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Bourgi R, Kharouf N, Cuevas-Suárez CE, Lukomska-Szymanska M, Kharma K, Moussa FH, Metlej M, Haikel Y, Hardan L. Warm Air Delivery in Adhesive Application: Effect on Bonding Performance and Morphological Outcomes. Biomimetics (Basel) 2024; 9:194. [PMID: 38667205 PMCID: PMC11048613 DOI: 10.3390/biomimetics9040194] [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: 02/22/2024] [Revised: 03/14/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
Solvent evaporation within an adhesive layer is a crucial step during a bonding process. The aim of this current research was to test whether the use of different air temperatures (20 °C, 40 °C, and 60 °C) for solvent evaporation improves the performance of four adhesive systems to dentin. Sixty non-carious human molar teeth were randomly prepared for micro-tensile bond strength (μTBS) tests. Four different adhesive systems, Prime&Bond Universal (PBU), OptiBond Universal (OBU), OptiBond FL (OBFL), and Clearfil SE (CSE), were applied following the manufacturer's instructions. Three groups based on the air-drying temperature were used: solvent evaporation was performed with either of warm (40 °C), (60 °C), and cold air as control group (20 °C) for 10 s at a distance of 5 cm. In all bonded surfaces, three resin composite (Reflectys, Itena Clinical, Paris, France) layers of 2 mm thickness were built up. The resin-dentin samples were kept in distilled water at 37 °C for 24 h and 6 months, respectively, before μTBS testing. Failure analysis, scanning electron microscopy of resin-dentin bonded interface, and solvent evaporation rate were tested as secondary variables. All analyses were conducted using a significance level of α = 0.05. Bond strength (BS) values were similar among all the adhesive systems used (p > 0.05). Also, the aging factor did not affect the BS (p > 0.05). Only the factor of temperature used for solvent evaporation resulted in a statistically significant effect (p < 0.05), with the temperature of 60 °C being the highest value (p < 0.05). A failure mode evaluation revealed mostly adhesive or mixed modes of failures in all the different temperatures of air used for the solvent evaporation of each adhesive system. The thickness of the adhesive layer and the creation of resin tags varied amongst the temperatures evaluated. For all adhesive systems tested, the use of 40 °C or 60 °C air for solvent evaporation led to an increased mass loss. Warmer temperatures for solvent evaporation contributed positively to bonding performance, enhancing both the quality of the adhesive layer and its interaction with the dentin tissue. Optimizing solvent evaporation with warmer air temperatures (40 °C and 60 °C) significantly improved µTBS, offering a practical means to enhance the quality and longevity of adhesive restorations in esthetic dentistry.
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Affiliation(s)
- Rim Bourgi
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (R.B.); (K.K.)
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France; (N.K.); (Y.H.)
| | - Naji Kharouf
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France; (N.K.); (Y.H.)
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000 Strasbourg, France
| | - Carlos Enrique Cuevas-Suárez
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, San Agustín Tlaxiaca 42160, Mexico
| | | | - Khalil Kharma
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (R.B.); (K.K.)
| | - Fabienne Hajj Moussa
- Laboratoire de Pharmacologie, Pharmacie Clinique et Contrôle de Qualité des Médicaments, Faculty of Pharmacy, Saint-Joseph University, Beirut 1107 2180, Lebanon;
| | - Manar Metlej
- Department of Prosthetic Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon;
| | - Youssef Haikel
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France; (N.K.); (Y.H.)
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
| | - Louis Hardan
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (R.B.); (K.K.)
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Bourgi R, Hardan L, Cuevas-Suárez CE, Devoto W, Kassis C, Kharma K, Harouny R, Ashi T, Mancino D, Kharouf N, Haikel Y. Effectiveness of Different Application Modalities on the Bond Performance of Four Polymeric Adhesive Systems to Dentin. Polymers (Basel) 2023; 15:3924. [PMID: 37835974 PMCID: PMC10574991 DOI: 10.3390/polym15193924] [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: 09/07/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
One of the major goals of adhesive dentistry is to improve the interaction of the already-existing adhesives with different substrates by using different application techniques. Thus, the objective of the present in vitro study was to assess the bond performance of four adhesive systems, Prime&Bond Universal (PBU), Clearfil SE Bond (CSE), OptiBond Universal (OBU), and OptiBond FL (OBFL), to dentin using various application modes: passive application (PA), active application (AA), Compo-Vibes modified application (CVM), and Compo-Vibes application (CV). Eighty extracted human molars were allocated into four groups based on the application modalities tested. The micro-tensile bond strength as well as fracture mode were tested in accordance with ISO/TS 11.405 after 24 h and 6 months of aging. Adhesive contact angle (CA) and scanning electron microscope analysis were also performed (n = 3). Statistical tests were performed with α = 0.05. After 24 h, a significant difference with a higher bond strength value was found for PBU in the AA modality and for CSE in the CVM modality (p < 0.05). However, no significant difference was shown between the techniques used among the other adhesives (OBFL and OBU). Moreover, at 24 h, only the PA demonstrated significant differences between the tested materials (p < 0.05). After 6 months, CSE, PBU, and OBU demonstrated significant differences between the techniques (p < 0.05), with a higher bond strength for CSE in AA and CVM modalities, for PBU in AA modality, and for OBU in AA and PA modalities. No significant differences were found between the techniques used among the OBFL (p > 0.05). In addition, only the CVM technique demonstrated significant differences between the tested materials after 6 months. CV and CVM showed a decreased value after aging for CSE and PBU, respectively. However, all the modalities decreased for OBU and OBFL after aging. All the adhesives showed marked resin infiltration into dentinal tubules in AA among all the modalities tested. Both universal adhesive systems (OBU and PBU) demonstrated statistically lower CA when compared to the other systems (CSE and OBFL) (p < 0.05) when applied in the PA mode. Concerning the AA mode, only CSE and OBFL were tested. The AA demonstrated lower CA values compared to the same adhesives in PA (p < 0.05). It could be concluded that the bond strength could be influenced by both materials and application techniques. It seems that the AA technique could be recommended as a gold standard for the application of an adhesive system to dentin. Plus, the CV and CVM modalities after 6 months of aging were considered stable for PBU and CSE, respectively. Consequently, the performance of these adhesive systems might vary when applied to other modalities. Future studies are needed to test this hypothesis.
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Affiliation(s)
- Rim Bourgi
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (R.B.); (L.H.); (C.K.); (K.K.); (R.H.)
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France; (T.A.); (D.M.); (Y.H.)
| | - Louis Hardan
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (R.B.); (L.H.); (C.K.); (K.K.); (R.H.)
| | - Carlos Enrique Cuevas-Suárez
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, San Agustín Tlaxiaca 42160, Mexico;
| | - Walter Devoto
- Independent Researcher, 16030 Sestri Levante, Italy;
| | - Cynthia Kassis
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (R.B.); (L.H.); (C.K.); (K.K.); (R.H.)
| | - Khalil Kharma
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (R.B.); (L.H.); (C.K.); (K.K.); (R.H.)
| | - Ryan Harouny
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon; (R.B.); (L.H.); (C.K.); (K.K.); (R.H.)
- Craniofacial Research Laboratory, Division of Biomaterials, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon
| | - Tarek Ashi
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France; (T.A.); (D.M.); (Y.H.)
| | - Davide Mancino
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France; (T.A.); (D.M.); (Y.H.)
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
| | - Naji Kharouf
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France; (T.A.); (D.M.); (Y.H.)
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000 Strasbourg, France
| | - Youssef Haikel
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France; (T.A.); (D.M.); (Y.H.)
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
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Arandi NZ. The Classification and Selection of Adhesive Agents; an Overview for the General Dentist. Clin Cosmet Investig Dent 2023; 15:165-180. [PMID: 37692095 PMCID: PMC10488680 DOI: 10.2147/ccide.s425024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/23/2023] [Indexed: 09/12/2023] Open
Abstract
Adhesive agents are essential to most restorative procedures used in everyday practice. Depending on the clinical situation, the dentist will choose among a rapidly evolving variety of adhesive agents (bonding agents). Due to the availability of many adhesive agents, appropriate selection can take time and effort. Typically, a practitioner relies more on marketing and experience than in-depth material knowledge. The classification of adhesive agents may need to be clarified and easier to remember due to its lack of relevance to clinical procedures. This paper reviews the published literature retrieved from PubMed, Google Scholar, and Scopus by using specific keywords "adhesive agents", "classification", "dentin", "enamel", "universal", "self-etch", "etch-and-rinse", and "bonding". The titles and abstracts were screened, and the relevant literature was retrieved. The list of references from each identified article was examined to find other potentially relevant articles. Adhesive agents can be classified as etch-and-rinse, self-etch, or "multi-mode" according to their approach to interacting with the smear layer, and each approach can be further classified according to the number of clinical steps required during application. This article reviews the classification of current adhesive agents and discusses the properties that make a specific adhesive agent the optimal choice for a particular clinical indication. The review will assist the general dentist in understanding the various types of available adhesive agents and how they function. Overall, the review will facilitate decision-making and allow the selection of appropriate materials.
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Affiliation(s)
- Naji Ziad Arandi
- Department of Conservative Dentistry, Faculty of Dentistry, Arab American University, Jenin, Palestine
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Attia AM, Abo-Elezz AF, Safy RK. Effect of phytic acid on bond strength and interfacial integrity of universal adhesive to deep dentin. Braz Dent J 2022; 33:116-125. [DOI: 10.1590/0103-6440202204810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 07/13/2022] [Indexed: 11/07/2022] Open
Abstract
Abstract This study investigated the effect of phytic acid (IP6) in different concentrations and application times on microtensile bond strength (µTBS) and interfacial integrity of universal adhesive to deep dentin. Flat deep dentin surfaces of 48 human molars were either etched with 37% phosphoric acid (PA) for 15 sec (control); or received no acid treatment and universal adhesive was applied directly in a self-etch mode (SE); or divided according to IP6 concentration (C) into two main groups: C1, 0.5%, and C2, 1%. Specimens of IP6 groups were further subdivided into three subgroups according to application time of IP6 (T) where; T1, 15 sec; T2, 30 sec and T3, 60 sec. Single Bond Universal Adhesive was then applied and resin composite blocks were built-up. Forty Specimens were then sectioned to produce resin/dentin beams that were used for µTBS testing using a universal testing machine. The remaining eight specimens were sectioned into slabs that were immersed into ammonical silver nitrate solution and nanoleakage was observed using a field emission scanning electron microscope (FE-SEM). The results showed that the application of IP6 in 0.5% and 1% produced significantly higher µTBS and less nanoleakage compared to PA and SE groups. Also, the application of IP6 for 60 sec recorded the highest µTBS and the lowest nanoleakage followed by 30 sec, and 15 sec respectively. Therefore, conditioning of deep dentin with IP6 enhances µTBS and interfacial integrity of universal adhesive to deep dentin in comparison to PA etching or using the universal adhesive in SE mode.
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He X, Yu S, Wang H, Tian Z, Zhang J, Zhao Y, Gong H, Shi Z, Cui Z, Zhu S. A novel resin cement to improve bonding interface durability. RSC Adv 2022; 12:24288-24300. [PMID: 36128534 PMCID: PMC9415027 DOI: 10.1039/d2ra04446c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/18/2022] [Indexed: 11/30/2022] Open
Abstract
Bonding failure is one of the main causes of failure of dental restorations. The bonding strength, aging resistance, and polymerization shrinkage of cement can affect the stability of the bonding interface and lead to marginal microleakage. To reduce the bonding failure rate of restorations, a novel polyurethane (PU) cement was designed to improve the mechanical properties, hydrophobicity, degree of conversion (DC), polymerization shrinkage, bond strength and aging resistance of cement by introducing isophorone diisocyanate (IPDI) and hydroxyethyl methacrylate (HEMA) and adjusting the polyester : polyether ratio to increase the degree of cross-linking. Experimental results verified that the novel PU could increase the mechanical properties and thermal stability of the cement, reduce polymerization shrinkage during the curing reaction, improve the bonding performance and DC, endow the cement with hydrophobic properties, and improve its ability to resist aging in the salivary environment to maintain the long-term stability of interfacial bonding under the influence of comprehensive factors. The results of this study provide a new direction and insights to reduce microleakage and improve the success rate of restorations. Bonding failure is one of the main causes of failure of dental restorations.![]()
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Affiliation(s)
- Xi He
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Shiyang Yu
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Huimin Wang
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Zilu Tian
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Jiahui Zhang
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Ying Zhao
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Haihuan Gong
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Zuosen Shi
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, JilinUniversity, Changchun 130021, P. R. China
| | - Zhanchen Cui
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, JilinUniversity, Changchun 130021, P. R. China
| | - Song Zhu
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
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Dreweck F, Burey A, de Oliveira Dreweck M, Fernandez E, Loguercio AD, Reis A. Challenging the Concept that OptiBond FL and Clearfil SE Bond in NCCLs Are Gold Standard Adhesives: A Systematic Review and Meta-analysis. Oper Dent 2021; 46:E276-E295. [PMID: 34919728 DOI: 10.2341/20-059-lit] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2021] [Indexed: 11/23/2022]
Abstract
PURPOSE The following PICO (Patient/Population, Intervention, Comparison, and Outcomes) question was proposed: "Are retention rates of composite resin restorations in noncarious cervical lesions (NCCLs) when using adhesives considered "gold standard" (OptiBond FL and Clearfil SE Bond) higher than those obtained with other adhesives brands"? METHODS A search was performed in February 2019 (updated in November 2019) in the PubMed/MEDLINE, EMBASE, LILACS, BBO, Web of Science, Cochrane Library, Grey Literature, and IADR abstracts (1990-2018); unpublished and ongoing trial registries, dissertations, and theses were also searched. Only randomized clinical trials (RCTs) conducted in NCCLs that compared either OptiBond FL or Clearfil SE Bond adhesive with other commercially available adhesives were included. The risk of bias (RoB) was applied by using the Cochrane Collaboration tool. A meta-analysis was performed for retention rates at different follow-up times using a random effects model for both the adhesives. Heterogeneity was assessed with the Cochran Q test and I2 statistics. Grading of Recommendations: Assessment, Development and Evaluation (GRADE) assessed the quality of evidence. RESULTS After removal of duplicates and noneligible articles, 25 studies remained for qualitative synthesis, as one study was common to the two adhesives, of which 9 studies were used for the OptiBond FL meta-analysis and 14 for the Clearfil SE Bond meta-analysis. No significant differences were observed for retention rates in follow-up periods of 12-24 months (p=0.97), 36-48 months (p=0.72), or 108-156 months (p=0.73) for OptiBond FL; and for 12-24 months (p=0.10) and 36-48 months (p=0.17) for Clearfil SE Bond. A significant difference was only found for OptiBond FL at 60-96 months (p=0.02), but only three studies were included in this meta-analysis. CONCLUSIONS The evidence from available RCTs conducted in NCCLs that compared OptiBond FL or Clearfil SE Bond does not support the widespread concept that these adhesives are better than any other competitive brands available in the dental market.
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Affiliation(s)
- Fds Dreweck
- Fabiana Dias Simas Dreweck, DDS, MS, PhD student, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Uvaranas, PR, Brazil. Adjunctive professor, Campos Gerais Higher Education Center- CESCAGE, Ponta Grossa, PR, Brazil
| | - A Burey
- Adrieli Burey, DDS, MS, PhD student, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Uvaranas, PR, Brazil
| | - M de Oliveira Dreweck
- Marcelo de Oliveira Dreweck, MS, assistant professor, Medicine Department, State University of Ponta Grossa, Uvaranas, PR, Brazil
| | - E Fernandez
- Eduardo Fernandez, DDS, MS, PhD, professor, Restorative Dentistry Department, Faculty of Dentistry, University of Chile, Santiago, Chile; Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Providencia, Chile
| | - A D Loguercio
- Alessandro D. Loguercio, DDS, MS, PhD, professor, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Uvaranas, PR, Brazil
| | - A Reis
- *Alessandra Reis, DDS, PhD, professor, Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Uvaranas, PR, Brazil
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The "Pre-Finishing" Approach in Direct Anterior Restorations. A Case Series. Dent J (Basel) 2021; 9:dj9070079. [PMID: 34356195 PMCID: PMC8307093 DOI: 10.3390/dj9070079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/01/2021] [Accepted: 07/05/2021] [Indexed: 11/19/2022] Open
Abstract
In esthetic restorations of anterior teeth the clinician has to manage several aspects in order to have a predictable outcome. A deep knowledge of the anatomy as well as the adhesive procedures and the optical properties of resin-based composites are mandatory to achieve esthetic results. Contemporary restorative materials present either several shades and different translucency properties and therefore they are able to mimic teeth’s optical behavior thus providing a natural aspect to anterior restorations. The wrong thickness of different composite layers may provide unpleasant results such as low value (grayish) restorations that often requires reintervention. A precise step-by-step procedure is therefore mandatory to provide the proper shade at the correct place. There is therefore the need of some corrections and adjustments during the layer procedure in order to avoid errors in shade positioning that could affect final result. The authors present a case series (six clinical cases) treated with the proposed technique with up to five years follow-up.
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8
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Burrer P, Dang H, Par M, Attin T, Tauböck TT. Effect of Over-Etching and Prolonged Application Time of a Universal Adhesive on Dentin Bond Strength. Polymers (Basel) 2020; 12:E2902. [PMID: 33287394 PMCID: PMC7761786 DOI: 10.3390/polym12122902] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 11/28/2022] Open
Abstract
This study investigated the effect of over-etching and prolonged application time of a universal adhesive on dentin bond strength. Ninety extracted human molars were ground to dentin and randomly allocated into nine groups (G1-9; n = 10 per group), according to the following acid etching and adhesive application times. In the control group (G1), phosphoric acid etching was performed for 15 s followed by application of the universal adhesive Scotchbond Universal (3M) for 20 s, as per manufacturer's instructions. In groups G2-5, both the etching and adhesive application times were either halved, doubled, quadrupled, or increased eightfold. In groups G6-9, etching times remained the same as in G2-5 (7.5 s, 30 s, 60 s, and 120 s, respectively), but the adhesive application time was set at 20 s as in the control group (G1). Specimens were then restored with a nanofilled composite material and subjected to microtensile bond strength testing. Bond strength data were statistically analyzed by ANOVA and Tukey's post-hoc tests (α = 0.05). The relationship of bond strength with etching and adhesive application time was examined using linear regression analysis. Treatment of dentin with halved phosphoric acid etching and adhesive application times (G2) resulted in a significant bond strength decrease compared to the control group (G1) and all other test groups, including the group with halved acid etching, but 20 s of adhesive application time (G6). No significant differences in bond strength were found for groups with multiplied etching times and an adhesive application time of 20 s or more, when compared to the control group (G1). In conclusion, a universal adhesive application time of at least 20 s is recommended when bonding to over-etched dentin.
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Affiliation(s)
- Phoebe Burrer
- Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (H.D.); (T.A.); (T.T.T.)
| | - Hoang Dang
- Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (H.D.); (T.A.); (T.T.T.)
| | - Matej Par
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gunduliceva 5, 10000 Zagreb, Croatia;
| | - Thomas Attin
- Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (H.D.); (T.A.); (T.T.T.)
| | - Tobias T. Tauböck
- Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (H.D.); (T.A.); (T.T.T.)
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9
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Malaquias P, Gutiérrez MF, Sutil E, Matos TDP, Hanzen TA, Reis A, Perdigão J, Loguercio AD. Universal adhesives and dual-cured core buildup composite material: adhesive properties. J Appl Oral Sci 2020; 28:e20200121. [PMID: 33263646 PMCID: PMC7714263 DOI: 10.1590/1678-7757-2020-0121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 08/27/2020] [Indexed: 11/22/2022] Open
Abstract
Dual-cured buildup composites and simplified light-cured adhesive systems are mixed with a chemical activator to prevent the incompatibility between them.
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Affiliation(s)
- Pâmela Malaquias
- Universidade Estadual de Ponta Grossa, Departamento de Odontologia, Ponta Grossa, PR, Brasil
| | - Mario Felipe Gutiérrez
- Universidad de los Andes, Facultad de Odontologia, Chile. Universidas de Chile, Facultad de odontogia, Instituto de Investigación en Ciencias Odontológica, Chile
| | - Elisama Sutil
- Universidade Estadual de Ponta Grossa, Departamento de Odontologia, Ponta Grossa, PR, Brasil
| | - Thalita de Paris Matos
- Universidade Estadual de Ponta Grossa, Departamento de Odontologia, Ponta Grossa, PR, Brasil
| | - Taise Alessandra Hanzen
- Universidade Estadual de Ponta Grossa, Departamento de Odontologia, Ponta Grossa, PR, Brasil
| | - Alessandra Reis
- Universidade Estadual de Ponta Grossa, Departamento de Odontologia, Ponta Grossa, PR, Brasil
| | - Jorge Perdigão
- University of Minnesota, Division of Operative Dentistry, Department of Restorative Sciences, Minnesota, Minneapolis, MN, USA
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Soontornvatin V, Prasansuttiporn T, Thanatvarakorn O, Jittidecharaks S, Hosaka K, Foxton RM, Nakajima M. Bond strengths of three-step etch-and-rinse adhesives to silane contaminated dentin. Dent Mater J 2020; 40:385-392. [PMID: 33208575 DOI: 10.4012/dmj.2020-025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to evaluate the effect of silane coupling agent contamination on the microtensile bond strength (µTBS) of 3-step etch-and-rinse adhesives on dentin. Flat occlusal dentin surfaces were prepared and randomly divided into 8 groups (n=20) based on the tested adhesives; Scotchbond Multi-purpose or Optibond FL, with contamination of an experimental silane (2 vol% of 3-m ethacryloxypropyltrimethoxysilane at pH 4.5) before acid-etching, after-etching or after-priming; while the groups without silane contamination served as controls. µTBS data were analyzed by two-way ANOVA and Tukey's HSD tests at a significance level of 0.05. Additional specimens of contaminated dentin were used to analyze changes in the organic molecules by Fourier transform infrared spectroscopy (FTIR). Silane contamination before acid-etching did not significantly change µTBS (p>0.05), but contamination after-etching and after-priming significantly decreased µTBS of both adhesives (p<0.05). Silane contamination had an adverse effect on the dentin bond strength of 3-step etch-and-rinse adhesives especially after-priming.
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Affiliation(s)
- Vasavat Soontornvatin
- Dentist, Dental Section, Nongsung Hospital.,Master of Science Program in Dentistry, Faculty of Dentistry, Chiang Mai University
| | - Taweesak Prasansuttiporn
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University.,Center of Excellence in Materials Science and Technology, Chiang Mai University
| | | | - Sumana Jittidecharaks
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University
| | - Keiichi Hosaka
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Richard M Foxton
- Restorative Dentistry, King's College London Dental Institute, King's College London
| | - Masatoshi Nakajima
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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11
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Polyphenol-enriched extract of Arrabidaea chica used as a dentin pretreatment or incorporated into a total-etching adhesive system: Effects on bonding stability and physical characterization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111235. [PMID: 32806286 DOI: 10.1016/j.msec.2020.111235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 05/15/2020] [Accepted: 06/21/2020] [Indexed: 11/22/2022]
Abstract
The aim of this paper was to evaluate the physical properties and the long-term bond strength of a 2.5% polyphenol-enriched extract of Arrabidaea chica (AC) incorporated into both the phosphoric acid and the primer of a three-step total-etch adhesive, or into an aqueous solution as a dentin pretreatment. Fifty dentin surfaces received the treatments (n = 10): CON (control) - application of the three-step adhesive system (Adper Scotchbond Multipurpose, 3M ESPE); WAT - distilled water used as a pretreatment after dentin etching and before application of the adhesive system; ACPA - AC incorporated into the phosphoric acid; ACW - dentin pre-treatment with AC incorporated into an aqueous solution after etching; ACP - AC incorporated into the primer. Microtensile bond strength tests were performed after 24 h, 6 and 12 months of storage. Slices from the resin-dentin interface were obtained for scanning electron microscopy analysis of the hybrid layer. Degree of conversion of AC incorporated into the primer was evaluated. The particle size, polydispersity index and zeta potential of all the solutions prepared by incorporating AC (phosphoric acid, primer and distilled water) were measured by dynamic light scattering, which brought about changes after incorporation. Degree of conversion of the primer was not affected after incorporating AC. ACP showed lower microtensile bond strength values than the other groups. Bond strength decreased after 6 months of storage, stabilizing at the 12-month evaluation. Therefore, use of AC incorporated into the primer led to lower bond strength values, since AC modified the physical properties (particle size, polydispersity index and zeta potential) of the primer, but did not change the degree of conversion. Application of AC as a dentin pretreatment did not affect bond strength or the micromorphological characteristics of the hybrid layer.
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12
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Michelotti G, Niedzwiecki M, Bidjan D, Dieckmann P, Deari S, Attin T, Tauböck TT. Silane Effect of Universal Adhesive on the Composite-Composite Repair Bond Strength after Different Surface Pretreatments. Polymers (Basel) 2020; 12:E950. [PMID: 32325811 PMCID: PMC7240492 DOI: 10.3390/polym12040950] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/14/2020] [Accepted: 04/17/2020] [Indexed: 11/16/2022] Open
Abstract
This study investigated the impact of a separate silanization step on the repair bond strength of composite substrates using a universal adhesive after various mechanical surface treatments. Composite specimens were aged and exposed to the following mechanical roughening treatments: diamond bur abrasion, aluminum oxide sandblasting, or silica coating. The specimens were then either left untreated or conditioned with universal adhesive (Scotchbond Universal), or a silane coupling agent was applied before the use of the universal adhesive or a conventional adhesive (Optibond FL). The conditioned surfaces and fresh substrate (positive control group) were covered with repair composite, and microtensile bond strength testing was performed. The significantly highest bond strength was obtained in the positive control group. Repair bond strength of the universal adhesive applied after a separate silanization step was similar to that without prior silanization, independent of the mechanical surface treatment. Moreover, after silica coating, no significant differences in the repair bond strength were detected among the different adhesive treatments. In conclusion, a separate silanization step before surface conditioning with the universal adhesive does not enhance the repair bond strength. On silica-coated composite substrates, repair bond strength values of the universal adhesive were similar to those of the conventional adhesive.
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Affiliation(s)
- Gioia Michelotti
- Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (M.N.); (D.B.); (P.D.); (S.D.); (T.A.); (T.T.T.)
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13
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Guo X, Cheng Q, Wang H, Yu G, Tian Z, Shi Z, Cui Z, Zhu S. Synthesis, characterization, and aging resistance of the polyurethane dimethacrylate layer for dental restorations. Eur J Oral Sci 2020; 128:89-99. [PMID: 32032451 DOI: 10.1111/eos.12674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2019] [Indexed: 01/22/2023]
Abstract
In this study, polyurethane dimethacrylate (PUDMA) was synthetized from different components and incorporated into a direct resin composite restoration system with the aim to buffer tooth-resin interfacial stresses and maintain the marginal adaptation. The tensile strength, elongation at fracture (ε), and thermal stability of the PUDMA layer were characterized, showing a tensile strength of 22 MPa, an ε of 112%, and a thermal decomposition temperature of about 282°C. In addition, the degree of conversion, water sorption/solubility, hydrophobicity, microtensile bond strength (μTBS), marginal leakage, and cytotoxicity in vitro were evaluated for the PUDMA layer. The data were analyzed using one-way ANOVA, except for leakage depths (which were analyzed using the Wilcoxon paired-rank test). The level of significance was set at 0.05. Compared with dental adhesives, PUDMA displayed a higher degree of conversion, lower water sorption/solubility, and improved hydrophobicity and biocompatibility in vitro. After thermocycling, the μTBS of the restoration system containing PUDMA had increased compared with the μTBS at 24 h. Restorations containing PUDMA showed lower leakage depths than those which did not contain PUDMA. In conclusion, because of its hydrophobic and elastic nature, the PUDMA layer, when used as an intermediate between tooth and resin restoratives, may buffer interfacial stresses, improve the stability and durability of the bonding interface, and reduce microleakage.
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Affiliation(s)
- Xiaowei Guo
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Qiuli Cheng
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Han Wang
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Gaigai Yu
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Zilu Tian
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Zuosen Shi
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Zhanchen Cui
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Song Zhu
- Department of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun, China
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Lorenzetti CC, Bortolatto JF, Ramos ATPR, Shinohara AL, Saad JRC, Kuga MC. The effectiveness of glass ionomer cement as a fiber post cementation system in endodontically treated teeth. Microsc Res Tech 2019; 82:1191-1197. [PMID: 30920097 DOI: 10.1002/jemt.23268] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/19/2019] [Accepted: 03/11/2019] [Indexed: 11/10/2022]
Abstract
This study compared the performance of a glass ionomer (GC Gold Label 1, GIC) as a fiber post cementation system for glass fiber posts with a self-adhesive resin cement (Relyx U200, RUC) and a conventional resin cement system (Scotchbond Muli-Purpose and Relyx ARC, RAC). Thirty endodontically treated canines were randomly divided in three groups (n = 10), according to the fiber post cementation system: (RAC)-Scotchbond Multi-Purpose and Relyx X ARC; (RUC)-Relyx U200 and (GIC)-GC Gold Label 1 Luting & Lining. Rhodamine was incorporated into the cementation system prior to the fiber post cementation. After glass fiber post cementation, roots were incubated in artificial saliva for 6 months. After that, specimens from the cervical, middle, and apical thirds of the post space were prepared and analyzed using a push-out bond strength test and confocal laser microscopy. ANOVA one way and Tukey tests showed that GIC and RUC demonstrated similar push-out bond strength values, independently of the post space third (p > .05); however, values were greater than those shown by RAC (p < .05). For dentin penetrability, GIC and RUC also had similar results (p > 0.05) and lower than RAC (p < 0.05). Inside the root canal, the cementation system using glass ionomer cement (GC Gold Label 1 Luting & Lining) has similar push-out bond strength to the self-adhesive resin cement (Relyx U200) and these were higher than the conventional resin (Relyx ARC), despite its higher dentin penetrability.
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Affiliation(s)
- Camila C Lorenzetti
- Department of Restorative Dentistry, Araraquara School of Dentistry, University of Sao Paulo State, Araraquara, Brazil
| | | | - Anna T P R Ramos
- Department of Restorative Dentistry, Araraquara School of Dentistry, University of Sao Paulo State, Araraquara, Brazil
| | - André L Shinohara
- Department of Biological Sciences, Bauru Dental School, University of Sao Paulo, Ribeirão Preto, Brazil
| | - Jose R C Saad
- Department of Restorative Dentistry, Araraquara School of Dentistry, University of Sao Paulo State, Araraquara, Brazil
| | - Milton C Kuga
- Department of Restorative Dentistry, Araraquara School of Dentistry, University of Sao Paulo State, Araraquara, Brazil
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Lapinska B, Konieczka M, Zarzycka B, Sokolowski K, Grzegorczyk J, Lukomska-Szymanska M. Flow Cytometry Analysis of Antibacterial Effects of Universal Dentin Bonding Agents on Streptococcus mutans. Molecules 2019; 24:E532. [PMID: 30717140 PMCID: PMC6384823 DOI: 10.3390/molecules24030532] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 01/23/2019] [Accepted: 01/31/2019] [Indexed: 12/20/2022] Open
Abstract
There is no consensus on the antibacterial activity of dentin bonding systems (DBS). Many study models have been used to evaluate the antimicrobial activity of dental materials. In this study, a novel detection method, flow cytometry, was introduced. It allows for evaluation of the antibacterial activity of DBS, based on assessment of the disruption of the bacterial physical membrane induced by DBS. The aim of the study was to evaluate the antibacterial properties of selected dentin bonding systems against Streptococcus mutans. The highest antibacterial activity against S. mutans was observed for Adhese Universal (99.68% dead cells) and was comparable to that of Prime&Bond Universal, OptiBond Universal, or Clearfil Universal Bond Quick (p > 0.05). The lowest activity of all tested systems was displayed by the multi-mode adhesive, Universal Bond (12.68% dead bacteria cells), followed by the self-etch adhesive, OptiBond FL (15.58% dead bacteria cells). The present study showed that in the case of two-component DBS, the primer exhibited higher antimicrobial activity than the adhesive (or bond) itself.
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Affiliation(s)
- Barbara Lapinska
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland.
| | - Magdalena Konieczka
- Department of Microbiology and Laboratory Medical Immunology, Medical University of Lodz, 92-213 Lodz, Poland.
| | - Beata Zarzycka
- Department of Microbiology and Laboratory Medical Immunology, Medical University of Lodz, 92-213 Lodz, Poland.
| | - Krzysztof Sokolowski
- Department of Conservative Dentistry, Medical University of Lodz, 92-213 Lodz, Poland.
| | - Janina Grzegorczyk
- Department of Microbiology and Laboratory Medical Immunology, Medical University of Lodz, 92-213 Lodz, Poland.
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Körner P, Sulejmani A, Wiedemeier DB, Attin T, Tauböck TT. Demineralized enamel reduces margin integrity of self-etch, but not of etch-and-rinse bonded composite restorations. Odontology 2018; 107:308-315. [DOI: 10.1007/s10266-018-0398-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/26/2018] [Indexed: 10/27/2022]
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Freitas SAAD, Lanza MDS, Carneiro KK, Loguercio AD, Bauer J. Evaluation of degree of conversion, microtensile bond strength and mechanical properties of three etch-and-rinse dental adhesives. POLIMEROS 2017. [DOI: 10.1590/0104-1428.02316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | | | | | | | - José Bauer
- Universidade Federal do Maranhão, Brazil
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18
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Kong K, Hiraishi N, Nassar M, Otsuki M, Yiu CK, Tagami J. Effect of phytic acid etchant on resin–dentin bonding: Monomer penetration and stability of dentin collagen. J Prosthodont Res 2017; 61:251-258. [DOI: 10.1016/j.jpor.2016.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 09/29/2016] [Accepted: 10/03/2016] [Indexed: 10/20/2022]
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Makishi P, Pacheco RR, Sadr A, Shimada Y, Sumi Y, Tagami J, Giannini M. Assessment of Self-Adhesive Resin Composites: Nondestructive Imaging of Resin-Dentin Interfacial Adaptation and Shear Bond Strength. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2015; 21:1523-1529. [PMID: 26592427 DOI: 10.1017/s1431927615015354] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Shear bond strength (SBS) and the interfacial adaptation (IA) of self-adhesive resin (SAR) composites to dentin were evaluated. Two SARs [Vertise Flow (VTF) and Fusio Liquid Dentin (FLD)] were evaluated and compared with a conventional restorative system [adhesive: OptiBond FL and composite: Herculite Précis (OBF/HP)]. Human third molars were used for SBS testing and IA imaging (n=7) using optical coherence tomography (OCT). Flattened dentin disks were prepared and the composites were applied into molds (2.4 mm diameter) that were positioned on dentin. Samples were subjected to SBS testing and OCT analysis, which considered an increase in signal intensity at the bonded interface as evidence of internal gaps. SBS data were analyzed by one-way analysis of variance and Tukey's test and IA data (% distribution of high brightness values) by Kruskal-Wallis and Dunn's test (p≤0.05). No statistically significant difference in SBS was observed between VTF (13.9±3.6 MPa) and FLD (11.3±3.2 MPa), whereas OBF/HP showed higher average strength (27.3±6.1 MPa). However, there was a statistically significant difference in IA when VTF (33.3%) was compared with FLD (1.2%) and OBF/HP (1.5%). The conventional restorative system exhibited superior SBS performance compared with SARs. However, the IA of FLD to dentin had values that were not significantly different from OBF/HP.
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Affiliation(s)
- Patricia Makishi
- Department of Restorative Dentistry,State University of Campinas,Avenue Limeira 901,Bairro Areião,Piracicaba,SP 13414-903,Brazil
| | - Rafael R Pacheco
- Department of Restorative Dentistry,State University of Campinas,Avenue Limeira 901,Bairro Areião,Piracicaba,SP 13414-903,Brazil
| | - Alireza Sadr
- Department of Restorative Dentistry,State University of Campinas,Avenue Limeira 901,Bairro Areião,Piracicaba,SP 13414-903,Brazil
| | - Yasushi Shimada
- Department of Restorative Dentistry,State University of Campinas,Avenue Limeira 901,Bairro Areião,Piracicaba,SP 13414-903,Brazil
| | - Yasunori Sumi
- Department of Restorative Dentistry,State University of Campinas,Avenue Limeira 901,Bairro Areião,Piracicaba,SP 13414-903,Brazil
| | - Junji Tagami
- Department of Restorative Dentistry,State University of Campinas,Avenue Limeira 901,Bairro Areião,Piracicaba,SP 13414-903,Brazil
| | - Marcelo Giannini
- Department of Restorative Dentistry,State University of Campinas,Avenue Limeira 901,Bairro Areião,Piracicaba,SP 13414-903,Brazil
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