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1988 Fiscal Year Final Research Report Summary

Evaluation in Facial Contour and Maxillofacial Function Following Orthognathic Surgery

Research Project

Project/Area Number 62570896
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 外科・放射線系歯学
Research InstitutionKyoto University

Principal Investigator

IIZUKA Tadahiko  Faculty of Medicine, Kyoto University, Professor, 医学部, 教授 (80026921)

Co-Investigator(Kenkyū-buntansha) MATSUKI Masanori  Faculty of Medicine, Kyoto University, Assistant, 医学部, 助手 (90165796)
MURAKAMI Ken-Ichirou  Faculty of Medicine, Kyoto University, Assistant Professor, 医学部, 講師 (00174269)
HIROOKA Yasuhiro  Faculty of Medicine, Kyoto University, Assistant, 医学部, 助手 (60173275)
NISHIDA Mitsuo  Faculty of Medicine, Kyoto University, Assistant Professor, 医学部, 講師 (50154620)
HYO Yukitada  Faculty of Medicine, Kyoto University, Assistant Professor, 医学部, 講師 (70115921)
Project Period (FY) 1987 – 1988
KeywordsMaxillary Osteotomy / Sagittal Splitting Osteotomy / Nasal Height / Gonial Angle / Maxillofacial Function / Joint Murmur / Joint Pain / 術後形態予測
Research Abstract

1. Surgical changes in soft tissue profile after Le Fort I type osteotomy were cephalometrically evaluated in patients with minimum 1 year follow-up. Nasal angle and nasal height were reduced in their values because of larger amount of advancement of Sn than that of Prn. By maxillary anterior segmental osteotomy, nasal height was not reduced and Sn was remarkably brought anteriorly in comparison with posterior movement of Prn which could be nearly disregarded.
2. Surgical changes of gonial angle and ramus inclination were cephalometrically evaluated in 45 patients with mandibular prognathism. The gonial angle and ramus in clination were improved with the mean values of 4.3 and 4.5 degree respectively. These results showed that the sagittal splitting osteotomy of the mandibular ramus plays great role in improvement of the obtuse gonial angle in the patient with mandibular prognathism. A new technique for two- and three-dimensional prediction of soft and hard tissue contour was developed using plaster cast of the mandubular dental arch, occlusal splint and computer graphic system.
3. A questionnare study was made in 178 patients with mandibular deformities operated by sagittal splitting osteotomy, anterior segmental osteotomy and genioplasty for evaluation on masticatory function, sensory disturbance of the lower lip and temporomandibular joint function. 80.2% of the patients was satisfied in masticatory function and sensory disturbance was disappeared in 50% of the patients within 1 year postoperatively. 37.9% of the patients operated by sagittal splitting osteotomy complained of the disturbance in 2 years postoperatively. The joint pain at jaw movement was observed in 38.7% of the patients by the osterotomy immediately after releasing intermaxillary fixation and disappeared completely in all of the poerated cases after 3 years postoperatively.

  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] 廣岡康博,飯塚忠彦 他: 日本顎変形症研究会誌. 6. 175-178 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 西田光男: 日本口腔外科学会雑誌. 34. 2562-2575 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 西田光男: 日本口腔外科学会雑誌. 35. 16-30 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 西田光男: 日本口腔外科学会雑誌. 35. 31-45 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 西田光男: 日本口腔外科学会雑誌. 35. 46-62 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岩永昌久,飯塚忠彦 他: 日本顎変形症研究会誌. 6. 148-151 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 広岡康博 他: 日本顎変形症研究会誌. 8. 10-13 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 北川薫 他: 日本顎変形症研究会誌. 7. 66-70 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 足立尚 他: 日本顎変形症研究会誌. 8. (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 飯塚忠彦: 日本顎変形症研究会誌. 8. (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasuhiro Hirooka et al.: "Changes in Soft Tissue Profile Following Wassmund-Wunderer's Osteotomy." Bulletin of Japanese Society for Jaw Deformities (Bull. Jap. Soc. Jaw Deform.). 6. 175-178 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mitsuo Nishida: "Studies on Cephalometric Prediction for Surgical Correction of Mandibular Deformities Part I. Lateral Cephalometric Changes on three-dimensional mandibular movement" Jpn. J. Maxillofac. Surg.34. 2562-2575 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mitsuo Nishida: "Studies on Cephalometric Prediction for Surgical Correction of Mandibular Prognathism Part II. A new Technique for Paper Surgery by Application of Combination with Occlusal Splint and Plaster Cast of the Mandibular Dental Arch" Jpn. J. Maxillofac. Surg.35. 16-30 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mitsuo Nishida: "Studies on Cephalometric Prediction for Surgical Corrction of Mandibular Prognathism Part III. Cephalometric evaluation of Various methods for Prediction of Soft Tissue Profile in Ortho-gnathic Surgery for Mandibular Prognathism" Jpn. J. Maxillofac. Surg.35. 31-45 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mitsuo Nishida: "Studies on Cephalometric Prediction for Surgical Correction of Mandibular Prognathism Part IV. Evaluation of Computer Graphic Prediction on the Hard and Soft Tissue Profile, and Three-dimen-sional Craniofacial Form" Jpn. J. Maxillofac. Surg.35. 46-62 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masahisa Iwanaga: "Cephalometric Evaluation of Soft Tissue Profile following Le Fort I Type Osteotomy" Bull. Jap. Soc. Jaw Deform.6. 148-151 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yasuhiro Hirooka: "Clinico-statistical Study on Surgical Correction for Jaw Deformities in our Clinic for Past 10 Years" Bull. Jap. Soc. Jaw Deform.7. 10-13 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kaoru Kitagawa: "Cephalometric and Clinical Evaluation on Surgical and Orthodontic Treatments for Adult Patients with Bimaxillary Protrusion" Bull. Jap. Soc. Jaw Deform.7. 66-70 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hisashi Adachi: "Postsurgical Evaluation in Patients with Jaw Deformities Part I. -a questionnare study-" Bull. Jap. Soc. Jaw Defor.8. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tadahiko Iizuka: "Changes in Soft Tissue Contour by Orthognathic Surgery" Bull. Jap. Soc. Jaw Deform.9. (1989)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1990-03-20  

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