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J Periodontal Implant Sci. 2017 Aug;47(4):251-262. doi: 10.5051/jpis.2017.47.4.251. Epub 2017 Aug 28.

Effects of implant tilting and the loading direction on the displacement and micromotion of immediately loaded implants: an .

Journal of periodontal & implant science

Tsutomu Sugiura, Kazuhiko Yamamoto, Satoshi Horita, Kazuhiro Murakami, Sadami Tsutsumi, Tadaaki Kirita

Affiliations

  1. Department of Oral and Maxillofacial Surgery, Nara Medical University, Nara, Japan.
  2. Applied Electronics Laboratory, Kanazawa Institute of Technology, Tokyo, Japan.

PMID: 28861289 PMCID: PMC5577443 DOI: 10.5051/jpis.2017.47.4.251

Abstract

PURPOSE: The purpose of this study was to investigate the effects of implant tilting and the loading direction on the displacement and micromotion (relative displacement between the implant and bone) of immediately loaded implants by

METHODS: Six artificial bone blocks were prepared. Six screw-type implants with a length of 10 mm and diameter of 4.3 mm were placed, with 3 positioned axially and 3 tilted. The tilted implants were 30° distally inclined to the axial implants. Vertical and mesiodistal oblique (45° angle) loads of 200 N were applied to the top of the abutment, and the abutment displacement was recorded. Nonlinear finite element models simulating the

RESULTS: The abutment displacement was greater under oblique loading than under axial loading and greater for the tilted implants than for the axial implants. The

CONCLUSIONS: Tilted implants may have a lower maximum extent of micromotion than axial implants under mesiodistal oblique loading. The maximum micromotion values were strongly influenced by the loading direction. The maximum micromotion values did not reflect the abutment displacement values.

Keywords: Dental implants; Finite element analysis; Immediate dental implant loading

Conflict of interest statement

Conflict of Interest: No potential conflict of interest relevant to this article was reported.

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