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Borouziniat A, Majidinia S, Shirazi AS, Kahnemuee F. Comparison of bond strength of self-adhesive and self-etch or total-etch resin cement to zirconia: A systematic review and meta-analysis. JOURNAL OF CONSERVATIVE DENTISTRY AND ENDODONTICS 2024; 27:113-125. [PMID: 38463466 PMCID: PMC10923229 DOI: 10.4103/jcde.jcde_225_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/12/2023] [Accepted: 12/11/2023] [Indexed: 03/12/2024]
Abstract
The aim of this study was to systematically compare the bond strength of self-adhesive and self-etch or total-etch resin cement to zirconia. The PubMed, ISI (all), and Scopus databases were searched for the selected keywords up to November 1, 2021, without date or language restrictions. In vitro studies comparing the bond strength of self-adhesive and self-etch or total-etch resin cement to zirconia were eligible for inclusion in the study. The selected articles were divided into four groups based on the type of resin cement and the storage time. Statistical analysis was performed using the Biostat Comprehensive Meta-Analysis Software version 2 (α = 0.05). The effect of conventional cement ( Glass Ionomer (GI), Resin Modified Glass Ionomer (RMGI) and zinc phosphate) was analyzed using descriptive analysis. The initial search yielded 376 articles, of which 26 were selected after a methodological assessment. Two reviewers independently extracted data and assessed the risk of bias. The results showed that the immediate or delay bond strength of the self-adhesive resin cement to zirconia has no significant difference with the bond strength of self-etch resin cement to zirconia. The immediate and delay bond strength of total-etch cement-zirconia was significantly lower than that of self-adhesive cement-zirconia (P = 0.00). A descriptive analysis of the selected articles showed that the bond strength of self-adhesive resin cement to zirconia was significantly higher than total-etch cement. The results of the meta-analysis showed that both self-adhesive and self-etch resin cement (if applied according to their manufacturer's instruction) are suitable for bonding to zirconia.
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Affiliation(s)
- Alireza Borouziniat
- Associate Professor, Dental Research Center, Mashhad Dental School, Mashhad, Iran
| | - Sara Majidinia
- Dental Materials Research Center, Mashhad Dental School, Mashhad, Iran
| | - Alireza Sarraf Shirazi
- Department of Pediatric Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Kahnemuee
- Department of Orthodontics, Zahedan Dental School, Zahedan University of Medical Science, Zahedan, Iran
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Lee H, Young Kim RJ, Seo DG. Shear bond strength of dual-cured resin cements on zirconia: The light-blocking effect of a zirconia crown. J Dent Sci 2024; 19:162-168. [PMID: 38303887 PMCID: PMC10829558 DOI: 10.1016/j.jds.2023.05.011] [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: 03/27/2023] [Revised: 05/08/2023] [Indexed: 02/03/2024] Open
Abstract
Abstract Background/purpose The presence of restorative material between resin cement and the light-curing unit can reduce light transmission. This study aimed to evaluate the effect of the light-blocking effect of zirconia crown on shear bond strength (SBS) between three dual-cured resin cements and the zirconia surface. Materials and methods Sixty zirconia specimens were prepared and divided into three groups according to the type of resin cement [RXU (RelyX Ultimate); SC2 (SmartCem2); MEC (Maxcem Elite Chroma)]. Each group was further divided into two subgroups, with or without a 1-mm-thick zirconia crown (n = 10). The specimens were light-cured from five different directions for 20 s each. All specimens were thermocycled 5000 times and subjected to SBS testing, followed by scanning electron microscope examination. Results The presence of a 1-mm-thick zirconia crown had no significant effect on the SBS in all resin cements. However, the SBS was significantly affected by type of resin cement. RXU showed the highest SBS (8.35 MPa with crown; 8.57 MPa without crown), followed by SC2 (5.48 MPa with crown; 5.57 without crown) and then MEC (3.37 MPa with crown; 4.04 MPa without crown. Fractured surfaces exhibited varying degrees of mixed failure patterns. Conclusion A 1-mm-thick zirconia crown material between the light source and the dual-cured resin cement did not significantly influence the SBS of the resin cements on the zirconia substrates. RXU exhibited the highest SBS regardless of zirconia crown coverage. With sufficient light-curing, dual-cured resin cements can be a good choice for zirconia crown cementation.
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Affiliation(s)
- Hyesoo Lee
- Seoul Kwon Dental Clinic, Seoul, South Korea
| | - Ryan Jin Young Kim
- Department of Dental Sciences, Dental Research Institute, Seoul National University School of Dentistry, Seoul, South Korea
| | - Deog-Gyu Seo
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University School of Dentistry, Seoul, South Korea
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Akar T, İçen G. Effect of Dentin and Zirconia Surface Treatments with Laser Irradiation Versus Sandblasting on the Bonding Ability of Zirconia. Photobiomodul Photomed Laser Surg 2023; 41:501-508. [PMID: 37651219 DOI: 10.1089/photob.2022.0154] [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] [Indexed: 09/02/2023] Open
Abstract
Objective: This study aimed to investigate the effects of laser irradiation applied to zirconia and tooth surfaces on shear bond strength (SBS) compared with acid etching and sandblasting. Background: The effect of laser irradiation on the bond strength between zirconia and adhesives is a controversial issue for dentin surface treatments. In addition, the effects of different combinations of surface treatments to increase adhesion on both the zirconia and dentin surfaces remain unclear. Materials and methods: A total of 90 tooth samples were assigned into groups according to various pretreatments: control group was left untreated, acid etching, and Erbium, Chromium:Yttrium Scandium Gallium Garnet (Er,Cr:YSGG) laser irradiation group (15 Hz, 2 W). In addition, the zirconia specimens were separated into three groups (n = 10) according to the different surface treatments performed: sandblasting (120 μm Al2O3), Er,Cr:YSGG laser (15 Hz, 2 W), and as untreated surface. The zirconia samples were cemented to the dentin surface using dual-cure resin cement and subjected to an SBS test at a speed of 0.5 mm/min under a universal testing machine until fractures occurred in the bonding surface. Results: The highest SBS values were observed in Group tooth acid (TA)-zirconia Er,Cr:YSGG laser (ZL), followed by Group tooth Er,Cr:YSGG laser (TL)-zirconia sandblasting (ZS) and Group TA-zirconia control (ZC). The lowest SBS values were found in Group TA-ZS. Significant intergroup difference was noted between Group TA-ZL, Group tooth control (TC)-ZC, Group TL-ZS, and Group TC-ZC. However, no significant difference was noted between Group TA-ZL, Group TL-ZS, and Group TA-ZC. Conclusions: Acid etching and laser treatments applied to the dentin and zirconia surfaces were found to be effective techniques for improving the zirconia-dentin bond, respectively. Clinical Trial Registration number: 33216249-604.01.02-E.24308.
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Affiliation(s)
- Türker Akar
- Department of Prosthodontics, Faculty of Dentistry, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Gülşah İçen
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
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Pinge S, Shetty R, Shetty S, Banga P, Zahid M. Zirconia monolithic veneers: A durable and cosmetic alternative to regular veneers? ADVANCES IN HUMAN BIOLOGY 2022. [DOI: 10.4103/aihb.aihb_5_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Malysa A, Wezgowiec J, Orzeszek S, Florjanski W, Zietek M, Wieckiewicz M. Effect of Different Surface Treatment Methods on Bond Strength of Dental Ceramics to Dental Hard Tissues: A Systematic Review. Molecules 2021; 26:molecules26051223. [PMID: 33668944 PMCID: PMC7956692 DOI: 10.3390/molecules26051223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/12/2021] [Accepted: 02/21/2021] [Indexed: 11/27/2022] Open
Abstract
For long-term successful use of ceramic materials in dental procedures, it is necessary to ensure reliable bonding of restorations to dental substrates. This can be achieved by the application of a proper luting cement and through additional surface conditioning. The present systematic review summarizes the most up-to-date evidence on the use of different surface modification methods to enhance the bond strength of dental ceramics to the hard tissues of the teeth. The authors of the review searched the Web of Science, Scopus, and MEDLINE databases to identify relevant articles published between 1 January 2010 and 1 January 2020. A total of 4892 records were identified, and after screening, the full text of 159 articles was evaluated, which finally resulted in the inclusion of 19 studies. The available reports were found to be heterogeneous in terms of materials and methodology, and therefore, only within-studies comparison was performed instead of comparison between studies. A statistically significant difference in the bond strength between the samples treated with different methods of surface conditioning, or between conditioned and nonconditioned samples, was revealed by most of the studies. Predominantly, the studies showed that a combination of mechanical and chemical methods was the most effective way of enhancing bond strength. Artificial aging and luting cement were also identified as the factors significantly influencing bond strength.
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Levartovsky S, Cartier L, Brand M, Blasbalg JJ, Pilo R. The Retentive Strength of Zirconium Oxide Crowns Cemented by Self-Adhesive Resin Cements before and after 6 Months of Aging. MATERIALS 2020; 13:ma13183998. [PMID: 32917039 PMCID: PMC7559412 DOI: 10.3390/ma13183998] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 08/28/2020] [Accepted: 09/05/2020] [Indexed: 12/02/2022]
Abstract
The aim of this study was to evaluate the retentive strength of zirconium oxide (yttria-stabilized tetragonal zirconia polycrystals (Y-TZP)) crown-copings treated by combined mechanical and chemical treatments and cemented by four types of self-adhesive resin cements (SARCs) to human prepared teeth, before and after six months of aging in water and thermocycling. A total of 120 molar teeth were mounted, prepared using a standardized protocol and digitally scanned, and Y-TZP copings were produced. Teeth were randomly assigned to four SARC groups. Prior to cementation, the intaglio surfaces of all crowns were sandblasted and then coated with Z-Prime™ Plus (Bisco Dental, Schaumburg, IL, USA). Post cementation, each cement group was subdivided into aged and non-aged groups. After aging, the cemented assemblies were tested for retentive strength using a universal testing machine. Failure analysis was conducted by inspecting all matched debonded surfaces of the teeth and crowns at 3× magnification. Aging treatment did not affect the retentive strength of the Y-TZP crown-copings (p = 0.918). The interaction between cement and aging was statistically significant (p = 0.024). No significant differences in the retentive strengths between the different SARCs were observed pre-aging (p = 0.776), whereas post-aging, Panavia SA (PAN; Kuraray Dental Co Ltd., Osaka, Japan) showed significantly higher strength than RelyX U-200 (RU200; 3M ESPE, Seefeld, Germany). The predominant failure mode was adhesive between the cement and dentin, followed by mixed mode failure.
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Liu X, Wang H, Yu S, Zhao Q, Shi Z, Cui Z, Zhu S. Construction of a silicate-based epitaxial transition film on a zirconia ceramic surface to improve the bonding quality of zirconia restorations. RSC Adv 2020; 10:32476-32484. [PMID: 35516504 PMCID: PMC9056653 DOI: 10.1039/d0ra04735j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/26/2020] [Indexed: 11/21/2022] Open
Abstract
The effect of a silicate-based epitaxial transition film on zirconia produced by a silicate solution during zirconia-resin bonding was investigated. The airborne-particle abraded zirconia was placed in different concentrations of silicate solutions and heated at 50 °C. The silicate transition film was characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), energy-dispersive X-ray spectroscopy (EDX), contact angle measurement and profilometry. The silicate-based epitaxial transition film was successfully constructed on the surface of zirconia, and the surface morphology and composition of zirconia changed. After coupling with KH570 hydrolysate, the shear bond strength (SBS) of zirconia-resin after either 24 h water storage or 5000 thermal cycles can be significantly improved by a silicate-based epitaxial transition film on the surface of zirconia, and all the samples had no cytotoxicity. This may provide a new strategy for improving the bonding quality of zirconia restorations.
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Affiliation(s)
- Xiuju Liu
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University Changchun 130021 P. R. China
| | - Han Wang
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University Changchun 130021 P. R. China
| | - Shiyang Yu
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University Changchun 130021 P. R. China
| | - Qi Zhao
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University Changchun 130021 P. R. China
| | - Zuosen Shi
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University Changchun 130021 P. R. China
| | - Zhanchen Cui
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University Changchun 130021 P. R. China
| | - Song Zhu
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University Changchun 130021 P. R. China
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De Angelis F, D'Arcangelo C, Buonvivere M, Rondoni GD, Vadini M. Shear bond strength of glass ionomer and resin-based cements to different types of zirconia. J ESTHET RESTOR DENT 2020; 32:806-814. [PMID: 32810368 DOI: 10.1111/jerd.12638] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/21/2020] [Accepted: 07/26/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To investigate the shear bond strength (SBS) of a glass ionomer (GI) cement, an 10-methacryloyloxy-decyl dihydrogen phosphate (MDP)-based adhesive resin cement (MDP-based AC), an MDP-based self-adhesive resin cement (MDP-based SAC), an MDP-free self-adhesive resin cement (MDP-free SAC), and a resin-modified GI (RMGI) cement to a 3 mol% yttria-stabilized (3Y-TZP) and a 5 mol% yttria partially stabilized zirconia (5Y-PSZ). MATERIALS AND METHODS Fifty blocks were produced using 3Y-TZP and 5Y-PSZ, assigned to subgroups based on the five cements investigated (n = 10) and luted to cylindrical specimens of the same substrate. Each specimen was loaded in a SBS apparatus to failure. Mean SBS (MPa) values and standard deviations were calculated. Data were analyzed using a two-way analysis of variance and Tukey tests (α = .05). Failed specimens were subjected to fractographic analysis. RESULTS MDP-based AC and MDP-based SAC cements displayed the highest SBS values with both the substrates; GI cement showed the lowest. RMGI and MDP-free SAC cements performed better with 3Y-TZP than with 5Y-PSZ. Fractographic analysis revealed only adhesive and mixed failures. CONCLUSIONS MDP-based AC and MDP-based SAC cements are suitable for both 3Y-TZP and 5Y-PSZ. MDP-free SAC and RMGI cements are adequate choices for 3Y-TZP, but seem less effective with 5Y-PSZ. CLINICAL SIGNIFICANCE MDP-based SACs appear to be as reliable as MDP-based ACs for both 3Y-TZP and 5Y-PSZ cementation. Specifically, for 5Y-PSZ cementation, resin-based MDP-free SACs do not seem to guarantee predictable results in terms of SBS.
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Affiliation(s)
- Francesco De Angelis
- Unit of Restorative Dentistry and Endodontics, Department of Medical, Oral and Biotechnological Science, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini, 31, Chieti, Italy
| | - Camillo D'Arcangelo
- Unit of Restorative Dentistry and Endodontics, Department of Medical, Oral and Biotechnological Science, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini, 31, Chieti, Italy
| | - Matteo Buonvivere
- Unit of Restorative Dentistry and Endodontics, Department of Medical, Oral and Biotechnological Science, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini, 31, Chieti, Italy
| | | | - Mirco Vadini
- Unit of Restorative Dentistry and Endodontics, Department of Medical, Oral and Biotechnological Science, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini, 31, Chieti, Italy
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Magalhães APR, Ramos-Tonello CM, Galli MZ, Gomes OP, Pacheco LE, Fortulan CA, Lisboa-Filho PN, Mondelli RFL, Furuse AY, Borges AFS. Yttria-stabilized tetragonal zirconia polycrystal/resin luting agent bond strength: Influence of Titanium dioxide nanotubes addition in both materials. J Prosthodont Res 2020; 64:408-416. [PMID: 32059955 DOI: 10.1016/j.jpor.2019.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/21/2019] [Accepted: 11/18/2019] [Indexed: 11/29/2022]
Abstract
PURPOSE To evaluate the shear bond strength (SBS) between Y-TZP and a resin luting agent, after 1 of 2 enhancing strategies with TiO2--nts was applied, either to the resin luting agent or the Y-TZP mass, in different concentrations. METHODS In the Strategy TiO2-nts on ceramic, the resin luting agent Panavia F2.0™ (Kuraray) and an experimental Y-TZP with added concentrations of TiO2--nts (0%, 1%, 2%, and 5% vol/vol) and a commercial Y-TZP, comprised 5 different groups (n = 10). In the Strategy TiO2-nts on cement, the resin luting agent RelyX U200™ (3 M ESPE) was added with different concentrations of TiO2--nts (0%, 0.3%, 0.6%, 0.9% wt/wt) luted to a commercial Y-TZP, comprising 4 different groups (n = 10). The Y-TZP discs were included in acrylic bases, and a cylinder (3 × 3 mm) of the correspondent luting agent for each respective group was applied over them. After 24 h, specimens were subjected to SBS assessments in a universal testing machine. Field emission scanning electron microscopy and energy dispersive X-ray spectroscopy analyses were also performed on Y-TZP surfaces. Data were analyzed via analysis of variance and Tukey tests (α = 0.05). RESULTS TiO2-nts on ceramic influenced the bond strength significantly, but not linearly; TiO2-nts on cement did not influence bond strength when analyzed separately, nor in comparison with the first. CONCLUSION Y-TZP enhancements with TiO2-nts led to a higher SBS with Panavia F2.0, a 5% TiO2--nt concentration presented the highest bond strength. Modified Rely X U200 did not improve SBS.
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Affiliation(s)
- Ana Paula Rodrigues Magalhães
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP). Al. Octávio Pinheiro Brisola, 9-75, Vila Universitária, 17012-901 Bauru, SP, Brazil
| | - Carla Müller Ramos-Tonello
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP). Al. Octávio Pinheiro Brisola, 9-75, Vila Universitária, 17012-901 Bauru, SP, Brazil
| | - Mateus Zamora Galli
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP). Al. Octávio Pinheiro Brisola, 9-75, Vila Universitária, 17012-901 Bauru, SP, Brazil
| | - Orisson Ponce Gomes
- Department of Mechanical Engineering, University of São Paulo (USP). Avenida dos Trabalhadores São-carlense, 400, Parque Arnold Schimidt, 13566-590 São Carlos, SP, Brazil
| | - Leandro Edgar Pacheco
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP). Al. Octávio Pinheiro Brisola, 9-75, Vila Universitária, 17012-901 Bauru, SP, Brazil
| | - Carlos Alberto Fortulan
- Physics Department, Faculty of Sciences, State University of São Paulo (UNESP). Av. Eng. Luís Edmundo Carrijo Coube, 14, Nucleo Res. Pres. Geisel, 17033-360 Bauru, SP, Brazil
| | - Paulo Noronha Lisboa-Filho
- Department of Mechanical Engineering, University of São Paulo (USP). Avenida dos Trabalhadores São-carlense, 400, Parque Arnold Schimidt, 13566-590 São Carlos, SP, Brazil
| | - Rafael Francisco Lia Mondelli
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP). Al. Octávio Pinheiro Brisola, 9-75, Vila Universitária, 17012-901 Bauru, SP, Brazil
| | - Adilson Yoshio Furuse
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP). Al. Octávio Pinheiro Brisola, 9-75, Vila Universitária, 17012-901 Bauru, SP, Brazil
| | - Ana Flávia Sanches Borges
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP). Al. Octávio Pinheiro Brisola, 9-75, Vila Universitária, 17012-901 Bauru, SP, Brazil.
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Cuevas-Suárez CE, de Oliveira da Rosa WL, Vitti RP, da Silva AF, Piva E. Bonding Strength of Universal Adhesives to Indirect Substrates: A Meta-Analysis of in Vitro Studies. J Prosthodont 2020; 29:298-308. [PMID: 31994803 DOI: 10.1111/jopr.13147] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2020] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To evaluate the in vitro bond strength of universal adhesive systems to indirect substrates. MATERIAL AND METHODS Two reviewers performed a literature search up to March 2018 in seven databases: PubMed, Web of Science, SciELO, Scopus, LILACS, IBECS, and BBO. The review included studies that compared the bond strength of universal adhesives and well-established material-specific primers to indirect substrates: lithium disilicate ceramic, yttrium-stabilized zirconium dioxide ceramic, leucite-reinforced ceramic, feldspathic porcelain, polymer infiltrated ceramic material, resin composite or metal alloys. Analyses were carried out using RevMan 5.3.5. A global comparison was performed with the standardized mean difference using a random-effects models at a significance level of p < 0.05. RESULTS A total of 45 studies were included in the qualitative analysis, and the meta-analysis was performed with 42 studies. Bond strength to glass-based ceramics and alloys was improved with the use of a specific-primer as separate step before the bonding procedures (lithium disilicate, p < 0.001; alloys, p < 0.001). The bond strength to zirconium substrates was improved with the use of universal adhesives (p < 0.001). For bond strength to composite resin as indirect substrate, universal adhesives performed in a manner similar to that of the material-specific primer (p = 0.11). CONCLUSIONS The clinical procedure of luting zirconia and resin composite restorations could be simplified by using single-bottle universal adhesives. However, the ability of universal adhesives to achieve an adequate and durable bond to glass-based ceramics and alloys appears to be limited.
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Affiliation(s)
- Carlos Enrique Cuevas-Suárez
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, Circuito Ex Hacienda La Concepción S/N, San Agustín Tlaxiaca, Hgo, 42160, Mexico
| | - Wellington Luiz de Oliveira da Rosa
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Goncalves Cháves 457, Pelotas, RS, 96015-560, Brazil
| | - Rafael Pino Vitti
- Department of Prosthodontics, School of Dentistry, University of Taubaté, Quatro de Março, 432, Taubaté, 12020-270, Brazil
| | - Adriana Fernandes da Silva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Goncalves Cháves 457, Pelotas, RS, 96015-560, Brazil
| | - Evandro Piva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Goncalves Cháves 457, Pelotas, RS, 96015-560, Brazil
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Bond durability when applying phosphate ester monomer-containing primers vs. self-adhesive resin cements to zirconia: Evaluation after different aging conditions. J Prosthodont Res 2019; 64:193-201. [PMID: 31690540 DOI: 10.1016/j.jpor.2019.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/13/2019] [Accepted: 06/13/2019] [Indexed: 11/21/2022]
Abstract
PURPOSE This study aimed to evaluate bond durability when applying 2 phosphate ester monomer-containing self-adhesive resin cements alone, versus a combination of phosphate ester monomer-containing primer conditioning plus 2 conventional resin cements requiring primers, to zirconia after different artificial aging methods. METHODS We cemented air-abraded zirconia plates to composite resin cylinders with self-adhesive resin cements (MS; RU) alone or cemented them with traditional resin cements (ZRV; ZVN) after pre-conditioning with a zirconia primer. A shear bond strength (SBS) test were performed after subjecting them to 19 different aging conditions (n = 15) comprising 30,000× thermocycles, air storage at room temperature (RT), water storage at RT, or at 37 °C for 24 h, 1 week, 1, 3, 6, and 12 months. Zirconia powders mixed with zirconia primer or 2 self-adhesive resin cements were characterized by X-ray photoelectron spectroscopy. RESULTS Groups MS and ZVN obtained the highest SBS after all of aging methods. SBS after 6 months of storage was similar to SBS after 24 h of storage, while both were higher than SBS after 1 year of storage. Water storage at 37 °C provided higher SBS than RT water storage did. We detected a Zr-O-P bond in both self-adhesive resin cement/zirconia powder mixtures. CONCLUSIONS Application of self-adhesive resin cements alone could be an alternative to pre-conditioning with a zirconia primer followed by the application of conventional resin cements. Formation of Zr-O-P bonds contributed to the bonding improvement of self-adhesive resin cements. Different aging conditions affected SBS values.
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Lima RBW, Barreto SC, Alfrisany NM, Porto TS, De Souza GM, De Goes MF. Effect of silane and MDP-based primers on physico-chemical properties of zirconia and its bond strength to resin cement. Dent Mater 2019; 35:1557-1567. [PMID: 31395450 DOI: 10.1016/j.dental.2019.07.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 05/17/2019] [Accepted: 07/16/2019] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To evaluate the effect of surface treatments on yttria-tetragonal zirconia polycrystal (Y-TZP) characteristics and on resin-mediated zirconia bond. METHODS Y-TZP slabs were grit blasted with 45μm alumina or with 30μm silica-coated alumina particles. The chemical treatments were: no-chemical treatment (NC), silane-containing primer (SP), MDP (10-Methacryloyloxydecyl dihydrogen phosphate) and silane-containing primer (MPS), MDP-containing primer (MP) and MDP and silane-containing adhesive (MPA). Contact angle as a function of surface roughness (θm) and surface roughness parameter (Sdr) were measured using Fringe Projection Phase Shifting (FPPS). Surface free energy (γsTOT) was calculated with a goniometer. Chemical interaction between primers/adhesive and zirconia was analyzed using time-of-flight secondary ion mass spectrometry (ToF-SIMS). Resin cement microshear bond strength (μSBS) was analyzed at either 24-h or 8-months water storage (37°C). θm values, Sdr values, γsTOT and μSBS values were analyzed using Analysis of variance (ANOVA) and post hoc Tukey test (α=0.05). RESULTS Chemical treatment had an effect (p<0.001) on all surface parameters analyzed: θm, γsTOT and Sdr. MP-treated group showed higher incidence of P-O-Zr bonds than the other groups, indicating more chemical linkages. Grit blasting (p<0.001) and the interaction chemical treatment*storage (p<0.001) did not affect μSBS; all silane-containing primers showed significant drop in μSBS after aging. SIGNIFICANCE MDP and/or silane-based solutions affect the physicochemical properties of blasted-zirconia. An MDP-based primer is fundamental to achieve a stable resin-zirconia bonding, but the chemical reactivity of MDP is impaired when this molecule is present in a multicomponent system.
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Affiliation(s)
- Renally Bezerra Wanderley Lima
- Department of Restorative Dentistry (Dental Materials Area), Piracicaba Dental School, University of Campinas - UNICAMP, São Paulo, Brazil.
| | - Suelem Chasse Barreto
- Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas - UNICAMP, São Paulo, Brazil.
| | - Najm Mohsen Alfrisany
- Department of Comprehensive Care, School of Dental Medicine, Case Western Reserve University, OH, USA.
| | - Thiago Soares Porto
- Department of Comprehensive Care, School of Dental Medicine, Case Western Reserve University, OH, USA.
| | | | - Mario Fernando De Goes
- Department of Restorative Dentistry (Dental Materials Area), Piracicaba Dental School, University of Campinas - UNICAMP, São Paulo, Brazil.
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Scaminaci Russo D, Cinelli F, Sarti C, Giachetti L. Adhesion to Zirconia: A Systematic Review of Current Conditioning Methods and Bonding Materials. Dent J (Basel) 2019; 7:dj7030074. [PMID: 31374820 PMCID: PMC6784479 DOI: 10.3390/dj7030074] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/13/2019] [Accepted: 07/06/2019] [Indexed: 11/16/2022] Open
Abstract
Background. Reliable bonding between resin composite cements and high strength ceramics is difficult to achieve because of their chemical inertness and lack of silica content that makes etching impossible. The purpose of this review is to classify and analyze the existing methods and materials suggested to improve the adhesion of zirconia to dental substrate by using composite resins, in order to explore current trends in surface conditioning methods with predictable results. Methods. The current literature, examining the bond strength of zirconia ceramics, and including in vitro studies, clinical studies, and a systematic review, was analyzed. The research in the literature was carried out using PubMed and Cochrane Library databases, only papers in English, published online from 2013 to 2018. The following keywords and their combinations were used: Zirconia, 3Y-TZP, Adhesion, Adhesive cementation, Bonding, Resin, Composite resin, Composite material, Dentin, Enamel. Results. Research, in PubMed and Cochrane Library databases, provided 390 titles with abstracts. From these, a total of 93 publications were chosen for analysis. After a full text evaluation, seven articles were discarded. Therefore, the final sample was 86, including in vitro, clinical studies, and one systematic review. Various adhesive techniques with different testing methods were examined. Conclusions. Airborne-particle abrasion and tribo-chemical silica coating are the pre-treatment methods with more evidence in the literature. Increased adhesion could be expected after physico-chemical conditioning of zirconia. Surface contamination has a negative effect on adhesion. There is no evidence to support a universal adhesion protocol.
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Affiliation(s)
- Daniele Scaminaci Russo
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Francesca Cinelli
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Chiara Sarti
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Luca Giachetti
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy.
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Rigos AE, Dandoulaki C, Kontonasaki E, Kokoti M, Papadopoulou L, Koidis P. Effect of Immediate Dentin Sealing on the Bond Strength of Monolithic Zirconia to Human Dentin. Oper Dent 2019; 44:E167-E179. [DOI: 10.2341/18-198-l] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
Objective:
This study evaluated the shear bond strength (SBS) of pretreated monolithic zirconia surfaces bonded to human dentin following immediate dentin sealing (IDS) using two different self-adhesive resin luting agents.
Methods and Materials:
Sixty intact human third molars were collected, stored, sectioned appropriately, and molded according to ISO 29022:2013, resulting in 120 dentin specimens. Ceramic cylindrical specimens were fabricated using CAD/CAM technology and sintered as recommended (final bonding area A=2.56 mm2). Specimens were randomly assigned to eight groups (15≥n≥14) depending on dentin conditioning method (IDS or delayed dentin sealing [DDS]), zirconia surface pretreatment (airborne particle abrasion [APA] with 50 μm Al2O3 particles at 3 bar for 10 seconds or tribochemical silica coating [TBC] with 30 μm CoJet particles at 2.8 bar for 10 seconds), and adhesive luting agent type (Panavia F2.0 [PAN] or PermaCem Dual Smartmix [PER]). Bonded specimens were water-stored (37°C, 24 hours) and subjected to SBS testing (50-kgF load cell, 1 mm/min). Fracture type was evaluated with stereomicroscopy. Data (MPa) were statistically analyzed using three-way analysis of variance (α=0.05).
Results:
All factors significantly affected SBS values (p<0.001). Dentin conditioning method presented the greatest effect. Mean SBS values ranged from 12.603 MPa (PER-APA-DDS) to 40.704 MPa (PER-TBC-IDS). Based on the fracture type, adhesive failures at the luting agent–zirconia interface were the least common.
Conclusion:
Bonding strategies for monolithic zirconia restorations could potentially benefit from IDS, regardless of the adhesive luting agent system used.
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Affiliation(s)
- AE Rigos
- Athanasios E Rigos, Doctor of Dental Surgery, Department of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - C Dandoulaki
- Chrysoula Dandoulaki, DDS, Prosthodontics, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - E Kontonasaki
- Eleana Kontonasaki, DDS, MSc, PhD, Prosthodontics, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - M Kokoti
- Maria Kokoti, DDS, PhD, Prosthodontics, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - L Papadopoulou
- Lambrini Papadopoulou, BSc, MSc, PhD, Mineralogy-Petrology-Economic Geology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P Koidis
- Petros Koidis, DDS, MS, PhD, Prosthodontics, Aristotle University of Thessaloniki Prosthodontics, Thessaloniki, Greece
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15
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Martins FV, Mattos CT, Cordeiro WJB, Fonseca EM. Evaluation of zirconia surface roughness after aluminum oxide airborne-particle abrasion and the erbium-YAG, neodymium-doped YAG, or CO 2 lasers: A systematic review and meta-analysis. J Prosthet Dent 2019; 121:895-903.e2. [PMID: 30711290 DOI: 10.1016/j.prosdent.2018.07.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 11/18/2022]
Abstract
STATEMENT OF PROBLEM Veneer chipping and crown decementation are the most frequent failures in restorations using zirconia as an infrastructure. Increasing the roughness of the zirconia surface has been suggested to address this problem. PURPOSE The purpose of this systematic review and meta-analysis was to evaluate yttria-stabilized tetragonal zirconia polycrystal surface roughness, produced with aluminum oxide airborne-particle abrasion and the erbium yttrium aluminum garnet (YAG), neodymium-doped YAG, or CO2 lasers. MATERIAL AND METHODS This study was based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist. The review identified relevant studies through December 2017 with no limit on the publication year in the search databases: Web of Science, Scopus, and MEDLINE via PubMed. The selected studies were submitted to a risk of bias assessment. The means and standard deviations of roughness were evaluated for the meta-analysis using Review Manager software. RESULTS The 17 studies that met all inclusion criteria presented a medium risk of bias. All the treatment methods tested were able to create a roughness on the yttria-stabilized tetragonal zirconia polycrystal surface. The I2 test values presented a high heterogeneity among the studies. CONCLUSIONS The presintered specimens submitted to airborne-particle abrasion had higher surface roughness compared with abrasion after the sintering process. Irradiation with the neodymium-doped YAG and CO2 lasers was destructive to the zirconia surfaces. The erbium laser used with lower energy intensity appears to be a promising method for surface treatment.
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Affiliation(s)
- Felipe V Martins
- Post-Graduate Student, Federal Fluminense University (UFF), Rio de Janeiro, Brazil.
| | - Cláudia T Mattos
- Adjunct Professor, Department of Orthodontics, Federal Fluminense University (UFF), Rio de Janeiro, Brazil
| | - Wayne J B Cordeiro
- Adjunct Professor, Department of Dental Technique, Federal Fluminense University (UFF), Rio de Janeiro, Brazil
| | - Edgard M Fonseca
- Adjunct Professor, Department of Dental Technique, Federal Fluminense University (UFF), Rio de Janeiro, Brazil
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Nagarkar S, Theis-Mahon N, Perdigão J. Universal dental adhesives: Current status, laboratory testing, and clinical performance. J Biomed Mater Res B Appl Biomater 2019; 107:2121-2131. [PMID: 30637932 DOI: 10.1002/jbm.b.34305] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/11/2018] [Accepted: 12/19/2018] [Indexed: 11/06/2022]
Abstract
Increasing demand for simplified and user-friendly adhesive systems has led to the development of a new class of adhesives termed as Universal Adhesives (UAs). The term "Universal" reflects manufacturers' claims that these adhesives can be applied with any adhesion strategy and offer the versatility of use with a variety of direct and indirect restorative materials. The aim of this review was to synthesize the literature regarding the current status of UAs, their adhesion potential to various substrates and their performance in different restorative situations. In vitro studies, clinical trials and systematic reviews were identified utilizing controlled vocabulary and keyword searches in Medline and EMBASE databases. About 282 studies (272 in vitro studies; 11 clinical studies) were included. Available laboratory and clinical evidence does not support the claim that UAs can be used with any adhesive strategy. Although, they can chemically bond to various tooth and direct/indirect restorative substrates, the stability of this bond is material-dependent and subject to hydrolytic degradation. Hence, additional measures are still needed to ensure long-term durability. which undermines the versatility of UAs. The lack of long-term data regarding the clinical performance of UAs further complicates clinical decision-making. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 2121-2131, 2019.
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Affiliation(s)
- Sanket Nagarkar
- Park Dental Group, Minneapolis, Minnesota, and Clinical Research Assistant Professor (affiliated), Department of Restorative Sciences, University of Minnesota, Minneapolis, Minnesota
| | | | - Jorge Perdigão
- Division of Operative Dentistry, Department of Restorative Sciences, University of Minnesota, Minneapolis, Minnesota
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Steiner R, Heiss-Kisielewsky I, Schwarz V, Schnabl D, Dumfahrt H, Laimer J, Steinmassl O, Steinmassl PA. Zirconia Primers Improve the Shear Bond Strength of Dental Zirconia. J Prosthodont 2019; 29:62-68. [PMID: 30624832 DOI: 10.1111/jopr.13013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2018] [Indexed: 02/04/2023] Open
Abstract
PURPOSE Various resin cements and priming agents are available for adhesive luting of zirconia restorations. The purpose of this study was to investigate how cement type and priming protocol affect the shear bond strength on zirconia ceramics. MATERIALS AND METHODS Yttria-stabilized tetragonal zirconia polycrystalline ceramic cylinders were bonded to flat zirconia ceramic surfaces using 7 commercially available resin cements. Ten specimens of each cement group were pretreated with a universal primer, and 10 specimens per group were bonded without pretreatment. In addition, 10 specimens per group were pretreated with system-specific zirconia primers, which were available for 3 cements. Altogether, 170 bonded specimens were water-stored, thermal-cycled, and then submitted to shear bond strength tests. The shear bond strength and the fracture types were documented. Differences in shear bond strengths were assessed using 2-way ANOVA with post-hoc test (α = 0.05). A point-biserial correlation was run between the fracture patterns and the shear bond strengths. RESULTS The mean shear bond strengths of cements in the unprimed group showed large variations between 2.52 ± 3.01 (mean ± SD) MPa and 33.15 ± 7.35 MPa. Pretreating the specimens with a universal primer improved the shear bond strengths significantly in all groups (p < 0.05) with a range of 21.80 ± 12.51 to 57.20 ± 11.40 MPa. The system-specific primers also improved the shear bond strength significantly, compared to the unprimed group (p < 0.01); however, only one system-specific primer achieved a shear bond strength superior to the universal primer (p < 0.01). There was also a statistical correlation between the fracture type and the shear bond strength (p < 0.0005), with cohesively fractured specimens showing higher shear bond strengths (37.24 ± 19.87 MPa) than adhesively fractured specimens (23.10 ± 17.65 MPa) (p < 0.001). CONCLUSION Using universal primer can enhance the maximal shear bond strength of zirconia.
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Affiliation(s)
- René Steiner
- University Hospital for Dental Prosthetics and Restorative Dentistry, Medical University of Innsbruck, Austria
| | - Irene Heiss-Kisielewsky
- University Hospital for Dental Prosthetics and Restorative Dentistry, Medical University of Innsbruck, Austria
| | - Vincent Schwarz
- University Hospital for Dental Prosthetics and Restorative Dentistry, Medical University of Innsbruck, Austria
| | - Dagmar Schnabl
- University Hospital for Dental Prosthetics and Restorative Dentistry, Medical University of Innsbruck, Austria
| | - Herbert Dumfahrt
- University Hospital for Dental Prosthetics and Restorative Dentistry, Medical University of Innsbruck, Austria
| | - Johannes Laimer
- University Hospital for Cranio-Maxillofacial and Oral Surgery, Medical University of Innsbruck, Austria
| | - Otto Steinmassl
- University Hospital for Cranio-Maxillofacial and Oral Surgery, Medical University of Innsbruck, Austria
| | - Patricia-Anca Steinmassl
- University Hospital for Dental Prosthetics and Restorative Dentistry, Medical University of Innsbruck, Austria
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18
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Moura DMD, do Nascimento Januário AB, de Araújo AMM, de Oliveira Dal Piva AM, Özcan M, Bottino MA, Souza ROA. Effect of primer-cement systems with different functional phosphate monomers on the adhesion of zirconia to dentin. J Mech Behav Biomed Mater 2018; 88:69-77. [DOI: 10.1016/j.jmbbm.2018.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 11/28/2022]
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19
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Souza R, Barbosa F, Araújo G, Miyashita E, Bottino MA, Melo R, Zhang Y. Ultrathin Monolithic Zirconia Veneers: Reality or Future? Report of a Clinical Case and One-year Follow-up. Oper Dent 2018; 43:3-11. [PMID: 29284106 DOI: 10.2341/16-350-t] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Yttria-stabilized polycrystalline zirconia ceramics have greatly advanced over the past few years. High-translucent zirconia is a newly introduced ceramic that affords high strength and esthetics and that has significantly increased the clinical indications of monolithic zirconia restorations. Thus, the purpose of this case report was to evaluate the performance of ultrathin monolithic zirconia veneers adhesively luted to enamel surfaces after minimally invasive preparations; in addition, we aimed at presenting a clinical protocol for zirconia surface treatment in order to promote bonding effectiveness to resin cement. This type of restoration presented very acceptable esthetic results and decreased the risk of fracturing the veneer during try-in and clinical use. The results were still satisfactory after one-year follow-up. However, randomized, prospective, controlled clinical trials are required to determine the long-term clinical durability of this treatment.
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20
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Araújo AMMD, Januário ABDN, Moura DMD, Tribst JPM, Özcan M, Souza ROA. Can the Application of Multi-Mode Adhesive be a Substitute to Silicatized/Silanized Y-TZP Ceramics? Braz Dent J 2018; 29:275-281. [DOI: 10.1590/0103-6440201801862] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 05/08/2018] [Indexed: 11/22/2022] Open
Abstract
Abstract This study evaluated the effectiveness of a multi-mode adhesive (SBU-Scotch Bond Universal/3M) as a substitute for silica coating and silane application on the bonding of zirconia ceramics to resin cement. One-hundred and twenty sintered zirconia ceramic blocks (5 x 5 x 5 mm) were obtained, finished by grounding with silicon carbide paper (#600, #800, #1000 and #1200) and randomly divided into 12 groups (n=10) in accordance with the factors “surface treatment” (ScSi - silicatization + silanization; ScSBU - silicatization + SBU; SBU - SBU without photoactivation and SBUp - SBU photoactivated) and “ceramic” (Lava / 3M ESPE, Ceramill Zirconia / Amann Girrbach and Zirkonzahn / Zirkonzahn). Dual resin cement cylinders (RelyX Ultimate/3M ESPE) were subsequently produced in the center of each block using a silicon matrix (Ø=2 mm, h=5 mm) and photoactivated for 40 s (1200 mW/cm2). The samples were stored for 30 days in distilled water (37ºC) and submitted to shear bond strength test (1 mm/min, 100 KgF). Data (MPa) were analyzed under ANOVA (2 levels) and Tukey test (5%). Complementary analyzes were also performed. ANOVA revealed that only the factor “surface treatment” was significant (p=0.0001). The ScSi treatment (14.28A) promoted statistically higher bond strength values than the other ScSBU (9.03B), SBU (8.47B) and SBUp (7.82B), which were similar to each other (Tukey). Failure analysis revealed that 100% of the failures were mixed. The silica coating followed by the silanization promoted higher bond strength values of resin cement and ceramic, regardless of the zirconia ceramic or SBU.
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Someya T, Kinoshita H, Harada R, Kawada E, Takemoto S. Effects of calcium hydroxide reagent on the bond strength of resin cements to root dentin and the retention force of FRC posts. Dent Mater J 2017; 36:630-637. [PMID: 28566675 DOI: 10.4012/dmj.2016-355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to determine the effects of calcium hydroxide (Ca(OH)2) treatment on bond strength of resin cements to root dentin and retention force of fiber-reinforced composite (FRC) posts. Bovine root dentin was endodontically prepared and treated with Ca(OH)2 for 7 days. Root dentin for bond strength test was adhered to resin-composite with resin cements. For pull-out test, posts consisting of FRC posts and resin-composites were fabricated and cemented to root. Shear bond and pull-out tests were performed using a universal testing machine. No significant differences in bond strength and post retention force were found between Ca(OH)2 treated and untreated groups. Significant differences were found among the cements. A positive correlation was indicated between bond strength of cements and retention force of FRC posts. In conclusion, Ca(OH)2 treatment on root dentin did not affect bond strength of resin cements and retention force of FRC posts.
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Affiliation(s)
- Tomoko Someya
- Department of Dental Materials Science, Tokyo Dental College.,Oral Health Science Center, Tokyo Dental College
| | | | - Rino Harada
- Department of Dental Materials Science, Tokyo Dental College.,Oral Health Science Center, Tokyo Dental College
| | - Eiji Kawada
- Department of Dental Materials Science, Tokyo Dental College
| | - Shinji Takemoto
- Department of Dental Materials Science, Tokyo Dental College.,Oral Health Science Center, Tokyo Dental College
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Campos F, Valandro LF, Feitosa SA, Kleverlaan CJ, Feilzer AJ, de Jager N, Bottino MA. Adhesive Cementation Promotes Higher Fatigue Resistance to Zirconia Crowns. Oper Dent 2017; 42:215-224. [DOI: 10.2341/16-002-l] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
Objective: The aim of this study was to investigate the influence of the cementation strategy on the fatigue resistance of zirconia crowns. The null hypothesis was that the cementation strategy would not affect the fatigue resistance of the crowns.
Methods and Materials: Seventy-five simplified molar tooth crown preparations were machined in glass fiber–filled epoxy resin. Zirconia crowns were designed (thickness=0.7 mm), milled by computer-aided design/computer-aided manufacturing, and sintered, as recommended. Crowns were cemented onto the resin preparations using five cementation strategies (n=15): ZP, luting with zinc phosphate cement; PN, luting with Panavia F resin cement; AL, air particle abrasion with alumina particles (125 μm) as the crown inner surface pretreatment + Panavia F; CJ, tribochemical silica coating as crown inner surface pretreatment + Panavia F; and GL, application of a thin layer of porcelain glaze followed by etching with hydrofluoric acid and silanization as crown inner surface pretreatment + Panavia F. Resin cement was activated for 30 seconds for each surface. Specimens were tested until fracture in a stepwise stress fatigue test (10,000 cycles in each step, 600 to 1400 N, frequency of 1.4 Hz). The mode of failure was analyzed by stereomicroscopy and scanning electron microscopy. Data were analyzed by Kaplan-Meier and Mantel-Cox (log rank) tests and a pairwise comparison (p<0.05) and by Weibull analysis.
Results: The CJ group had the highest load mean value for failure (1200 N), followed by the PN (1026 N), AL (1026 N), and GL (1013 N) groups, while the ZP group had the lowest mean value (706 N). Adhesively cemented groups (CJ, AL, PN, and GL) needed a higher number of cycles for failure than the group ZP did. The groups' Weibull moduli (CJ=5.9; AL=4.4; GL=3.9; PN=3.7; ZP=2.1) were different, considering the number of cycles for failure data. The predominant mode of failure was a fracture that initiated in the cement/zirconia layer. Finite element analysis showed the different stress distribution for the two models.
Conclusion: Adhesive cementation of zirconia crowns improves fatigue resistance.
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Byeon SM, Lee MH, Bae TS. Shear Bond Strength of Al₂O₃ Sandblasted Y-TZP Ceramic to the Orthodontic Metal Bracket. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E148. [PMID: 28772508 PMCID: PMC5459165 DOI: 10.3390/ma10020148] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 01/30/2017] [Accepted: 02/05/2017] [Indexed: 12/04/2022]
Abstract
As the proportion of adult orthodontic treatment increases, mainly for aesthetic reasons, orthodontic brackets are directly attached to yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) restorations. This, study analyzed the shear bond strength (SBS) between various surface treated Y-TZP and orthodontic metal brackets. The Y-TZP specimens were conditioned by 110 μm Al₂O₃ sandblasting, or sandblasting followed by coating with one of the primers (silane, MDP, or an MDP-containing silane primer). After surface treatment, the orthodontic metal bracket was bonded to the specimen using a resin cement, and then 24 h storage in water and thermal cycling (5000 cycles, 5-55 °C), SBS was measured. Surface roughness was analyzed for surface morphology, and X-ray photoelectron spectroscopy (XPS) was employed for characterization of the chemical bond between the Y-TZP and the MDP-based primers (MDP, MDP containing silane primer). It was found that after surface treatment, the surface roughness of all groups increased. The groups treated with 110 μm Al₂O₃ sandblasting and MDP, or MDP-containing silane primer showed the highest SBS values, at 11.92 ± 1.51 MPa and 13.36 ± 2.31 MPa, respectively. The SBS values significantly decreased in all the groups after thermal cycling. Results from XPS analysis demonstrated the presence of chemical bonds between Y-TZP and MDP. Thus, the application of MDP-based primers after Al₂O₃ sandblasting enhances the resin bond strength between Y-TZP and the orthodontic metal bracket. However, bonding durability of all the surface-treated groups decreased after thermal cycling.
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Affiliation(s)
- Seon Mi Byeon
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Chonbuk National University, 567 Baeckje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea.
| | - Min Ho Lee
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Chonbuk National University, 567 Baeckje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea.
| | - Tae Sung Bae
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Chonbuk National University, 567 Baeckje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea.
- Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, 20 Geonji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do 54907, Korea.
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Rocha RFV, Anami LC, Campos TMB, Melo RMD, Souza RODAE, Bottino MA. Bonding of the Polymer Polyetheretherketone (PEEK) to Human Dentin: Effect of Surface Treatments. Braz Dent J 2016; 27:693-699. [PMID: 27982181 DOI: 10.1590/0103-6440201600796] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/24/2016] [Indexed: 11/22/2022] Open
Abstract
Polyetheretherketone (PEEK) is a material suitable for frameworks of fixed dental prostheses. The effect of different surface treatments on the bond strength of PEEK bonded to human dentin was evaluated. One hundred PEEK cylinders (3 mm×3 mm) were divided into five groups according to surface treatment: silica coating, sandblasting with 45 μm Al2O3 particles, etching with 98% sulfuric acid for 5, 30 and for 60 s. These cylinders were luted with resin cement onto 50 human molars. First, each tooth was embedded in epoxy resin and the buccal dentin surface was exposed. Then, two delimited dentin areas (Æ:3 mm) per tooth were etched with 35% phosphoric acid and bonded with a two-step self-priming adhesive system. After the luting procedure the specimens were stored in water (24 h/37 °C). Shear bond strength (SBS) was tested using a universal testing machine (crosshead speed 0.5 mm/min; load cell 50 kgf) and failure types were assessed. Stress data (MPa) were analyzed using the Kruskal-Wallis test. Comparison of the proportions of different failure types was performed using the Bonferroni method (p<0.05). Kruskal-Wallis demonstrated that differences among groups were not significant (p=0.187). Mean SBS were as follows: silica coating, 2.12±1.12 MPa; sandblasting, 2.37±0.86 MPa; sulfuric acid 5 s, 2.28±1.75 MPa; sulfuric acid 30 s, 1.80±0.85 MPa; sulfuric acid 60 s, 1.67±0.94 MPa. Adhesive and mixed failures were predominant in all groups. Both physical and chemical surface treatments produced adhesion between PEEK, resin cement and dentin.
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Affiliation(s)
- Regina Furbino Villefort Rocha
- Prosthodontics Unit, Institute of Science and Technology, UNESP - Universidade Estadual Paulista, São José dos Campos. SP, Brazil
| | - Lilian Costa Anami
- Prosthodontics Unit, Institute of Science and Technology, UNESP - Universidade Estadual Paulista, São José dos Campos. SP, Brazil
| | | | - Renata Marques de Melo
- Prosthodontics Unit, Institute of Science and Technology, UNESP - Universidade Estadual Paulista, São José dos Campos. SP, Brazil
| | | | - Marco Antonio Bottino
- Prosthodontics Unit, Institute of Science and Technology, UNESP - Universidade Estadual Paulista, São José dos Campos. SP, Brazil
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Bömicke W, Rues S, Hlavacek V, Rammelsberg P, Schmitter M. Fracture Behavior of Minimally Invasive, Posterior, and Fixed Dental Prostheses Manufactured from Monolithic Zirconia. J ESTHET RESTOR DENT 2016; 28:367-381. [DOI: 10.1111/jerd.12242] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wolfgang Bömicke
- Doctor of Medical Dentistry, Department of Prosthodontics; Heidelberg University Hospital, University of Heidelberg; Germany
| | - Stefan Rues
- Engineer Diploma, Department of Prosthodontics; Heidelberg University Hospital, University of Heidelberg; Germany
| | - Verena Hlavacek
- Doctor of Medical Dentistry, Department of Prosthodontics; Heidelberg University Hospital, University of Heidelberg; Germany
| | - Peter Rammelsberg
- Professor Doctor of Medical Dentistry, Department of Prosthodontics; Heidelberg University Hospital, University of Heidelberg; Germany
| | - Marc Schmitter
- Professor Doctor of Medical Dentistry, Department of Prosthodontics; Heidelberg University Hospital, University of Heidelberg; Germany
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The Retentive Strength of Cemented Zirconium Oxide Crowns after Dentin Pretreatment with Desensitizing Paste Containing 8% Arginine and Calcium Carbonate. Int J Mol Sci 2016; 17:426. [PMID: 27023532 PMCID: PMC4848888 DOI: 10.3390/ijms17040426] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 03/12/2016] [Accepted: 03/18/2016] [Indexed: 11/25/2022] Open
Abstract
The effect of dentin pretreatment with Desensitizing Paste containing 8% arginine and calcium carbonate on the retention of zirconium oxide (Y-TZP) crowns was tested. Forty molar teeth were mounted and prepared using a standardized protocol. Y-TZP crowns were produced using computer-aided design and computer-aided manufacturing (CAD-CAM) technology. The 40 prepared teeth were either pretreated with Desensitizing Paste or not pretreated. After two weeks, each group was subdivided into two groups, cemented with either Resin Modified Glass Ionomer Cement (RMGIC) or Self Adhesive Resin Cement (SARC)). Prior to cementation, the surface areas of the prepared teeth were measured. After aging, the cemented crown-tooth assemblies were tested for retentive strength using a universal testing machine. The debonded surfaces of the teeth and crowns were examined microscopically at 10× magnification. Pretreating the dentin surfaces with Desensitizing Paste prior to cementation did not affect the retention of the Y-TZP crowns. The retentive values for RMGIC (3.04 ± 0.77 MPa) were significantly higher than those for SARC (2.28 ± 0.58 MPa). The predominant failure modes for the RMGIC and SARC were adhesive cement-dentin and adhesive cement-crown, respectively. An 8.0% arginine and calcium carbonate in-office desensitizing paste can be safely used to reduce post-cementation sensitivity without reducing the retentive strength of Y-TZP crowns.
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