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KMID : 0362419960340010070
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Journal of Korean Academy of Prosthodontics
1996 Volume.34 No. 1 p.70 ~ p.84
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Radiographic evaluatin of bone change around osseointegrated implants in partially edentulous jaws with fixed tissue-intergated prostheses
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Yang Soon-Bong
Han Dong-Hoo
Yang Ja-Ho
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Abstract
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This paper reports marginal bone loss around osseointegrated implants after loading in partially edentulous patients in dental hospital, Yonsei University. Two types of implants (BranemarkTM, IMZTM) 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. @ES The results were as follows ; @EN 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 Branemark 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 Branemark implants but during the next the Branemark 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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