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Development of a simulator for educational oral surgery using virtual reality

Research Project

Project/Area Number 08557115
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Surgical dentistry
Research InstitutionOKAYAMA university (1997-1998)
Osaka University (1996)

Principal Investigator

SUGAHARA Toshio  Okayama university, Dental school, professor, 歯学部, 教授 (10116048)

Co-Investigator(Kenkyū-buntansha) MORI Yoshihide  Osaka university, Faculty of dentistry, assistant professor, 歯学部, 助手 (00231639)
UENO Takaaki  Okayama university, Dental school, assistant professor, 歯学部, 助手 (60252996)
MISHIMA Katsuaki  Okayama university, Hospital of dentistry, assistant professor, 歯学部附属病院, 講師 (60304317)
水川 展吉  岡山大学, 歯学部, 助手 (00263608)
南 克浩  大阪大学, 歯学部・附属病院, 医員
作田 正義  大阪大学, 歯学部, 教授 (00028755)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥19,600,000 (Direct Cost: ¥19,600,000)
Fiscal Year 1998: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1997: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥15,800,000 (Direct Cost: ¥15,800,000)
Keywordsvirtual reality / surgical simulator / oral surgery / CT / three-dimensional model / 手術シュミレーター
Research Abstract

In 1996 and 1997, basic problems were studied for construction of a simulator for orthognathic surgery The programs of sulerimposition of the (lata for frontal and lateral cephalograms, CT and dental casts were developed. Using the programs, the coordinate system delineated by the cephalograms could be applied to the data for CT and dental casts, and these three data could be observed in the same coordinate system. Subsequently, construction of simulator for orthognathic surgery, especially sagittal split ramus osteotomy, was tried in 1998, using AVS Medical viewer of graphics workstation.
Region growing technique was used for extraction of the mandible. A voxel model was then made with the data for cancellous bone, so this model could be applied to complex simulation. A threshold value was defined as 200 Hounsfield units. Formerly, osteotomy could be simulated in two-dimensions. In this system, osteotomy could be simulated in the maneuver that, reflected actual surgical procedures, inc … More luding saw, bur and osteotome after development. of modules. Consequently, surgical procedures could be simulated in three-dimensional computer graphics. Three-dimensional computer graphics could contain the data for dental casts, and this made it possible to automate shift of lateral bone fragments after splitting with high precision. Furthermore, function of detecting interference between two bone fragments after splitting was developed, and this enabled to analyze bony interference that it was formerly difficult to predict, and this clarified that. bony interference caused various problems.
In this system, it. took about. an hour to simulate the osteotomy, and we can apply this system to other surgical procedures after altering osteotomy lines. This system possessed high reality because of three-dimensional graphics with high resolution and use of data with high reliability, and this system possessed satisfactory function of educational simulator. Furthermore, this system would be useful for clinical application including diagnosis and investigation of treatment plan. Less

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Mishima K., Sugahara T., et al: "A Case of Pai Syndrome" Plastic and Reconstructive Surgery. 103・1. 166-170 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sugahara T., Mori Y., et al: "Development of a 3-D measurement and evaluation system for facial forms with a liquid crystal range finder" Computer Methods and Programs in Biomedicine. 58. 159-173 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 菅原利夫、三島克章、他: "骨形成過程の微細骨粱構造の観察 -マイクロCTの骨質評価への使用経験-" 日口外誌. 44・12. 975-977 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sugahara T., Mori Y., et al: "Rapid Three-Dimensional Measuring System for Facial Surface Structure" Plastic and Reconstructive Surgery. 102・6. 2108-2112 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mishima K., Sugahara T., et al: "Effects of Presurgical Orthopedic Treatment in Infants with Complete Bilataral Cleft Lip and Palate" Cleft Palate-Craniofacial Journal. 35・3. 227-232 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mishima K., Sugahara T., et al.: "A Case of Pai Syndrome." Plastic and Reconstructive Surgery. 103・1. 166-170 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sugahara T., Mori Y., et al.: "Development of a 3-D measurement and evaluation system for facial forms with a liquid crystal range finder." Computer Methods and Programs in Biomedicine. 58. 159-173 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mishima K., Sugahara T., et al.: "Rapid Three-dimensional measuring system for Facial Surface Structure." Plastic and Reconstructive Surgery. 102・6. 2108-2112 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mishima K., Sugahara T., et al.: "Observation of microscopic bone structure during bone formation." Japanese Journal of Oral and Maxillofacial Surgery. 44・12. 975-977 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mishima K., Sugahara T., et al.: "Effects of Pre-surgical Orthopedic Treatment in Infants with Complete Bilataral Cleft Lip and Palate." CleftPalate-Craniofacial Journal. 35・3. 227-232 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mishima K., Sugahara T., et al: "A Case of Pai Syndrome" Plastic and Rconstructive Surgery. 103・1. 166-170 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mishima K., Sugahara T., et al: "Effects of Presurgical Orthopedic Treatment in Infants with Complete Bilataral Cleft Lip and Palate" Cleft Palate-Craniofacial Journal. 35・3. 227-232 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 菅原利夫、三島克章、他: "骨形成過程の微細骨梁構造の観察-マイクロ-CTの骨質評価への使用経験-" 日口外誌. 44・12. 975-977 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Sugahara T., Mori Y., et al: "Rapid Three-Dimensional Measuring System for Facial Surface Structure" Plastic and Reconstructive Surgery. 102・6. 2108-2112 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Sugahara, K.Minami: "Total TMJ Replacement for obstructive sleep apnea syadrome associated with TMJ destruction by Rheumatoid Arthritis" 1997 Annual Congress of Korean Academy of Maxillofacial Plastic and Recoustructive Surgery. 13-14 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Sugahara, K.Mishima: "Surgical Therapy for Obstructive Sleep Apnea Syndrome Associated with TMJ Destruction by Rheumatoid Arthritis." Iut.j.Oral z Maxillofac Surg Suppl. 1:69. (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima, T.Sugahara: "Palatal Configuration in Complete Dilateral Gleft Lip and Palate Infants before and after Choiloplasty" Cleft Paiate-Craniofacial Journal. 34:6. 475-482 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Sugahara, K.Mishima: "Transactions : 8th International Conaress on Cleft Palate and Related Craniofaciai Anomalies" Developmcut of a 3-D Measurcment and Evaluation system for Facial Forms with Liquld crystal Range Finder and Its Application to cleft Lip Surgary., 81-94 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima, T.Sogahara: "Transactions : 8th International Congress on Cleft Palate and Related Cranifacial Anomalies" Comparison of Palatal Forms In Coplete Unilaterai Cleft Lip And Palate Infants with and without a Hotz Plato., 394-397 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Sugahara, K.Minami: "Transactions : 8th International Congress on Cleft Palate and Related Cranifacial Anomalies" Morphologic Analysis of Alar Dase After Secondary Done Grafting Into Alveolar Cleft., 445-449 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Sugahara, Y.Mori: "Transactious : 8th International Congress on Cleft Palate and Related Cranifacial Anomalies" Three-Dimensional Evaluation of The Nasal Forms with The Forked Flap Technique In Bilateral Cleft Lip and Palate Children, 552-555 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Sugahara, K.Mishima: "Transactions : 8th International Congress on Cleft Palate and Related Craniofacial Anomalies" Quatitative Evaluation of Bone Graft in An Experimental Alveolar Cleft Model, 932-936 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Sugahara,T.,et al: "Three-Dimensional Comparison between the Palatal Forms in Infants with Complete Unilateral Cleft Lip,Alveolus,and Palate (UCLP) with and without Hotz's Plate" Cleft Palate and Craniofacial Journal. 33 : 3 ;. 246-251 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Sugahara,T.,et al: "Three-Dimensional Comparison between the Palatal Forms in Complete Unilateral Cleft Lip and Palate with and without Hotz Plate from Cheiloplasty to Palatoplasty" Cleft Palate and Craniofacial Journal. 33 : 4 ;. 312-317 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Sakuda,M.et al: "Application of a New Method for Anthropometric Analysis of the Nose" Plast.Reconst.Surg.98 : 4 ;. 637-644 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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