Home Subscription Services

World Journal of Orthodontics
WJO Home Page
About the Editor
Editorial Board
Reprints / Articles
Quintessence Publishing: Journals: ORTHODONTICS
The Art and Practice of Dentofacial Enhancement

Formerly World Journal of Orthodontics

Edited by
Rafi Romano, DMD, MSc (Editor-in-Chief)

ISSN 2160-2999 (print) / ISSN 2160-3006 (online)

Visit the ORTHODONTICS: The Art and Practice of Dentofacial Enhancement Facebook page

Yearbook 2012
Volume 13 , Issue 1

Share Abstract:

Evaluation of the stresses generated by altering the bracket mesh base design in the bracket-cement-tooth continuum using the finite element method of stress analysis

Tarulatha R. Shyagali, MDS/Chandralekha Basavaraj Urs, MDS/Shashikala Subramai, MDS/Deepak P. Bhayya, MDS

Aim: To analyze the influence of bracket base mesh geometry on the stresses generated in the tooth-cement-bracket continuum by a shear/peel load case and to compare the stress generated by three different loads (masticatory, peel, and twisting) on the bracket mesh base by employing a three-dimensional (3D) finite element computer model. Methods: A validated 3D finite element model of the bracket-cement-tooth system was constructed consisting of 40,536 nodes and 49,201 finite elements. Results: An increase in the diameter of the bracket mesh base wire resulted in a decrease in the stress at the enamel and cement. Increase in wire spacing (200 to 500 mm) increased the stresses in the enamel and cement at all wire diameters, but within the impregnated wire mesh, the major stress decreased with the increase in the wire spacing. Peel load produced comparatively less stress on enamel than masticatory and twisting force. Conclusion: Alteration in mesh spacing and wire diameter influences the magnitude and distribution of stresses within the bracket-cement-tooth continuum. Peel load and twisting load are best to debond the bracket since they produced minimal stress on the enamel, which is suggestive of lower chances of enamel damage. ORTHODONTICS (CHIC) 2012;13:e66e75.

Key words: bracket mesh base, finite element method, peel load, stress

Full Text PDF File | Order Article


Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files.
This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site
to get your copy of Adobe Acrobat Reader.
  © 2022 Quintessence Publishing Co Inc

Home | Subscription Services | Books | Journals | Multimedia | Events | Blog
Terms of Use | Privacy Policy | About Us | Contact Us | Advertising | Help | Sitemap | Catalog