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A Radiological Study on the Bone Structures in the Functional Temporomandibular Joint

Research Project

Project/Area Number 01480472
Research Category

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

Allocation TypeSingle-year Grants
Research Field 外科・放射線系歯学
Research InstitutionThe University of Tokushima

Principal Investigator

UEMURA Shusaburo  The University of Tokushima, School of Dentistry, Professor, 歯学部, 教授 (20028799)

Co-Investigator(Kenkyū-buntansha) MAEDA Naoki  The University of Tokushima, University Dental Hospital, Research Associate, 歯学部附属病院, 助手 (10219272)
FUKUTOMI Sigeru  The University of Tokushima, School of Dentistry, Research Associate, 歯学部, 助手 (60199247)
IWASAKI Hirokazu  The University of Tokushima, School of Dentistry, Associate Professor, 歯学部, 助教授 (30151723)
TAKAKI Yasunori  The University of Tokushima, School of Dentistry, Research Associate, 歯学部, 助手 (20236201)
HOSOKI Hidehiko  The University of Tokushima, University Dental Hospital, Assistant Professor, 歯学部附属病院, 講師 (60199502)
佐藤 郁雄  徳島大学, 歯学部, 助手 (90196212)
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥7,000,000 (Direct Cost: ¥7,000,000)
Fiscal Year 1991: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1990: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1989: ¥5,800,000 (Direct Cost: ¥5,800,000)
KeywordsTemporomandiburar Joint / Simultaneous Multisection Tomography / Adaptive Change / Chewing Cycle / Functional Loading
Research Abstract

An evaluation of abnormalities on radiograms of the temporomandibular joints (TMJs) depends on the inter-and intrasubjects differences in form of their bone structures. The aim of this radiologic study is to clarify the adaptive bone changes of the TMJs to habitual jaw movements, estimating the basic forms of the lateral aspects of the condylar heads just after the growth period of them and investigating a process of structural changes of the TMJs on the selective lateral tomograpms of the patients with temporomandibular joint disorders (TMD), and analyzing chewing cycles of the patients recorded by a Sirognatho Analyzing System II. The resutls were as follows ;
(1) Flattening or a concavity was unexpectedly found on the posterior articular surface of the condylar heads of the patients with TMD by the selective lateral tomography as a routine radiographic examination of the TMJs.
(2) With an incidence of about 30%, the concavity was found on the condylar head of 159 patients, even in eve … More ry age group on a radiological study. The result indicated that the concavity was not merely a aging, but probably an adaptive change in the patient with TMD.
(3) A superimposing technique of simultaneous multisection tomograms was developed for the radiographic measurement of the TMJs. On a follow-up study, the technique proved that the change in shape of the condylar head and the spatial change of the mandible were interacted with each other. That is, antero-superior repositioning of the condylar head lead the condyle into the shortening.
(4) Lateral aspects of the condylar head of the patients just after the growth period were classified into 6 groups. The first, significantly small and rounded group and the second, elongated group were considered to be a developmental anomaly due to the functional loading to the TMJs during jaw movements on their growth period.
(5) Analysis of chewing cycles of TMD patients could not manifest the relationships between the adaptive changes of the condylar head and jaw movements. Further studies on jaw movements were required for the functional loading. Less

Report

(4 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • 1989 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] UEMURA,S.: "A Radiological study on the Adaptive Chenges in the Functional Temporomandibulor Joint" Oral Radiology. 4. 109-117 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 細木 秀彦: "顎関節症患者の経時的観察ーX線検査の時期と下顎頭骨形態の変化" 日本顎関節雑誌. 2. 48-58 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 細木 秀彦: "外科的矯正手術患者の経時的観察ー手術後の下顎頭の形態変化と下顎頭の位置的変化ー" 歯科放射線. 30. 185-191 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 上村 修三郎: "機能に伴う顎関節の適合性変化ー下顎頭後面の陥凹についてー" 歯科放射線. 30. 211-218 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 河野 文昭: "顎関節側面断層撮影による高齢者の下顎頭形態の観察ー特に無歯顎者下顎頭の形態についてー" 補綴臨床. 23. 459-462 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 高木 康里: "顎関節のX線写真計測に関する研究ー顎関節多層断層像重ね合わせ法およびその精度に関する検討ー" 歯科放射線. 31. 1-14 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 高木 康里: "多層断層像重ね合わせ法による顎関節の骨形態,下顎の位置ならびに骨関節隙の経時的変化の分析" 四国歯学会雑誌. 4. 63-85 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 細木 秀彦: "X線写真から見た顎関節症" 四国歯学会雑誌. 4. 175-185 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] UEMURA, S., TAkAGI, Y., HOSOKI, H., IWASAKI, H., MASUYAMA, H., SATO, I., FUKUTOMI, S. and NOSAKA, A.: "A Radiological Study on the Adaptive Changes in the Functional Temporomandibular Joint." Oral Radiol.4. 109-117 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] HOSOKI, H., TAKAGI, Y. IWASAKI, H. and UEMURA, S: "A Radiological Follow-up Study on the Patients with Temporomandibular Joint (TMJ) Arthrosis. -Relation Between the Timing of Radiographic Examination and the Morphological Change of the Condylar Head-" J. Jpn. Soc T. M. J.2. 48-58 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] HOSOKI, H., TAKAGI, Y. IWASAKI, H., UEMURA, S., TENSIN, S., HIROTA, K., KAWATA, T., YOSHIDA, H and SATO, M.: "A Radiological Follow-up Study on the Patients with Orthodontic Surgery. -Relationships Between the Morphological Change of the Condylar Head and the Position of the Condyle within the Fossa at the Closed Mouth Position-" Dent. Radiol.30. 1-7 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] UEMURA, S., IWASAKI, H., HOSOKI, H., IWAMOTO, Y., TAKAGI, Y., SATO, I., FUKUTOMI, S., MAEDA, N., MASADA, J., AKASI, M., KONAKA, H., SAKANO, H. and TADA, A.: "Adaptive Bony Changes in the Functional Temporomandibular Joints. -A Consideration of the Concavity on the Posterior Articular Bony Surface of the Condylar Head" Dent. Radiol.30. 27-34 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] KAWANO, F., MATSUMOTO, N., HOSOKI, H. TAKAGI, Y. and UEMURA, S.: "A Tomographic Study on the Condilar Head in Edentulous Subjects." Practice in Prothodontics. 23. 459-462 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] TAKAGI, Y., HOSOKI, H., IWASAKI, H. and UEMURA, S.: "A Study on the Radiographic Measurements on the Temporomandibular joints : The Method to Superimpose Multisection Tomograms and its Accuracy." Dent. Radiol.31. 1-14 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] TAKAGI, Y.: "Radiologic Analyses on the Changes in Joint Morphology, Mandibular Position and Bony Joint Space of the Temporomandibular Joint by Superimposing Multisection Tomograms." Shikoku Dent. Res.4. 63-85 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] HOSOKI, H.: "A Radiological Study on the Patients with Temporomandibular Joint (TMJ) Arthrosis" Shikoku Dent. Res.4. 175-185 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 高木 康里: "顎関節のX線写真計測に関する研究ー顎関節多層断層像重ね合わせ法およびその精度に関する検討ー" 歯科放射線. 31. 1-14 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 高木 康里: "多層断層像重ね合わせ法による顎関節の骨形態、下顎の位置ならびに骨関節隙の経時的変化の分析" 四国歯学会雑誌. 4. 63-85 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 細木 秀彦: "X線写真からみた顎関節症" 四国歯学会雑誌. 4. 175-185 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 久保 典子: "顎関節側面X線断層撮影による下顎頭の形態分析(抄)" 歯科放射線. 31. 328-329 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] UEMURA,S.: "A RADIOLOGICAL CONSIDERATION OF THE CONCAVITY ON THE POSTERIOR ARTICULAR BONY SURFACE OF THE CONDYLAR HEAD" DENTO MAXILLO FACIAL RADIOLOGY. Suppl11. 127 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 上村 修三郎 他: "機能に伴う顎関節骨形態の適合性変化 ー下顎頭後面の陥凹についてー" 歯科放射線. 30. 27-34 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] UEMURA,S.: "A radiological Study on the adaptive changes in the functional temporomandibular joint" Oral Radiology. 4. 109-117 (1988)

    • Related Report
      1989 Annual Research Report
  • [Publications] 上村修三郎: "機能に伴う顎関協骨形態の変化(下顎頭の陥凹について)(抄)" 歯科放射線. 29. 92-93 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 上村修三郎: "顎関節の写真計測(抄)" 歯科放射線. 29. 226 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 細木秀彦: "顎関節症患者の経時的観察ーX線検査の時期と下顎頭形態の変化ー" 日本顎関節学会雑誌. 2. (1990)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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