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Effects of thread features in osseo-integrated titanium implants using a statistics-based finite element method
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Ausiello, Pietro, Franciosa, Pasquale, Martorelli, Massimo and Watts, David C. (2012) Effects of thread features in osseo-integrated titanium implants using a statistics-based finite element method. Dental Materials, 28 (8). pp. 919-927. doi:10.1016/j.dental.2012.04.035 ISSN 0109-5641.
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Official URL: http://dx.doi.org/10.1016/j.dental.2012.04.035
Abstract
Objective
To investigate the influence of implant design factors in terms of bone integrity and implant stability.
Materials and methods
A 3D parametric CAD model was developed. Then, once domain settings and boundary conditions were defined, a 3D FEM model was created. To simulate the physical interaction at the bone–implant interface, identity pairs were introduced. After generating different design scenarios with a DOE approach, the most significant design factors were obtained.
Results
This study showed that the geometry of the screw thread highly influenced the implant stability. In particular the degree of bone damage became minimal when adopting 0.40 mm for the thread width and 0.05 mm for the thickness.
Significance
Thread width and thickness play a crucial role to reduce induced stresses and damage in bone. Considering these preliminary results, future improvements should focus on investigating also two-factor and higher interactions to better understand the implant loading mechanism.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Dental Materials | ||||
Publisher: | Elsevier | ||||
ISSN: | 0109-5641 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | 28 | ||||
Number: | 8 | ||||
Page Range: | pp. 919-927 | ||||
DOI: | 10.1016/j.dental.2012.04.035 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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