COMPARISON BETWEEN $TIUNITE^{TM}$ AND ANOTHER OXIDIZED IMPLANT USING THE RABBIT TIBIA MODEL
여인성, 양재호, 이재봉, 김성훈, 한중석,
소속 상세정보
여인성 ( Yeo In-Sung ) - 서울대학교 치과대학 치과보철학교실
양재호 ( Yang Jae-Ho ) - 서울대학교 치과대학 치과보철학교실
이재봉 ( Lee Jai-Bong ) - 서울대학교 치과대학 치과보철학교실
김성훈 ( Kim Seong-Hun ) - 서울대학교 치과대학 치과보철학교실
한중석 ( Han Jung-Suk ) - 서울대학교 치과대학 치과보철학교실
KMID : 0362420070450030339
Abstract
Statement of problem. Various anodic oxidation techniques can be applied to dental implant surfaces. But the condition for optimal anodized surfaces has not been described yet.
Purpose. The purpose of this investigation was to compare an implant that was oxidized by another method with TiUnite^{TM} through resonance frequency analysis and histomorphometry.
Material and methods. Turned (control), TiUnite^{TM} and another oxidized fixtures, which used Ca^{2+} solution for anodic oxidation, were placed in the tibiae of 5 New Zealand White rabbits. The bone responses were evaluated and compared by consecutive resonance frequency analysis once a week for 6 weeks and histomorphometry after a healing period of 6 weeks.
Results. At the first week, both oxidized implants showed significantly higher implant stability quotient (ISQ) values than the control. No significant differences in resonance frequency analysis were found between the two oxidized groups for 6 weeks. The means and standard deviations of bone-to-implant contact (BIC) ratios were 71.0{pm}4.2 for TiUnite^{TM}, 67.5{pm}10.3 for the Ca^{2+}-based oxidation fixture, 22.8{pm}6.5 for the control. Both oxidized implants were significantly superior in osseointegration to the turned one. There was, however, no statistically significant difference between the two oxidized implants.
Conclusion. TiUnite^{TM} and the Ca^{2+}-based oxidation fixture showed superior early bone response than the control with respect to resonance frequency analysis and histomorphometry. No significant differences between the oxidized groups, however, were found in this investigation using the rabbit tibia model.
키워드
Anodic oxidation;Surface modification;Dental implant;Resonance frequency analysis;Histomorphometry
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