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Ouchida Riichi Last modified date:2022.01.05

Lecturer / Division of Fixed Prosthodontics Faculty of Dental Science Kyushu University
Oral Rehabilitation
Kyushu University Hospital




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Homepage
https://kyushu-u.pure.elsevier.com/en/persons/riichi-ouchida
 Reseacher Profiling Tool Kyushu University Pure
Academic Degree
Ph.D.
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 system using a registration-ready tooth template
Purpose
Dental implant surgery requires drilling a hole in the jawbone carefully observing the other organs’ possible damage. There are several complications that should be avoided, which are penetration to maxillary sinus or incisive canal, damage to mandible nerve, and over-drilling outside jawbone. Surgical navigation can be a great help to avoid these complications, because it displays the current drill tip position and near critical organs. In this study, we designed a patient specific tooth template that has both markers for registration and markers for position reference. Using this template, patient to image registration can be performed before the surgery. The operation time is not extended for the registration. We applied the developed navigation system to three implant surgeries and confirmed its feasibility.
We have been using an infrared navigation system at the time of surgery dental implant to perform minimally invasive and safe treatment in this way. We are contributing to a safe minimally invasive treatment has been surgery or brain tumor also used to cochlear implant surgery otolaryngology a navigation system with infrared markers were attached to the maxillary teeth also. We are developing a robotic system support dental implant surgery.We have been promoting the development of a dental implant surgery assistance robotic system with industry and academia-industry collaboration.
First, in order to put the dental implant navigation system to practical use, a venture company from Kyushu University was launched in March 2017. After that, a prototype was made, and while repeating clinical applications through the on-campus ethics committee, improvements were made to both hardware and software, and in June 2020, a prototype product for commercialization was completed. At the same time, QMS was constructed for PMDA Class II certification, and in April 2021, all electrical tests were cleared during the third-party certification period, and a report was obtained. Application documents are currently being prepared for PMDA Class II certification, and the dental implant navigation system is scheduled to go on sale in July 2021.
Research
Research Interests
  • Development of dental implant surgery supporting robot system
    keyword : Dental implant  Surgery robot
    2011.07~2016.09.
  • 3-D Real-time Navigation System for dental implant Surgery
    keyword : dental implant, surgical navigation system
    2007.04.
Academic Activities
Papers
1. Kazuhiro Koikawa a, Kenoki Ohuchida a, *, Shin Takesue a, Yohei Ando a, Shin Kibe a, Hiromichi Nakayama a, Sho Endo a, Toshiya Abe a, Takashi Okumura a, Kohei Horioka a, Masafumi Sada a, Chika Iwamoto b, Taiki Moriyama a, Kohei Nakata a,
Yoshihiro Miyasaka a, Riichi Ohuchida c, Tatsuya Manabe a, Takao Ohtsuka a, Eishi Nagai a, Kazuhiro Mizumoto a, Makoto Hashizume b, Masafumi Nakamura , Pancreatic stellate cells reorganize matrix components and lead pancreatic cancer invasion via the function of Endo180 , Cancer Letters 412 (2018) 143e154 An international journal providing a forum for original and pertinent contributions in cancer research, 412, 143-154, 2018.03.
2. Masamichi Oka, Byunghyun Cho, Nozomu Matsumoto, Jaesung Hong, Misaki Jinnouchi, Riichi Ouchida, Shizuo Komune, Makoto Hashizume, Safe and rapid contouring of fibro-osseous lesions in the orbital area using navigation with minimally invasive cranial bone registration, 10.1017/S0022215114002412, 129, S62-S68, 2015.03.
3. Hong J, Matsumoto N, Ouchida R, Komune S, Hashizume, Medical Navigation System for Otologic Surgery Based on Hybrid Registration and Virtual Intraoperative Computed Tomography, IEEE Transactions on Biomedical Engineering vol.56, No.2, February, pp426-432 2009, vol.56, No.2, February, pp426-432 2009, 2009.02.
4. Hong J, Matsumoto N, Ouchida R, Komune S, Hashizume M,, Image-guided Otologic Surgery based on Patient Motion Compensation and Intraoperative Virtual CT, , Proceedings of ACCAS 2007, no. P110064(CD), 2007, 2008.05.
Presentations
1. Complication rates and types for implants provided at the Kyushu University Hospital.
.
2. Development of a dynamic dental implant surgical navigation system for hybrid design in a model and 3D digital CT image
.
3. Factors on the soft tissue form between the two implants in aesthetic site.
4. Effect of staged teeth extraction method in patients shifted from a natural tooth bridge to an implant bridge..
5. The cases substituted from a removable partial denture for an implant bridge by the staged teeth extraction method .
6. The cases substituted from a natural tooth bridge for an implant bridge by the staged teeth extraction method .
7. Cases of single implant placement from the perspective of the adjacent bundle bone in the aesthetic area.
8. Cases of multiple implant placement from the perspective of the type of adjacent tooth in the aesthetic area.
9. A case of successful implant treatment in the aesthetic site combined with clinical crown-lengthening to adjacent teeth..
10. The role of bundle bone of adjacent natural teeth for single implant placement in the aesthetic site.
11. Effect of staged teeth extraction method in patients shifted from a removable partial denture to an implant bridge.
Awards
  • 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
Educational Activities
Guidance for dental students and dental residents
Research guidance for graduate students
Other Educational Activities
  • 2005.05.
  • 2005.05.
  • 2006.04.
  • 2006.04.