Implant dentures have gradually become the preferred method of oral restoration for patients with dentition defects and missing dentition due to the advantages of ideal retention support, aesthetics and comfort, and no harm to adjacent teeth. However, the angle and position of implant implantation in traditional dental implant surgery often need to be determined according to the local bone tissue after the mucoperiosteal flap is opened during the operation. Or pathological absorption and other conditions, the implant placement position and the preoperative expected position will be deviated, and once the implant is implanted, its position is difficult to fine-tune and correct, which brings many surgical and repair complications. With the continuous development of 3D printing in various industries, 3D printing has been applied to denture printing, orthodontic production, rehearsal surgery model production, surgical guide production and other fields in dental medicine, which will greatly improve the accuracy and efficiency of dental medicine.

Before making the dental 3D printed surgical guide, the original DICOM data of CBCT can be imported through special software, which can analyze the anatomical structure of the implant area before the operation. Through the three-dimensional reconstruction of CT information, the surgeon can fully understand the bone mass and important tissue locations of the patient's implantation area, measure the distance from the crest to the maxillary sinus and inferior alveolar neural tube and other important anatomical structures, and then design the surgical plan according to the specific situation Determine the type of flap and whether to perform bone augmentation surgery at the same time, compare the pros and cons of several surgical methods, in order to achieve the best repair effect; then perform the simulated surgery, place the implants of the appropriate type and size, and observe the implantation Position and orientation, upper restoration space and its relationship with the opposite and adjacent teeth.

Through such detailed and personalized pre-operative planning, the dental resin 3D printer facilitates good doctor-patient communication, and can visually show the surgeon’s ideas to the patient and his family members to obtain the greatest understanding and cooperation, while also simplifying the procedure and shortening the procedure. The operation time is reduced, the technique dependence and the operation risk during the operation are reduced to a certain extent, and the success rate of implantation is improved. In addition, through CBCT data analysis, the bone density of the operation area can be intuitively understood. When the bone density is too low, the initial stability of the implant will be slightly lower, and when the bone density is too high, it will have a certain impact on implant preparation. At the same time, the design software can also determine the upper and lower occlusal relationship and the distribution of occlusal force by adjusting the upper restoration structure, in order to obtain the best restoration function and aesthetic effect. The implant guide designed and printed according to the above parameters is mainly suitable for those who need to avoid important nerves and blood vessels, those who require the same implant angle for multiple implants, those who do not accept bone grafting because of insufficient bone, and those who need immediate restoration. , Increasing the scope of indications for implant dentures.