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. 2022 Jan 20:14:11-17.
doi: 10.2147/CCIDE.S346286. eCollection 2022.

Finite Element Analysis of Restored Principal Abutment in Free-End Saddle Partial Denture

Ahmed Mahrous  1 , Ebaa Alagha  1 , Tariq Almutairi  2 , Fahad Albishi  2 , Ibrahim Alfayomi  3 , Nawaf Rasheed  3
Affiliations

Finite Element Analysis of Restored Principal Abutment in Free-End Saddle Partial Denture

Ahmed Mahrous et al. Clin Cosmet Investig Dent. .

Abstract

Purpose: This study analyzed the stress distribution of restored principal abutments in free-end saddle partial dentures.

Materials and methods: The mandibular second premolar was modeled with class II cavity restored with composite resins (Tetric N Ceram and Charisma Smile). Finite element analysis (FEA) was used to examine the stresses under 200-N static load vertically and horizontally and the results were graphically illustrated in the form of von Mises stresses.

Results: The von Mises stress distribution patterns of two different composite resins (Tetric N Ceram and Charisma Smile) were very similar in all modes of loading.

Conclusion: Composite resins with a similar modulus of elasticity in class II cavities with occlusal rest seat preparation had similar stress distributions.

Clinical significance: Nanohybrid composite resin restorations may be a possible method for preparing abutments for receiving elements of the removable partial denture (RPD).

Keywords: RPD; composite resin; finite element analysis; rest seat.

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Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Figures

Figure 1
Figure 1
Tooth simulation into rapid form software.
Figure 2
Figure 2
Finite element model mesh.
Figure 3
Figure 3
Finite element analysis of Tetric N Ceram composite resin.
Figure 4
Figure 4
Finite element analysis of Charisma Smile composite resin.
Figure 5
Figure 5
A column chart of maximum von Mises stresses (vertical and oblique) for the control group and restorative materials.
See this image and copyright information in PMC

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