Bacterial leakage and bending moments of screw-retained, composite-veneered PEEK implant crowns

Wachtel, Andreas; Zimmermann, Tycho; Sütel, Mona; Adali, Ufuk; Abou-Emara, Mohamad; Müller, Wolf‐Dieter; Mühlemann, Sven; Schwitalla, Andreas Dominik

doi:10.1016/j.jmbbm.2018.11.027

Cited by 26 publications

(21 citation statements)

References 24 publications

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“…In another study the marginal adaptation of PEEK implant-supported frameworks before and after cementation has been on the borderline of clinical acceptability but with significantly higher marginal discrepancy than zirconia frameworks [ 36 ]. On the other hand, Jin et al found good marginal fit values of 19 ± 4 μm for PEEK three-unit implant-supported frameworks [ 33 ], in agreement with the results of Wachtel et al who reported no bacterial leakage of screw-retained PEEK crowns during masticatory simulation [ 29 ].…”

Section: Resultssupporting

confidence: 82%

“…Therefore, the use of PEEK could be advantageous for IFDPs where proprioception is reduced by the absence of periodontal ligaments and eliminate mechanical complications such as veneer fractures and clicking sound during function reported for metal-ceramic or monolithic zirconia restorations [ 4 , 52 ]. In agreement with this statement, an in vitro study evaluating screw-retained PEEK crowns on titanium implants found favorable fracture mode for PEEK compared to conventional materials while bending points were displaced coronally, providing protection from damage to the implant and the abutment screws [ 29 ]. No screw loosening, or veneer complication was found.…”

Section: Resultsmentioning

confidence: 70%

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The use of PEEK in digital prosthodontics: A narrative review

et al. 2020

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Background: Advanced computer-aided design and computer-aided manufacturing (CAD-CAM) technology led to the introduction of an increasing number of machinable materials suitable for dental prostheses. One of these materials is polyetheretherketone (PEEK), a high performance polymer recently used in dentistry with favorable physical, mechanical and chemical properties. The purpose of this study was to review the current published literature on the use of PEEK for the fabrication of dental prostheses with CAD-CAM techniques. Methods: Electronic database searches were performed using the terms "PEEK", "CAD-CAM", "dental", "dentistry" to identify studies related to the use of PEEK for the fabrication of CAD-CAM prostheses. The search period spanned from January 1990 through February 2020. Both in vivo and in vitro studies in English were eligible. Review articles and the references of the included publications were searched to identify relevant articles. Results: A great number of in vitro studies are available in the current literature pointing out the noticeable properties of PEEK. The use of PEEK has been recommended for a wide range of CAD-CAM fabricated fixed and removable dental prostheses. PEEK was additionally recommended for occlusal splints, intra-radicular posts, implant abutments, customized healing abutments and provisional restorations. However, only a few clinical studies were identified. Conclusions: PEEK could be considered as a viable alternative for CAD-CAM fixed and removable dental prostheses to well-established dental materials. Due to the scarcity of clinical data, clinical trials are needed to assess the longterm performance of PEEK prostheses.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 70%

The use of PEEK in digital prosthodontics: A narrative review

et al. 2020

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“…PEEK material, a semi crystalline and thermoplastic polymer, has similar elastic modulus as bones, good biocompatibility, natural radiolucency, and stable chemical/sterilization resistance. Therefore, it has been taken as one of the promising materials used for orthopedic and dental materials [1,2]. With further studies on endowing PEEK with improved bioactivity, PEEK material is believed to be the most suitable material for human bone implants such as spine fusions and joint replacements [1,3,4].…”

Section: Introductionmentioning

confidence: 99%

Study of milling process basics for the biocompatible PEEK material

Cheng

Ling

et al. 2020

Mater. Res. Express

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Polyetheretherketone (PEEK) material has attracted attentions and studies in the medical field due to its excellent properties suitable for orthopedic, dental, and implant applications. In order to acquire the needed geometrical accuracy and surface finish for individual customizations of components made of PEEK material, milling process basics for PEEK material have been studied in this paper. The influences of milling parameters on milling forces and surface roughness are discussed based on single-factor and orthogonal milling experiments. It shows that the effects of cutting parameters on cutting forces are basically in accordance with that in the classical metal cutting theory. But the effects of cutting parameters on the surface roughness are different. Also the significance sequences of the key milling parameters on milling forces and surface roughness are identified. Furthermore, a finite element simulation model to estimate the milling force is established and successfully evaluated for customized applications.

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“…In line with this finding, Klur, et al 42 found that PEKK-made restorations offer a good and stable alternative to CoCr-made restorations particularly in improving the oral hygiene. In line with this observation, Wachtel et al 43 evaluated bacterial tightness of screw-retained PEEK crowns on titanium implants during masticatory simulation. They found that PEEK material has a sealing effect against bacterial leakage at the implant-abutment interface with no bacterial leakage which is advantageous compared to superstructures of conventional materials.…”

Section: Discussionmentioning

confidence: 90%