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Dent Mater. 2014 Feb;30(2):131-7. doi: 10.1016/j.dental.2013.10.007. Epub 2013 Nov 14.

A novel dental implant abutment with micro-motion capability--development and biomechanical evaluations.

Author information

  • 1Department of Mechanical Engineering, National Taipei University of Technology, No. 1, Sec. 3 Chung-Hsiao E. Rd., Da-an District, Taipei City 106, Taiwan, ROC. Electronic address: yychenbrian@yahoo.com.tw.
  • 2Department of Mechanical Engineering, National Taipei University of Technology, No. 1, Sec. 3 Chung-Hsiao E. Rd., Da-an District, Taipei City 106, Taiwan, ROC. Electronic address: wpchen@ntut.edu.tw.
  • 3Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, No. 1, Chang-De St., Jhong-Jheng District, Taipei City 100, Taiwan, ROC; National Taiwan University Hospital, National Taiwan University, No. 1, Chang-De St., Taipei City 100, Taiwan, ROC. Electronic address: changhh@ntu.edu.tw.
  • 4Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, No. 1, Chang-De St., Jhong-Jheng District, Taipei City 100, Taiwan, ROC. Electronic address: d97422003@ntu.edu.tw.
  • 5Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, No. 1, Chang-De St., Jhong-Jheng District, Taipei City 100, Taiwan, ROC; National Taiwan University Hospital, National Taiwan University, No. 1, Chang-De St., Taipei City 100, Taiwan, ROC. Electronic address: pinlin@ntu.edu.tw.

Abstract

OBJECTIVE:

The aim of this study was to develop a novel dental implant abutment with a micro-motion mechanism that imitates the biomechanical behavior of the periodontal ligament, with the goal of increasing the long-term survival rate of dental implants.

METHODS:

Computer-aided design software was used to design a novel dental implant abutment with an internal resilient component with a micro-motion capability. The feasibility of the novel system was investigated via finite element analysis. Then, a prototype of the novel dental implant abutment was fabricated, and the mechanical behavior was evaluated.

RESULTS:

The results of the mechanical tests and finite element analysis confirmed that the novel dental implant abutment possessed the anticipated micro-motion capability. Furthermore, the nonlinear force-displacement behavior apparent in this micro-motion mechanism imitated the movement of a human tooth. The slope of the force-displacement curve of the novel abutment was approximately 38.5 N/mm before the 0.02-mm displacement and approximately 430 N/mm after the 0.03-mm displacement.

SIGNIFICANCE:

The novel dental implant abutment with a micro-motion mechanism actually imitated the biomechanical behavior of a natural tooth and provided resilient function, sealing, a non-separation mechanism, and ease-of-use.

KEYWORDS:

Abutment; Compression test; Dental implant; Finite element analysis; Micro-motion; Natural tooth; Periodontal ligament

PMID:
24239223
DOI:
10.1016/j.dental.2013.10.007
[PubMed - indexed for MEDLINE]
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