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conferenceseries.com
Volume 6, Issue 9 (Suppl) Dentistry 2016
ISSN: 2161-1122 Dentistry, an open access journal Euro Dental Congress 2016
October 24-26, 2016
October 24-26, 2016 Rome, Italy
15th Euro Congress on
Dental & Oral Health
Asmaa Nabil Elboraey, Dentistry 2016, 6:9 (Suppl)
Comparative study between two different implant designs supporting maxillary overdentures: Finite
element analysis (FEA)
Asmaa Nabil Elboraey
National Research Centre, Egypt
Objective: The objectives of this study were to assess the effect of different implant designs and distribution on stresses transmitted
to the supporting structures of maxillary overdentures
Methods: Two finite element models were constructed for V-shaped edentulous maxilla. In the first model; 6 mini-implants of 2.4
mm in diameter and 13 mm in length were placed in the anterior maxilla. In the second model 4 mini-implants of 2.4 mm in diameter
and 13 mm in length were placed in the anterior region and 2 wider implants of 6 mm in diameter and 8 mm in length were placed
in the posterior region. A loading force of 100 N was applied unilaterally and bilaterally in vertical and oblique direction on the first
molar area. Stresses around the implants were estimated by linear static analysis.
Results: The second model showed better results as it reduces stresses exerted on the supporting bone of the maxilla when compared
to model one because the wide diameter implants were close to the applied load and received the maximum exerted stress than
supporting bone. Both implant designs showed acceptable stress distribution within the physiological limits on the bone.
Conclusions: Maxillary overdenture supported by 4 mini-implants in the anterior region and 2 wider implants in posterior region
may result in reducing the stresses exerted on the supporting bone when compared to 6 mini implants in anterior V shaped maxillary
arch.
Biography
Asmaa Nabil Elboraey has completed her PhD in Removable Prosthodontics in September 2013 from Faculty of Dentistry, Ain Shams University. Currently, she
is a Researcher of Prosthodontics at Fixed and Removable Prosthodontic Department, Oral and Dental Research Division, National Research Center, Egypt. Her
academic positions include: Internship in Faculty of Dentistry, Ain Shams University, Egypt (2003-2004); Specialist in National Research Centre, Egypt, 2005-
2009; Assistant Researcher in Fixed and Removable Prosthodontics Department, Oral and Dental Research Division, National Research Center, August 2010;
and Researcher in Fixed and Removable Prosthodontics Department, Oral and Dental Research Division, National Research Center, February 2014 to till date.