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. 2024 Sep 6;60(9):1463.
doi: 10.3390/medicina60091463.

Influence of Framework Material and Abutment Configuration on Fatigue Performance in Dental Implant Systems: A Finite Element Analysis

Meryem Erdoğdu  1 , Mehmet Gökberkkaan Demirel  1 , Reza Mohammadi  2 , Neslihan Güntekin  1 , Masoud Ghanbarzadeh Chaleshtori  3
Affiliations

Influence of Framework Material and Abutment Configuration on Fatigue Performance in Dental Implant Systems: A Finite Element Analysis

Meryem Erdoğdu et al. Medicina (Kaunas). .

Abstract

Background and Objectives: This study uses finite element analysis to evaluate the impact of abutment angulation, types, and framework materials on the stress distribution and fatigue performance of dental implant systems. Materials and Methods: Three-dimensional models of maxillary three-unit fixed implant-supported prostheses were analyzed. Abutments with different angles and types were used. Two different framework materials were used. Conducted on implants, a force of 150 N was applied obliquely, directed from the palatal to the buccal aspect, at a specific angle of 30 degrees. The distribution of stress and fatigue performance were then assessed, considering the types of restoration frameworks used and the angles of the abutments in three distinct locations. The simulation aspect of the research was carried out utilizing Abaqus Software (ABAQUS 2020, Dassault Systems Simulation Corp., Johnston, RT, USA). Results: In all models, fatigue strengths in the premolar region were higher than in the molar region. Maximum stress levels were seen in models with angled implants. In almost all models with the zirconia framework, fatigue performance was slightly lower. Conclusions: According to the findings of this study, it was concluded that the use of metal-framework multi-unit restorations with minimum angulation has significant positive effects on the biomechanics and long-term success of implant treatments.

Keywords: fatigue performance; finite element analysis; implant-supported prostheses; von Mises stress.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
The final version of the obtained models.
Figure 2
Figure 2
The key steps of the methodology.
Figure 3
Figure 3
Screw preloading with the bone block fixed along the axes.
Figure 4
Figure 4
Von Mises Stress on the implant. vMS: von Mises Stress; I4: implant in the premolar area; I6: implant in the molar area.
Figure 5
Figure 5
Von Mises Stress on the abutment. vMS: von Mises Stress; A4: abutment in the premolar area; A6: abutment in the molar area.
Figure 6
Figure 6
Von Mises Stress on the cortical bone. vMS: von Mises Stress.
Figure 7
Figure 7
Von Mises Stress on the framework. vMS: von Mises Stress.
Figure 8
Figure 8
Von Mises Stress on the screw. vMS: von Mises Stress; OS4: occlusal screw in the premolar area; OS6: occlusal screw in the molar area; ASC4: abutment screw of cemented restoration in the premolar area; ASC6: abutment screw of cemented restoration in the molar area; ASM4: abutment screw of multi-unit restoration in the premolar area; ASM6: abutment screw of multi-unit restoration in the molar area.
Figure 9
Figure 9
Von Mises Stress on the resin cement. vMS: von Mises Stress; C4: resin cement in the premolar area; C6: resin cement in the molar area.
Figure 10
Figure 10
Fracture cycles of implants in the premolar region. I4: implant in the premolar area; Mu0M: multi-unit 0-degree metal framework; Mu0Z: multi-unit 0-degree zirconia framework; Mu15M: multi-unit 15-degree metal framework; Mu15Z: multi-unit 15-degree zirconia framework; Mu30M: multi-unit 30-degree metal framework; Mu30Z: multi-unit 30-degree zirconia framework; C0M: cemented 0-degree metal framework; C0Z: cemented 0-degree zirconia framework; C15M: cemented 15-degree metal framework; C15Z: cemented 15-degree zirconia framework; C25M: cemented 25-degree metal framework; C25Z: cemented 25-degree zirconia framework.
Figure 11
Figure 11
Fracture cycles of implants in the molar region. I6: implant in the molar area; Mu0M: multi-unit 0-degree metal framework; Mu0Z: multi-unit 0-degree zirconia framework; Mu15M: multi-unit 15-degree metal framework; Mu15Z: multi-unit 15-degree zirconia framework; Mu30M: multi-unit 30-degree metal framework; Mu30Z: multi-unit 30-degree zirconia framework; C0M: cemented 0-degree metal framework; C0Z: cemented 0-degree zirconia framework; C15M: cemented 15-degree metal framework; C15Z: cemented 15-degree zirconia framework; C25M: cemented 25-degree metal framework; C25Z: cemented 25-degree zirconia framework.
Figure 12
Figure 12
Fracture cycles of abutments in the premolar region. A4: abutment in the premolar area; Mu0M: multi-unit 0-degree metal framework; Mu0Z: multi-unit 0-degree zirconia framework; Mu15M: multi-unit 15-degree metal framework; Mu15Z: multi-unit 15-degree zirconia framework; Mu30M: multi-unit 30-degree metal framework; Mu30Z: multi-unit 30-degree zirconia framework; C0M: cemented 0-degree metal framework; C0Z: cemented 0-degree zirconia framework; C15M: cemented 15-degree metal framework; C15Z: cemented 15-degree zirconia framework; C25M: cemented 25-degree metal framework; C25Z: cemented 25-degree zirconia framework.
Figure 13
Figure 13
Fracture cycles of abutments in the molar region. A6: abutment in the molar area; Mu0M: multi-unit 0-degree metal framework; Mu0Z: multi-unit 0-degree zirconia framework; Mu15M: multi-unit 15-degree metal framework; Mu15Z: multi-unit 15-degree zirconia framework; Mu30M: multi-unit 30-degree metal framework; Mu30Z: multi-unit 30-degree zirconia framework; C0M: cemented 0-degree metal framework; C0Z: cemented 0-degree zirconia framework; C15M: cemented 15-degree metal framework; C15Z: cemented 15-degree zirconia framework; C25M: cemented 25-degree metal framework; C25Z: cemented 25-degree zirconia framework.
Figure 14
Figure 14
Fracture cycles of abutment screws in the premolar region. AS4: abutment screw in the premolar area; Mu0M: multi-unit 0-degree metal framework; Mu0Z: multi-unit 0-degree zirconia framework; Mu15M: multi-unit 15-degree metal framework; Mu15Z: multi-unit 15-degree zirconia framework; Mu30M: multi-unit 30-degree metal framework; Mu30Z: multi-unit 30-degree zirconia framework; C0M: cemented 0-degree metal framework; C0Z: cemented 0-degree zirconia framework; C15M: cemented 15-degree metal framework; C15Z: cemented 15-degree zirconia framework; C25M: cemented 25-degree metal framework; C25Z: cemented 25-degree zirconia framework.
Figure 15
Figure 15
Fracture cycles of abutment screws in the molar region. AS6: abutment screw in the molar area; Mu0M: multi-unit 0-degree metal framework; Mu0Z: multi-unit 0-degree zirconia framework; Mu15M: multi-unit 15-degree metal framework; Mu15Z: multi-unit 15-degree zirconia framework; Mu30M: multi-unit 30-degree metal framework; Mu30Z: multi-unit 30-degree zirconia framework; C0M: cemented 0-degree metal framework; C0Z: cemented 0-degree zirconia framework; C15M: cemented 15-degree metal framework; C15Z: cemented 15-degree zirconia framework; C25M: cemented 25-degree metal framework; C25Z: cemented 25-degree zirconia framework.
Figure 16
Figure 16
Fracture cycles of occlusal screws in the premolar region. OS4: occlusal screw in the premolar area; Mu0M: multi-unit 0-degree metal framework; Mu0Z: multi-unit 0-degree zirconia framework; Mu15M: multi-unit 15-degree metal framework; Mu15Z: multi-unit 15-degree zirconia framework; Mu30M: multi-unit 30-degree metal framework; Mu30Z: multi-unit 30-degree zirconia framework; C0M: cemented 0-degree metal framework; C0Z: cemented 0-degree zirconia framework; C15M: cemented 15-degree metal framework; C15Z: cemented 15-degree zirconia framework; C25M: cemented 25-degree metal framework; C25Z: cemented 25-degree zirconia framework.
Figure 17
Figure 17
Fracture cycles of occlusal screws in the molar region. OS6: occlusal screw in the molar area; Mu0M: multi-unit 0-degree metal framework; Mu0Z: multi-unit 0-degree zirconia framework; Mu15M: multi-unit 15-degree metal framework; Mu15Z: multi-unit 15-degree zirconia framework; Mu30M: multi-unit 30-degree metal framework; Mu30Z: multi-unit 30-degree zirconia framework; C0M: cemented 0-degree metal framework; C0Z: cemented 0-degree zirconia framework; C15M: cemented 15-degree metal framework; C15Z: cemented 15-degree zirconia framework; C25M: cemented 25-degree metal framework; C25Z: cemented 25-degree zirconia framework.
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