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Evaluation of Micromovements and Stresses around Single Wide-Diameter and Double Implants for Replacing Mandibular Molar: A Three-Dimensional FEA.

Desai SR, Karthikeyan I, Singh R - ISRN Dent (2012)

Bottom Line: Purpose.Each model was analyzed with a single force magnitude of 70 N in oblique axis in three locations.Results.

View Article: PubMed Central - PubMed

Affiliation: Department of Periodontology & Implantology, H.K.E. Society's S. Nijalingappa Institute of Dental Sciences and Research, Gulbarga, PIN 585 105, India.

ABSTRACT
Purpose. The purpose of this finite element study was to compare stresses, strains, and displacements of double versus single implant, in immediate loading for replacing mandibular molar. Materials and Methods. Two 3D FEM models were made to simulate implant designs. The first model used 6 mm wide-diameter implant to support a single molar crown. The second model used 3.75-3.75 double implant design. Each model was analyzed with a single force magnitude of 70 N in oblique axis in three locations. Results. This FEM study suggested that micromotion can be well controlled by both double implants and 6 mm single wide-diameter implant. The Von Mises stress for double implant had 31%-43% stress reduction compared to the 6 mm implant. Conclusion. Within the limitations of the paper, when the mesiodistal space for artificial tooth is more than 12.5 mm, under immediate loading, the double implant support should be considered.

No MeSH data available.


Related in: MedlinePlus

Von Mises stress at central fossa-70N (15°) oblique to vertical axes.
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fig3: Von Mises stress at central fossa-70N (15°) oblique to vertical axes.

Mentions: The total deformation was 0.004 mm for double implants and 0.00357 mm for 6 mm (Figure 2 and Figure 8). The Von Mises stress was 23.34 MPa for 6 mm wide implants, and the least value was recorded for double implants (16.10 MPa) (Figure 3 and Figure 9).


Evaluation of Micromovements and Stresses around Single Wide-Diameter and Double Implants for Replacing Mandibular Molar: A Three-Dimensional FEA.

Desai SR, Karthikeyan I, Singh R - ISRN Dent (2012)

Von Mises stress at central fossa-70N (15°) oblique to vertical axes.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3313580&req=5

fig3: Von Mises stress at central fossa-70N (15°) oblique to vertical axes.
Mentions: The total deformation was 0.004 mm for double implants and 0.00357 mm for 6 mm (Figure 2 and Figure 8). The Von Mises stress was 23.34 MPa for 6 mm wide implants, and the least value was recorded for double implants (16.10 MPa) (Figure 3 and Figure 9).

Bottom Line: Purpose.Each model was analyzed with a single force magnitude of 70 N in oblique axis in three locations.Results.

View Article: PubMed Central - PubMed

Affiliation: Department of Periodontology & Implantology, H.K.E. Society's S. Nijalingappa Institute of Dental Sciences and Research, Gulbarga, PIN 585 105, India.

ABSTRACT
Purpose. The purpose of this finite element study was to compare stresses, strains, and displacements of double versus single implant, in immediate loading for replacing mandibular molar. Materials and Methods. Two 3D FEM models were made to simulate implant designs. The first model used 6 mm wide-diameter implant to support a single molar crown. The second model used 3.75-3.75 double implant design. Each model was analyzed with a single force magnitude of 70 N in oblique axis in three locations. Results. This FEM study suggested that micromotion can be well controlled by both double implants and 6 mm single wide-diameter implant. The Von Mises stress for double implant had 31%-43% stress reduction compared to the 6 mm implant. Conclusion. Within the limitations of the paper, when the mesiodistal space for artificial tooth is more than 12.5 mm, under immediate loading, the double implant support should be considered.

No MeSH data available.


Related in: MedlinePlus