A comparative study between zirconia and titanium abutments on the stress distribution in parafunctional loading: A 3D finite element analysis

Sivrikaya, Efe Can; Güler, Mehmet Sami; Bekci, Muhammed Latif

doi:10.3233/thc-202305

Cited by 2 publications

(2 citation statements)

References 36 publications

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“…The objective of this work was to conduct a comparative study and mechanically characterize new materials that are potential candidates for dental implantology. The obtained results agree with those of previous studies [ 19 , 22 , 23 ]. Sivrikaya et al found that zirconia abutments showed a lower stress distribution compared to that of titanium abutments, indicating that zirconia abutments may be a better choice for dental implants in patients who exhibit parafunctional habits.…”

Section: Discussionsupporting

confidence: 93%

Static and Fatigue Mechanical Performance of Abutments Materials for Dental Restorations

et al. 2023

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The choice of the proper restorative material is essential for the long-term success of implant-supported rehabilitations. This study aimed to analyze and compare the mechanical properties of four different types of commercial abutment materials for implant-supported restorations. These materials included: lithium disilicate (A), translucent zirconia (B), fiber-reinforced polymethyl methacrylate (PMMA) (C), and ceramic-reinforced polyether ether ketone (PEEK) (D). Tests were carried out under combined bending–compression conditions, which involved applying a compressive force tilted with respect to the abutment axis. Static and fatigue tests were performed on two different geometries for each material, and the results were analyzed according to ISO standard 14801:2016. Monotonic loads were applied to measure static strength, whereas alternating loads with a frequency of 10 Hz and a runout of 5 × 106 cycles were applied for fatigue life estimation, corresponding to five years of clinical service. Fatigue tests were carried out with a load ratio of 0.1 and at least four load levels for each material, and the peak value of the load levels was reduced accordingly in subsequent levels. The results showed that the static and fatigue strengths of Type A and Type B materials were better than those of Type C and Type D. Moreover, the fiber-reinforced polymer material, Type C, showed marked material–geometry coupling. The study revealed that the final properties of the restoration depended on manufacturing techniques and the operator’s experience. The findings of this study can be used to inform clinicians’ choice of restorative materials for implant-supported rehabilitation, considering factors such as esthetics, mechanical properties, and cost.

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Section: Discussionsupporting

confidence: 93%

Static and Fatigue Mechanical Performance of Abutments Materials for Dental Restorations

et al. 2023

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“…They used the same two dental implants as in our study, but few publications have analysed the parafunctional forces over implants [29]. They focus on abutment material or occlusal splint devices [30,31]. Studies that assess the mechanical response of the bone-implant interface in bruxist patients are needed.…”

Section: Introductionmentioning

confidence: 99%

Bone Loss in Bruxist Patients Wearing Dental Implant Prostheses: A Finite Element Analysis

Oliveros-López

Castillo-Oyagüe

Serrera-Figallo

et al. 2020

Metals

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Bruxism is an unconscious, involuntary and sustained motor activity that results in excessive teeth grinding or jaw clenching that could affect patients’ implants and rehabilitations. The aetiology for bruxism remains unknown, but it is known to involve multiple factors. The literature lacks studies on the possible effect of implant morphology on the resistance of the bone-implant osseointegrated interface when bruxism is present. Our objective is to assess the mechanical response of the bone-implant interface in bruxist patients whose implant prostheses are subjected to parafunctional cyclic loading over a simulated period of 10 years. A comparison was carried out between two implant types (M-12 and Astra Tech), and a pattern of bone loss was established considering both the stress state and the cortical bone surface loss as the evaluation criteria. Numerical simulation techniques based on the finite element analysis method were applied in a dynamic analysis of the received forces, together with a constitutive model of bone remodelling that alters the physical properties of the bone. The simulated cortical bone surface loss at the implant neck area was 8.6% greater in the Astra implant than in the M-12 implant. Compared to the M-12 implant, the higher sustained stress observed over time in the Astra implant, together with the greater cortical bone surface loss that occurred at its neck area, may be related to the major probability of failure of the prostheses placed over Astra implants in bruxist patients.

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A comparative study between zirconia and titanium abutments on the stress distribution in parafunctional loading: A 3D finite element analysis

Cited by 2 publications

References 36 publications

Static and Fatigue Mechanical Performance of Abutments Materials for Dental Restorations

Static and Fatigue Mechanical Performance of Abutments Materials for Dental Restorations

Bone Loss in Bruxist Patients Wearing Dental Implant Prostheses: A Finite Element Analysis

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