| Riichi Ouchida | Last modified date：2024.04.09 |
Lecturer /
Division of Fixed Prosthodontics Faculty of Dental Science Kyushu University
Oral Rehabilitation
Kyushu University Hospital
Oral Rehabilitation
Kyushu University Hospital
Homepage
https://kyushu-u.elsevierpure.com/en/persons/riichi-ouchida
Reseacher Profiling Tool Kyushu University Pure
Academic Degree
Ph.D.(kyushu University,Japan)
Country of degree conferring institution (Overseas)
No
Field of Specialization
Prosthodontics
Total Priod of education and research career in the foreign country
00years00months
Outline Activities
Dental implant navigation without intraoperative registration
Purpose: Safety must be considered for anatomical organs when performing implant bed preparation in dental implant surgery. That is, avoidance of perforation of the maxillary sinus or incisor canal, mandibular nerve injury, extralingual perforation, etc. Regarding the position of the tip of the drill, which cannot be confirmed by direct vision, the operator has relied on the preoperative design and the feeling transmitted to the hand. In recent years, surgical guides made by CT computer simulation have come to be used, but they play a sufficient role if they have sufficient bone width and form homogeneous cortical and cancellous bone perpendicular to the cortical bone. However, in actual clinical practice, not only old tooth defects with a wide bone width but also irregular cortical bone with a narrow bone width and bed formation after tooth extraction or during the healing process are unavoidable. If a good implant position cannot be obtained without forming such a mixture of hard and soft bone, the stability of the surgical guide, which forms a single direction of the drill axis, remains a problem, and a drill system without internal water injection has a problem. You run the risk of overheating. Bone-level surgical guides, which are advantageous in terms of stability, increase the risk of surgical invasiveness due to open flaps, longer operation time, and postoperative swelling and pain in exchange for improved guide stability and cooling efficiency during drilling. Based on the above background, it is necessary to improve the basic technique of implant bed formation and to develop flexible adaptation techniques. In this study, we developed a navigation system for dental implants as a surgical support system that compensates for positional fluctuations in the surgical site by using references and markers based on tooth fixation, and linearly reproduces the positional relationship between anatomical organs and drills on preoperative CT images during surgery. developed. In this way, an infrared navigation system is used during dental implant surgery to perform minimally invasive and safe treatment. It is also used to contribute to minimally invasive and safe treatment.So far, we have been promoting the development of a dental implant surgery support robot system in collaboration with private companies, industry, academia, and government. ,Kyushu University's venture company (Safe Approach Medical Co., Ltd.) was launched in March 2017. After that, we made a prototype, improved both hardware and software, and started commercialization in June 2020. A prototype was completed.At the same time, QMS was constructed for PMDA Class II certification, and in April 2021, electrical tests, etc. were cleared during the third-party certification period, and medical device manufacturing and sales began in October 2021. The dental implant surgery navigation system DENTVISION acquired PMDA Class II certification in February 2022 and has been on sale since April 2022.
Purpose: Safety must be considered for anatomical organs when performing implant bed preparation in dental implant surgery. That is, avoidance of perforation of the maxillary sinus or incisor canal, mandibular nerve injury, extralingual perforation, etc. Regarding the position of the tip of the drill, which cannot be confirmed by direct vision, the operator has relied on the preoperative design and the feeling transmitted to the hand. In recent years, surgical guides made by CT computer simulation have come to be used, but they play a sufficient role if they have sufficient bone width and form homogeneous cortical and cancellous bone perpendicular to the cortical bone. However, in actual clinical practice, not only old tooth defects with a wide bone width but also irregular cortical bone with a narrow bone width and bed formation after tooth extraction or during the healing process are unavoidable. If a good implant position cannot be obtained without forming such a mixture of hard and soft bone, the stability of the surgical guide, which forms a single direction of the drill axis, remains a problem, and a drill system without internal water injection has a problem. You run the risk of overheating. Bone-level surgical guides, which are advantageous in terms of stability, increase the risk of surgical invasiveness due to open flaps, longer operation time, and postoperative swelling and pain in exchange for improved guide stability and cooling efficiency during drilling. Based on the above background, it is necessary to improve the basic technique of implant bed formation and to develop flexible adaptation techniques. In this study, we developed a navigation system for dental implants as a surgical support system that compensates for positional fluctuations in the surgical site by using references and markers based on tooth fixation, and linearly reproduces the positional relationship between anatomical organs and drills on preoperative CT images during surgery. developed. In this way, an infrared navigation system is used during dental implant surgery to perform minimally invasive and safe treatment. It is also used to contribute to minimally invasive and safe treatment.So far, we have been promoting the development of a dental implant surgery support robot system in collaboration with private companies, industry, academia, and government. ,Kyushu University's venture company (Safe Approach Medical Co., Ltd.) was launched in March 2017. After that, we made a prototype, improved both hardware and software, and started commercialization in June 2020. A prototype was completed.At the same time, QMS was constructed for PMDA Class II certification, and in April 2021, electrical tests, etc. were cleared during the third-party certification period, and medical device manufacturing and sales began in October 2021. The dental implant surgery navigation system DENTVISION acquired PMDA Class II certification in February 2022 and has been on sale since April 2022.
Research
Research Interests
Awards
- Research, development and commercialization of dental implant surgery navigation system using infrared rays
keyword : dental implant, surgical navigation system
2007.04. - Development of dental implant surgery supporting robot system
keyword : Dental implant Surgery robot
2011.07～2016.09.
Papers
Presentations
- Objective Evaluation of Masticatory Ability and Movement of Perioral Soft Tissue
-A case of implant treatment a patient who lost many teeth congenitally-
Tsukano T, Okimoto K, Ohuchida R, Daitou F, Kitahara T*, Terada Y
Division of Oral Rehabilitation, Graduate School of Dental Science, Kyushu University
*Division of Oral Health, Growth and Development, Graduate School of Dental Science, Kyushu University - mage-guided Otologic Surgery based on Patient Motion Compensation and Intraoperative Virtual CT,
Hong J, Matsumoto N, Ouchida R, Komune S, Hashizume M,
Kyushu University
Educational
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