"3D printing teeth" cost reduced by 2/3
Release date: 2013-09-05
The cost of a patient's tooth is from 12,000 to 20,000 yuan. The cost of traditional technology includes three parts: surgery cost, implant cost, and false crown cost. Among them, only the crown part, for example, the most popular porcelain teeth, the cost is about 2,000 to 3,000 yuan; the nickel-chromium (ie stainless steel) crown is also more than 1,000 yuan. If you use 3D printing technology, the total cost is reduced to about 5,000 yuan. Among them, the surgery fee has become a medical treatment fee, which is greatly reduced, and the cost of printing a tooth plus material costs is only about 50 yuan.
After doing a CT and going home for two days, the dentist will come up with an alloy "3D printing tooth" that is exactly the same as your original tooth. Without anesthesia and surgery, the teeth will be finished in the gums. The technology wave of 3D printing has entered stomatology and may replace the now complex and expensive implant technology in the near future. Dr. Tang Zhihui, chief physician of Peking University Stomatological Hospital, has applied bio 3D printing technology to oral restoration such as replanting teeth and has gone to the animal experiment stage. It is expected to be approved for human body after 2 to 3 years.
Time compares traditional fillings: It is necessary to wait for the traditional dental implant technology used for about half a year. After the patient has extracted the teeth, wait for 3 months. After the alveolar bone is healed, implant a vertebral columnar alloy on the alveolar bone. To replace the root of the original tooth, wait another 2 to 3 months to attach the false crown to the screw. The whole process took about half a year, during which the patient had to come to the hospital three or four times.
3D printing teeth: The fastest time is 3 to 4 hours. After the patient has extracted the teeth, he only needs to do a "vertebral beam CT". Tang Zhihui can obtain the three-dimensional root data, and then use the computer software to design and transfer the data to the professional factory of bioprinting. The 3D printer can print the same dentures as real teeth with titanium or zirconia. Printing a titanium alloy tooth takes half a day to a day, while zirconia teeth take only 3 to 4 hours. No need for anesthesia and surgery, the dentist puts the dentures into the patient's gums and the teeth are finished, and the left and right teeth are tightly stitched.
Technology compares traditional filling: technical threshold Gao Tangzhihui told reporters that traditional dental implant technology is a complicated operation, requiring an operating room with a sterile environment, and more needs a dentist to master sophisticated technology and accumulate certain experience, otherwise once the artificial crown and There is a gap between the roots of the alloy, and the bacteria will easily enter the human body. If the denture is not tightly coupled with the left and right teeth, the patient will be uncomfortable. It is the technical requirements for the dentist's technology and repair materials are very high, some small cities in China can not even do dental implants, even Beijing is not the dental department of every hospital can do.
3D printing teeth: simple training can be mastered and 3D printed dentures have roots. It is a seamless whole. It does not need to fill the gap between the bone and the implant with bone material. It can be implanted in the general dental office. The dentist can master this technique with a simple training.
The cost is more than the traditional filling: the cost of a patient with a cost of 12,000 to 20,000 yuan ranges from 12,000 to 20,000 yuan. The cost of traditional technology includes three parts: surgery cost, implant cost, and false crown cost. Among them, only the crown part, taking the most popular porcelain teeth as an example, requires 3 grams of gold, the cost is about 2,000 to 3,000 yuan; the nickel-chromium (ie stainless steel) crown is also more than 1,000 yuan.
3D printing teeth: The total cost is reduced to about 5,000 yuan. If you use 3D printing technology, the total cost is reduced to about 5,000 yuan. Among them, the surgery fee has become a medical treatment fee, which is greatly reduced, and the cost of printing a tooth plus material costs is only about 50 yuan.
Progress 3 Beagle dogs have been fitted with "printing teeth"
Tang Zhihui's research is currently in the animal experiment stage of preclinical research. He took several students and put three 3D printed dentures on the Beagle. At present, all three dogs are well-adapted and have no adverse reactions. According to the regulations of the State Food Administration, implants used in humans are subject to animal experiments to prove their safety and effectiveness, and manufacturers of implants are also required to pass inspections. If everything goes well, 3D printed dentures are expected to be approved for use in the human body after 2 to 3 years. “But now someone has strongly urged me to give them 3D printing teeth,†Tang Zhihui said. “For example, people who work with me in 3D printing, they believe in their materials and technology.â€
The "components" of 3D printing have been implanted in the human body at home and abroad. Liu Zhongjun, director of the Department of Orthopaedics of the Third Hospital of Beijing Medical University, has entered the clinical observation stage, implanting 3D printed "skeleton" for nearly 40 patients, using titanium alloy materials.
The widespread promotion of new technologies will take time. In addition to the national safety regulations, the development of 3D printing equipment is also an important part. Tang Zhihui, they are not using ordinary tens of thousands of 3D printers, but high-end metal printers worth millions of dollars, which can be used in the national defense industry, and cannot be produced in China.
Source: Kexun
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