Occlusal loading during biting from an experimental and simulation point of view

Röhrle, Oliver; Saini, Harnoor; Ackland, David C.

doi:10.1016/j.dental.2017.09.005

Cited by 35 publications

(27 citation statements)

References 107 publications

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“…us, this area was chosen as the ROI in our model. In addition, in our modeling, the maximum stress was mainly distributed on the cortical bone (Figure 2(b)), which is consistent with previous studies [42,[44][45][46]. erefore, the stress on the cortical bone of the ROI (Figure 2(c)) was analyzed.…”

Section: Selection Of the Region Of Interest (Roi) Of The Alveolar Bone And Abutmentsupporting

confidence: 89%

Relationships of Stresses on Alveolar Bone and Abutment of Dental Implant from Various Bite Forces by Three-Dimensional Finite Element Analysis

Kang

Wang

et al. 2020

BioMed Research International

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Occlusal trauma caused by improper bite forces owing to the lack of periodontal membrane may lead to bone resorption, which is still a problem for the success of dental implant. In our study, to avoid occlusal trauma, we put forward a hypothesis that a microelectromechanical system (MEMS) pressure sensor is settled on an implant abutment to track stress on the abutment and predict the stress on alveolar bone for controlling bite forces in real time. Loading forces of different magnitudes (0 N–100 N) and angles (0–90°) were applied to the crown of the dental implant of the left central incisor in a maxillary model. The stress distribution on the abutment and alveolar bone were analyzed using a three-dimensional finite element analysis (3D FEA). Then, the quantitative relation between them was derived using Origin 2017 software. The results show that the relation between the loading forces and the stresses on the alveolar bone and abutment could be described as 3D surface equations associated with the sine function. The appropriate range of stress on the implant abutment is 1.5 MPa–8.66 MPa, and the acceptable loading force range on the dental implant of the left maxillary central incisor is approximately 6 N–86 N. These results could be used as a reference for the layout of MEMS pressure sensors to maintain alveolar bone dynamic remodeling balance.

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Section: Selection Of the Region Of Interest (Roi) Of The Alveolar Bone And Abutmentsupporting

confidence: 89%

Relationships of Stresses on Alveolar Bone and Abutment of Dental Implant from Various Bite Forces by Three-Dimensional Finite Element Analysis

Kang

Wang

et al. 2020

BioMed Research International

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“…Such laboratory static loading tests would generate a crack front with a very high stored energy which runs rapidly through the bulk of the restoration with little resistance 32) . Similarly, in this study, the loading values experienced by the composite bilayered structures were also high and reached about 2,500 N, while in reality, the human teeth could experience 500-800 N of maximal unilateral occlusal force 33,34) . Bear in mind that teeth are subjected to more complicated loading, which includes wedging through the cusps as well as compressive loads.…”

Section: Thickness Of the Base Composite And Surface Pfc Materialssupporting

confidence: 71%

Bonding interface affects the load-bearing capacity of bilayered composites

et al. 2019

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This study evaluated the effect of material type, thickness and composite-composite interfacial adhesion on the load-bearing capacity of the bilayered composite structures. Bilayered cylindrical specimens (diameter=7 mm, height=5 mm) were prepared having three surface-layer thicknesses (1, 1.5, 2 mm) of Gaenial Posterior to overlay base-composites [everX Posterior or Smart Dentin Replacement (SDR)]. Adhesion between surface and base composite-layers was based on an O2-inhibited layer for optimal-adhesion (OA) or polished surface for deteriorated-adhesion (DA). Specimens (n=10) were light-cured before static-loading with a steel-ball until fracture. Stress distribution in the same designs of mechanical test was calculated by finite element analysis (FEA). Static-loading demonstrated that in both base materials, thickness and adhesion had an effect on load-bearing capacity (p<0.05). FEA showed less strain distribution for everX groups than SDR.With OA, everX Posterior demonstrated higher load-bearing capacity even with thin surface-composite layer. DA made the load-bearing capacity more sensitive to surface-layer thickness.

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“…The range of human biting forces is 50–300 N in normal chewing as opposed to 175–800 N for maximum voluntary biting forces [19,20,21]. These values are highly dependent on the measurement tools, mainly strain gauges, piezo-electric sensors, and pressure sheets.…”

Section: Discussionmentioning

confidence: 99%

Load-Bearing Capacity of Zirconia Crowns Screwed to Multi-Unit Abutments with and without a Titanium Base: An In Vitro Pilot Study

et al. 2019

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The static and dynamic load-bearing capacities and failure modes of zirconia crowns screwed to multi-unit abutments (MUAs) with and without a titanium base (T-base) were determined. Thirty-six monolithic zirconia crowns screwed to straight MUAs torqued to laboratory analogs (30 Ncm) were assigned to two groups (n = 18). In group A, the zirconia crowns were screwed directly to the MUAs; in group B, the zirconia crowns were cemented to the T-base and screwed to the MUAs. All specimens were aged in 100% humidity (37 °C) for one month and subjected to thermocycling (20,000 cycles). Afterwards, the specimens underwent static and dynamic loading tests following ISO 14801. The failure modes were evaluated by stereomicroscopy (20×). There was an unequivocally similar trend in the S-N plots of both specimen groups. The load at which the specimens survived 5,000,000 cycles was 250 N for both groups. Group A failed mainly within the metal, and zirconia failure occurred only at a high loading force. Group B exhibited failure within the metal mostly in conjunction with adhesive failure between the zirconia and T-base. Zirconia restoration screwed directly to an MUA is a viable option, but further studies with larger sample sizes are warranted.

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Occlusal loading during biting from an experimental and simulation point of view

Cited by 35 publications

References 107 publications

Relationships of Stresses on Alveolar Bone and Abutment of Dental Implant from Various Bite Forces by Three-Dimensional Finite Element Analysis

Relationships of Stresses on Alveolar Bone and Abutment of Dental Implant from Various Bite Forces by Three-Dimensional Finite Element Analysis

Bonding interface affects the load-bearing capacity of bilayered composites

Load-Bearing Capacity of Zirconia Crowns Screwed to Multi-Unit Abutments with and without a Titanium Base: An In Vitro Pilot Study

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