LOGIN
 
Share Page:
Back

Volume 25 , Issue 4
July/August 2010

Pages 706714


Effects of Cortical Bone Thickness and Implant Length on Bone Strain and Interfacial Micromotion in an Immediately Loaded Implant

Ming-Gene Tu, DDS, PhD/Jui-Ting Hsu, PhD/Lih-Jyh Fuh, DDS, PhD/ Dan-Jae Lin, PhD/Heng-Li Huang, PhD


PMID: 20657865

Purpose: The aim of this study was to evaluate the effects of cortical bone thickness and implant length on strain in the surrounding bone and micromotion at the bone-implant interface in single immediately loaded implants. Materials and Methods: Experiments with rapid prototyping technique and finite element simulations were performed to evaluate bone strain and micromotion at the bone-implant interface. Implants (13-mm long) were embedded into models with three thicknesses of cortical bone (0.5, 1.7, and 3.4 mm), and implants with different lengths (11.5 and 15.0 mm) were inserted into models with 1.7 mm of thickness of cortical bone. Vertical and lateral loads of 130 N were applied to the models. Results: On lateral loading, the strains were highly concentrated on one side of the mandible in both experimental and finite element models. Sliding and gap distances were reduced when the cortical bone was thicker and when the implant was longer. Conclusion: Placement of a longer implant into thicker cortical bone will result in reduced sliding and gap distances. However, bone strain is influenced more by the cortical bone thickness than by the implant length for single immediately loaded implants. Int J Oral Maxillofac Implants 2010;25:706714

Key words: cortical bone thickness, dental implants, finite element analysis, immediate loading, implant length


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.

 

© 2014 Quintessence Publishing Co, Inc JOMI Home
Current Issue
Ahead of Print
Archive
Author Guidelines
About
Accepted Manuscripts
Submission Form
Submit
Reprints
Permission
Advertising
Quintessence Home
Terms of Use
Privacy Policy
About Us
Contact Us
Help