Please open your mouth wide and tilt your head a little more to the left... "This is Zhang Kejia, a graduate student in stomatology at Nanjing Medical University, who has been admitted to clinical practice for the first time, but she is not nervous at all. With the sharp sound of the motor turning, Zhang Kejia began to polish the patient's decayed teeth. Every step of her operation is fully captured by the high-definition camera under the spotlight, and the data stream is fed into the "AI brain" in the background along the network cable for storage and analysis. Relevant prompt information is also displayed in real-time on the screen next to the dental chair. In early September, the reporter walked into the outpatient department of the Orthodontics Department of the Affiliated Stomatological Hospital of Nanjing Medical University. Professor Yan Bin, the dean of the hospital, introduced to the reporter the first intelligent dental chair oral cloud diagnosis and treatment platform independently developed by our hospital in China. It can achieve functions such as collecting and generating three-dimensional models of patients' oral cavity, intelligent assisted diagnosis of oral diseases, and intelligent recommendation of treatment plans. In conjunction with other artificial intelligence teaching devices, it can jointly create an "AI mentor" that covers the entire process of clinical teaching in the field of dentistry. Going to the hospital to see a dentist with multiple teaching advantages is something many people are afraid of. In addition to the fear of pain, many people also feel nervous about not being able to fully grasp relevant information during the diagnosis and treatment process. Yan Bin told reporters that in the past, patient disputes caused by insufficient information technology were not uncommon. As a mentor, he is also unable to supervise in real-time that every student's operations comply with relevant standards. The patient's mouth can only be opened that wide, and it is impossible for others to see the oral operation up close, "Yan Bin said. To this end, the hospital has created a new intelligent dental chair oral cloud diagnosis and treatment platform that runs through the entire process of clinical teaching, achieving a leap from digitization to intelligence. This not only breaks the information barrier between doctors and patients, but also makes oral treatment more standardized and intelligent. More importantly, it greatly enriches our clinical teaching methods, "Yan Bin said. In the past, during internships for dental students, mentors could not teach hand in hand, and students could not learn everything in one move. Students who entered clinical practice for the first time were very nervous. Now, the hospital utilizes the comprehensive perception, reliable transmission, and intelligent processing advantages of the Internet and Internet of Things technology, integrating cloud platforms, 5G networks, artificial intelligence, and other technological means to use dental chairs as accessible intelligent terminals, enabling diagnostic and treatment equipment to have functions such as intelligent perception, intelligent transmission, intelligent decision-making, and intelligent control, as well as advantages such as automated control and monitoring, data collection and sharing, remote medicine and teaching. Yan Bin said that with the help of auxiliary facilities such as pressure sensing and laser scanning, their platform can also build a three-dimensional model of the patient's oral cavity, present a real-life scene inside the mouth, and allow data to "speak up", achieving AI preview, intelligent navigation, and postoperative tracking supported by big data. The reporter walked into the Digital Experimental Teaching Center of Stomatology at the Wutai Campus of Nanjing Medical University and saw more than 160 simulated head models sitting neatly in two classrooms, creating a solemn atmosphere. Yan Bin told reporters that this is currently the largest digital experimental teaching center for oral medicine in China. At the forefront of the experimental teaching center, a huge electronic touch screen has replaced the traditional blackboard, and the three foot podium has also become a digital teaching console. Each student seat is equipped with