth surface, removing caries with small particles, most cases do not need anesthesia. 4.Teeth grinding pad: grinding teeth (bruxism) will exist in most people at one time or another, but it is often not serious and does not affect health problems. Night grinding may be problematic and may cause dental damage. The dental pads are placed between the upper and lower teeth to act as a barrier and protect the teeth from direct wear. 5. Inlays and high inlays: Tooth damage can be repaired with inlays and high inlays. Crowns are usually used only to restore severe damage, as crown restorations involve the removal of a significant amount of tooth tissue. A better conservative treatment is to cut as little tissue as possible, and inlays can be used for single cusp defects and high inlays for multiple cusp defects. 6, minimally invasive extraction: tooth damage must damage the alveolar bone and bone tissue, minimally invasive extraction is to minimize the damage to the alveolar bone and bone tissue, which is conducive to the healing of the alveolar bone and bone tissue. The preservation of alveolar bone and bone tissue after tooth extraction is essential for the future restoration of dental implants.