Implant stability and bone remodeling up to 84 days of implantation with an initial static strain. An in vivo and theoretical investigation

Anders Halldin, Yohei Jinno, Silvia Galli, Mats Ander, Magnus Jacobsson, Ryo Jimbo

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Objectives: When implants are inserted, the initial implant stability is dependent on the mechanical stability. To increase the initial stability, it was hypothesized that bone condensation implants will enhance the mechanical stability initially and that the moderately rough surface will further contribute to the secondary stability by enhanced osseointegration. It was further hypothesized that as the healing progresses the difference in removal torque will diminish. In addition, a 3D model was developed to simulate the interfacial shear strength. This was converted to a theoretical removal torque that was compared to the removal torque obtained in vivo. Material and methods: Condensation implants, inducing bone strains of 0.015, were installed into the left tibia of 24 rabbits. Non-condensation implants were installed into the right tibia. All implants had a moderately rough surface. The implants had an implantation time of 7, 28, or 84 days before the removal torque was measured. The interfacial shear strength at different healing time was estimated by the means of finite element method. Results: At 7 days of healing, the condensation implant had an increased removal torque compared to the non-bone-condensation implant. At 28 and 84 days of healing, there was no difference in removal torque. The simulated interfacial shear strength ratios of bone condensation implants at different implantation time were in line with the in vivo data. Conclusions: Moderately rough implants that initially induce bone strain during installation have increased stability during the early healing period. In addition, the finite element method may be used to evaluate differences in interlocking capacity.

本文言語英語
ページ(範囲)1310-1316
ページ数7
ジャーナルClinical Oral Implants Research
27
10
DOI
出版ステータス出版済み - 10 1 2016
外部発表はい

All Science Journal Classification (ASJC) codes

  • 口腔外科

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