Comparative evaluation of the effect of thermocycling on the mechanical properties of conventionally polymerized, CAD-CAM milled, and 3D-printed interim materials

Taşın, Simge; İsmatullaev, Artur

doi:10.1016/j.prosdent.2021.09.020

Cited by 26 publications

(29 citation statements)

References 33 publications

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“…Thermocycling can be applied as a method of artificial aging, which mainly consists of water immersion and temperature change under standardized laboratory conditions [ 30 ]. It can be assumed that thermal cycling leads to microcracks, which increase the surface roughness and enhance water uptake and dissolution [ 31 ].…”

Section: Discussionmentioning

confidence: 99%

“…The special chemical structure of PEEK exhibits stable chemical and physical properties [ 3 ]. PEEK has the lowest solubility and water absorption values compared to PMMA and composites, a good chemical resistance against almost all solvents with almost zero water uptakes compared to alloys and ceramics, and exceptional tribological properties [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

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Surface Characteristics and Color Stability of Dental PEEK Related to Water Saturation and Thermal Cycling

et al. 2022

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(1) Background: The study was undertaken to evaluate the surface characteristics, microhardness, and color stability of PEEK materials related to water saturation and in vitro aging. (2) Methods: Custom specimens of unmodified and modified PEEK CAD/CAM materials were investigated: BioHPP, a ceramic reinforced PEEK, and Finoframe PEEK and Juvora medical PEEK, 100% PEEK materials. Forty-eight plates were sectioned in rectangular slices. The specimens were immersed in distilled water at 37 °C for a period of 28 days, and then subjected to aging by thermal cycling (10,000 cycles). Surface roughness was measured with a contact profilometer; nanosurface topographic characterization was made by Atomic Force Microscopy; Vickers hardness measurements were performed with a micro-hardness tester; color changes were calculated. All registrations were made before immersion in water and then subsequently once a week for 4 weeks, and after thermocycling. (3) Results: The studied reinforced and unfilled PEEK materials reached water saturation after the first week of immersion, without significant differences between them. The most affected from this point of view was the reinforced PEEK material. Thermocycling induces a significant increase inmicroroughness, without significant differences between the studied materials. In relation to the nanosurface topography and roughness, the reinforced PEEK material was the least modified by aging. The color changes after 4 weeks of water immersion and one year of simulated in vitro aging ranged from extremely slight to slight, for all materials. (4) Conclusions: Water absorption was associated with a decrease in microhardness. Surface characteristics are affected by water immersion and thermocycling. Perceivable or marked color changes of the materials were not detected during the study.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Surface Characteristics and Color Stability of Dental PEEK Related to Water Saturation and Thermal Cycling

et al. 2022

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“…(ii) Comparing the elastic modulus of composite-based, ester-based, and polylactic-acidbased 3D-printed provisional resins: Crenn et al [29] reported higher elastic modulus values for ester-based and polylactic-acid-based 3D-printed resins when compared to conventional PMMA and bis-acrylic-based resins. Taşın et al [30] reported higher elastic modulus values for composite-based 3D-printed resins compared to conventional PMMA, CAD/CAM PMMA, and conventional bis-acrylic-based resins.…”

Section: Elastic Modulusmentioning

confidence: 99%

“…Compared to CAD/CAM milling, the 3D printing technique reduces the manufacturing time and causes less wastage of raw material; thus, it can be a cost-effective option for fabricating provisional crowns and FDPs [25]. Studies comparing the physical and mechanical properties of provisional 3D-printed resins (used for fabricating provisional crowns and FDPs) with conventional and CAD/CAM milled provisional resins have shown varied results [16,[26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Physical and Mechanical Properties of 3D-Printed Provisional Crowns and Fixed Dental Prosthesis Resins Compared to CAD/CAM Milled and Conventional Provisional Resins: A Systematic Review and Meta-Analysis

et al. 2022

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Newly introduced provisional crowns and fixed dental prostheses (FDP) materials should exhibit good physical and mechanical properties necessary to serve the purpose of their fabrication. The aim of this systematic literature review and meta-analysis is to evaluate the articles comparing the physical and mechanical properties of 3D-printed provisional crown and FDP resin materials with CAD/CAM (Computer-Aided Designing/Computer-Aided Manufacturing) milled and conventional provisional resins. Indexed English literature up to April 2022 was systematically searched for articles using the following electronic databases: MEDLINE-PubMed, Web of Science (core collection), Scopus, and the Cochrane library. This systematic review was structured based on the guidelines given by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The focused PICO/PECO (Participant, Intervention/exposure, Comparison, Outcome) question was: ‘Do 3D-printed (P) provisional crowns and FDPs (I) have similar physical and mechanical properties (O) when compared to CAD/CAM milled and other conventionally fabricated ones (C)’. Out of eight hundred and ninety-six titles, which were recognized after a primary search, twenty-five articles were included in the qualitative analysis, and their quality analysis was performed using the modified CONSORT scale. Due to the heterogeneity of the studies, only twelve articles were included for quantitative analysis. Within the limitations of this study, it can be concluded that 3D-printed provisional crown and FDP resin materials have superior mechanical properties but inferior physical properties compared to CAD/CAM milled and other conventionally fabricated ones. Three-dimensionally printed provisional crowns and FDP materials can be used as an alternative to conventional and CAD/CAM milled long-term provisional materials.

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“…The subtractive method of fabrication has been reported to produce mechanically superior restorations, compared to those made with the additive manufacturing method. 43 , 44 However, about 90% of the prefabricated block material gets wasted while creating the desired restoration. 45 The additive method approach has gained in popularity, as it produces complex structures with high precision without any waste of material.…”

Section: Cad/cam Fabricated Post and Corementioning

confidence: 99%

Customized Post and Cores Fabricated with CAD/CAM Technology: A Literature Review

al-Qarni¹

2022

IJGM

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Post and core restorations are a widely accepted method to restore endodontically treated teeth with compromised tooth structure. The use of computerized technology to fabricate customized post and cores is a simple and quick alternative to conventional methods. A literature search was conducted, and a summary of articles describing fabrication techniques and materials used to fabricate post and cores with computer-aided design and computer-aided manufacturing (CAD/CAM) has been provided. Several techniques have been reported to restore endodontically treated teeth with CAD/CAM post and cores, including direct and indirect methods. Zirconia, composite resin, and hybrid ceramic were the most commonly reported materials. Published reports on CAD/CAM post and core are limited; however, further studies are needed to investigate the long-term outcome of this treatment.

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Comparative evaluation of the effect of thermocycling on the mechanical properties of conventionally polymerized, CAD-CAM milled, and 3D-printed interim materials

Cited by 26 publications

References 33 publications

Surface Characteristics and Color Stability of Dental PEEK Related to Water Saturation and Thermal Cycling

Surface Characteristics and Color Stability of Dental PEEK Related to Water Saturation and Thermal Cycling

Physical and Mechanical Properties of 3D-Printed Provisional Crowns and Fixed Dental Prosthesis Resins Compared to CAD/CAM Milled and Conventional Provisional Resins: A Systematic Review and Meta-Analysis

Customized Post and Cores Fabricated with CAD/CAM Technology: A Literature Review

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