Structural optimization of dental restorations using the principle of adaptive growth

Guillaume Couegnat, Jonathan E. Cooper, Siu L. Fok, Alison J E Qualtrough

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fracture of restored teeth is a problem in restorative dentistry since it has been estimated that 92 percent of fractured teeth have been previously restored. In a restored tooth, the stresses that occur at the tooth-restoration interface during loading could become large enough to fracture the tooth and/or restoration. The tooth preparation process for a dental restoration is therefore a classical optimization problem: tooth reduction must be minimized to preserve tooth tissue whilst stress levels must be kept low to avoid fracture of the restored tooth. The objective of the present study was to propose alternative optimized designs for a second upper premolar cavity preparation by means of structural shape optimization based on the finite element method and biological adaptive growth. Restored tooth models using the optimized cavity shapes exhibited significant reduction of stresses along the tooth-restoration interface. In the best case, the maximum stress value was reduced by more than 50 percent.

Original languageEnglish (US)
Title of host publicationProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
PublisherAmerican Society of Mechanical Engineers
Pages495-503
Number of pages9
ISBN (Print)0791841731, 9780791841730
DOIs
StatePublished - 2004
EventProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004 - Manchester, United Kingdom
Duration: Jul 19 2004Jul 22 2004

Publication series

NameProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
Volume2

Other

OtherProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004
CountryUnited Kingdom
CityManchester
Period7/19/047/22/04

Keywords

  • Adaptive growth
  • Dental restorations
  • Finite element
  • Structural optimization

Fingerprint Dive into the research topics of 'Structural optimization of dental restorations using the principle of adaptive growth'. Together they form a unique fingerprint.

Cite this