Polyether ether ketone in protocol bars: Mechanical behavior of three designs

Carvalho, Geraldo Alberto Pinheiro de; Franco, Aline Batista Gonçalves; Kreve, Simone; Ramos, Elimário Venturin; Dias, Sérgio Candido; Amaral, Flávia Lucisano Botelho do

doi:10.4103/jioh.jioh_163_17

Cited by 7 publications

(19 citation statements)

References 2 publications

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“…This difference is due to the smaller material volume on the upper region of the inverse T bar. Under oblique load, the bar showed significant difference between results (15%), considering material's tensile strength, corroborating Carvalho et al [31].…”

Section: Discussionsupporting

confidence: 83%

Biomechanical behavior of an implant system of carbon fiber-reinforced polyether ether ketone (PEEK) bars with different designs: finite elements analysis

Anzolin¹,

Carvalho²,

Franco³

et al. 2019

IAJMH

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We used finite elements analysis to assess the biomechanical behavior of lower protocol bars made of Polyether Ether Ketone (PEEK) reinforced by carbon fiber, with different designs on All-on-four® system, subjected to physiological occlusal loads. The models were built to have an I-shaped or an inverse T-shaped section. We also assessed the stress distribution on the peri implant bone, implants, prosthetic intermediates, prosthetic intermediate screws, and prosthetic screws. In the simulations, strength peaks were similar for both inverse T and I shaped models; however, the I-shaped bars showed larger resistance in comparison with the inverse T shape. Since it is a new material in dentistry, further research is necessary for a better assessment of PEEK's mechanical and clinical performance.

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Section: Discussionsupporting

confidence: 83%

Biomechanical behavior of an implant system of carbon fiber-reinforced polyether ether ketone (PEEK) bars with different designs: finite elements analysis

Anzolin¹,

Carvalho²,

Franco³

et al. 2019

IAJMH

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“…Polymers have been studied as a replacement for metal in protocol-type prostheses infrastructures because they are lighter and more aesthetic materials, among other factors (Anzolin et al, 2017;Aquino et al, 2018;Jaros et al, 2018). Polyether ether ketone (PEEK), previously used in Medicine in orthopedic prostheses and devices, has been employed in dentistry due to its good mechanical behavior (Carvalho et al, 2017;Aquino et al, 2018;Jaros et al, 2018) and elasticity module close to that of the jawbone (Bechir et al, 2016;Manolea et al, 2017). It has been noted that polymers reinforced with intertwined glass fibers show better fracture strength than those reinforced with unidirectional fibers (Vallittu,1998), thus justifying Zantex (Bono et al, 2016) as the polymer of choice for this study.…”

Section: Discussionmentioning

confidence: 99%

“…The tridimensional models consisted of edentulous mandibular arches with 5 Titamax CM ExAcqua-standard implants 3.75x11mm (Neodent) and CM mini straight abutments with 1.5 mm cuffs. The bars are designed with rectangular cross section measuring 4.0mm of width x 6.0mm of height and distal cantilever of 9.0mm (Carvalho et al, 2017).…”

Section: Methodsmentioning

confidence: 99%

The biomechanics of the bone and of metal, Zantex and PEEK bars in normal and osteoporotic condition, surrounding implants over protocols: an analysis by the Finite Element Method

Franco

Carvalho

Franco

et al. 2022

RSD

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This study aims to assess the biomechanical behavior of the alveolar bone surrounding the implants over protocol with metal, Polyether ether ketone (PEEK) and Zantex bars, in normal and osteoporotic conditions. For the simulation, geometric models of the mandibular arch were designed containing 5 implants and two variables. The first variable is the bone condition - normal and osteoporotic-, and the second is the material used in the protocol bars – metal, PEEK and Zantex. Simulation was performed using the Finite Elements Method. Results showed that the largest load peaks were concentrated in the medullary bone, both in the normal and osteoporotic conditions. The osteoporotic bone was subjected to more loads than the normal bone in all simulated structures. PEEK and Zantex bars are generally effective load dissipators, showing better performance than Ni-Cr in both types of bone. It is important to assess the bone condition and its relationship with the material used in protocol-type prostheses infrastructure.

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“…Under axial load, peaks occurred on the bars adjacent to the contact surface between the left posterior implant's intermediate and the bar. Given the difference in rigidity of Ni-Cr and PEEK, smaller values are expected on the same load conditions, as shown by other authors,[ 34 35 36 ] particularly by de Carvalho et al .,[ 19 ] who showed that metal bars present higher compression strength compared to PEEK bars, regardless of its design. Under oblique load, M1 model presented peaks at the lingual region of the left posterior implant cavum.…”

Section: Discussionmentioning

confidence: 99%

“…Polyether ether ketone (PEEK) is a biomaterial currently applied to dental and medical devices[ 17 18 ] that has been studied as an alternative to metal alloys in protocol type bars. [ 19 ] It is a linear high-performance polymer due to its mechanical properties, stability at high temperatures, and chemical resistance. PEEK also shows coloration similar to that of the teeth, low weight and is an alternative to patients with metal allergies.…”

Section: Introductionmentioning

confidence: 99%

Biomechanical behavior of an implant system using polyether ether ketone bar: Finite element analysis

Jaros

Carvalho

Franco

et al. 2018

J Int Soc Prevent Communit Dent

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Aim and Objectives:This study assessed, through finite element analysis, the biomechanical behavior of an implant system using the All-on-Four® technique with nickel–chromium (M1) and polyether ether ketone (PEEK) bars (M2).Materials and Methods:Implants and components were represented in three-dimensional (3D) geometric models and submitted to three types of load: axial, oblique, and load on all teeth. The 3D models were exported to a computer-aided design-like software such as Solidworks 2016 (Dassault Systemes, Solidworks Corps, USA) for editing and Nonuniform Rational Basis Splines parametrization.Results:Data were analyzed according to system's areas of action: peri-implant bone, implant, intermediates, intermediates’ screws, prostheses’ screws, and bars. Largest peak stress was shown in M2.Conclusion:PEEK is a promising material for use in dentistry; however, further studies are necessary to evaluate its performance.

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Polyether ether ketone in protocol bars: Mechanical behavior of three designs

Cited by 7 publications

References 2 publications

Biomechanical behavior of an implant system of carbon fiber-reinforced polyether ether ketone (PEEK) bars with different designs: finite elements analysis

Biomechanical behavior of an implant system of carbon fiber-reinforced polyether ether ketone (PEEK) bars with different designs: finite elements analysis

The biomechanics of the bone and of metal, Zantex and PEEK bars in normal and osteoporotic condition, surrounding implants over protocols: an analysis by the Finite Element Method

Biomechanical behavior of an implant system using polyether ether ketone bar: Finite element analysis

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