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CHUNG, S. H.; HEO, S. J.; KOAK, J. Y.; KIM, S. K.; LEE, J. B.; HAN, J. S.; HAN, C. H.; RHYU, I. C.; LEE, S. J.
Journal of oral rehabilitation, March 2008, Letnik: 35, Številka: 3Journal Article
summary The purpose of this study was to evaluate the geometry and surface characteristics of osseointegration after functional loading by radiographic, periodontal and histomorphometric analyses. We analysed three groups of implants with different geometry and surface characteristics using experimental dogs. The control group received Brånemark implants (group 1). Group 2 and group 3 implants each had a 0·5‐mm pitch height but differed in surface characteristics. Group 2 implants were machine surfaced and group 3 implants were thermally oxidized at 800 °C for 2 h in a pure oxygen atmosphere. For these experiments, which used a total of four healthy beagle dogs, the implants were randomly installed into the extracted first, second and third premolar positions. The animals received radiographic and clinical periodontal examinations at 6 and 12 months post‐loading, and were then killed for histomorphometric analysis. The radiographic analysis showed that mean crestal bone resorption in the control group was greater than that observed in the experimental groups (P < 0·05). The percentage of bone‐to‐implant contact for group 3 (83·7%) was significantly higher than in groups 1 (74·4%) and 2 (75·0%) (P < 0·05). Overall, implant geometry and surface treatment affected the rate of crestal bone resorption and bone healing surrounding the dental implants.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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