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KMID : 0362419980360060806
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Journal of Korean Academy of Prosthodontics
1998 Volume.36 No. 6 p.806 ~ p.815
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RADIOGRAGHIC STUDY OF MARGINAL BONE LOSS AROUND OSSEOINTEGRATED IMPLANTS AFTER fUNCTIONAL LOADING
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Park Ki-Hyun
Han Dong-Hoo
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Abstract
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Regular radiographic examination has been considered as an essential diagnostic method for the osseointegrated dental implantation. This study investigated the marginal bone loss through the measurement on the periapical radiograph around 46 endosseous dental implants. Marginal bone loss have been observed for 5 years after delivery of prostheses. The results were as follows : 1. According to the experimental periods, average marginal bone loss in total implant was 1.821mm in the first year, 1.833mm in the second, 1.892mm at third, 1.910mm at forth and 1.957mm at fifth after delivery of prostheses(P<0.05). 2. The average bone loss was 1.832mm in the maxillae and 1.819mm in the mandible in three years but there was no significant difference between the upper and lower jaw(P>0.05). 3. The average bone loss was 1.824mm in males and 1.818mm in females in five years but there was no significant difference according to the sex(P>0.05). These results indicate that the most of the alveolar bone loss occur within the first year after delivery of dental prostheses resulting in the exposure of polished neck positions, and the bone level stabilizes at first thread portion of the implant fixtures
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KEYWORD
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marginal bone loss, osseointergrated implant, radiograghic evaluation
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