Stochastic Multi-Scale Finite Element Analysis of the Drilling Force of Trabecular Bone during Oral Implant Surgery

Daisuke Tawara, Naoki Takano, Hideaki Kinoshita, Satoru Matsunaga, Shinichi Abe

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To avoid procedural accidents during/after oral implant surgery in a jawbone (e.g., perforation of the lingual side due to an inadequate drilling angle or scratching the mandibular canal), it is important for dentists to develop skilled drilling techniques. We have developed a stochastic multi-scale prediction of apparent elastic moduli of the jawbone with modified first-order perturbation-based stochastic homogenization in which individual differences of drilling properties relating to bone quality can be evaluated with a force-sensitive device. To establish drilling properties in various types of jawbone and the perforation case, and for drill diameters, we propose an original computational method that avoids procedural accidents by defining the drilling angle as a parameter and quantifying individual differences and the inner distribution of bone quality in several jawbones as a drilling force. Three samples demonstrated that drilling forces changed depending on the trabecular structure, with the drilling force changing little around the mandibular canal and increasing just before perforation. Drilling force also depended on the drill diameter but did not always match its size. Estimated drilling forces of the expected value and 50% and 90% probability results suggested prominent differences in drilling properties. This information enables dentists to develop a skillful surgical technique.

Original languageEnglish
Article number1650075
JournalInternational Journal of Applied Mechanics
Volume8
Issue number6
DOIs
Publication statusPublished - 2016 Sep 1

Fingerprint

Surgery
Drilling
Bone
Finite element method
Canals
Accidents
Computational methods
Elastic moduli

Keywords

  • bone quality
  • drilling force
  • finite element analysis
  • mandibular trabecular bone
  • Oral implant
  • stochastic homogenization method

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Stochastic Multi-Scale Finite Element Analysis of the Drilling Force of Trabecular Bone during Oral Implant Surgery. / Tawara, Daisuke; Takano, Naoki; Kinoshita, Hideaki; Matsunaga, Satoru; Abe, Shinichi.

In: International Journal of Applied Mechanics, Vol. 8, No. 6, 1650075, 01.09.2016.

Research output: Contribution to journalArticle

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