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Accuracy of a proposed implant impression technique using abutments and metal framework

Lee, Hyeok-Jae    (Department of Prosthodontics, College of Dentistry, Seoul National University   ); Lim, Young-Jun    (Department of Prosthodontics, College of Dentistry, Seoul National University   ); Kim, Chang-Whe    (Department of Prosthodontics, College of Dentistry, Seoul National University   ); Choi, Jung-Han    (Department of Prosthodontics, Samsung Medical Center, Sungkyunkwan University School of Medicine   ); Kim, Myung-Joo    (Department of Prosthodontics, College of Dentistry, Seoul National University  );
  • 초록

    PURPOSE. This study compared the accuracy of an abutment-framework (A-F) taken with open tray impression technique combining cement-on crown abutments, a metal framework and resin cement to closed tray and resin-splinted open tray impression techniques for the 3-implant definitive casts. The effect of angulation on the accuracy of these 3 techniques was also evaluated. MATERIAL AND METHODS. Three definitive casts, each with 3 linearly positioned implant analogs at relative angulations 0, 30, and 40 degrees, were fabricated with passively fitted corresponding reference frameworks. Ten impressions were made and poured, using each of the 3 techniques on each of the 3 definitive casts. To record the vertical gap between reference frameworks and analogs in duplicate casts, a light microscope with image processing was used. Data were analyzed by two-way analysis of variance and the Tukey test. RESULTS. The open tray techniques showed significantly smaller vertical gaps compare to closed tray technique (P .05). CONCLUSION. The accuracy of the A-F impression technique was superior to that of conventional techniques, and was not affected by the angulation of the implants.


  • 주제어

    Implant .   Abutment .   Metal framework .   Vertical gap .   Angulation.  

  • 참고문헌 (23)

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    1. 1968 "즉시의치제작(卽時義齒製作)을 위한 구강(口腔)의 외과적(外科的) 처치(處置)" 대한치과보철학회지 = The journal of Korean academy of prosthodontics 8 (1): 117~118    
    2. 1969 "치과용(齒科用) 경석고(硬石膏) 의 표면경도(表面硬度) 강화(强化)에 관(關)한 실험적(實驗的) 연구(硏究)" 대한치과보철학회지 = The journal of Korean academy of prosthodontics 9 (1): 23~27    
    3. 1974 "백서악하선적출이 갑상선에 미치는 영향" 大韓齒科醫師協會誌 = The journal of the Korean dental association 12 (12): 925~927    
    4. 1978 "하악구치 협설교두면간의 상대성에 관한 연구" 大韓齒科醫師協會誌 = The journal of the Korean dental association 16 (2): 147~150    
    5. 1978 "복제의치 제작예" 大韓齒科醫師協會誌 = The journal of the Korean dental association 16 (2): 151~153    
    6. 1981 "한국산(韓國産) 치과주조용(齒科鑄造用) 저금함유합금(低金含有合金)의 조성(組成) 및 기계적(機械的) 성질(性質)에 관(關)한 비교연구(比較硏究)" 대한치과보철학회지 = The journal of Korean academy of prosthodontics 19 (1): 17~27    
    7. 1981 "총의치 인공치아배열에 발음의 이용법" 大韓齒科醫師協會誌 = The journal of the Korean dental association 19 (11): 917~921    
    8. 1985 "OCCLUSAL SPRINT가 저작운동에 미치는 영향" 대한치과보철학회지 = The journal of Korean academy of prosthodontics 23 (1): 125~136    
    9. 1985 "총의치의 최종 인상" 大韓齒科醫師協會誌 = The journal of the Korean dental association 23 (2): 101~104    
    10. 1986 "캔디다 알비칸스의 구강내 빈도 및 분포도에 관한 연구" 대한치과보철학회지 = The journal of Korean academy of prosthodontics 24 (1): 91~103    
  • 최정한 (6)

  • Kim, Myung-Joo (38)

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