Missing teeth not only reduce people’s ability to enjoy food, but also affect their appearance and speech. Due to the differences in ethnicity, diet, oral hygiene and other lifestyle habits, tooth loss is much more serious in China than in Western countries. Fortunately, current dental implant technology allows humans to obtain a third set of teeth. Dental implant technology is called the fourth revolution in dentistry since 1840, the first three being the application of nitrous oxide anesthetics, the fluoridation of drinking water to prevent caries, and the discovery of the caries-causing effect of plaque biofilm. The dental implant technology, which started in the late 1960s, avoids the defects of traditional restorations such as instability, wear of adjacent teeth, and weakness of chewing, etc. The implants made of medical grade titanium can be directly implanted into the alveolar bone and can be firmly integrated with the alveolar bone cells in just a few weeks. It is clinically proven that it can completely replace single, multiple missing teeth or even the whole missing teeth, and has become the best choice after tooth loss. According to the report, there are more than 500 dentists specializing in oral implants in major cities in China, and the number of dental implants has been increasing year by year, reaching 50,000 to 60,000 in 2007, with an average annual growth rate of over 20%, and a 10-year success rate of 93% to 95%, which is no different from foreign countries.