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Pilecco RO, Machry RV, Ribeiro VF, Dal Piva AMDO, Tribst JPM, Kleverlaan CJ, Moraes RR, Pereira GKR. Impact of try-in paste removal on the fatigue behavior of bonded lithium disilicate ceramics. J Mech Behav Biomed Mater 2024; 151:106394. [PMID: 38218045 DOI: 10.1016/j.jmbbm.2024.106394] [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: 12/11/2023] [Revised: 01/06/2024] [Accepted: 01/07/2024] [Indexed: 01/15/2024]
Abstract
This in vitro study assessed the effectiveness of three cleaning protocols (air-water spray, 37% phosphoric acid, or Ivoclean) on lithium disilicate restorations' fatigue behavior after try-in paste application, compared to a clean condition. Lithium disilicate discs (IPS e.max CAD, Ivoclar) with Ø-= 12 mm and 1 mm thickness were prepared from prefabricated CAD-CAM blocks, polished, subjected to CAD-CAM milling topography simulation and crystallization. After, etching with 5% hydrofluoric acid and the application of try-in paste (Variolink try-in paste shade white; load of 2.5 N for 5 min) was performed. Discs that received try-in paste were divided into three groups according to the removal protocol: SPRAY - air-water spray for 30 s; HPO - active application of 37% phosphoric acid for 60 s; IVOC - application of Ivoclean for 20 s. Control group (CTRL group) did not receive the try-in paste application. Half of the specimens (n= 15) were tested in the baseline condition (24 h up to 7 days), and the others underwent 25,000 thermal cycles (5 - 55 °C) + 210 days of distilled water storage (37 °C). Additional specimens (n= 3) underwent monotonic testing (1 mm/min). Fatigue testing involved a cyclic fatigue approach (20 Hz, initial load = 100 N - 5000 cycles, step size = 50 N - 10,000 cycles) until a visible crack appeared. Fractographic and topographic analyses were performed. Fatigue data were statistically analyzed with two-way ANOVA, Kaplan-Meier log-rank (Mantel-Cox), and independent t-test (α= 0.05). In the baseline condition, the IVOC group resulted in a superior fatigue behavior compared to the CTRL and SPRAY groups, but similar to the HPO group. The HPO and SPRAY presented a similar fatigue behavior to the CTRL group. It was noticed a decrease in fatigue behavior after aging, which resulted in all the cleaning protocols leading to similar fatigue behavior compared to the CTRL group. On the SPRAY group surface, try-in pastes remnants were noticed. In summary, despite a detrimental impact at baseline conditions, all tested cleaning protocols seem proper to remove the try-in paste from the ceramic's surface in the long-term evaluation.
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Affiliation(s)
- Rafaela Oliveira Pilecco
- Post-Graduate Program in Oral Sciences, Center for Development of Advanced Materials, Division of Prosthodontics-Biomaterials, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil.
| | - Renan Vaz Machry
- Post-Graduate Program in Oral Sciences, Center for Development of Advanced Materials, Division of Prosthodontics-Biomaterials, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil.
| | | | - Amanda Maria de Oliveira Dal Piva
- Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam en Vrije Universiteit, Amsterdam, the Netherlands.
| | - João Paulo Mendes Tribst
- Department of Reconstructive Oral Care, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam en Vrije Universiteit, Amsterdam, the Netherlands.
| | - Cornelis Johannes Kleverlaan
- Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam en Vrije Universiteit, Amsterdam, the Netherlands.
| | - Rafael R Moraes
- Graduate Program in Dentistry, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil.
| | - Gabriel Kalil Rocha Pereira
- Post-Graduate Program in Oral Sciences, Center for Development of Advanced Materials, Division of Prosthodontics-Biomaterials, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil.
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Liberato WF, Silikas N, Watts DC, Cavalcante LM, Schneider LFJ. Luting laminate veneers: Do resin-composites produce less polymerization stress than resin cements? Dent Mater 2023; 39:1190-1201. [PMID: 37858420 DOI: 10.1016/j.dental.2023.09.010] [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: 07/11/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/21/2023]
Abstract
OBJECTIVES Regular composites could produce less polymerization stress than resin cements when luting laminate veneers but there is no proper evidence to support this theory. The current study aimed to determine the degree of conversion, volumetric shrinkage, polymerization stress and the resultant elastic moduli of materials currently used for adhesive cementation and to determine possible correlations. METHODS The study considered (i) regular resin composites (Admira Fusion, Gradia, Grandioso, Palfique, Sirius Z, Viscalor and Z100) at room and pre-warmed (PW) at 69ºC, (ii) flowable composites (Sigma Flow and Grandioso Flow); (iii) solely light-activated cements (AllCem Veneer, Variolink Esthetic and RelyX Veneer); and (iv) one dual-activated resin cement (SpeedCEM). Degree of conversion (DC, n = 3) was accessed with FTIR 1 h after irradiation. Bonded-disk and Bioman II instruments were used to access polymerization shrinkage strain and shrinkage stress, respectively, for 60 min at 23 ± 1◦C (n = 3). The elastic modulus was determined by 3-point bending flexural test (n = 6). The results were submitted to analyse s of variance, Tukey's, and correlation tests. RESULTS For regular composites, the pre-warming did not affect DC, shrinkage and modulus but significantly increased the stress magnitude. Correlation tests indicated a significant relationship only between stress and polymerization shrinkage (r = 0.811343). SIGNIFICANCE Regular composites can produce less polymerization stress than resin cements when luting laminate veneers. Polymerization stress was dependent on the shrinkage magnitude, but not on the degree of conversion nor the elastic modulus.
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Affiliation(s)
- Walleska Feijó Liberato
- School of Dentistry, Federal Fluminense University, Niteroi, Rio de Janeiro, Brazil; Biomaterials Research Group, School of Medical Sciences, Division of Dentistry, The University of Manchester, Manchester, United Kingdom; Nucleus for Dental Biomaterials Research, Veiga de Almeida University, Rio de Janeiro, Brazil
| | - Nikolaos Silikas
- Biomaterials Research Group, School of Medical Sciences, Division of Dentistry, The University of Manchester, Manchester, United Kingdom
| | - David C Watts
- Biomaterials Research Group, School of Medical Sciences, Division of Dentistry, The University of Manchester, Manchester, United Kingdom
| | | | - Luis Felipe J Schneider
- School of Dentistry, Federal Fluminense University, Niteroi, Rio de Janeiro, Brazil; Nucleus for Dental Biomaterials Research, Veiga de Almeida University, Rio de Janeiro, Brazil.
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Rk R, Hegde D, Mc J, Ummer H, Nazer N, Mk J. A Study to Evaluate the Effect of Cleaning Solutions on Shear Bond Strength of Resin Cement to Saliva-Contaminated Lithium Disilicate (LDS) Ceramic. Cureus 2023; 15:e44389. [PMID: 37779739 PMCID: PMC10541234 DOI: 10.7759/cureus.44389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023] Open
Abstract
BACKGROUND One of the greatest benefits of contemporary restorative dentistry is the creation of fixed partial dentures. The retention and durability of the fixed partial dentures may be improved by using a variety of tooth preparation methods, surface treatments, and luting resins. AIM To measure the shear binding strength of resin cement to saliva-contaminated lithium disilicate (LDS) ceramic after being exposed to various cleaning treatments. METHODOLOGY Over 30 LDS samples were examined. In Group 1, a cleansing solution comprising 15% zirconium oxide (Ivoclean) was employed for a duration of 20 s. This was succeeded by a rinsing phase lasting 15 s utilizing deionized water, followed by a 15-s period for drying. Subsequently, a final stage of air drying was conducted over a span of 15 s. In contrast, Group 2 underwent a washing procedure of 20 s involving a cleansing solution containing 30% sodium silicate. This was then ensued by a rinsing interval of 15 s with deionized water, succeeded by an air-drying process spanning 15 s. After applying cleaning solutions to the surface and adhering the specimens to the composite blocks using resin cement Multilink Automix (Ivoclar Vivadent, Schaan, Liechtenstein), the shear bond strength was assessed. RESULTS Using a 30% sodium silicate solution (Group 2), we were able to get the highest mean shear bond strength value after saliva-contaminated LDS. Group 1, 15% zirconium oxide (Ivoclean) had the weakest decontamination agents as measured by mean shear bond strengths. The shear bond strength values of the two groups were found to vary significantly between individuals using the independent sample t-test. LDs ceramic cleaned with a 30% sodium silicate solution had a higher shear bond strength than ceramic cleaned with Ivoclean (p<0.05). CONCLUSION The application of a 30% sodium silicate solution rendered the highest shear bond strength for saliva-contaminated LDS ceramic. In comparison, ceramic cleaned with Ivoclean exhibited notably lower shear bond strength values. The outcome of this investigation highlights the potential of diverse cleaning agents in influencing the adhesive qualities of resin cement, thereby contributing to the enhancement of fixed partial denture durability and efficacy.
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Affiliation(s)
- Radhi Rk
- Prosthodontics, MES Dental College, Perinthalmanna, IND
| | - Divya Hegde
- Prosthodontics, Bangalore Institute of Dental Sciences, Bangalore, IND
| | - Juraise Mc
- Prosthodontics, MES Dental College, Perinthalmanna, IND
| | - Haseena Ummer
- Prosthodontics, MES Dental College, Perinthalmanna, IND
| | - Nadeem Nazer
- Prosthodontics, Kannur Dental College, Anjarakandy, IND
| | - Jyothsna Mk
- Prosthodontics, Educare Institute of Dental Sciences, Malappuram, IND
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Pilecco RO, Machry RV, Ribeiro VF, Moraes RR, Pereira GKR. Evaluation paste removal method and bond strength between resin cement and lithium disilicate ceramic: An in vitro study. J Prosthet Dent 2023:S0022-3913(23)00346-3. [PMID: 37357087 DOI: 10.1016/j.prosdent.2023.05.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 06/27/2023]
Abstract
STATEMENT OF PROBLEM After the use of evaluation paste, residue can remain on the bonding surface. However, how adhesion to lithium disilicate ceramic is affected is unclear. PURPOSE The purpose of this in vitro study was to determine the effectiveness of lithium disilicate cleaning after contamination with an evaluation paste and before the application of a resin cement. MATERIAL AND METHODS Rectangular lithium disilicate (IPS e.max CAD) specimens were obtained with a simulated milled surface, crystallized, etched with 5% hydrofluoric (HF) acid, and contaminated with an evaluation paste. The cleaning methods tested were air-water spray (SPRAY), 37% phosphoric acid (HPO), ultrasonic bath (ULT), cleaning paste (IVOC), and a conventional surface treatment (HF + silane-HF+SIL). The control (CTRL) group was not contaminated. After silane had been applied, resin cement cylinders were fabricated and light polymerized. Half of the cylinders (n=56) were tested for microshear bond strength at baseline (24 hours), and the other half after 210 days of water storage and 25 000 thermal cycles. Surface roughness, failure analysis, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) were performed. Statistical analysis was performed with the Kruskal-Wallis and Mann-Whitney tests for surface roughness and the 2-way ANOVA and Bonferroni post hoc tests for bond strength (α=.05). RESULTS At baseline, only SPRAY did not restore the bond strength compared with CTRL. After aging, the bond strengths of SPRAY and IVOC were lower than of CTRL (P<.05); no significant difference was found between CTRL, HPO, ULT, and HF+SIL (P>.05). EDS demonstrated the presence of carbon in the SPRAY and ULT groups, probably remnants of the evaluation paste. SEM analysis identified such remnants in the SPRAY group only. CONCLUSIONS For optimal bond strength between lithium disilicate and resin cement after evaluation paste use, cleaning the ceramic surface with 37% phosphoric acid, ultrasonic bath, or with hydrofluoric acid worked best.
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Affiliation(s)
- Rafaela Oliveira Pilecco
- Postgraduate student, Post-Graduate Program in Oral Sciences (Prosthodontics Units), Faculty of Dentistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Renan Vaz Machry
- Postdoctoral student, Faculty of Dentistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Vinícius Fogliato Ribeiro
- Graduate student, Faculty of Dentistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Rafael R Moraes
- Associate Professor, Faculty of Dentistry, Universidade Federal de Pelotas (UFPel), Pelotas, Rio Grande do Sul, Brazil
| | - Gabriel Kalil Rocha Pereira
- Adjunct Professor, Post-Graduate Program in Oral Sciences (Prosthodontics Unit), Faculty of Dentistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil.
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Predictable bonding of adhesive indirect restorations: factors for success. Br Dent J 2021; 231:287-293. [PMID: 34508198 PMCID: PMC8433051 DOI: 10.1038/s41415-021-3336-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 01/26/2021] [Indexed: 11/09/2022]
Abstract
Adhesive indirect restorations are a popular restorative treatment option. This article discusses the many factors that contribute to their successful adhesive cementation, including a review of how to surface treat and manage contaminants across the wide range of indirect materials available. Critiques the current various adhesive strategies used by resin cements at the tooth tissue interface. Describes how to prepare the fitting surface of a wide range of restorative materials for adhesive cementation. Discusses how to mitigate against contaminants during the adhesive cementation process.
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Paken G, Yıldırım B, Ünal M, Tekeli A, Kırarslan Ö. Colour agreement between try-in paste and resin cement: effect of background on zirconia-reinforced lithium silicate. Aust Dent J 2021; 66:406-412. [PMID: 34212396 DOI: 10.1111/adj.12866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE To investigate colour agreement between different shades of Panavia V5 resin cement and their try-in pastes under zirconia-reinforced lithium silicate ceramics. METHODS Forty-four zirconia-reinforced lithium silicate ceramic specimens were prepared at 0.8 ± 0.01 mm thickness. Composite resin tooth-shaded background specimens were obtained in two shades. Resin cement specimens were fabricated at 0.1-mm thickness. Colour difference values (ΔE) between Aquagel and both the try-in paste and resin cement were calculated using the CIE-Lab system. The CIEDE2000 (ΔE00) colour formula was used to determine colour differences. The three-way ANOVA test and a multiple comparisons test were used for statistical analysis (α = 0.05). RESULTS A statistically significant difference was found between the ΔE00 values obtained from the cement shade colour measurements for all specimens (P < 0.05). According to the three-way ANOVA test, lower ΔE00 values were observed in the try-in paste group compared to the resin cement group. The ΔE00 values were significantly affected by the cement shade and tooth-shaded background (P < 0.05). CONCLUSIONS The colour agreement between the try-in pastes and the corresponding resin cement differed, and the try-in pastes could not mask the dark dental background as much as the corresponding resin cement.
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Affiliation(s)
- G Paken
- School of Dentistry, Department of Prosthodontics, Usak University, Usak, Turkey
| | - B Yıldırım
- School of Dentistry, Department of Prosthodontics, Usak University, Usak, Turkey
| | - M Ünal
- School of Dentistry, Department of Prosthodontics, Usak University, Usak, Turkey
| | - A Tekeli
- School of Dentistry, Department of Prosthodontics, Usak University, Usak, Turkey
| | - Ö Kırarslan
- School of Dentistry, Department of Prosthodontics, Usak University, Usak, Turkey
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Alteration of the intaglio surface of lithium disilicate glass-ceramic. J Prosthet Dent 2019; 122:411.e1-411.e10. [DOI: 10.1016/j.prosdent.2019.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 06/12/2019] [Accepted: 06/12/2019] [Indexed: 11/19/2022]
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Lapinska B, Rogowski J, Nowak J, Nissan J, Sokolowski J, Lukomska-Szymanska M. Effect of Surface Cleaning Regimen on Glass Ceramic Bond Strength. Molecules 2019; 24:molecules24030389. [PMID: 30678247 PMCID: PMC6385042 DOI: 10.3390/molecules24030389] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/17/2019] [Accepted: 01/20/2019] [Indexed: 01/30/2023] Open
Abstract
This study investigated the effect of saliva contamination on chemical changes of ceramic surface as well as the influence of saliva cleaning methods on ceramic-resin bond strength. Saliva was used to contaminate leucite (LGC) and lithium disilicate (LDGC) glass ceramic surfaces. The following cleaning methods were tested: water spray, cleaning with orthophosphoric acid, universal cleaning paste, ultrasonic cleaning with water, re-etching with hydrofluoric acid. Non-contaminated ceramic sample served as control. Chemical analysis of ceramic surfaces was performed using time-of-flight secondary ion mass spectrometry (TOF-SIMS). Shear bond strength (SBS) of ceramics to resin material was tested after 24-hour water storage and after thermocycling. The most effective cleaning method of saliva-contaminated ceramic surface was cleaning LGC surface with orthophosphoric acid or re-etching the LDGC surface with hydrofluoric acid. The application of the following methods resulted in obtaining reliable bond strength.
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Affiliation(s)
- Barbara Lapinska
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska St., 92-213 Lodz, Poland.
| | - Jacek Rogowski
- Institute of General and Ecological Chemistry, Lodz University of Technology, 116 Zeromskiego St., 90-924 Lodz, Poland.
| | - Joanna Nowak
- University Laboratory of Materials Research, Medical University of Lodz, 251 Pomorska St., 92-213 Lodz, Poland.
| | - Joseph Nissan
- Department of Oral Rehabilitation, School of Dental Medicine, Tel Aviv University, 6997801 Tel Aviv, Israel.
| | - Jerzy Sokolowski
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska St., 92-213 Lodz, Poland.
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Koodaryan R, Hafezeqoran A, Khakpour Maleki A. The effect of resin cement type and cleaning method on the shear bond strength of resin cements for recementing restorations. J Adv Prosthodont 2017; 9:110-117. [PMID: 28435620 PMCID: PMC5397587 DOI: 10.4047/jap.2017.9.2.110] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 12/05/2016] [Accepted: 01/10/2017] [Indexed: 11/08/2022] Open
Abstract
PURPOSE This laboratory study assessed the effect of different dentin cleaning procedures on shear bond strength of resin cements for recementing prosthesis. MATERIALS AND METHODS 4 × 4 flat surface was prepared on the labial surface of 52 maxillary central incisors. Metal frames (4 × 4 × 1.5 mm) were cast with nickel-chromium alloy. All specimens were randomly divided into 2 groups to be cemented with either Panavia F2.0 (P) or RelyX Ultimate (U) cement. The initial shear bond strength was recorded by Universal Testing Machine at a crosshead speed of 0.5 mm/min. Debonded specimens were randomly allocated into 2 subgroups (n = 13) according to the dentin cleaning procedures for recementation. The residual cement on bonded dentin surfaces was eliminated with either pumice slurry (p) or tungsten carbide bur (c). The restorations were rebonded with the same cement and were subjected to shear test. Data failed the normality test (P < .05), thus were analyzed with Mann Whitney U-test, Wilcoxon signed rank test, and two-way ANOVA after logarithmic transformation (α = .05). RESULTS The initial shear bond strength of group P was significantly higher than group U (P = .001). Pc and Uc groups presented higher bond strength after recementation compared to the initial bond strength. However, it was significant only in Pc group (P = .034). CONCLUSION The specimens recemented with Panavia F2.0 provided higher bond strength than RelyX Ultimate cement. Moreover, a tungsten carbide bur was a more efficient method in removing the residual resin cement and increased the bond strength of Panavia F2.0 cement after recementation.
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Affiliation(s)
- Roodabeh Koodaryan
- Department of Prosthodontics, Faculty of Dentistry, University of Medical Sciences, Tabriz, Iran
| | - Ali Hafezeqoran
- Department of Prosthodontics, Faculty of Dentistry, University of Medical Sciences, Tabriz, Iran
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Taşar S, Ulusoy MM, Merıç G. Microshear bond strength according to dentin cleansing methods before recementation. J Adv Prosthodont 2014; 6:79-87. [PMID: 24843391 PMCID: PMC4024563 DOI: 10.4047/jap.2014.6.2.79] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 02/25/2014] [Accepted: 03/18/2014] [Indexed: 11/29/2022] Open
Abstract
PURPOSE The aim of this study was to determine the efficiency of Erbium, Chromium: Yttrium-Scandium-Gallium-Garnet laser in different output powers for removing permanent resin cement residues and therefore its influence on microshear bond strength compared to other cleaning methods. MATERIALS AND METHODS 90 extracted human molars were sectioned in 1 mm thickness. Resin cement was applied to surface of sliced teeth. After the removal of initial cement, 6 test groups were prepared by various dentin surface treatment methods as follows: no treatment (Group 1), ethylene diamine tetra acetic acid application (Group 2), Endosolv R application (Group 3), 1.25 W Erbium, Chromium:Yttrium-Scandium-Gallium-Garnet laser irradiation (Group 4), 2 W Erbium, Chromium:Yttrium-Scandium-Gallium-Garnet laser irradiation (Group 5) and 3.5 W Erbium, Chromium:Yttrium-Scandium-Gallium-Garnet laser irradiation (Group 6). The topography and morphology of the treated dentin surfaces were investigated by scanning electron microscopy (n=2 for each group). Following the repetitive cementation, microshear bond strength between dentin and cement (n=26 in per group) were measured with universal testing machine and the data were analyzed by Kruskal Wallis H Test with Bonferroni correction (P<.05). Fracture patterns were investigated by light microscope. RESULTS Mean microshear bond strength ± SD (MPa) for each group was 34.9 ± 17.7, 32.1 ± 15.8, 37.8 ± 19.3, 31.3 ± 12.7, 44.4 ± 13.6, 40.2 ± 13.2 respectively. Group 5 showed significantly difference from Group 1, Group 2 and Group 4. Also, Group 6 was found statistically different from Group 4. CONCLUSION 2 W and 3.5 W Erbium, Chromium: Yttrium-Scandium-Gallium-Garnet laser application were found efficient in removing resin residues.
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Affiliation(s)
- Simge Taşar
- Department of Prosthodontics, Faculty of Dentistry, Near East University, Nicosia, Mersin, Turkey
| | - Mutahhar Muhammed Ulusoy
- Department of Prosthodontics, Faculty of Dentistry, Near East University, Nicosia, Mersin, Turkey
| | - Gökçe Merıç
- Department of Prosthodontics, Faculty of Dentistry, Near East University, Nicosia, Mersin, Turkey
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Rigoni P, Amaral FLBD, França FMG, Basting RT. Color agreement between nanofluorapatite ceramic discs associated with try-in pastes and with resin cements. Braz Oral Res 2012. [DOI: 10.1590/s1806-83242012000600006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Paulo Rigoni
- São Leopoldo Mandic Dental Research Institut, Brazil
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Tak O, Usumez A. Diffusion of HEMA through Human Carious and Non-Carious Dentin In Vitro. J Prosthodont 2012; 22:184-9. [DOI: 10.1111/j.1532-849x.2012.00935.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Taira Y, Sakai M, Sawase T. Effects of primer containing silane and thiophosphate monomers on bonding resin to a leucite-reinforced ceramic. J Dent 2012; 40:353-8. [DOI: 10.1016/j.jdent.2011.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2011] [Revised: 11/30/2011] [Accepted: 12/01/2011] [Indexed: 11/29/2022] Open
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Hooshmand T, Rostami G, Behroozibakhsh M, Fatemi M, Keshvad A, van Noort R. Interfacial fracture toughness of different resin cements bonded to a lithium disilicate glass ceramic. J Dent 2012; 40:139-45. [DOI: 10.1016/j.jdent.2011.12.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 12/03/2011] [Accepted: 12/05/2011] [Indexed: 11/29/2022] Open
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