Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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EFFECTS OF SOME ROOT END FILLING MATERIALS ON THE REPAIR OF PERIRADICULAR TISSUE

수종 치근단 역충전재가 치근단 조직 함유에 미치는 영향

  • Cho, Yong-Bum (Dept. of Conservative Dentistry, School of Dentistry, Dankook University) ;
  • Hong, Chan-Ui (Dept. of Conservative Dentistry, School of Dentistry, Dankook University) ;
  • Shin, Dong-Hoon (Dept. of Conservative Dentistry, School of Dentistry, Dankook University)
  • 조용범 (단국대학교 치과대학 치과보존학교실) ;
  • 홍찬의 (단국대학교 치과대학 치과보존학교실) ;
  • 신동훈 (단국대학교 치과대학 치과보존학교실)
  • Published : 1995.03.10
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Abstract

The purpose of this study was to examine the response of periradicular tissues to amalgam, IRM, Ketac-silver and MTA(Mineral trioxide aggregate) used as a root end fillings. The lower third and fourth premolars of 5 mongrel dogs were used. Each root was resected, followed by root end fillings with experimental materials. The animals were sacrificed after 16 weeks and radiographic and histologic results were evaluated. The results were as follows : 1. Severe inflammation around apex and disruption of cortical were noted in relation to the amalgam. 2. With IRM, there was severe infiltration of inflammatory cells around filling material, but healing of cortical bone was noted. 3. With Ketac-silver, mild inflammation and thick band of fibrous connetive tissue around filling material were seen, with a cortical bone healing. 4. In case of MTA, complete regeneration of cortical bone was seen, and free MTA was surrounded with newly formed bone tissue.

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