Schwickerath adhesion tests of porcelain veneer and stereolithographic additive-manufactured zirconia

Lu, Yuqing; Mei, Ziyu; Lou, Yuxin; Li, Yue; Chen, Xin; Sun, Jikui; Wan, Ziqianhong; Yu, Haiyang

doi:10.1016/j.ceramint.2020.03.228

Cited by 14 publications

(7 citation statements)

References 29 publications

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“…Lu et al 30 submitted that AM zirconia produced by digital light processing (DLP) technique, presents adequate bond when veneered with commercial dental porcelain. In the present study, SBS values of AM zirconia manufactured by the NPJ technique were also within the specified range for all‐ceramic restorations 27 .…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, cohesive failure types were observed in both AM and M groups, which means a successful bond between the substructure and porcelain. 30 Considering these results, when the AM zirconia produced with the NPJ technique is evaluated in terms of acceptable bond strength to commercial dental porcelain, it can be considered as a successful material that can be preferred in the construction of prosthetic restorations in clinical use.…”

Section: Discussionmentioning

confidence: 99%

“…24,26 The accepted bond strength value for porcelain fused to metal restorations is 25 MPa according to International Standard (ISO9693) 24 and ranges between 16 MPa and 42 MPa for all-ceramic restorations. 27 Owing to the limited literature, [14][15][16][17][28][29][30] evaluating the ceramic bond strength and mechanical properties of the zirconia that is produced with AM technique, especially with NPJ, is not quite possible. The aim of this in vitro study was to evaluate and compare the mechanical properties and ceramic bonds of additively manufactured and milled dental zirconia materials.…”

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confidence: 99%

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Mechanical Properties and Bond Strength of Additively Manufactured and Milled Dental Zirconia: A Pilot Study

Baysal

Kalyoncuoğlu

Ayyıldız

2022

Journal of Prosthodontics

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Purpose: To evaluate and compare the mechanical properties and ceramic bond of additively manufactured and milled dental zirconia materials. Materials and Methods: Disc (r = 10 mm, h = 2 mm) and bar (25 × 4 × 1. 2 mm) shaped milled (M group) (Nacera Pearl; Doceram) and additively manufactured (AM group) (NanoParticle Jetting; XJet, Carmel 1400) zirconia specimens were prepared for 2 experimental groups. Ceramic was applied to the disc specimens (h = 4 mm, r = 6 mm) (n = 9) and their shear bond strength (SBS) was measured. The surface morphology of disc specimens was analyzed with a scanning electron microscope (SEM). The Vickers microhardness (Vh), surface roughness (Ra), and three-point flexural strength (FS) of bar specimens (n = 9) were measured. Results were statistically analyzed with Mann-Whitney U-test (α = 0.05). Results: Significant differences were found in FS and Vh values of the M and AM groups. M group (1501.4 ± 60.1 HV1) showed a significantly higher Vh value than the AM group (1169.2 ± 48.4 HV1) (p < 0.001). FS of the M group (1287.5 ± 115.2 MPa) exhibited significantly high value than the AM (1030.0 ± 29.2 Mpa) group (p < 0.001). Statistically, no significant differences were seen in SBS and Ra values of the M and AM groups. Conclusion: Within the limitations of this in vitro study, the manufacturing technique affected the mechanical properties of the zirconia materials. AM zirconia material showed lower Vh and FS values than M zirconia. Additionally AM zirconia demonstrated adequate bond strength with dental ceramic.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Mechanical Properties and Bond Strength of Additively Manufactured and Milled Dental Zirconia: A Pilot Study

Baysal

Kalyoncuoğlu

Ayyıldız

2022

Journal of Prosthodontics

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“…A final specimen dimension of 7 mm × 7.5 mm × 1.5 mm was designed for all tests in this study. The samples were fabricated as previously described [15,16]. A slurry containing a homogeneous mixture of zirconia powder (58 vol.%) and photocurable monomers was used for the fabrication of the DLP-based Y-TZP.…”

Section: Sample Preparationmentioning

confidence: 99%

“…In recent studies applying the DLP technique, Lu et al obtained stereolithography-additive-manufactured zirconia with favorable microstructural characteristics and mechanical behavior [15,16]. Similar to the SM-fabricated zirconia, the DLP-manufactured zirconia can also be processed into implant abutments, which are often individually designed and have close contact with gingival tissues.…”

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confidence: 99%

Physical and biological implications of accelerated aging on stereolithographic additive-manufactured zirconia for dental implant abutment

Tan

Zhao

et al. 2021

J Prosthodont Res

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Yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) is currently a scientific and clinical research focus in the field of dental materials, owing to its excellent combination of mechanical features, aesthetics and biocompatibility [1]. Generally, zirconia-derived dental prostheses are fabricated using subtractive manufacturing (SM) technology, which applies computer aided design/computer-aided manufacturing (CAD/CAM) systems [2]. However, some problems with this technology have been recorded in recent years; for instance, it not only causes significant waste of materials and tools, but also has limitations in the fabrication of parts with complex geometries [3]. Consequently, additive manufacturing technologies have attracted increasing attention. Stereolithographic methods, including stereolithography and digital light processing (DLP), are promising for producing small and complex dental parts, which require both high accuracy and surface quality. In addition, these techniques significantly reduce the production steps and consumption of energy and raw materials [3,4].Generally, zirconia crystals are found in three structural entities, including the tetragonal and cubic phases at temperatures of >1170 °C and >2370 °C, respectively. The tetragonal phase is stabilized at ambient by yttria addition to generate a Y-TZP ceramic [1,5]. Currently, 3 mol% yttria stabilized Y-TZP (3Y-TZP) is the most commonly used zirconia ceramic in dentistry because of its excellent mechanical properties. However, this material is susceptible to low-temperature degradation (LTD) under moist conditions [1,6]. LTD involves a nucleation and growth process, which generally starts at the surface of polycrystalline ceramics and induces the tetragonal to monoclinic transformation over a temperature range of ~30 °C to 300 °C [6,7]. Furthermore, LTD may affect the biomechanical and surface physicochemical properties and the service life and quality of 3Y-TZPs, particularly for those applied in biomedical settings, which are exposed to complex environments in vivo, such as hip implants and dental restorations [8].

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Biomechanical and Biological Properties of Stereolithography-Based 3D-Printed Zirconia Interference Screws for Anterior Cruciate Ligament Reconstruction

Li,

Hu,

Tang

et al. 2024

Additive Manufacturing Frontiers

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Schwickerath adhesion tests of porcelain veneer and stereolithographic additive-manufactured zirconia

Cited by 14 publications

References 29 publications

Mechanical Properties and Bond Strength of Additively Manufactured and Milled Dental Zirconia: A Pilot Study

Mechanical Properties and Bond Strength of Additively Manufactured and Milled Dental Zirconia: A Pilot Study

Physical and biological implications of accelerated aging on stereolithographic additive-manufactured zirconia for dental implant abutment

Biomechanical and Biological Properties of Stereolithography-Based 3D-Printed Zirconia Interference Screws for Anterior Cruciate Ligament Reconstruction

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