Crestal module design optimization of dental implants: finite element analysis and in vivo studies

Dávila, Eric; Ortiz-Hernández, Mónica; Pérez, Román A.; Herrero-Climent, Mariano; Cerrolaza, M.; Gil, F.J.

doi:10.1007/s10856-019-6291-1

Cited by 17 publications

(10 citation statements)

References 52 publications

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“…Nevertheless, only a few studies to date were able to apply and compare the predictions that can be derived by simulating the tissues of the human body. Dávila et al [14] reported the stress generated at the marginal bone using 3D FEA models with varying implant neck design and analyzed how such predictions compared to in vivo animal studies by placing the implants with the different designs in New Zealand rabbits.…”

Section: Discussionmentioning

confidence: 99%

Effect of implant fixtures with blood pocket designed platforms on crestal bone

Kang

Jung

et al. 2022

Oral Biol Res

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The purpose of this study was to investigate the impact of an implant with a blood pocket designed platform on the crestal bone by analyzing the stress distribution upon simulated application of occlusal forces and assessing its clinical role in marginal bone loss surrounding the implant. Stress exerted on the cortical and cancellous bones of three different platform type implants (URIS, TSIII, and Astra EV) were analyzed using finite element analysis (FEA). A load of 150 N was applied at 0°, 45°, and 90° angles to the long axis of each implant, and marginal bone loss in the implanted URIS fixtures (blood pocket designed platform) after immediate and delayed loading was measured. FEA showed that the stress generated on the fixture upon loading of the URIS implant was lower than that of the other two implants. The URIS implant also exerted the lowest stress on the cortical bone upon application of vertical pressure at an angle of 0° to the long axis of the fixture. The mean marginal bone loss in the alveolar bone was 1.01±0.33 mm and 0.46±0.30 mm upon immediate and delayed loading, respectively. FEA also indicated that implants with blood pocket designed platforms exhibited better stress distribution in the implant fixture and cortical bone under vertical pressure when compared to the fixtures of other designs. The marginal bone loss observed one year after loading of the URIS implant in the current study was lower than that reported previously.

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Section: Discussionmentioning

confidence: 99%

Effect of implant fixtures with blood pocket designed platforms on crestal bone

Kang

Jung

et al. 2022

Oral Biol Res

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“…In addition, the development of mathematical models to study bone mechanoregulatory processes helps to predict changes in bone morphology and density based on various mechanical stimuli [30]. Numerical simulations were compared with in vivo studies to indirectly correlate the stress level with apposed/reabsorbed bone tissue [31][32][33]. Some researchers, moving from the peri-implant density distribution, made an estimation of the bone remodelled tissue [34,35] and, in a recent study, only of internal bone remodelling, i.e., the change in the microstructure and density was taken into account as a remodelling process [36].…”

Section: Introductionmentioning

confidence: 99%

A Parametric Study on a Dental Implant Geometry Influence on Bone Remodelling through a Numerical Algorithm

2021

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To ensure the long-term success of a dental implant, it is imperative to understand how chewing loads are transferred through the implant prosthetic components to the surrounding bone tissue. The stress distribution depends on several factors, such as load type, bone–implant interface, shape and materials of the fixture and quality and quantity of the bone. These aspects are of fundamental importance to ensure implant stability and to evaluate the remodelling capacity of the bone tissue to adapt to its biomechanical environment. A bone remodelling algorithm was formulated by the authors and implemented by means of finite element simulations on four different implants with several design characteristics. Internal bone microstructure and density, apposition/resorption of tissue and implant stability were evaluated over a period of 12 months, showing the influence of the geometry on bone tissue evolution over time. Bone remodelling algorithms may be a useful aid for clinicians to prevent possible implant failures and define an adequate implant prosthetic rehabilitation for each patient. In this work, for the first time, external bone remodelling was numerically predicted over time.

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“…The macro design of a dental implant is made up of different features that could influence the primary stability. Therefore, the shape of the thread, the type of implant body, and even the shoulder design have been studied [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Relevant Design Aspects to Improve the Stability of Titanium Dental Implants

Herrero-Climent¹,

López-Jarana²,

Lemos

et al. 2020

Materials

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Post-extractional implants and immediate loading protocols are becoming much more frequent in everyday clinical practice. Given the existing literature about tapered implants, the objective of this paper was to understand whether implant shape had a direct influence on the results of the insertion torque (IT) and implant stability quotient (ISQ). Seven tapered implant prototypes were developed and distributed into three groups and compared with a control cylindrical implant—VEGA by Klockner Implant System. The implants were inserted into bovine bone type III according to Lekholm and Zarb Classification. The sample size was n = 30 for the three groups. Final IT was measured with a torquemeter, and the ISQ was measured with Penguin Resonance Frequency Analysis (RFA). Modifications done to the Prototype I did not reveal higher values of the ISQ and IT when compared to VEGA. In the second group, when comparing the five prototypes (II–VI) with VEGA, it was seen that the values of the ISQ and IT were not always higher, but there were two values of the ISQ that were statistically significantly higher with the 4.0 mm diameter Prototypes II (76.3 ± 6.1) and IV (78 ± 3.7). Prototype VII was the one with higher and significant values of the ISQ and IT. In both diameters and in both variables, all differences were statistically significant enough to achieve the higher values of primary stability values (IT and ISQ). Given the limitations of this study, it can be concluded that when there is an increase of the diameter of the implant and body taper, there is an increase of the ISQ and IT, showing that the diameter of the implant is an important criteria to obtain higher values of primary stability.

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Crestal module design optimization of dental implants: finite element analysis and in vivo studies

Cited by 17 publications

References 52 publications

Effect of implant fixtures with blood pocket designed platforms on crestal bone

Effect of implant fixtures with blood pocket designed platforms on crestal bone

A Parametric Study on a Dental Implant Geometry Influence on Bone Remodelling through a Numerical Algorithm

Relevant Design Aspects to Improve the Stability of Titanium Dental Implants

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