The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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RADIOGRAPHIC EVALUATION OF BONE CHANCE AROUND OSSEOINTEGRATED IMPLANTS IN PARTIALLY EDENTULOUS JAWS WITH FIXED TISSUE-INTEGRATED PROSTHESES

부분무치악 환자에서 기능하중노출이 골유착성 임플란트 주위의 치조골 소실에 미치는 영향에 관한 방사선학적 연구

  • Yang, Soon-Bong (Department of prosthodontics, College of Dentistry, Yonsei University) ;
  • Han, Dong-Hoo (Department of prosthodontics, College of Dentistry, Yonsei University) ;
  • Yang, Ja-Ho (Department of prosthodontics, College of Dentistry, Yonsei University)
  • 양순봉 (연세대학교 치과대학 보철학교실) ;
  • 한동후 (연세대학교 치과대학 보철학교실) ;
  • 양자호 (연세대학교 치과대학 보철학교실)
  • Published : 1996.04.01
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Abstract

This paper reports marginal bone loss around osseointegrated implants after loading in partially edentulous patients in dental hospital, Yonsei University. Two types of implants($Br{\aa}nemark^{TM},\;IMZ^{TM}$) were used. Through the digital measurement on periapical radiograph around 37 implants in human subjects, marginal bone loss was observed for 24 months after delivery of prostheses. The results were as follows; 1. According to experimental periods marginal bone loss in total implants was 1.775 mm at 12 months, 1.921 mm at 24 months after delivery of prostheses(p<0.05). 2. Marginal bone loss in the $Br{\aa}nemark$ implants was 1.831 mm at 12 months, 1.833 mm at 24 months after delivery of prostheses(p<0.05). 3. Marginal bone loss in the IMZ implants was 1.578 mm at 12 months, 2.907 mm at 23 months after delivery of prostheses(p<0.05). 4. During the first year after loading, the IMZ implants showed less marginal bone loss than the $Br{\aa}nemark$ implants but, during the next the $Br{\aa}nemark$ implants showed less than the IMZ implants(p>0.05). These results indicate that marginal bone loss around osseointegrated implants occurs within the first 12 months after delivery of prostheses and stabilizes thereafter, so it is necessary to be careful of using dental implants for the first year after delivery of prostheses.

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