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REMOVAL TORQUE OF BICORTICALLY STABILIZED RBM(RESORBABLE BLAST MEDIA) PIN IMPLANTS IN RABBIT TIBIA 원문보기

대한치과보철학회지 = The journal of Korean academy of prosthodontics, v.44 no.6, 2006년, pp.722 - 733  

Kim, Kwon-Sik (Major in Dentistry, Department of Medical Science, Korea University) ,  Suh, Kyu-Won (Department of Prosthodontics, Korea University Medical Center, Korea University) ,  Lee, Richard Sung-Bok (Department of Prosthodontics, School of Dentistry, Kyung-Hee University) ,  Ryu, Jae-Jun (Department of Prosthodontics, Korea University Medical Center Korea University)

Abstract ▼ AI-Helper 아이콘AI-Helper

Statement of problem. The use of small diameter implants having less than 3 mm in diameter were restricted because of lack of bonding strength to bone. Purpose. The purpose of this study was to observe how much resorbable blast media pin implants increase the binding force to the bone compared to ma...

주제어

#RBM(Resorbable blast media)   #Pin implant   #Removal torque   #Rabbit   #Histological Analysis  

AI 본문요약
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제안 방법

  • Bone tissue presents a wide variety of data regarding the mechanical properties of bone. For this study of the influence of implant fixation, the Young’s modulus was cho­ sen 3 GPa for cancellous bone and 13.7 GPa for cor­ tical bone. The Young’ s modulus of titanium implant was 120 GPa.
  • The mesh was constructed using Tetra hedral elements. Three dimensional models of dental implants and their surrounding bone were applied for studying the bone loading patterns for 50 Ncm vertical and 50 Ncm oblique (30 degree angle) forces respectively.
  • The purpose of this study was to observe how much RBM(resorbable blast media) pin implants increase the binding force to the bone compared to machined transitional pin implants by measuring removal torque, and whether they can be used as final implants for replacement of small diameter teeth.
  • 5 kg at the start, were used in this study. The rabbits were divided into six groups, each consisting of five animals that were planned to be sacrificed at 2, 4, and 8 weeks after the insertion of the implants. The animals were kept in standard cages and fed standard diet (Table I).
  • The mesh was constructed using Tetra hedral elements. Three dimensional models of dental implants and their surrounding bone were applied for studying the bone loading patterns for 50 Ncm vertical and 50 Ncm oblique (30 degree angle) forces respectively. Bone tissue presents a wide variety of data regarding the mechanical properties of bone.

대상 데이터

  • Fifteen adult New Zealand rabbits of both sex­ es, weighing approximately 3.5 kg at the start, were used in this study. The rabbits were divided into six groups, each consisting of five animals that were planned to be sacrificed at 2, 4, and 8 weeks after the insertion of the implants.
  • Implants manufactured from grade 5 com­ mercially pure titanium were used in this study. The implants had a length of 10 mm and an out­ er diameter of 2.
  • study. The implants had a length of 10 mm and an out­ er diameter of 2.4 mm and had a hexagonal impression on the top that fitted to the removal equipment. A total of ninety implants were divid­ ed into two groups.

데이터처리

  • ). Differences in mean peak torque values of RBM pin implants ver­ sus machined pin implants were compared for sig­ nificance with a paired student t test. One way analysis of variance (ANOVA) and Tukey HSD were used to compare significance differences among two, four, and eight weeks results.
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참고문헌 (38)

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