With the continuous development of medical equipment technology and the increase of patients’ demand for personalized and comfortable dental treatment, the concept and technology of minimally invasive treatment has been widely carried out in the field of oral clinical medicine. As a result, how to achieve minimally invasive and comfortable tooth extraction and alveolar surgery has been the main direction for oral and maxillofacial surgeons to work on. In this issue, we will introduce how to minimize the trauma and improve the comfort of your dental surgical treatment by focusing on both minimally invasive and comfortable aspects. Did you know? Tooth extractions and jaw surgery are less invasive with an ultrasonic bone knife! Minimally invasive alveolar surgery follows a minimally invasive philosophy and uses specialized minimally invasive surgical instruments to make the procedure as less invasive as possible. For example, the most commonly used minimally invasive extraction technique is to determine the anatomical tissues around the mouth after local anesthesia and oral X-ray or CT examination, and under the guidance of the minimally invasive concept, use minimally invasive instruments such as ultrasonic bone knife minimally invasive dental jaws, use a special high-speed turbine to separate the crown of the tooth, and then use minimally invasive dental jaws to insert between the periodontium and the root of the tooth to separate it and take out the tooth without damaging the tissues around the tooth The entire extraction process minimizes the damage to the periodontal tissues and heals faster, minimizing the risk of complications such as dry socket, extraction wound infection, nerve damage, jaw bone fracture, adjacent soft tissue damage, and gum damage. The concept of minimally invasive needs minimally invasive equipment to guarantee. In the past, the friction of turbine in the process of cutting teeth and alveolar bone will generate a lot of heat and tissue debris due to high speed rotation (at least 300,000 rpm), which will burn and contaminate the trauma, and at the same time, it will cause large trauma during the cutting process due to its coarse diameter, so there will still be more obvious trauma reaction after clinical application of its extraction of complex teeth or alveolar bone surgery The emergence of ultrasonic bone knife eliminates these two disadvantages of high-speed turbines. It uses high-intensity focused ultrasound technology to convert electrical energy into mechanical energy through a transducer, and by high-frequency ultrasound shock, it causes water vaporization in the tissue cells contacted and breaks the protein hydrogen bonds, thus completely destroying the bone tissue to be cut during surgery. In use, the temperature of the ultrasonic knife tip is below 38°C and the surrounding propagation distance is less than 200 microns. Since this high-intensity focused ultrasound only has a destructive effect on bone tissue of specific hardness, it not only does not damage to blood vessels and nerve tissues, but also can play a hemostatic role at the surgical wound, further reducing the incision of minimally invasive surgery and greatly improving the accuracy, reliability and safety of the surgery. Did you know? Outpatient tooth extraction can be painless throughout? Pain is the main cause of fear, but it is not only limited to pain, the pain during the treatment is more than the toothache itself, so it is important to have analgesia throughout the treatment. It has been reported that the incidence of anxiety and fear in alveolar surgery is over 60%, and the fear of pain is only one of the reasons, but the nameless fear is also an important reason. Therefore, sedation is also important. The characteristics of sedation: consciousness exists and can obey various orders; small changes in vital signs after administration; almost no analgesic effect, but can enhance the effect of local anesthetics; relatively easy to operate: inhalation, oral, intravenous medication. Sedative drugs given through the intravenous, fast onset, smooth maintenance, the effect is indeed; moderate to severe sedation, the need to have the cooperation of anesthesiologists. The advantages are: (1) intravenous anesthesia administration is fast-acting, smoothly maintained, rapid recovery, and definite effect. The most prominent feature of general anesthesia compared to transaerophilic anesthesia is that it does not require transaerophilic administration, is comfortable and safe, and does not require hospitalization for observation, which not only ensures surgical safety but also saves patients’ time. (2) There are more kinds of intravenous drugs, and personalized anesthesia plan can be made according to the actual situation of the patient and the doctor’s needs, ensuring safe and comfortable surgery and quicker anesthesia awakening. (3) The anesthesiologist can choose one or several intravenous anesthetics according to the characteristics of each department of dental treatment, and carry out intravenous anesthesia through different drug delivery methods, so that both doctors and patients can cooperate as easily as possible during the whole treatment process. Simply put, the treatment is over as soon as you wake up, without any painful memories. Since 2020, hundreds of cases of surgical treatment under sedation and analgesia have been carried out with very satisfactory treatment results and treatment experience. We believe that the dental fear of tooth extraction will be overcome.