• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1990 Fiscal Year Final Research Report Summary

A study of Artificial Implantation in Periodontal Osseous Defects

Research Project

Project/Area Number 63480425
Research Category

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

Allocation TypeSingle-year Grants
Research Field Conservative dentistry
Research InstitutionTokyo Dental College

Principal Investigator

YAMADA Satoru  Tokyo Dental College, Periodontics, Professor, 歯学部, 講師 (20103351)

Co-Investigator(Kenkyū-buntansha) OHSUGA Utaka  Tokyo Dental College, Periodontics, Assistant Professor, 歯学部, 助手 (70167302)
Project Period (FY) 1988 – 1990
KeywordsHydroxyapatite / Periograf^<<゚!>> / Rats / Histological study / Clinical evaluation / Bone graft / Alveolar bone defect / 垂直性骨欠損部
Research Abstract

1. The purpose of this study is to investigate the histological responses of periodontal tissue to hydroxyapatite ceramic (Periograf^< <゚!> >) implanted into vertical bone defects in rats.
Results
At 10 days, bone matrix formation had begun on the surface of the apatite. At 40 days, newly formed bone tissue around the apatite demonstrated differentiation of osteoblasts followed by the formation of collagen fibers and osteoids with many small, round deposits of bone crystals.
2. Seventy-five patients who participated in a clinical study comparing the response of periodontal osseous defects to either grafting with Periograf^< <゚!> > ceramic or debridement only were followed under an active maintenance program for six-months.
The results are as follows.
(1.) In the experimental groups, the mean values for gingival recession, gain of attachment level, decrease of pocket depth and roentgenographic bone fill were respectively 1.8mm, 2.0mm, 3.7mm and 62.2% at six months postoperativery.
(2) In control groups, the mean values for gingival recession, gain of attachment level and decrease of pocket depth were respetivery 1.9mm, 0.8mm and 2.7mm

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 山田 了、その他6名: "ラットの歯糟骨欠損部へのHydroxyapatite 補填に関する組織学的研究" 歯科学報. 86. 687-700 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 簗瀬 一彦、その他6名: "ラットの歯糟骨欠損部へのβーtricalcium Phosphate補填に関する組織学的研究" 歯科学報. 87. 807-820 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山田 了、その他9名: "Periograf【○!R】の垂直性骨欠損部への応用に関する臨床的研究" 日本歯周病学会誌. 28. 144-160 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Satoru Yamada: "A histological study of Hydroxyapatite Implantation in experimental bone defects of rats" Shikwa Gakuho. 86. 687-700 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazuhiko Yanase: "a histological study of -tricalcium phosphate Implantation in experimental bone defect of rats" Shikwa Gakuho. 87. 807-820 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Satoru Yamada: "Clinical evaluation of Periograf ceramic Implants in periodontal osseous defects" J. Japan. ASS. Periodont. 28. 144-160 (1986)

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

URL: 

Published: 1993-08-12  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi