Double‐Crown Prosthesis Retention Using Polyetherketoneketone (PEKK): An In Vitro Study

Igarashi, Kensuke; Katagiri, Hiroki; Abou‐Ayash, Samir; Schimmel, Martín; Afrashtehfar, Kelvin I.

doi:10.1111/jopr.13512

Cited by 8 publications

(5 citation statements)

References 39 publications

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“…Both of them outperformed conventional biopolymers in terms of strength and rigidity. For the double-crown system, the PEKK/PEKK combination outperformed the cobalt-chrome/PEKK combination in a study by Igarashi et al [ 12 ]. In another study, despite having lower retentive forces than CoCr clasps, the PEKK clasp maintained similar or higher retentive forces after 15,000 insertion and removal cycles [ 13 ].…”

Section: Resultsmentioning

confidence: 99%

“…The presence of a second ketone group increases its structural variations [ 10 ]. After the promising applications of PEEK in dental implants, fixed prostheses, and removable dentures [ 11 , 12 , 13 ], PEKK was considered a potential biomaterial candidate. The potential applications of PEKK are similar to those of PEEK, and it has been approved by the U.S. Food and Drug Administration as an implantable material [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Characterization and Antibacterial Properties of Polyetherketoneketone Coated with a Silver Nanoparticle-in-Epoxy Lining

et al. 2022

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Polyetherketoneketone (PEKK) is an alternative material for use in removable partial denture frameworks; these frameworks must exhibit antibacterial properties to reduce the risk of periodontal disease. In the present study, silver nanoparticles (AgNPs) were synthesized via the reduction of silver nitrate with sodium borohydride in a solution containing polyvinyl pyrrolidone (PVP). Transmission electron microscope images and dynamic light scattering confirmed that metallic nanoparticles had been created with an average size of 32 nm. Furthermore, the coating of the PEKK polymeric substrate with 0.5% AgNPs was carried out using an epoxy resin lining at room temperature. Fourier transform infrared (FTIR) spectra confirmed the successful transfer of the AgNP-in-resin lining onto the polymeric substrate. Scanning electron microscopy and atomic force microscopy confirmed that the AgNPs had been uniformly deposited onto the PEKK specimens. Finally, the antibacterial activity of the specimens was tested against Porphyromonas gingivalis. An inhibition zone of 22.5 mm and an antibacterial rate of 83.47% were found for the PEKK coated with 0.5% AgNPs (0.5% Ag-PEKK) compared to an untreated polyetheretherketone (PEEK) substrate, evidencing that 0.5% Ag-PEKK has potential antibacterial properties for implant applications.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterization and Antibacterial Properties of Polyetherketoneketone Coated with a Silver Nanoparticle-in-Epoxy Lining

et al. 2022

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“…The clinically standard type of marginal disagreement has been assigned entirely different values by the various investigators[ 19 ] whereas de Igarashi K et al . [ 20 ] detailed the retentive force of telescopic crowns using polyetherketoneketone (PEKK) high-performance polymer in relation to conventional materials over a long period of time. According to Mclean and von Fraunhofer, the clinically ideal marginal space following cementation should be, respectively, 115 and 120 μm., and Assif et al .…”

Section: Discussionmentioning

confidence: 99%

Stereomicroscope-Based in Vitro Study Evaluating the Marginal and Internal Fit of PEEK and PEKK Crowns

Amalorpavam,

Chandramohan,

Soundar

et al. 2024

Journal of Pharmacy and Bioallied Sciences

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Purpose: The aim of the in vitro study was to compare the internal merge and marginal perfection of polyetheretherketone (PEEK) and polyetherketoneketone (PEKK) crowns under a stereomicroscope. Methods: All-ceramic preparation is done on the maxillary first premolar which is mounted on the wax block which was scanned using 3Shape scanner and duplicated into 30 acrylic CAD/CAM dies (n = 15) for the placement of PEEK and PEKK crowns. The YENADENT milling system was used to fabricate 15 samples from Group A PEEK crowns and to fabricate 15 samples from Group B PEKK crowns. According to the manufacturer’s instructions, an equal amount of the dual-cure resin luting agent (Rely X U200 Self-Adhesive resin, 3M, Germany) was dispensed on the mixing pad before being mixed with cement and painted on the internal surfaces of the copings with the finger pressure crowns which were luted. The values were then analyzed using one-way ANOVA (post hoc) followed by Dunnett’s t-test. Results: Among those two groups, PEEK group materials showed the lowest mean value of (28.73.3 ± 4.01) for marginal fit and (26.72 ± 2.53) for internal gap, whereas PEKK group showed a mean value of (32.85 ± 4.63) and (33.06 ± 4.14), respectively. Conclusion: Among these two groups, comparatively less marginal fit and internal adaptation is seen in PEKK when compared to the PEEK crowns. While the marginal fit and internal adaptation of both PEEK and PEKK copings were in acceptable clinical range.

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“…Dental zirconia is a popular ceramic material, due to its aesthetic outcomes, biocompatibility, toughness, and low production cost [1][2][3][4][5]. Although zirconia was initially introduced as a core material, its use as a monolithic restorative material has become more common, due to concerns over chipping when layered [6,7].…”

Section: Introductionmentioning

confidence: 99%

Ultra-Translucent Zirconia Laminate Veneers: The Influence of Restoration Thickness and Stump Tooth-Shade

et al. 2023

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This in vitro study aimed to evaluate the final shade of translucent zirconia laminate veneers with varying thicknesses over teeth with different shades. Seventy-five chairside computer-aided design/computer-aided manufacturing (CAD/CAM) shade A1 third-generation zirconia dental veneers, with thicknesses of 0.50 mm, 0.75 mm, and 1.00 mm, were placed on resin composite teeth with shades ranging from A1 to A4. The laminate veneers were divided into groups based on thickness and background shade. All restorations were evaluated with a color imaging spectrophotometer, to map the veneer surface from A1 to D4. Regardless of the thickness or background shade, all dental veneers showed color alteration from the original shade. Veneers with 0.5 mm thickness tended to display the B1 shade, while veneers with 0.75 mm and 1.0 mm thickness primarily exhibited the B2 shade. The thickness of the laminate veneer and background shade significantly modified the original shade of the zirconia veneer. One-way analysis of variance was performed and a Kruskal–Wallis test was used to determine the significance between the three veneer thicknesses groups. The results indicated that the thinner restorations showed higher values with the color imaging spectrophotometer, suggesting that thinner veneers may result in more consistent color matching. This study underscores the importance of carefully considering thickness and background shade when selecting zirconia laminate veneers, to ensure optimal color matching and overall aesthetic outcomes.

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Double‐Crown Prosthesis Retention Using Polyetherketoneketone (PEKK): An In Vitro Study

Cited by 8 publications

References 39 publications

Characterization and Antibacterial Properties of Polyetherketoneketone Coated with a Silver Nanoparticle-in-Epoxy Lining

Characterization and Antibacterial Properties of Polyetherketoneketone Coated with a Silver Nanoparticle-in-Epoxy Lining

Stereomicroscope-Based in Vitro Study Evaluating the Marginal and Internal Fit of PEEK and PEKK Crowns

Ultra-Translucent Zirconia Laminate Veneers: The Influence of Restoration Thickness and Stump Tooth-Shade

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