Biomechanical properties of the body and angle of the sheep mandible under bending loads

Turkozan, N. Y; Mammadov, Ceyhun

doi:10.1111/j.1600-9657.2011.00977.x

Cited by 4 publications

(3 citation statements)

References 31 publications

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“…The three-point bending tests which we performed has previously been only conducted, in the literature, with intact bones and not pre-drilled and implanted ones (20,27,28).…”

Section: Resultsmentioning

confidence: 99%

Biomechanical Properties of the Bone During Implant Placement

Nagy

Práger

Tóth

et al. 2020

Preprint

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Introduction: In our research we examined the biomechanical properties of a bone model. Porcine ribs are used as experimental model. Our objective is to investigate and compare the biomechanical properties of the bone model before and after implant placement. Methods: The bone samples were divided in three groups, Group 1 where ALL-ON-FOUR protocol was used during pre-drilling and placing the implants, Group 2 where ALL-ON-FOUR protocol was used during pre-drilling, and implants were not placed, and Group 3 consisting of intact bones served as a control group. Static and dynamic loading was applied for examining the model samples. Kruskal-Wallis statistical test and as post-hoc test Mann-Whitney U test was performed to analyze experimental results.Results: According to the results of the static loading, there was no significant difference between the implanted and original ribs, however, the toughness values of the bones decreased largely on account of predrilling the bones. The analysis of dynamic fatigue measurements by Kruskal-Wallis test showed significant differences between the intact and predrilled bones.Conclusions: The pre-drilled bone was much weaker in both static and dynamic tests than the natural or implanted specimens. According to the results of the dynamic tests and after a certain loading cycle the implanted samples behaved the same way as the control samples, which suggests that implantation have stabilized the skeletal bone structure, and if even one implant is lost at the implant site during All-On-Four protocol the stabilizing effect of the implants cannot be expected.

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“…The three-point bending tests which we performed has previously been only conducted, in the literature, with intact bones and not pre-drilled and implanted ones (20,27,28).…”

Section: Resultsmentioning

confidence: 99%

Biomechanical Properties of the Bone During Implant Placement

Nagy

Práger

Tóth

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…The three-point bending tests, reported in the literature, were performed only with intact bones [21,28,29] and not pre-drilled and implanted ones, as in this work.…”

Section: Discussionmentioning

confidence: 99%

Biomechanical properties of the bone during implant placement

et al. 2021

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Background In this research the biomechanical properties of a bone model was examined. Porcine ribs are used as experimental model. The objective of this research was to investigate and compare the biomechanical properties of the bone model before and after implant placement. Methods The bone samples were divided in three groups, Group 1 where ALL-ON-FOUR protocol was used during pre-drilling and placing the implants, Group 2 where ALL-ON-FOUR protocol was used during pre-drilling, and implants were not placed, and Group 3 consisting of intact bones served as a control group. Static and dynamic loading was applied for examining the model samples. Kruskal–Wallis statistical test and as a post-hoc test Mann–Whitney U test was performed to analyze experimental results. Results According to the results of the static loading, there was no significant difference between the implanted and original ribs, however, the toughness values of the bones decreased largely on account of predrilling the bones. The analysis of dynamic fatigue measurements by Kruskal–Wallis test showed significant differences between the intact and predrilled bones. Conclusion The pre-drilled bone was much weaker in both static and dynamic tests than the natural or implanted specimens. According to the results of the dynamic tests and after a certain loading cycle the implanted samples behaved the same way as the control samples, which suggests that implantation have stabilized the skeletal bone structure.

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“…Implants can be classified to permanent and degradable ones which are basically Mg-based alloys [4,5]. The biomechanical behavior of the biocompatible implants was examined as well as the forming behavior, mainly under bending conditions [6][7][8]. Nevertheless, the mechanical compatibility often still is a mismatch between implant and natural bone.…”

Section: Introductionmentioning

confidence: 99%

Lightweight titanium/polymer/titanium sandwich sheet for technical and biomedical application

Harhash

Carradò

2014

Materialwissenschaft Werkst

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The development of biocompatible implants is remarkably increased by designing new alloys; mainly on the basis of titanium (Ti) and magnesium (Mg) for permanent and biodegradable alloys, respectively. Polymer-based composite structures were also developed and tested to match the conditions of human bones. In this paper, a sandwich material (SM) approach is introduced to tailor the biomechanical properties, mainly the elastic modulus (E) and the biocompatible properties. The sandwich material is composed of Ti grade 1 (Ti Gr. 1) cover sheets and a polypropylene copolymer (PP-PE) core (PP-polypropylene, PE-polyethylene). An epoxy resin is used as an adhesive agent. This type of sandwich material has the potential to replace commercially used laminates in aerospace and automotive industry in cases of the need of a formable lightweight product, too.The mechanical properties were characterized for different core thicknesses via tensile testing. The mechanical properties exhibited a good matching with the estimated values according to the rule of mixtures. On this basis, sandwich material can be tailored to give the appropriate density, elastic modulus and strength as well by varying the ratio of thickness between the partners. The forming behavior was examined under deep drawing conditions, where the Ti-sandwiches exhibit a good drawing capability; cups can be drawn close to the limits of the mono-metal sheet. 3-[4,5-dimethylthiazol-2-y1]-2,5-diphenytetrazolium bromide (MTT) cell viability assay was used to examine the behavior of human osteosarcoma MG-63 cells on metal and polymer components of sandwich material. Cell viability was much higher for Ti/PP-PE/Ti sandwiches compared to 316L/PP-PE/316L ones.Keywords: Sandwich / composite / titanium / PP-PE polymer / deep drawing / mechanical properties / biocompatibility Die Entwicklung biokompatibler Implantate fokussiert sich derzeit mit der Zielsetzung der Anpassung an die mechanisch-biologischen Anforderungen neben dem Einsatz von Werkstoffen auf keramischer oder auch polymerer Basis weiterhin auf die funktionsgerechte Auslegung metallischer Werkstoffe wie Titan oder Magnesium und ihren Legierungen. In diesem Bericht wird ein Sandwichverbund (sandwich material) vorgestellt, der eine maßgeschneiderte Anpassung der biomechanischen Eigenschaften ermöglicht, hier besonders der mechanischen Eigenschaften -wie den Elastizitätsmodul E -und Berücksichtigung der Biokompatibilität.

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Biomechanical properties of the body and angle of the sheep mandible under bending loads

Abstract: Our results show that the mandibular angle is weaker than the mandibular body under bending loads.

Cited by 4 publications

References 31 publications

Biomechanical Properties of the Bone During Implant Placement

Biomechanical Properties of the Bone During Implant Placement

Biomechanical properties of the bone during implant placement

Lightweight titanium/polymer/titanium sandwich sheet for technical and biomedical application

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