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Rigos AE, Sarafidou K, Kontonasaki E. Zirconia bond strength durability following artificial aging: A systematic review and meta-analysis of in vitro studies. JAPANESE DENTAL SCIENCE REVIEW 2023; 59:138-159. [PMID: 37274447 PMCID: PMC10238491 DOI: 10.1016/j.jdsr.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 03/27/2023] [Accepted: 04/19/2023] [Indexed: 06/06/2023] Open
Abstract
The present study systematically reviewed the literature regarding the bond strength durability of zirconia ceramics to resin-based luting cements after application of different bonding protocols and aging conditions. Electronic searches in PubMed, Scopus, and Web of Science databases were performed for relevant literature published between January 1st 2015 and November 15th 2022. Ninety-three (93) English language in-vitro studies were included. The percentage of the mean bond strength change was recorded prior to and after artificial aging, and the weighted mean values and 95% confidence intervals were calculated. Bonding protocols were classified based on the combination of MDP/non-MDP containing cement/primer and surface pretreatment, as well as the level of artificial aging performed. Alumina sandblasting (SA) was identified as the most frequently used surface pre-treatment while an insufficient number of studies was identified for each category of alternative surface treatments. The combination of MDP cement with tribochemical silica coating (TSC) or SA yielded more durable results after aging, while the application of SA and TSC improved bond durability when a non-MDP cement and a non-MDP primer were used. TSC may lead to increased bond durability compared to SA, whereas MDP cements may act similarly when combined with SA or TSC.
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Affiliation(s)
- Athanasios E. Rigos
- Resident, Graduate Prosthodontics, Texas A&M School of Dentistry, Dallas, TX, USA
| | - Katia Sarafidou
- Postdoctoral Researcher, Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Greece
| | - Eleana Kontonasaki
- Associate Professor, Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Greece
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Sokolowski G, Szczesio-Wlodarczyk A, Szynkowska-Jóźwik MI, Stopa W, Sokolowski J, Kopacz K, Bociong K. The Shear Bond Strength of Resin-Based Luting Cement to Zirconia Ceramics after Different Surface Treatments. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5433. [PMID: 37570137 PMCID: PMC10419834 DOI: 10.3390/ma16155433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 08/13/2023]
Abstract
Due to its unique properties, zirconia is increasingly being used in dentistry, but surface preparation for bonding is difficult because of its polycrystalline structure. This study aimed to determine the effect of a new etching technique (Zircos-E) on Ceramill Zi (Amann Girrbach). The effect of etching and the use of primers (Monobond Plus and MKZ Primer) on the bond strength of zirconia with resin cement (NX3) was assessed. Shear bond strength was evaluated after storage in water for 24 h and after thermal aging (5000 thermocycling at 5 °C/55 °C). A scanning electron microscope (Hitachi S-4700) was used to evaluate the surface structure before and after the Zircos-E system. The roughness parameters were assessed using an SJ-410 profilometer. The etched zirconia surface is more homogeneous over the entire surface, but some localized forms of erosion exist. The etching of zirconia ceramics caused changes in the surface structure of zirconia and a significant increase in the shear bond strength between zirconia and resin cement. The use of primers positively affects the adhesion between resin cement and zirconia. Aging with thermocycler significantly reduced the shear bond strength, with one exception-sandblasted samples with MKZ Primer. Standard ceramic surface preparation, involving only alumina sandblasting, does not provide a satisfactory bond. The use of etching with the Zircos-E system and primers had a positive effect on the strength of the zirconium-resin cement connection.
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Affiliation(s)
- Grzegorz Sokolowski
- Department of Prosthodontics, Medical University of Lodz, 251 Pomorska St., 92-213 Lodz, Poland
| | - Agata Szczesio-Wlodarczyk
- University Laboratory of Materials Research, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland
| | - Małgorzata Iwona Szynkowska-Jóźwik
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-543 Lodz, Poland
| | - Wioleta Stopa
- University Laboratory of Materials Research, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland
| | - Jerzy Sokolowski
- Department of General Dentistry, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland
| | - Karolina Kopacz
- “DynamoLab” Academic Laboratory of Movement and Human Physical Performance, Medical University of Lodz, ul. Pomorska 251, 92-216 Lodz, Poland
- Warsaw Medical Academy, Ludwika Rydygiera 8, 01-793 Warszawa, Poland
| | - Kinga Bociong
- Department of General Dentistry, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland
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Calamita RS, Oliveira AAD, Pizzanelli GG, Salvador MVO, Mesquita AMM, Pecorari VGA, Lima AF. Interaction of different concentrations of 10-MDP and GPDM on the zirconia bonding. Dent Mater 2023; 39:665-668. [PMID: 37225538 DOI: 10.1016/j.dental.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/12/2023] [Accepted: 05/02/2023] [Indexed: 05/26/2023]
Abstract
OBJECTIVES To analyze the influence of different concentrations of 10-MDP and GPDM used, combined or not, on the bonding to zirconia. METHODS Specimens of zirconia and a resin-composite (7 mm length, 1 mm width, and 1 mm thick) were obtained. The experimental groups were obtained according to the functional monomer (10-MDP and GPDM) and the concentrations (3 %, 5 %, and 8 %). For the groups with combined 10-MDP and GPDM, the agents were used with a proportion of 50 %/50 % wt until reaching the 3 %, 5 % and 8 % concentrations. All monomers were diluted in ethanol to obtain the primers. Two control groups were established: ethanol (negative control) and a commercial reference Monobond N (positive control). The zirconia surface treatment was performed with the primer application followed by the bonding to a resin-composite sample with a light-curing resin cement. Twenty-four hours after the adhesive procedure, a microtensile test was performed and the failure pattern of each sample was analysed with a stereoscopic magnifying glass. Data were analysed by a two-way ANOVA and Dunnet test. RESULTS All experimental primers presented a higher bond strength than the negative control (ethanol). Excepting the 8 % GPDM primer, all groups presented statistically similar bond strength compared to the positive control, with a predominance of adhesive failure. SIGNIFICANCE 10-MDP, GPDM, and the combination of both for the concentrations tested promote an effective chemical bonding to zirconia. However, using 10-MDP and GPDM in the same primer has no synergistic effect.
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Affiliation(s)
- Rafael Soares Calamita
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212, 04026-002 Sao Paulo, Brazil
| | | | - Giulia Gamero Pizzanelli
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212, 04026-002 Sao Paulo, Brazil
| | | | | | | | - Adriano F Lima
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212, 04026-002 Sao Paulo, Brazil.
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Wang Z, Xiang Q, Tan X, Zhang Y, Zhu H, Pu J, Sun J, Sun M, Wang Y, Wei Q, Yu H. Functionalized Cortical Bone-Inspired Composites Adapt to the Mechanical and Biological Properties of the Edentulous Area to Resist Fretting Wear. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207255. [PMID: 36775879 PMCID: PMC10104646 DOI: 10.1002/advs.202207255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Dental implants with long-term success of osseointegration have always been the goal, however, difficulties exist. The accumulation of fretting damage at the implant-bone interface often gets overlooked. Commonly used titanium is approximately 7-fold harder and stiffer than cortical bone. Stress shielding caused by the mismatching of the elastic modulus aggravates fretting at the interface, which is accompanied by the risk of the formation of proinflammatory metal debris and implant loosening. Thus, the authors explore functionalized cortical bone-inspired composites (FCBIC) with a hierarchical structure at multiple scales, that exhibit good mechanical and biological adaptivity with cortical bone. The design is inspired by nature, combining brittle minerals with organic molecules to maintain machinability, which helps to acquire excellent energy-dissipating capability. It therefore has the comparable hardness and elastic modulus, strength, and elastic-plastic deformation to cortical bone. Meanwhile, this cortical bone analogy exhibits excellent osteoinduction and osseointegration abilities. These two properties also facilitate each other to resist fretting wear, and therefore improve the success rate of implantation. Based on these results, the biological-mechanical co-operation coefficient is proposed to describe the coupling between these two factors for designing the optimized dental implants.
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Affiliation(s)
- ZhongYi Wang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - QianRong Xiang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - Xin Tan
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
- Chongqing Key Laboratory of Oral Diseases and Biomedical SciencesCollege of StomatologyChongqing Medical UniversityChongqing400016China
| | - YaDong Zhang
- Research and Development DepartmentZhejiang PEKK‐X Advanced Materials Technology Co., Ltd.ShaoxingZhejiang312000China
| | - HaoQi Zhu
- Department of PhysicsCity University of Hong KongHong Kong Special Administrative Region of the People's Republic of ChinaKowloon999077China
| | - Jian Pu
- School of Mechanical EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - JiKui Sun
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - ManLin Sun
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - YingKai Wang
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - Qiang Wei
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials and EngineeringSichuan UniversityChengduSichuan610065China
| | - HaiYang Yu
- State Key Laboratory of Oral DiseasesNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
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Yang J, Liao M, Hong G, Dai S, Shen J, Xie H, Chen C. Effect of APTES- or MPTS-Conditioned Nanozirconia Fillers on Mechanical Properties of Bis-GMA-Based Resin Composites. ACS OMEGA 2020; 5:32540-32550. [PMID: 33376891 PMCID: PMC7758951 DOI: 10.1021/acsomega.0c04762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
To investigate the effects of 3-aminopropyltriethoxysilane (APTES)- or (3-mercaptopropyl)trimethoxysilane (MPTS)-conditioned nanozirconia fillers on the mechanical properties of Bis-GMA-based resin composites. The conditioned fillers were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermodynamic calculations. They were then used to prepare Bis-GMA-based resin composites, whose flexural strength and elastic modulus were evaluated. The Cell Counting Kit-8 (CCK-8) assessed the composites' cytotoxicity. The FTIR spectra of the conditioned fillers showed new absorption bands at 1569 and 1100 cm-1, indicating successful grafting of APTES or MPTS onto nanozirconia. XPS confirmed the Zr-O-Si bonds in the APTES- or MPTS-conditioned fillers at contents of 2.02 and 6.98%, respectively. Thermodynamic calculations reaffirmed the chemical binding between the two silanes and nanozirconia fillers. Composites containing the conditioned nanozirconia fillers had significantly greater flexural strengths (APTES, 121.02 ± 8.31 MPa; MPTS, 132.80 ± 15.80 MPa; control, 94.84 ± 9.28 MPa) and elastic moduli (8.76 ± 0.52, 9.24 ± 0.60, and 7.44 ± 0.83 GPa, respectively) than a control with untreated fillers. The cytotoxicity assay identified no significant cytotoxicity by composites containing the conditioned fillers. Silanes were previously considered to be unable to chemically condition zirconia to bond with resin. Inclusion of APTES- or MPTS-conditioned nanozirconia fillers can improve the mechanical properties of Bis-GMA-based resin composites without obvious cytotoxicity in this study.
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Affiliation(s)
- Jiaxue Yang
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Mengyuan Liao
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Gaoying Hong
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Shiqi Dai
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Jiadi Shen
- Jiangsu
Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated
Hospital of Stomatology, Nanjing Medical
University, Nanjing 210029, China
| | - Haifeng Xie
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Chen Chen
- Jiangsu
Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated
Hospital of Stomatology, Nanjing Medical
University, Nanjing 210029, China
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Hjerppe J, Perea-Lowery L, Lassila LVJ, Vallittu PK. Effect of potassium hydrogen difluoride in zirconia-to-resin bonding. Dent Mater J 2020; 40:245-252. [PMID: 33087632 DOI: 10.4012/dmj.2019-389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The objective of this study was to compare potassium hydrogen difluoride (KHF2) etching for zirconia with commonly used surface roughening and chemical bonding methods (silane, MDP-monomer primer) for resin-based luting cement bonding to zirconia. Zirconia specimens were divided into six groups (n=10) according to surface treatment and bonding procedures, with and without thermocycling (6,000 cycles, 5-55ºC): 1) air-borne particle abrasion with alumina+MDP-monomer (ABP), 2) air-borne particle abrasion with silica-coated trialuminium trioxide+silane (ABPR-S) and 3) KHF2 etching+silane (ETC). Surface roughness and bond strength (SBS-test) for dry and thermocycled specimens were measured. SBS did not vary statistically between the dry groups, but thermocycling decreased the bond strengths of all the tested methods (p<0.05). After thermocycling, ABP had statistically significantly lower bond strength values compared to ABPR-S and ETC (p<0.05). Etching method with KHF2 did not provide better bonding capacity to previously introduced and commonly adopted bonding methods.
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Affiliation(s)
- Jenni Hjerppe
- Department of Prosthetic Dentistry and Stomatognathic Physiology, Institute of Dentistry University of Turku.,Departments of Oral and Maxillofacial Diseases, Helsinki University Hospital (HUH)
| | - Leila Perea-Lowery
- Department of Biomaterials Science and Turku Clinical Biomaterials Centre -TCBC, Institute of Dentistry, University of Turku
| | - Lippo V J Lassila
- Department of Biomaterials Science and Turku Clinical Biomaterials Centre -TCBC, Institute of Dentistry, University of Turku
| | - Pekka K Vallittu
- Department of Biomaterials Science and Turku Clinical Biomaterials Centre -TCBC, Institute of Dentistry, University of Turku.,City of Turku, Welfare Division
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Yuan W, Xia D, Zheng Y, Liu X, Wu S, Li B, Han Y, Jia Z, Zhu D, Ruan L, Takashima K, Liu Y, Zhou Y. Controllable biodegradation and enhanced osseointegration of ZrO 2-nanofilm coated Zn-Li alloy: In vitro and in vivo studies. Acta Biomater 2020; 105:290-303. [PMID: 31972366 DOI: 10.1016/j.actbio.2020.01.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/11/2020] [Accepted: 01/15/2020] [Indexed: 12/13/2022]
Abstract
Zinc and its alloys have emerged as a new research direction of biodegradable metals (BMs) due to the significant physiological functions of Zn2+ ions in human body. However, low inhibitory concentration threshold value to cause cytotoxicity by Zn2+ ions during in vitro study and delayed osseointegration in vivo are two key flaws for the bulk Zn-based BMs. To combat these issues, we constructed a barrier layer of ZrO2 nanofilm on the surface of Zn-0.1(wt.%) Li alloy via atomic layer deposition (ALD). A decreased release of Zn2+ ions accompanied with accelerated release of Li+ ions was observed on account of galvanic coupling between the coating compositions and Zn-0.1Li alloy substrate. Cytocompatibility assay reflected that ZrO2 nanofilm coated Zn-0.1Li alloy exhibited improved cell adhesion and viability. Histological analysis also demonstrated better in vivo osseointegration for the ZrO2 nanofilm coated Zn-0.1Li alloy. Hence, the present study elucidated that the ALD of ZrO2 nanofilm on Zn-based BMs can effectively promote osseointegration and control their biodegradation behavior. STATEMENT OF SIGNIFICANCE: Zn-Li binary alloy was reported recently to be the promising biodegradable metals with ultimate tensile strength over 500 MPa, yet the low inhibitory concentration threshold value to cause cytotoxicity by Zn2+ ions is the obstacle needed to be overcome. As a pilot study, a systematic investigation on the ZrO2 nanofilm coated Zn-Li alloy, prepared by atomic layer deposition (ALD) technique, was conducted in the present study, which involved in the formation process, in vitro and in vivo degradation behavior as well as biocompatibility evaluation. We found a controllable corrosion rate and better in vivo osseointegration can be achieved by ZrO2 nanofilm coating on Zn-Li alloy, which provides new insight into the surface modification on biodegradable Zn alloys for usage within bone.
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Affiliation(s)
- Wei Yuan
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Dandan Xia
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China; International Research Organization for Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-Ku, Kumamoto 860-8555, Japan.
| | - Xiangmei Liu
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, China
| | - Shuilin Wu
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China.
| | - Bo Li
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Zhaojun Jia
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA
| | - Donghui Zhu
- Department of Biomedical Engineering, Institute for Engineering-Driven Medicine, College of Engineering and Applied Sciences, Renaissance School of Medicine, Stony Brook University, 100 Nicolls Rd, Stony Brook, NY 11794, USA
| | - Liqun Ruan
- Department of Mechanical Systems Engineering, Graduate School of Science and Technology, Kumamoto University, Kurokami 2-39-1, Kumamoto-shi 860-8555, Japan
| | - Kazuki Takashima
- Department of Materials Science and Engineering, Faculty of Engineering, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Yunsong Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
| | - Yongsheng Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Mechanical properties of aged yttria-stabilized tetragonal zirconia polycrystal after abrasion with different aluminum oxide particles. J Prosthet Dent 2020; 124:599-604. [PMID: 31918896 DOI: 10.1016/j.prosdent.2019.10.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 11/21/2022]
Abstract
STATEMENT OF PROBLEM A consensus on the benefits of airborne-particle abrasion of zirconia with alumina particles of different sizes is still lacking. Larger particle size may improve micromechanical retention but may generate deep microcracks on the zirconia surface. PURPOSE The purpose of this in vitro study was to evaluate the effect of different size of Al2O3 particles used for surface abrasion on the mechanical properties of yttria-stabilized tetragonal zirconia polycrystal (Y-TZP). MATERIAL AND METHODS Sixty Y-TZP specimens were divided into 6 groups according to the treatment: control (without treatment) or airborne-particle abrasion with Al2O3 particles (45 μm or 150 μm). Half the specimens were stored for 24 hours in water while the other half was exposed to 1.5×106 mechanical cycles before flexural strength analysis at 1 mm/min crosshead speed. Specimens were also characterized by micro-Raman spectroscopy and X-ray diffraction (XRD) to evaluate the crystalline composition. The data were subjected to 2-way ANOVA and Tukey HSD test (α=.05). RESULTS Airborne-particle abrasion with alumina (P=.030) and mechanical fatigue (P<.001) had a significant effect on flexural strength. Specimens abraded with 45-μm Al2O3 particles (847 ±204 MPa) presented higher flexural strength than those of the control group (670 ±210 MPa). The size of the alumina particles was not significant for flexural strength. Flexural resistance (664 MPa) significantly decreased after mechanical fatigue. All groups showed only the tetragonal phase on the micro-Raman spectra, which was confirmed by XRD. CONCLUSIONS Airborne-particle abrasion with smaller Al2O3 particles increased the flexural strength on Y-TZP without causing phase transformation. However, flexural strength was decreased after mechanical fatigue.
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Yu Y, Su H, Guan K, Peng C, Wu J. Compound reinforcement of glaze wear resistance by prestress and second grain phase. RSC Adv 2019; 9:24951-24962. [PMID: 35528650 PMCID: PMC9069869 DOI: 10.1039/c9ra04279b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 07/26/2019] [Indexed: 11/21/2022] Open
Abstract
To study the reinforcement effect of prestress and hard grains on glaze wear resistance, fused quartz was added to a ceramic body to introduce various prestresses by creating a thermal expansivity difference with glaze, and feldspar opaque glazes with and without zircon grains were coated on the ceramic bodies. The elastic moduli and Poisson ratios of the glazes were measured by the 2D-DIC system. Furthermore, the prestress of the glaze was calculated according to the double-layer thermal residual stress model and measured by DIC using the stress-release method. The weight losses of the samples caused by the modified method of ISO 10545-7 were determined; the results showed that the weight of the glaze was reduced by 23.8% by increasing the prestress to 81.2 MPa and by 35.9% by adding 7.2 wt% zircon grains. By introducing 7.2 wt% zircon grains and enhancing the prestress to 123.7 MPa, the abrasion weight loss was decreased by 62.7%. To study the effect of prestress and grain on glaze wear resistance, fused quartz was added to ceramic body to introduce various prestress on glaze, and feldspar opaque glazes with and without zircon grains were coated on the ceramic bodies.![]()
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Affiliation(s)
- Yougen Yu
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 Guangdong China
| | - Huazhi Su
- Foshan Daqian Ceramic Pigment & Glaze Co. Ltd. Foshan 528000 Guangdong China
| | - Kang Guan
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 Guangdong China
| | - Cheng Peng
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 Guangdong China
| | - Jianqing Wu
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 Guangdong China
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11
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Zhu P, Liu B, Bao L. Preparation of a sub-100 nm-thick polyetherimide coating layer with nano-TiO2
particles on poly(p
-phenylene benzobisoxazole) fiber surface. J Appl Polym Sci 2018. [DOI: 10.1002/app.46852] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Peng Zhu
- Department of Bioscience and Textile Technology, Institute for Fiber Engineering (IFES); Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University; 3-15-1 Tokida, Ueda 386-8567 Japan
| | - Bing Liu
- Department of Bioscience and Textile Technology; Interdisciplinary Graduate School of Science and Technology, Shinshu University; 3-15-1 Tokida, Ueda 386-8567 Japan
| | - Limin Bao
- Faculty of Textile Science and Technology; Shinshu University; 3-15-1 Tokida, Ueda 386-8567 Japan
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