Marginal Accuracy and Fracture Resistance of Posterior Crowns Fabricated from CAD/CAM PEEK Cores Veneered with HIPC or Nanohybrid Conventional Composite

Beleidy, Marwa; Ziada, Ahmed

doi:10.21608/edj.2020.40096.1217

Cited by 9 publications

(17 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…lign and HIPC veneering composite materials revealed valuable mechanical properties, so they were chosen as test materials. 15,29 The hypothesis that HIPC veneered PEEK crown would show more wear resistance was confirmed.…”

Section: Discussionmentioning

confidence: 87%

“…Because HIPC has been studied in vivo and accepted for over 7 years, it is recommended for a long-term dental prosthetic restoration. 15 Moreover, as a high-performance polymer, HIPC maintains its strength compared to ceramic (ceramic "ages"). 16 Additionally, conventional PEEK substructure veneering with light polymerized composite resin is commonly used.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative wear analysis of conventional versus CAD/CAM composite veneered PEEK crowns using 3D surface deviation

Beleidy

Ziada

2022

Egyptian Dental Journal

Self Cite

View full text Add to dashboard Cite

Purpose: Due to a lack of data on their wear behavior, the study aimed to analyze the twobody wear rate of two different composite veneered computer-aided design/computer-aided manufacturing (CAD/CAM) polyetheretherketone (PEEK) posterior crowns after wear simulation using 3D surface deviation. Materials and Methods:Twenty duplicated epoxy resin models of prepared mandibular first molar to receive an all-ceramic crown were fabricated. Twenty CAD/CAM PEEK substructures were manufactured and divided according to the veneering technique into two groups (n=10); group (H): CAD/CAM High Impact Polymer Composite (HIPC) veneered PEEK substructures, and group (C): Conventional Crea.lign composite veneered PEEK substructures (control). The specimens underwent thermal and mechanical loading (49N, 5/55˚C; 120,000 chewing cycles) as antagonized by steatite ceramic balls. 3D surface deviation analysis using a 3D dental scanner and Geomagic Design X software was applied before and after chewing simulation to determine the volumetric wear loss (mm 3 ). Data were statistically analyzed with the Mann-Whitney U test to compare the two groups. The significance level was set at p≤0.05.

show abstract

Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Comparative wear analysis of conventional versus CAD/CAM composite veneered PEEK crowns using 3D surface deviation

Beleidy

Ziada

2022

Egyptian Dental Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…37,38 Compared to conventional composites, HIPC veneering composite materials showed good mechanical properties. 39,40 Additionally, its application as a veneering material for fixed and partial dentures made it a good choice as a test material. 39,40 Different average wear rates have been predominantly evident in the previous literature due to variations in the operator, patient, and wear assessment methods.…”

Section: Discussionmentioning

confidence: 99%

“…39,40 Additionally, its application as a veneering material for fixed and partial dentures made it a good choice as a test material. 39,40 Different average wear rates have been predominantly evident in the previous literature due to variations in the operator, patient, and wear assessment methods. 1,3,31 On the other hand, the material behavior is directly affected by particle size, shape, hardness of composite, interparticle spacing, filler content and distribution, and degree of conversion.…”

Section: Discussionmentioning

confidence: 99%

3D Surface Deviation Wear Analysis of Veneered PEEK Crowns and Its Correlation with Optical Digital Profilometry

Beleidy

Ziada

2022

Journal of Prosthodontics

Self Cite

View full text Add to dashboard Cite

Purpose To verify whether 3D surface deviation analysis software can detect the surface changes of composite veneered polyetheretherketone posterior crowns following wear simulation compared to optical digital profilometry. Materials and methods Twenty dental crowns, fabricated from CAD‐CAM polyetheretherketone (PEEK) and veneered with high impact polymer composite (HIPC), were subjected to wear test (50N, 5/55°C; 120,000 chewing cycles). Optical digital profilometry and 3D surface deviation using Geomagic design X software was used before and after the wear test to measure volumetric wear loss (mm3). The data were statistically analyzed with Wilcoxon signed‐rank test to compare the two methodologies. The significance level was set at p ≤ 0.05. Results There was no statistically significant difference between the two assessment methods (p‐value = 0.075, Effect size = 0.854). Regarding the optical digital profilometry analysis, HIPC veneered PEEK crowns showed 0.01686 (0.018‐0.02155) mm3 as a median volumetric wear loss value. While the crowns analyzed by 3D surface deviation showed –0.0398 (–0.0913 to –0.0042) mm3 as a median volumetric loss value (p‐value = 0.075, Effect size = 0.854). In addition, there was no statistically significant correlation between wear measurements by optical digital profilometry and 3D surface deviation analyses (ρ = –0.177, p‐value = 0.685). Conclusions There was no significant difference or correlation between optical digital profilometry and 3D surface deviation analyses for volumetric wear loss of veneered PEEK crowns.

show abstract

“…Compared with existing dental materials, PEEK shows better mechanical properties of flexural strength and fracture resistance [4,5]. Most reported PEEK prostheses were fabricated with the CAD/CAM milling technique, while the cost of excess material and time remain to be solved in the future [5][6][7]. Additive manufacturing, also named 3D printing, offers a remarkable utilization rate of the material and good shape ability, which has attracted the focus of researchers [8,9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Acid-Etching Duration on the Adhesive Performance of Printed Polyetheretherketone to Veneering Resin

Zhang

Wang

et al. 2021

Polymers

View full text Add to dashboard Cite

Three-dimensional printing polyetheretherketone (PEEK) provides a new choice for dental prostheses, while its appropriate bonding procedure and adhesive performance are still unclear. This study aimed to investigate the adhesive performance of printed polyetheretherketone (PEEK) after acid etching to veneering resin. In total, 182 PEEK specimens (including 91 printed and 91 milled specimens) were distributed to 14 subgroups (n = 13/subgroup), according to the manufacturing process and surface treatment. The specimens were polished and etched with sulfuric acid for 0, 5, 30, 60, 90, 120, and 300 s, respectively. Two specimens in each subgroup were observed under a scanning electron microscope (SEM) for surface and cross-section morphology separately. Then, the specimens were treated with a bonding primer, and one specimen in each subgroup was prepared for cross-sectional observation under SEM. The residual 10 specimens of each subgroup bonded with veneering resin were tested with the shear bond strength tests (SBS) and failure modes analysis. Statistical analysis was performed by one-way ANOVA followed by the SNK-q post hoc test (p < 0.05). The etched pores on the PEEK surface were broadened and deepened under SEM over time. Printed PEEK etched for 30 s obtained the best SBS-to-veneering-resin ratio (27.90 ± 3.48 MPa) among the printed subgroups (p < 0.05) and had no statistical differences compared with milled PEEK etched for 30 s. The SBS of the milled subgroups etched from 5 to 120 s were over 29 MPa without significant between-group statistical differences. Hence, printed PEEK can be coarsened effectively by 30 s of sulfuric acid etching. The adhesion efficacy of printed PEEK to veneering resin was qualified for clinical requirements of polymer-based fixed dentures.

show abstract

Marginal Accuracy and Fracture Resistance of Posterior Crowns Fabricated from CAD/CAM PEEK Cores Veneered with HIPC or Nanohybrid Conventional Composite

Cited by 9 publications

References 59 publications

Comparative wear analysis of conventional versus CAD/CAM composite veneered PEEK crowns using 3D surface deviation

Comparative wear analysis of conventional versus CAD/CAM composite veneered PEEK crowns using 3D surface deviation

3D Surface Deviation Wear Analysis of Veneered PEEK Crowns and Its Correlation with Optical Digital Profilometry

Effect of Acid-Etching Duration on the Adhesive Performance of Printed Polyetheretherketone to Veneering Resin

Contact Info

Product

Resources

About