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Updated: May 2, 2026
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Published on: March 7, 2014
3D finite element analysis of immediate loading of single wide versus double implants for replacing mandibular molar
Shrikar R Desai1, I Karthikeyan2, Reetika Gaddale3
1Department of Periodontology and Implantology, H. K. E. Society's S. Nijalingappa Institute of Dental Sciences and Research, Chennai, Tamil Nadu, India.
Purpose:
The purpose of this finite element study was to compare the stresses, strains, and displacements of double versus single implant in immediate loading for replacing mandibular molar.
Materials And Methods:
Two 3D FEM (finite element method) models were made to simulate implant designs. The first model used 5-mm-wide diameter implant to support a single molar crown. The second model used 3.75-3.75 double implant design. Anisotropic properties were assigned to bone model. Each model was analyzed with single force magnitude (100 N) in vertical axis.
Results:
This FEM study suggested that micromotion can be controlled better for double implants compared to single wide-diameter implants. The Von Mises stress for double implant showed 74.44% stress reduction compared to that of 5-mm implant. The Von Mises elastic strain was reduced by 61% for double implant compared to 5-mm implant.
Conclusion:
Within the limitations of the study, when the mesiodistal space for artificial tooth is more than 12.5 mm, under immediate loading, the double implant support should be considered.
