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1992 Fiscal Year Final Research Report Summary

Pathological Study on Intraepithelial Cells in Normal Odontogenesis and in Tumorigenesis of Odontogenic Tumors

Research Project

Project/Area Number 02670811
Research Category

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

Allocation TypeSingle-year Grants
Research Field Morphological basic dentistry
Research InstitutionIwate Medical University

Principal Investigator

TAKEDA Yasunori  Iwate Med Univ, Sch Dent, Lec., 歯学部, 講師 (60137536)

Co-Investigator(Kenkyū-buntansha) TAKEDA Yasunori  Iwate Med Univ, Sch Dent, Lec. (60137536)
Project Period (FY) 1990 – 1992
Keywordsodontogenic tumors / histogenesis / intraepithelial cells / melanocyte / tooth germ / enamel organ / hard tissue formation / epithelial-mesenchymal interaction
Research Abstract

1. Melanocytes in normal development of tooth germ : Melanocytes were scattered in mesenchymal tissue around early stage of tooth germ of dog fetus, and these melanocytes migrated through bone marrow, and not originate from oral mucosal epithelium. Such findings of melanocytes in bone marrow have not been described in the literature.
2. Fate of melanocytes in jaw bone : The fate of melanocytes appeared in jaw bone of the fetal stage was studied in adult dogs. Melanocytes were distributed in the periodontal ligament, especially in lower half part of the tooth roots. These melanocytes showed no relation to cementum, alveolar bone or gingiva. Such fringing of melanocytes in periodontal ligament has not been described in the literature.
3. Distribution of odontogenic epithelium in body of the jaw bone of human adult : Distribution of odontogenic epithelium in body of the jaw bone of human adult was studied. Various numbers of foci of odontogenic epithelium were seen in the neurovascular canals of body of the jaw bone, and some of odontogenic epithelial foci had structures similar to those of enamel organ. These odontogenic epithelium located in deep region of the bone may develop to odontogenic epithelial tumors and cysts.
4. Clinicopathological studies on odontogenic tumors and its allied lesions :
(1) Ameloblastoma with prominent stromal ossification
(2) Ameloblastic odontosarcoma (ameloblastic fibro-odontosarcoma) in the mandible
(3) Ameloblastoma located in the alveolar bone
(4) Duct-like structures in odontogenic epithelium of compound odontoma.
(5) Ameloblastoma in children : a clinicopathologic study and review of the literature
(6) Ameloblastoma of the jaw in Japan
(7) Intra-osseous squamous cell carcinoma of the maxilla : probably arisen from non-odontogenic epithelium.
(8) Others

  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Takeda,Y.,et al.: "Ameloblastoma with prominent stromal ossification." Acta Pathologica Japonica. 40. 780-784 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takeda,Y.,et al.: "Ameloblasti odontosarcoma(ameloblastic fibro-odontosarcoma)in the mandible." Acta Pathologica Japonica. 40. 832-837 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takeda,Y.,et al.: "Ameloblastoma located in the alveolar bone;a case report." Journal Nihon University School of Dentistry. 32. 270-274 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takeda,Y.: "Duct-like structures in odontogenic epithelium of compound odontoma." Journal of Oral Pathology & Medicine. 20. 184-186 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takeda,Y.,et al.: "Ameloblastoma in children;a clinicopathologic study and review of the Japanese literature." Pediatric Dental Journal. 1. 157-160 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takeda,Y.,et al.: "Ameloblastoma of the jaw in Japan." Japan Journal of Oral Diagnosis & Oral Medicine. 4. 267-272 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takeda,Y.: "Intra-osseous squamous cell carcinoma of the maxilla." British Journal of Oral & Maxillofacial Surgery. 29. (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] FUKUTA,Y.,et al.: "Periapical cemental dysplasia;a case with multiple-involving the maxilla and mandible." Japan Journal of Oral Diagnosis & Oral Medicine. 5. 271-275 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 沢田 勤也監修: "口腔病変の細胞診" 永末書店, 192 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takeda,Y., et al.: "Ameloblastoma with prominent stromal ossification" Acta Pathologica Japonica. 40. 780-784 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takeda,Y., et al.: "Ameloblastic odontosarcoma (ameloblastic fibro-odontosarcoma)in the mandible" Acta Pathologica Japonica. 40. 832-837 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takeda,Y., et al.: "Ameloblastoma located in the alveolar bone : a case report" Journal of Nihon University School of Dentistry. 32. 270-274 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takeda,Y.: "Duct-like structures in odontogenic epithelium of compound odontoma" Journal of Oral Pathology & Medicine. 20. 184-186 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takeda,Y., et al.: "Ameloblastoma in children : a clinicopathologic study and review of the Japanese literature" Pediatric Dental Journal. 1. 157-160 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takeda,Y., et al.: "Ameloblastoma of the jaw in Japan" Japanese Journal of Oral Diagnosis & Oral Medicine. 4. 267-272 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takeda,Y.: "Intra-osseous squamous cell carcinoma of the maxilla : probably arisen from non-odontogenic epithelium" British Journal of Oral Maxillo-facial Surgery. 5. 271-275 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Fukuta,Y., et al.: "Periapical cemental dysplasia : a case with multiple-involving the maxilla and mandible" Japanese Journal of Oral Diagnosis & Oral Medicine. 5. 271-275 (1992)

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

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Published: 1994-03-24  

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