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Basílio M, Gregorio R, Câmara JV, Serrano L, Campos PR, Pierote JJ, Groisman S, Pereira G, Barreto S. Influence of different photoinitiators on the resistance of union in bovine dentin: Experimental and microscopic study. J Clin Exp Dent 2021; 13:e132-e139. [PMID: 33574997 PMCID: PMC7864358 DOI: 10.4317/jced.57756] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 09/23/2020] [Indexed: 11/23/2022] Open
Abstract
Background To evaluate in vitro the influence of photoinitiators on the microtensile strength of adhesive systems and composite resins in bovine dentin.
Material and Methods Forty dentin obtained from bovine teeth were randomly distributed in four groups (n = 10) according to the different adhesive systems and composite resins used: G1 - AAPS + VAPS (Ambar APS + Vittra APS); G2- AAPS + O (Ambar APS + Opallis); G3 - A + VAPS (Ambar + Vittra APS) and G4 - A + O (Ambar + Opallis). After restoration with the composite, the samples were sectioned to obtain toothpicks that were subjected to the microtensile and nanofiltration test (1.0 mm/min).
Results The Kruskal-Wallis test did not show significant differences between the groups (p<0.05). The values in MPa were: AAPS + VAPS - 19.56 MPa; AAPS + O - 19.77 MPa; A + VAPS - 17.78 MPa; A + O - 22.44 MPa. The result of the Mann-Whitney test showed no significant differences depending on the adhesive (Ambar Universal- 19.11 MPa, Ambar APS Universal- 21.70 MPa) and the composite resin used (Vittra APS- 18.75 MPa, Opallis - 23.75 MPa). The AAPS + VAPS and AAPS + O groups showed intense silver nitrate infiltration. The A + APS group showed a moderate infiltration and the A + O group had a mild infiltration in the adhesive system/dentin interface.
Conclusions The use of different photoinitiators in the composition of adhesive systems and restorative composites did not affect their bond strength values and the presence of water in the solvent of the APS photoinitiator system had a negative influence, increasing the degree of infiltration in the hybrid layer when compared to the camphorquinone photoinitiator. Key words:Dentin, adhesive systems, composite resin, photoinitiators, tensile strength, nano-infiltration.
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Affiliation(s)
- Marcelo Basílio
- MSc, Department of Dental Clinic, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Renata Gregorio
- DDS, Department of Dental Clinic, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - João-Victor Câmara
- Master student, Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Lizandra Serrano
- DDS, Department of Dental Clinic, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Paulo-Ricardo Campos
- DDS, Department of Dental Clinic, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Josué-Junior Pierote
- Professor, Department of Dentistry, University of Santo Amaro, São Paulo, SP, Brazil
| | - Sonia Groisman
- Full Professor, Department of Social and Preventive Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Gisele Pereira
- Adjunct Professor, Department of Dental Clinic, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Suelem Barreto
- Professor, Department of Dental Clinic, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Penha KJDS, Torres CRG, Tavarez RRDJ, Firoozmand LM. Interaction effect of Nd:YAG laser and universal adhesive system for dentin sealing. J Clin Exp Dent 2020; 12:e1124-e1130. [PMID: 33282132 PMCID: PMC7700791 DOI: 10.4317/jced.57306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/02/2020] [Indexed: 12/02/2022] Open
Abstract
Background To evaluate the influence of the association of the universal adhesive system to different energy densities of the Nd:YAG laser on the hydraulic conductance of dentin.
Material and Methods Fifty bovine dentin discs were made. The samples were stratified into four groups (n = 10) according to the treatment performed; SBU- Adper Single Bond Universal (3M ESPE), SBU_60 - SBU associated with the Nd:YAG laser (60mJ, 10Hz, 0.6W - 47.77 J / cm²), SBU_80 - SBU associated with the Nd:YAG laser (80mJ, 10Hz, 0.8 W - 63.69 J / cm2) and C – dentin without treatment (smear layer). Hydraulic conductance measurements were taken 24 hours after the treatments (HC1) and after erosive challenge (HC2). Scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDX) helped to visualize the dentin after the different treatments. Scheffe and Games-Howell statistical tests were used to analyze hydraulic conductance (α = 0.05).
Results The treated dentin (SBU, SBU_60, and SBU_80) reduced HC1 when compared to dentin with smear layer (C) (p< 0.001). The erosive challenge has increased HC2 in SBU_60 and C (p< 0.001), and did not promote a significant difference in SBU_80 and SBU. The SEM / EDX analyzes showed an irregular and semi-permeable barrier on the surfaces of the treated dentin.
Conclusions The association of universal adhesive with Nd:YAG can be an effective alternative for the occlusion of dentinal tubules, whereas higher energy per pulse Nd:YAG (SBU_80) can increase the resistance to permeability when exposed to the erosive challenge. Key words:Dentin, permeability of dentin, Nd:YAG Laser, adhesives.
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Affiliation(s)
- Karla-Janilee-de Souza Penha
- DDS, MSc, PhD student, Department of Dentistry, Federal University of Maranhão (UFMA), São Luís, Maranhão, Brazil
| | - Carlos-Rocha-Gomes Torres
- DDS, PhD, Professor, Department of Restorative Dentistry, Institute of Science and Technology of São José dos Campos (UNESP), São José dos Campos, SP, Brazil
| | | | - Leily-Macedo Firoozmand
- DDS, MSc, PhD, Professor, Department of Dentistry, Federal University of Maranhão (UFMA), São Luís, Maranhão, Brazil
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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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Alshahrani A, Bin-Shuwaish MS, Al-Hamdan RS, Almohareb T, Maawadh AM, Al Deeb M, Alhenaki AM, Abduljabbar T, Vohra F. Graphene oxide nano-filler based experimental dentine adhesive. A SEM / EDX, Micro-Raman and microtensile bond strength analysis. J Appl Biomater Funct Mater 2020; 18:2280800020966936. [PMID: 33264047 DOI: 10.1177/2280800020966936] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
AIM The study aimed to assess graphene oxide (GO) adhesive and its dentin interaction using scanning electron microscopy (SEM), MicroRaman spectroscopy and Microtensile bond strength (μTBS). MATERIALS AND METHODS Experimental GOA and control adhesives (CA) were fabricated. Presence of GO within the experimental adhesive resin was assessed using SEM and Micro-Raman spectroscopy. Ninety specimens were prepared, sixty teeth were utilized for μTBS, twenty for SEM analysis of interface for CA and GOA and ten were assessed using microRaman spectroscopy. Each specimen was sectioned and exposed dentine was conditioned (35% phosphoric acid) for 10 s. The surface was coated twice with adhesive (15 s) and photopolymerized (20 s). Composite build-up on specimen was photo-polymerized. Among the bonded specimens, thirty specimen were assessed using Micro-Raman spectrometer, SEM and energy dispersive X-ray spectroscopy (EDX), whereas remaining specimens were divided in to three sub-groups (n = 10) based on the storage of 24 h, 8 weeks and 16 weeks. μTBS testing was performed at a crosshead speed of 0.5 mm/min using a microtensile tester. The means of μ-tbs were analyzed using ANOVA and post hoc Tukey multiple comparisons test. RESULTS No significant difference in μTBS of CA and GOA was observed. Storage time presented a significant interaction on the μTBS (p < 0.01). The highest and lowest μTBS was evident in CA (30.47 (3.55)) at 24 h and CA (22.88 (3.61)) at 18 weeks. Micro-Raman analysis identified peaks of 1200 cm-1 to 1800 cm1, D and G bands of GO nanoparticles in the resin. Uniform distribution of graphene oxide nanoparticles was present at the adhesive and hybrid layer. CONCLUSION GO showed interaction within adhesive and tooth dentin similar to CA, along with formation of hybrid layer. In ideal conditions (absence of nanoleakage), graphene oxide modified adhesive shows comparable bond strength and durability of resin dentine bond.
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Affiliation(s)
- Abdullah Alshahrani
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed S Bin-Shuwaish
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Rana S Al-Hamdan
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Thamer Almohareb
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed M Maawadh
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Modhi Al Deeb
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Aasem M Alhenaki
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Fahim Vohra
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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ÖZKANOĞLU S, AKİN G. COMPARISON OF THE DENTIN SHEAR BOND STRENGTHS AND MICROLEAKAGE VALUES OF THREE DIFFERENT UNIVERSAL ADHESIVE SYSTEMS. CUMHURIYET DENTAL JOURNAL 2020. [DOI: 10.7126/cumudj.747021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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ATILAN YAVUZ S, SURMELİOGLU D. EVALUATION OF CYTOTOXICITY OF DIFFERENT UNIVERSAL BONDS USING THE XCELLIGENCE SYSTEM. CUMHURIYET DENTAL JOURNAL 2020. [DOI: 10.7126/cumudj.792699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Gutierrez MF, Perdigão J, Malaquias P, Cardenas AM, Siqueira F, Hass V, Reis A, Loguercio AD. Effect of Methacryloyloxydecyl Dihydrogen Phosphate–Containing Silane and Adhesive Used Alone or in Combination on the Bond Strength and Chemical Interaction With Zirconia Ceramics Under Thermal Aging. Oper Dent 2020; 45:516-527. [DOI: 10.2341/18-093-l] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2019] [Indexed: 11/23/2022]
Abstract
Clinical Relevance
Achieving durable bonding to zirconia is fundamental for the application of a methacryloyloxydecyl dihydrogen phosphate (MDP)–containing silane solution or an MDP-containing silane solution associated with an MDP-containing universal adhesive.
SUMMARY
Objectives: To evaluate the effect of a methacryloyloxydecyl dihydrogen phosphate (MDP)–containing silane coupling agent and universal adhesive, used alone or in combination, on the microshear bond strength (μSBS) to zirconia after 24 hours of water storage (24h) and after 10,000 thermocycles (TC), complemented with chemical analysis of the surface to establish the presence of MDP on the surface of the zirconia after bonding procedures.
Methods and Materials: Thirty computer-aided design/computed-aided manufacturing blocks of zirconia were cut into four sections (6×6×6 mm) and sintered. Zirconia sections (n=96) were assigned to 24 groups according to three factors: 1) silane (no silane, Monobond S [MBS], Monobond P [MB+]), 2) adhesive + resin cement (no adhesive + Enforce [ENF], no adhesive + RelyX Ultimate [REX], Prime&Bond Elect + Enforce [PBE/ENF], Scotchbond Universal + RelyX Ultimate [SBU/REX]), and 3) thermocycling (no thermocycling [24h], 10,000 thermocycles [TC]). Upon silane/adhesive application, cylinder-shaped matrices were filled with resin cement and light cured. Specimens were tested in μSBS (1.0 mm/min) after 24h or TC. The μSBS data were analyzed using twoway ANOVA and Tukey’s post hoc test (α=0.05). In addition, micro-Raman spectroscopy was used to analyze the zirconia surface for immediate chemical interaction analysis (n=24).
Results: For the 24h condition, PBE/ENF resulted in lower mean μSBS than both groups with silane without PBE (MBS and MB+ groups; p<0.001). SBU alone or MB+ alone and MB+ associated with SBU showed the highest mean μSBS (p<0.001). For the TC condition, all groups showed a significant decrease in mean μSBS compared with those of 24h (p<0.001), with the exception of MB+ associated to SBU (p>0.05). However, the application of MB+ alone or MB+ associated to SBU resulted in higher mean μSBS (p<0.001) after TC than the remaining TC groups. In terms of chemical interaction, only the SBU groups, alone or combined with both of the silane agents, were associated with the methacrylate groups after rinsing.
Conclusions: The results of the current study support the use of an MDP-containing silane solution or an MDP-containing silane solution associated with an MDP-containing universal adhesive for bonding to air-abraded zirconia, as a more stable bonding after thermocycling.
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Demirel G, Demirsoy FFK, Irmak Ö. Cytotoxicity evaluation of eluates from universal adhesives by real-time cell analysis. Dent Mater J 2020; 39:815-824. [PMID: 32507798 DOI: 10.4012/dmj.2019-221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to evaluate the cytotoxicity of universal adhesives on L929 mouse fibroblast cell line by using a real-time cell analysis. In order to obtain extract, six different cured dental adhesives were immersed in Dulbecco's Modified Eagle's Medium (DMEM) at 37°C for 24 h. A real-time cell analysis system was used to assess cytotoxicity of the dental adhesives. After seeding 25,000 cells/300 μL/well cell suspensions into the wells of an e-plate, fibroblasts were exposed to extracts of tested adhesives at varying dilutions (1:1, 1:2, and 1:10) and observed at every 30 min intervals for 72 h. Three-way ANOVA one factor repeated measures were used to analyze the results (α=0.05). All tested adhesives induced cell viability loss, cell morphology alteration, and cell death depending on extract concentration and time. Cell viability of L929 cells to between 44 and 10% for 1:1 diluted extracts, at 72 h, when compared to the negative control.
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Affiliation(s)
- Gülbike Demirel
- Faculty of Dentistry, Department of Restorative Dentistry, Ankara University
| | | | - Özgür Irmak
- Faculty of Dentistry, Department of Restorative Dentistry, Near East University
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Zhang Z, Yu J, Yao C, Yang H, Huang C. New perspective to improve dentin-adhesive interface stability by using dimethyl sulfoxide wet-bonding and epigallocatechin-3-gallate. Dent Mater 2020; 36:1452-1463. [PMID: 32943231 DOI: 10.1016/j.dental.2020.08.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 06/07/2020] [Accepted: 08/29/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To determine whether dentin-adhesive interface stability would be improved by dimethyl sulfoxide (DMSO) wet-bonding and epigallocatechin-3-gallate (EGCG). METHODS Etched dentin surfaces from sound third molars were randomly assigned to five groups according to different pretreatments: group 1, water wet-bonding (WWB); group 2, 50% (v/v) DMSO wet-bonding (DWB); groups 3-5, 0.01, 0.1, and 1 wt% EGCG-incorporated 50% (v/v) DMSO wet-bonding (0.01%, 0.1%, and 1%EGCG/DWB). Singlebond universal adhesive was applied to the pretreated dentin surfaces, and composite buildups were constructed. Microtensile bond strength (μTBS) and interfacial nanoleakage were respectively examined after 24 h water storage or 1-month collagenase ageing. In situ zymography andStreptococcus mutans (S. mutans) biofilm formation were also investigated. RESULTS After collagenase ageing, μTBS of groups 4 (0.1%EGCG/DWB) and 5 (1%EGCG/DWB) did not decrease (p > 0.05) and was higher than that of the other three groups (p < 0.05). Nanoleakage expression of groups 4 and 5 was less than that of the other three groups (p < 0.05), regardless of collagenase ageing. Metalloproteinase activities within the hybrid layer in groups 4 and 5 were suppressed. Furthermore, pretreatment with 1%EGCG/DWB (group 5) efficiently inhibited S. mutans biofilm formation along the dentin-adhesive interface. SIGNIFICANCE This study suggested that the synergistic action of DMSO wet-bonding and EGCG can effectively improve dentin-adhesive interface stability. This strategy provides clinicians with promising benefits to achieve desirable dentin bonding performance and to prevent secondary caries, thereby extending the longevity of adhesive restorations.
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Affiliation(s)
- Zhongni Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jian Yu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Chenmin Yao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hongye Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
| | - Cui Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory for Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
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de Paris Matos T, Perdigão J, de Paula E, Coppla F, Hass V, Scheffer RF, Reis A, Loguercio AD. Five-year clinical evaluation of a universal adhesive: A randomized double-blind trial. Dent Mater 2020; 36:1474-1485. [PMID: 32933775 DOI: 10.1016/j.dental.2020.08.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/26/2020] [Accepted: 08/29/2020] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To evaluate the five-year clinical performance of Scotchbond Universal Adhesive (SU; 3M Oral Care, St. Paul, MN, USA) in non-carious cervical lesions (NCCLs) using two evaluation criteria. METHODS Thirty-nine patients participated in this study. Two hundred restorations were assigned to four groups: SU-ERm: etch-and-rinse + moist dentin; SU-ERd: etch-and-rinse + dry dentin; SU-Set: selective enamel etching; and SU-SE: self-etch. A nanofilled composite resin was placed incrementally. The restorations were evaluated at baseline and after 5 years using both the World Dental Federation (FDI) and the United States Public Health Service (USPHS) criteria. The survival rates (retention/fractures) were calculated with the Kaplan-Meier and the log-rank test. For the secondary outcomes, Friedman repeated measures analysis of variance by rank was applied (α = 0.05). RESULTS After 5 years the recall rate was 86%. The retention/fracture rates were 93% for Erm and ERd, 88.4% for SEet and 81.4% for SE. A significant difference was observed for SE vs. ERd and SE vs. ERm (p = 0.01). Also, marginal discoloration and adaptation showed significant differences with ERm and ERd resulting in fewer marginal discrepancies than SE (p < 0.05). SIGNIFICANCE After 5 years, the clinical behavior of the universal adhesive in the etch-and-rinse strategy was better when compared to the self-etch strategy. The use of selective enamel etching is highly recommended for the self-etch strategy. The FDI and USPHS evaluation criteria showed similar results after 5 years.
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Affiliation(s)
- Thalita de Paris Matos
- School of Dentistry, Department of Restorative Dentistry, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Jorge Perdigão
- University of Minnesota, School of Dentistry, Department of Restorative Sciences, Minneapolis, MN, USA.
| | - Eloisa de Paula
- Department of Restorative Dentistry, School of Dentistry, State University of West Paraná, Cascavel, PR, Brazil; Methodist University, Santos, SP, Brazil
| | - Fabiana Coppla
- School of Dentistry, Centro de Ensino Superior dos Campos Gerais, Ponta Grossa, PR, Brazil
| | - Viviane Hass
- Postgraduate Program in Dentistry, University Northern Parana, Londrina, PR, Brazil
| | - Rafael F Scheffer
- Department of Restorative Dentistry, School of Dentistry, State University of West Paraná, Cascavel, PR, Brazil
| | - Alessandra Reis
- School of Dentistry, Department of Restorative Dentistry, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Alessandro D Loguercio
- School of Dentistry, Department of Restorative Dentistry, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
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Dias FA, Conto MVR, Guiraldo RD, Geha O, Paloco EAC, Fernandes TMF, Berger SB. Does Pigment Incorporation into Regular Composite Resins for Posterior Buildups Alter Their Bond Strength? Braz Dent J 2020; 31:440-444. [PMID: 32901722 DOI: 10.1590/0103-6440202003332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 06/05/2020] [Indexed: 11/22/2022] Open
Abstract
Posterior build-ups are auxiliary devices to orthodontic treatment which are made with resin-based or glass ionomer composites. Their removal requires care to protect the tooth surface, therefore, pigmented materials are preferred for a better visualization. This study proposed a pigmentation experimental technique of a regular composite resin, evaluating the microshear bond strength test (µ-SBT) of this experimental pigmented resin and comparing with a blue-colored polyacid-modified composite resin, used for posterior buildups. Forty-eight buccal and lingual surfaces of human teeth were used and randomly divided into 4 groups (n=12). The groups were divided into: C (control), regular composite resin; P, regular composite resin pigmented; UBL, Ultra Band Lok™; OB, Ortho Bite™. The composites were bonded using a matrix to obtain microcylinders and prepared for each experimental groups. The samples were then stored in distilled water for 24h at 37°C followed by a µ-SBT. The types of bond failures were evaluated using a stereoscopic magnifying glass (10×). The data were analyzed by ANOVA with Fisher post hoc and Dunnett´s test. Means of µ-SBT± standard deviation (MPa) were: C (39.98a±13.0), P (40.09a± 14.3); UBL (33.26ab±8.6); OB (28.70b±5.5). The most prevalent type of failure was adhesive (80.4%). Further, was not observed a statistically significant correlation between the bond strength values and failure patterns. The pigmentation of a commercially available resin did not alter the µ-SBT and exhibited similar adhesiveness as a polyacid-modified composite resin.
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Affiliation(s)
- Flaviana Alves Dias
- Department of Restorative Dentistry, Universidade do Norte do Paraná, UNOPAR - Londrina, PR, Brazil
| | | | - Ricardo Danil Guiraldo
- Department of Restorative Dentistry, Universidade do Norte do Paraná, UNOPAR - Londrina, PR, Brazil
| | - Omar Geha
- Department of Restorative Dentistry, Universidade do Norte do Paraná, UNOPAR - Londrina, PR, Brazil
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de Albuquerque EG, Warol F, Calazans FS, Poubel LA, Marins SS, Matos T, de Souza JJ, Reis A, de Oliveira Barceleiro M, Loguercio AD. A New Dual-cure Universal Simplified Adhesive: 18-month Randomized Multicenter Clinical Trial. Oper Dent 2020; 45:E255-E270. [PMID: 33170938 DOI: 10.2341/19-144-c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2019] [Indexed: 11/23/2022]
Abstract
CLINICAL RELEVANCE Non-carious cervical lesion restorations using a dual-cure universal adhesive in self-etch and etch-and-rinse mode showed satisfactory clinical performance after 18 months. SUMMARY Objectives: The objective of this multicenter, double-blind, split-mouth randomized clinical trial was to evaluate the clinical performance of a new dual-cure universal adhesive system (Futurabond U, Voco GmBH) when applied using different strategies over a period of 18 months.Methods and Materials: Fifty patients participated in this study. Two hundred non-carious cervical lesions were restored using the adhesive Futurabond U according to four adhesive strategies (n=50 per group): only self-etch (SEE), selective enamel etching + self-etch (SET), etch-and-rinse with dry dentin (ERDry), and etch-and-rinse with wet dentin (ERWet). After the adhesive application, cavities were restored using Admira Fusion composite resin. These restorations were evaluated according to FDI World Dental Federation criteria for the following characteristics: retention/fracture, marginal adaptation, marginal staining, postoperative sensitivity, and caries recurrence.Results: After 18 months, only four patients (12 months: one patient, n=4 restorations; and 18 months: three patients, n=12 restorations) were not evaluated. Fourteen restorations were lost after 18 months of clinical evaluation (four for SEE, three for SET, three for ERDry, and four for ERWet). The retention rates for 18 months (95% confidence interval) were 92% (81%-97%) for SEE, 94% (83%-97%) for SET, 94% (83%-97%) for ERDry, and 92% (81%-97%) for ERWet (p>0.05). Thirty-eight restorations were considered to have minor discrepancies in marginal adaptation at the 18-month recall (13 for SEE, 13 for SET, six for ERDry, and six for ERWet; p>0.05). Fourteen restorations were detected as a minor marginal discoloration at the 18-month recall (six for SEE, six for SET, one for ERDry, and one for ERWet; p>0.05). However, all were considered clinically acceptable. No restorations showed postoperative sensitivity or caries recurrence at the time.Conclusion: The clinical performance of the Futurabond U did not depend on the bonding strategy used, and it was considered reliable after 18 months of clinical evaluation, although more marginal discrepancy was observed in the self-etch group.
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Study of penetration ability of adhesive systems on temporary teeth by confocal microscopy. BIOMEDICAL PHOTONICS 2020. [DOI: 10.24931/2413-9432-2020-9-2-6-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this work, the authors evaluate the effectiveness of various adhesive systems (AS) in the temporary teeth restoration with composite materials. For this study, the authors used temporary teeth extracted for orthodontic reasons or lost due to a physiological change. Enamel samples with dentin were made from these teeth. Rhodamine B fluorochrome was added to each of the adhesive systems used. For the greater practical significance of research results, adhesive systems of several generations (IV, V, and VII) were chosen. In each sample, a cavity was prepared, and adhesive preparation was carried out according to the AS manufacturer instructions, followed by restoration with a composite material. Then, longitudinal slits were made so that the areas of enamel and dentin for which an adhesive protocol and restoration were performed could be observed in their entirety. The effectiveness of various generations was determined by the depth of penetration of AS components into the dentinal tubules. Fluorescent confocal microscopy was used to visualize the penetration ability of AS. Based on the results of the study, the authors concluded that IV and V generations of AS are the most effective.
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Leyva Del Rio D, Sartori N, Tomblin NB, Phark JH, Pardi V, Murata RM, Duarte S. Bioactive Dental Adhesive System With tt-Farnesol: Effects on Dental Biofilm and Bonding Properties. Front Bioeng Biotechnol 2020; 8:865. [PMID: 32793584 PMCID: PMC7390972 DOI: 10.3389/fbioe.2020.00865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 07/06/2020] [Indexed: 11/16/2022] Open
Abstract
Background Composite dental restorations are commonly used to restore cavitated carious lesions. Unfortunately, the main reason for failure is the development of secondary caries adjacent to the restoration. To improve the long-term survival of restorations, antibacterial agents have been added into dental materials. In this study, we assessed the antibacterial and bonding capacity of a commercial universal dental adhesive incorporated with the antibacterial agent tt-farnesol creating 3 experimental adhesives: 0.38% (v/v), 1.90% (v/v), and 3.80% (v/v), plus a control (no incorporation of tt-farnesol). Methods The antibacterial activity was evaluated by assessing colony-forming units (CFU), biofilm dry weight (DW) and production of extracellular insoluble polysaccharides (EIP) at day 2, 3, and 5 of biofilm growth post surface treatment on the surface of composite disks. The effect of tt-farnesol on the chemical and bonding capacity of the adhesive system was assessed via pH analysis, degree of conversion (DC), and microtensile bond strengths to human dentin in both self-etch and etch-and-rinse application modes. A qualitative analysis of the effects of tt-farnesol on biofilm formation was evaluated using scanning electron microscopy (SEM). The sealing capacity of all adhesive systems tested was evaluated using confocal laser scanning microscopy (CLSM). Results The 3.80% (v/v) experimental adhesive exhibited the lowest CFU count and lowest production of EIP at day 5. DW and pH values did no exhibit statistical differences among all tested groups. Bond strengths and DC decreased with the incorporation of the antibacterial agent into the adhesive system regardless of the concentration of tt-farnesol. Conclusion The incorporation of tt-farnesol into the adhesive system significantly reduced bacterial viability and production of EIP; however, the bonding properties of the experimental dental adhesives were altered.
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Affiliation(s)
- Diana Leyva Del Rio
- Advanced Program in Operative and Adhesive Dentistry, Division of Restorative Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, United States
| | - Neimar Sartori
- Advanced Program in Operative and Adhesive Dentistry, Division of Restorative Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, United States
| | - Nichole Barton Tomblin
- Division of Periodontology Diagnostic Sciences, Dental Hygiene & Biomedical Science, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, United States
| | - Jin-Ho Phark
- Advanced Program in Operative and Adhesive Dentistry, Division of Restorative Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, United States
| | - Vanessa Pardi
- Department of Foundational Sciences, School of Dental Medicine, East Carolina University, Greenville, NC, United States
| | - Ramiro M Murata
- Department of Foundational Sciences, School of Dental Medicine, East Carolina University, Greenville, NC, United States
| | - Sillas Duarte
- Advanced Program in Operative and Adhesive Dentistry, Division of Restorative Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, United States
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Kazemi-Yazdi H, Saeed-Nezhad M, Rezaei S. Effect of Chlorhexidine on durability of two self-etch adhesive systems. J Clin Exp Dent 2020; 12:e663-e669. [PMID: 32904985 PMCID: PMC7462379 DOI: 10.4317/jced.56873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 04/26/2020] [Indexed: 12/04/2022] Open
Abstract
Background Despite of the rapid development in the field of dental adhesives, the issue of reduction in dentin bond durability has still not been resolved. The activity of dentinal endogenous enzymes such as MMPs is one of the most important causes of failure in resin composite restorations. The aim of this study was to investigate the influence of Chlorhexidine on micro-tensile bond strength of two types of commercially available self-etch adhesives.
Material and Methods Twenty four sound and freshly extracted molars were selected. Four standardized flat mid-coronal dentinal disks were prepared from each tooth. The specimens were randomly assigned to 6 groups (n=16). Groups A(control group) and B were treated with Clearfill SE Bond based on the manufacturer’s instructions. Groups C and D were treated with 2% Chlorhexidine 60 seconds before applying Clearfill SE Bond. Groups E and F were treated with Peak Universal Bond according to the manufacturer’s instructions. All groups were stored in distilled water in room temperature. Microtensile bond strength in groups A, C, and E were tested 24 hours after preparation, while microtensile bond strength in groups B, D, and F were tested after 3 months storage and 3000 thermal cycles(5-55 °C). Statistical analysis was performed with SPSS 20 and µTBS test results were analyzed using the Two-way ANOVA test.
Results µTBS was not significantly different between groups A, C, and E after 24 hours (P>0.5). There was no significant difference between groups B (Clearfill SE Bond + Aging) and D (Clearfill SE Bond + 2% CHX + Aging). The Peak Universal µTBS significantly decreased after the aging procedure (P<0.001).
Conclusions Based on the findings of this study, pretreatment with 2% CHX had no negative effect on the Clearfill SE Bond µTBS. However the µTBS of 0.2% CHX contained Peak Universal adhesive decreased significantly after aging. Key words:Self-etch adhesives, Micro-tensile bond strength, chlorhexidine, bond durability.
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Affiliation(s)
- Haleh Kazemi-Yazdi
- DDS, MSc, Specialist in Operative Dentistry, Associate Professor, Operative Dentistry Department, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Sadaf Rezaei
- DDS, Postgraduate Student of Operative Dentistry, Operative Dentistry Department, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Geng Vivanco R, Cardoso RS, Sousa ABS, Chinelatti MA, Vincenti SADF, Tonani-Torrieri R, Pires-de-Souza FDCP. Effect of thermo-mechanical cycling and chlorhexidine on the bond strength of universal adhesive system to dentin. Heliyon 2020; 6:e03871. [PMID: 32373750 PMCID: PMC7191587 DOI: 10.1016/j.heliyon.2020.e03871] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 04/02/2020] [Accepted: 04/23/2020] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES This study evaluated the influence of thermo-mechanical cycling (TMC) on the bond strength (BS) of a universal adhesive system (UAS - Adper Single Bond Universal, 3M ESPE) to dentin treated or not with 0.2% chlorhexidine (CHX). METHODS Eighty human molars were flattened until reach the dentin and separated into 4 groups according to the bonding protocol: ENR Group: 37% phosphoric acid + 3-step etch-and-rinse adhesive system (ENR); UAS Group: UAS in self-etch mode; ENR + CHX Group: 37% phosphoric acid + CHX + ENR; UAS + CHX Group: CHX + UAS in self-etch mode. After treatments, teeth were restored (Filtek Z350, 3M ESPE). Samples (n = 10) were submitted to aging process: stored in distilled water at 37°C/30 days or TMC (ERIOS - 98N/1.6Hz + thermal cycling 5/37/55 °C - 1,200,000 cycles). Specimens were sectioned into sticks (1.0 mm2) and submitted to the microtensile test (Mechanical Test Machine - 0.5 mm/min). Fracture patterns and hybrid layer integrity were analyzed under Stereomicroscope and Scanning Electron Microscopy (SEM). RESULTS The BS results (3-way ANOVA, Bonferroni's test, α = 5%) showed that groups treated with CHX presented higher BS values than control groups; significant in all cases (p < .05), except for ENR submitted to TMC (p > .05). When CHX was applied and samples were cycled, UAS revealed higher BS (p < .05) than ENR. After TMC, cohesive fractures increased for UAS, regardless of CHX application. SEM analysis demonstrated different hybridization patterns for the adhesive systems tested. CONCLUSION The performance of the universal adhesive system used in self-etch mode was better than that of the 3-step etch-and-rinse adhesive system. CLINICAL SIGNIFICANCE Universal adhesive systems have been developed in order to simplify the dentin hybridization protocol. It is important to determine the longevity of the adhesive interface using these bonding materials after chewing.
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Affiliation(s)
- Rocio Geng Vivanco
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Av do Café s/n, 14040-904, Ribeirão Preto, SP, Brazil
| | - Renata Silva Cardoso
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Av do Café s/n, 14040-904, Ribeirão Preto, SP, Brazil
| | - Ana Beatriz Silva Sousa
- School of Dentistry, University of Ribeirão Preto, Av Costábile Romano, 2.201, 14096-900, Ribeirão Preto, SP, Brazil
| | - Michelle Alexandra Chinelatti
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Av do Café s/n, 14040-904, Ribeirão Preto, SP, Brazil
| | - Sergio Augusto de Freitas Vincenti
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Av do Café s/n, 14040-904, Ribeirão Preto, SP, Brazil
| | - Rafaella Tonani-Torrieri
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Av do Café s/n, 14040-904, Ribeirão Preto, SP, Brazil
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Kassem IA, Farrag IE, Zidan SM, ElGuindy JF, Elbasty RS. Marginal gap and fracture resistance of CAD/CAM ceramill COMP and cerasmart endocrowns for restoring endodontically treated molars bonded with two adhesive protocols: an in vitro study. Biomater Investig Dent 2020; 7:50-60. [PMID: 32195460 PMCID: PMC7054925 DOI: 10.1080/26415275.2020.1728277] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/31/2020] [Indexed: 11/15/2022] Open
Abstract
Endocrowns represent a conservative and esthetic restorative alternative to full coverage crowns. They can be constructed using various CAD/CAM materials that can provide a modulus of elasticity similar to that of teeth. The ability to use of such materials in composite blocks that can be easily repaired is also an advantage, provided appropriate bonding performance is ensured. This study, therefore, evaluated the marginal gap and fracture resistance of two CAD/CAM endocrown materials using two bonding protocols. Thirty-two mandibular molars were evaluated in two groups based on the material type: a Cerasmart group (GC America Inc; n = 16) acting as the control and a Ceramill COMP group (Amann Girrbach, Germany; n = 16). These groups were then classified according to the bonding protocol used: a total-etch bonding protocol (n = 8) and a self-etch bonding protocol (n = 8) implemented using RelyX ultimate adhesive resin cement (3M ESPE). The samples were then subjected to aging by simulating a 1-year thermo-mechanical process. The marginal gap results were statistically insignificant across the material and bonding protocol groups before thermo-mechanical aging. Thermo-mechanical aging significantly reduced the marginal gap distance for Ceramill COMP endocrowns cemented using the total-etch protocol (p = 0.002). No statistically significant difference was recorded for the fracture resistance in either the material or bonding protocol groups (p ≥ 0.05). Both materials and bonding protocols can, therefore, be used in the posterior region providing conservative treatment, adequate marginal gap and fracture resistance.
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Affiliation(s)
- Israa Atif Kassem
- Department of Fixed Prosthodontics, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt
| | | | - Samir Mahmoud Zidan
- Department of Fixed Prosthodontics, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt
| | - Jylan Fouad ElGuindy
- Department of Fixed Prosthodontics, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt
| | - Reham Said Elbasty
- Department of Fixed Prosthodontics, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt
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Dentin Bonding and SEM Analysis of a New Experimental Universal Adhesive System Containing a Dendrimer. Polymers (Basel) 2020; 12:polym12020461. [PMID: 32079151 PMCID: PMC7077672 DOI: 10.3390/polym12020461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 12/25/2022] Open
Abstract
Due to their polymerization characteristics, hyper-branched dendrimers have lately shown to be promising candidates for use in dental materials. In this study, a new dental adhesive system was prepared, using a dendrimer derived from 2-isocyanatoethyl methacrylate (G-IEMA), and its adhesive properties were investigated. The exposed dentin was treated with four universal adhesives (UAs): SBU (Scotchbond Universal™), FUT (Futurabond M+™), AE1 (experimental adhesive with Bis-GMA) and AE2 (experimental adhesive with G-IEMA), using Etch & Rinse (ER) or Self Etch (SE) protocols. Composite build-ups were prepared and stored for 24 h at 37 °C in distilled water. Composite/dentin beams were prepared with cross-sectional areas of 1 ± 0.3 mm2 and µTBS (Micro-tensile bond strength) test was performed at 0.5 mm/min. Failures modes were evaluated by stereomicroscopy, and bonding interfaces were observed by scanning electron microscopy (SEM). Statistical analysis of µTBS data was performed using General Linear (GLM) and Linear Mixed Models (LMM). The effect of adhesive type on µTBS was significant (p = 0.010), with AE1 presenting significantly higher µTBS than SBU (p = 0.019). No other differences between adhesives were observed. ER showed significantly better results than SE (p = 0.019), and no significant interactions between the adhesives and protocols were determined. Results obtained so far pinpoint the emergence of a new paradigm in the dental materials field, as G-IEMA can be used successfully as an alternative to Bis-GMA.
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Zhao M, Qu Y, Liu J, Mai S, Gu L. A universal adhesive incorporating antimicrobial peptide nisin: effects on Streptococcus mutans and saliva-derived multispecies biofilms. Odontology 2020; 108:376-385. [PMID: 31912370 DOI: 10.1007/s10266-019-00478-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 11/17/2019] [Indexed: 12/13/2022]
Abstract
For purpose of enhancing the antibacterial activity of a universal adhesive, the antimicrobial peptide nisin was incorporated into Single Bond Universal and its antibacterial effect on Streptococcus mutans monospecific biofilms and saliva-derived multispecies biofilms was studied. Nisin was incorporated into Single Bond Universal and the antibacterial activity was examined by confocal laser scanning microscopy (CLSM), reverse transcription-quantitative polymerase chain reaction (qRT-PCR), phenol-sulfuric acid method and lactate dehydrogenase enzymatic method. The bonding properties were tested by microtensile bond strength (μTBS) and degree of conversion (DC). Data were analyzed by one-way analysis of variance (ANOVA) and least significant difference multiple comparison tests (P < 0.05). The Single Bond Universal incorporated with 3% (w/v) nisin could significantly inhibit the growth of the S. mutans monospecific biofilms (P< 0.01) and decrease the expression of genes related to extracellular polysaccharide (EPS) synthesis (gtfB, gtfC, gtfD and spaP) and acidogenicity (ldh) (P < 0.05). 3% (w/v) nisin-incorporated Single Bond Universal could also inhibit the growth of saliva-derived multispecies biofilms and decrease the excretion of EPS and lactic acid ( P< 0.05). μTBS and DC of 3% (w/v) nisin-incorporated Single Bond Universal did not deteriorate obviously (P > 0.05). In conclusion, 3% (w/v) nisin-incorporated Single Bond Universal substantially inhibited the growth of both S. mutans monospecific and saliva-derived multispecies biofilms without compromising the bonding properties.
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Affiliation(s)
- Manduo Zhao
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Yuexiu District, Guangzhou, Guangdong Province, China
| | - Yang Qu
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Yuexiu District, Guangzhou, Guangdong Province, China
| | - Jia Liu
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Yuexiu District, Guangzhou, Guangdong Province, China
| | - Sui Mai
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Yuexiu District, Guangzhou, Guangdong Province, China.
| | - Lisha Gu
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuanxi Road, Yuexiu District, Guangzhou, Guangdong Province, China.
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Damasceno JE, Pedreira PM, Bueno TO, Pallone MV, Fava TE, Marchi GM. Conservative Esthetic Approach of Anterior Teeth Using Minimal Intervention and Preservation of all Sound Tooth Tissue: a Case Report. JOURNAL OF HEALTH SCIENCES 2019. [DOI: 10.17921/2447-8938.2019v21n5p489-493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
AbstractThis clinical case report describes a conservative approach to a smile harmony rehabilitation performing a gingivoplasty, dental bleaching and resin-based composites to finalize the case. This clinical article describes the case report of a patient in need of an esthetic and corrective solution for the anterior teeth, which presented a disharmonic smile, in its shape and color, besides the gingival smile. As a result, gingivoplasty, dental bleaching and restoration with composite resin were done. Gingivoplasty with bone preservation was possible because there was a large volume of soft tissue, and a distance ≥ 2 mm from the bone crest to the junction cementum enamel was confirmed. Bleaching was performed with the use of associated techniques: office (Whiteness HP 35%) and supervised at-home (Whiteness Perfect 10%) bleaching were performed, and then the "buccolingual technique" using a nanocomposite resin IPS was used from a diagnostic wax-up to perform the restorative procedure for the anterior teeth. The use of minimally invasive techniques is an effective alternative for the anterior teeth rehabilitation. As in this case, the gingivoplasty, dental bleaching with associated techniques, and restorations with nanocomposites allowed satisfactory esthetic results, even more so in relation to dental preservation, mainly in young patients. Keywords: Tooth Bleaching. Gingivoplasty. Esthetic. Dental RestorationAbstractThis clinical case report describes a conservative approach to a smile harmony rehabilitation performing a gingivoplasty, dental bleaching and resin-based composites to finalize the case. This clinical article describes the case report of a patient in need of an esthetic and corrective solution for the anterior teeth, which presented a disharmonic smile, in its shape and color, besides the gingival smile. As a result, gingivoplasty, dental bleaching and restoration with composite resin were done. Gingivoplasty with bone preservation was possible because there was a large volume of soft tissue, and a distance ≥ 2 mm from the bone crest to the junction cementum enamel was confirmed. Bleaching was performed with the use of associated techniques: office (Whiteness HP 35%) and supervised at-home (Whiteness Perfect 10%) bleaching were performed, and then the "buccolingual technique" using a nanocomposite resin IPS was used from a diagnostic wax-up to perform the restorative procedure for the anterior teeth. The use of minimally invasive techniques is an effective alternative for the anterior teeth rehabilitation. As in this case, the gingivoplasty, dental bleaching with associated techniques, and restorations with nanocomposites allowed satisfactory esthetic results, even more so in relation to dental preservation, mainly in young patients. Keywords: Tooth Bleaching. Gingivoplasty. Esthetic. Dental Restoration
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Damasceno JE, Rodrigues FV, Dias LM, Shibasaki PAN, Lima MJP, De Araújo RPC, Foxton RM, Cavalcanti AN. Effect of Dental Erosion and Methods for its Control on the Marginal and Internal Adaptation of Restorations with Different Adhesive Systems. JOURNAL OF HEALTH SCIENCES 2019. [DOI: 10.17921/2447-8938.2019v21n5p437-444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
AbstractThe dentin exposed to erosive challenges is often superficially protected to prevent progression of the lesion. This study investigated the marginal and internal adaptation of composite resin restorations made on surfaces that had first been treated with different methods for controlling erosion. Cavities with margins in dentin were prepared in bovine incisors (n=360) and were divided into three groups according to the method for controlling the erosive challenge: negative control, topical application of fluoride and resin-modified glass ionomer varnish. The specimens were then randomly divided into three sub-groups according to the exposure to simulated gastric acid solution (DES) (5% HCl, pH=2.2) and subsequent remineralization (RE): negative control, 9 and 18 cycles of DES-RE. Finally, teeth were divided into four groups, depending on the bonding agent used for composite resin restoration (n=10): conventional etch-and-rinse adhesive system (2 and 3 steps) and self-etching (1 and 2 steps). Front and internal images of the interface tooth/restoration were recorded in stereoscopic microscope (15x) to quantify the percentage of adhesive failures. Despite the promising results of the resin-modified glass ionomer varnish after 9 cycles; no protective material prevented increased internal defects after 18 erosive cycles. More continuous internal margins were noted with etch-and-rinse acid systems after more intense erosion. The maintenance of internal margins in eroded substrates was positively influenced by the resin-modified glass ionomer varnish and, under the most aggressive challenge, by the use of etch-and-rinse adhesives systems. Keywords: Tooth Erosion. Dentin. Acid Gastric. ResumoA dentina exposta a desafios erosivos é muitas vezes superficialmente protegida para prevenir a progressão da lesão. Este estudo investigou a adaptação marginal e interna de restaurações de resina composta realizadas em superfícies que foram previamente tratadas com diferentes métodos para controlar a erosão. Cavidades com margens em dentina foram preparadas em dentes incisivos bovinos (n=360) e divididas em três grupos de acordo com o método de controle do desafio erosivo: controle negativo, aplicação tópica de flúor e verniz de ionômero de vidro modificado por resina. Os espécimes foram então divididos aleatoriamente em três subgrupos de acordo com a exposição à solução de ácido gástrico simulada (DES) (HCl a 5%, pH = 2,2) e posterior remineralização (RE): controle negativo, 9 e 18 ciclos de DES-RE. Por fim, os dentes foram divididos em quatro grupos, de acordo com o agente de união utilizado para a restauração da resina composta (n=10): sistema adesivo convencional (2 e 3 passos) e autocondicionante (1 e 2 passos). Imagens frontais e internas da interface dente/restauração foram registradas em microscópio estereoscópico (15x) para quantificar a porcentagem de falhas adesivas. Apesar dos resultados promissores do verniz de ionômero de vidro modificado por resina após 9 ciclos; nenhum material de proteção impediu o aumento de defeitos internos após 18 ciclos erosivos. Margens internas mais contínuas foram observadas com sistemas adesivos convencionais após erosão mais intensa. A manutenção das margens internas em substratos erodidos foi influenciada positivamente pelo verniz de ionômero de vidro modificado por resina e, sob o desafio mais agressivo, pelo uso de sistemas de adesivos convencionais. Palavras-chave: Erosão Dentária. Dentina. Ácido Gástrico.
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Cardenas AFM, Armas-Veja A, Rodriguez Villarreal JP, Siqueira FSFD, Muniz LP, Campos VS, Reis A, Loguercio AD. Influence of the mode of application of universal adhesive systems on adhesive properties to fluorotic enamel. Braz Oral Res 2019; 33:e120. [PMID: 31778475 DOI: 10.1590/1807-3107bor-2019.vol33.0120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 08/20/2019] [Indexed: 11/21/2022] Open
Abstract
The objective of this study is to compare the resin-enamel bond strength (mμSBS), in-situ degree of conversion (DC), and the enamel-etching pattern (SEM/EDX) of universal adhesive systems when applied to sound and fluorotic enamel. Ninety-eight human molars were sectioned into 4 parts and divided into 24 groups according to 1) enamel surface (sound or fluorotic enamel), 2) adhesive system (Clearfil Universal Bond [CUB], Futurabond U [FBU], iBond Universal [IBU], and Scotchbond Universal [SBU]), and 3) application mode (etch-and-rinse [ER], active self-etch [Active-SE], and passive self-etch [Passive-SE]). Specimens were stored at 37 °C, for 24 hours and tested at 1.0 mm/min (μSBS). Enamel-resin interfaces were evaluated for in-situ DC. The enamel-etching pattern was evaluated under a SEM/EDX. Data from mμSBS and in-situ DC was analyzed using a three-way ANOVA and Tukey's test at 5 % level of significance. For all adhesives, the ER resulted in a statistically significant higher mean mμSBS than the passive-SE in both substrates (p < 0.001). For all adhesives, active-SE resulted in mean mμSBS (p > 0.31) and in-situ DC (p > 0.45) that were statistically similar to those obtained with the ERs in both substrates. A statistically significant, higher mean mμSBS and in-situ DC were obtained in sound enamel (p < 0.001) than in fluorotic enamel. In general, SBU showed higher mean values for mμSBS and in-situ DC compared to those of CUB and IBU (p < 0.001). ER and active-SE showed the deepest enamel-etching pattern in both substrates. A higher amount of fluor was observed in fluorotic enamel. The active application of universal adhesives in the SE-mode may be a viable alternative to increase the adhesive properties in sound and fluorotic enamel.
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Affiliation(s)
| | - Ana Armas-Veja
- Universidad Tecnológica Equinoccial - UTE, Facultad de Ciencias de la Salud Eugenio Espejo, Quito, Ecuador
| | | | | | - Luana Paraiso Muniz
- Universidade CEUMA, Department of Postgraduate Program in Dentistry, São Luis, Maranhão, Brazil
| | - Veridiana Silva Campos
- Universidade Estadual de Ponta Grossa - UEPG, Department of Restorative Dentistry, Uvaranas, PR, Brazil
| | - Alessandra Reis
- Universidade Estadual de Ponta Grossa - UEPG, Department of Restorative Dentistry, Uvaranas, PR, Brazil
| | - Alessandro Dourado Loguercio
- Universidad Tecnológica Equinoccial - UTE, Facultad de Ciencias de la Salud Eugenio Espejo, Quito, Ecuador.,Universidade Estadual de Ponta Grossa - UEPG, Department of Restorative Dentistry, Uvaranas, PR, Brazil
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Cortopassi LS, Shimokawa CAK, Willers AE, Sobral MAP. Surface roughness and color stability of surface sealants and adhesive systems applied over a resin‐based composite. J ESTHET RESTOR DENT 2019; 32:64-72. [DOI: 10.1111/jerd.12548] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/26/2019] [Accepted: 10/24/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Lucas S. Cortopassi
- Department of Restorative DentistrySchool of Dentistry, University of São Paulo São Paulo São Paulo Brazil
| | - Carlos A. K. Shimokawa
- Department of Restorative DentistrySchool of Dentistry, University of São Paulo São Paulo São Paulo Brazil
| | - Amanda E. Willers
- Department of Restorative DentistryPiracicaba Dental School, University of Campinas Campinas São Paulo Brazil
| | - Maria A. P. Sobral
- Department of Restorative DentistrySchool of Dentistry, University of São Paulo São Paulo São Paulo Brazil
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Manarte-Monteiro P, Domingues J, Teixeira L, Gavinha S, Manso MC. Multi-Mode adhesives performance and success/retention rates in NCCLs restorations: randomised clinical trial one-year report. Biomater Investig Dent 2019; 6:43-53. [PMID: 31998871 PMCID: PMC6964776 DOI: 10.1080/26415275.2019.1684199] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 09/23/2019] [Indexed: 11/24/2022] Open
Abstract
Aim: Compare clinical performance and success/retention rates of two multi-mode (MM) adhesives, applied in self-etch (SE) or etch-and-rinse (ER) modes, with SE-all-in-one adhesive (SE/SE with enamel etching) in NCCL restorations at one-year follow-up. Material and methods: Prospective, double-blind RCT approved by the University Fernando Pessoa and the National-Clinical-Research-Ethics Committees (CEIC-20150305), ClinicalTrials.gov registered (NCT02698371), in 38 participants with 210 restorations (AdmiraFusion®) randomly allocated to six groups (Adhesives_Adhesion mode), each with 35 restorations: G1-Control Futurabond®DC_SE; G2-Control Futurabond®DC_SE with enamel etching; G3-Futurabond®U_ER; G4-Futurabond®U_SE; G5-Adhese®Universal_ER; G6-Adhese®Universal_SE. Restorations evaluated at baseline and one-year by three calibrated examiners (ICC ≥0.952) using FDI criteria and statistical analysis with nonparametric tests (alpha = 0.05). Results: At one-year recall 36 participants, 199 restorations were available for examination; five (2.5%) restorations (G1 n = 2; G2, G3, G4 n = 1) were lost due to retention (p > .05); G1 showed less satisfying marginal adaptation (p < .05) than G2 and MM adhesives groups, particularly G6. Overall success rates (p > .05) were: 93.9% (G1), 97.0% (G2; G3; G4) and 100.0% (G5; G6). Conclusions: MM adhesives (Futurabond®U and Adhese®Universal) showed similar and acceptable performance/success rates but also better clinical outputs than the SE-all-in-one adhesive (Futurabond®DC), particularly in SE mode. Success and retention rates were similar and not dependent on materials or adhesion modes.
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Affiliation(s)
- Patrícia Manarte-Monteiro
- Department of Medical Sciences, Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
| | - Joana Domingues
- Department of Medical Sciences, Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
| | - Liliana Teixeira
- Department of Medical Sciences, Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
| | - Sandra Gavinha
- Department of Medical Sciences, Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
| | - Maria Conceição Manso
- Biostatistics, Faculty of Health Sciences, UFP Energy, Environment and Health Research Unit (FP-ENAS), University Fernando Pessoa, Porto, Portugal
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75
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Clinical and OCT outcomes of a universal adhesive in a randomized clinical trial after 12 months. J Dent 2019; 90:103200. [DOI: 10.1016/j.jdent.2019.103200] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/21/2019] [Accepted: 09/21/2019] [Indexed: 02/06/2023] Open
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18-month clinical evaluation of a copper-containing universal adhesive in non-carious cervical lesions: A double-blind, randomized controlled trial. J Dent 2019; 90:103219. [PMID: 31629030 DOI: 10.1016/j.jdent.2019.103219] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 09/19/2019] [Accepted: 10/15/2019] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE This study aimed to evaluate the addition of copper nanoparticles (CuNp) on the clinical performance of a universal adhesive system used as etch-and-rinse (ER) and self-etch (SE). METHODS 216 restorations were randomly placed in 36 subjects according to the following groups: ERcu = etch-and-rinse with 0.1% CuNp; ERct = etch-and-rinse without CuNp; SEcu = self-etch with 0.1% CuNp; SEct = self-etch without CuNp. Resin composite was placed incrementally and light-cured. The restorations were evaluated at baseline and 6, 12 and 18 months using the FDI and USPHS criteria. Statistical analyses were performed using appropriate tests (α = 0.05). RESULTS The addition of CuNp did not increase the clinical performance (FDI / USPHS) of the universal adhesive tested after 18-month when applied in the ER mode (p > 0.05). The addition of CuNp in SE restorations increased the retention rate significantly and decreased the marginal discrepancies after 18 months (p < 0.05). CONCLUSION The clinical performance of universal adhesive was significantly increased when applied in the SE mode with the addition of copper nanoparticles. CLINICAL RELEVANCE This is the first study that demonstrates a slight improvement in the clinical performance of universal adhesive systems in non-carious cervical lesions when added CuNp in lower concentration.
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Balkaya H, Arslan S, Pala K. A randomized, prospective clinical study evaluating effectiveness of a bulk-fill composite resin, a conventional composite resin and a reinforced glass ionomer in Class II cavities: one-year results. J Appl Oral Sci 2019; 27:e20180678. [PMID: 31596369 PMCID: PMC6768121 DOI: 10.1590/1678-7757-2018-0678] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 05/06/2019] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES Bulk-fill restorative materials such as bulk-fill composite resins and high viscous glass ionomer cements have become very popular materials in operative dentistry because their application is easy and time-saving. The aim of this clinical study was to evaluate the clinical performance of a highly viscous reinforced glass ionomer material, a bulk-fill composite resin and a micro hybrid composite resin in Class II restorations. METHODOLOGY In total, 109 Class II restorations were performed in 54 patients using three different restorative materials: Charisma Smart Composite (CSC); Filtek Bulk Fill Posterior Restorative (FBF); Equia Forte Fil (EF). Single Bond Universal adhesive (3M ESPE, Germany) was used with composite resin restorations. The restorations were evaluated using modified USPHS criteria in terms of retention, color match, marginal discoloration, anatomic form, contact point, marginal adaptation, secondary caries, postoperative sensitivity and surface texture. The data were analyzed using Chi-Square, Fischer's and McNemar's tests. RESULTS At the end of one year, 103 restorations were followed up. No changes were observed during the first 6 months. At the end of one year, there were small changes in composite restorations (FBF and CSC) but no statistically significant difference was observed between the clinical performances of these materials for all criteria (p>0.05). However, there was a statistically significant difference between EF, FBF and CSC groups in all parameters except marginal discoloration, secondary caries and postoperative sensitivity in one-year evaluation (p<0.05). CONCLUSION Bulk-fill composite resins and conventional composite resins showed more successful clinical performance than highly viscous reinforced glass ionomers in Class II cavities.
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Affiliation(s)
- Hacer Balkaya
- Erciyes University, Faculty of Dentistry, Department of Restorative Dentistry, Kayseri, Turkey
| | - Soley Arslan
- Erciyes University, Faculty of Dentistry, Department of Restorative Dentistry, Kayseri, Turkey
| | - Kanşad Pala
- Erciyes University, Faculty of Dentistry, Department of Restorative Dentistry, Kayseri, Turkey
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Hass V, Cardenas AFM, Siqueira FSF, Pacheco RR, Zago PMW, Silva DO, Bandeca MC, Loguercio AD. Bonding Performance of Universal Adhesive Systems Applied in Etch-and-Rinse and Self-Etch Strategies on Natural Dentin Caries. Oper Dent 2019; 44:510-520. [DOI: 10.2341/17-252-l] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
Objective:
This study investigated the bonding performance of three universal adhesive systems applied using etch-and-rinse (ER) or self-etch (SE) strategies on natural dentin caries.
Materials and Methods:
Sixty human third molars were selected for this study: 30 naturally carious (CAD) and 30 sound (SD) teeth. The dentin surfaces were exposed, and teeth were randomly assigned to each evaluated adhesive system: Scotchbond Universal (SBU), Futurabond U (FBU), and Prime&Bond Elect (PBE) and an adhesive strategy: ER or SE. The adhesive systems were applied following the manufacturer's instructions, and the teeth were restored using a resin composite (Filtek Supreme Ultra, 3M). After 24 hours (distilled water at 37°C), samples were sectioned and evaluated using microtensile bond strength analysis (μTBS), micro-Raman spectroscopy to evaluate the degree of conversion within the hybrid layer (DC), and scanning electronic microscopy (SEM) to describe the morphology of the hybrid layer. The μTBS and DC data were analyzed using three-way analysis of variance and Tukey's test for means comparison (α=0.05). The SEM images were analyzed qualitatively.
Results:
Reduced μTBS values were observed when comparing CAD with SD, regardless of adhesive system or strategy (p<0.0001). SBU showed statistically higher μTBS for both dentin substrates and strategies (p<0.0001). Furthermore, SBU showed greater integrity of the hybrid layer and resin tag formation compared with FBU and PBE. Mean μTBS values for FBU were higher for SD in the SE mode, whereas higher mean μTBS values were observed for CAD in the ER mode, both compared with PBE (p<0.001).
Conclusion:
Bonding performance is reduced on a caries-affected substrate. The ER strategy was not able to improve the bonding performance on natural CAD for universal adhesive systems. Improved bonding performance was obtained when using the Scotchbond Universal system.
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Affiliation(s)
- V Hass
- Viviane Hass, University North Parana, Post-Graduate Program in Dentistry, Londrina, Paraná, Brazil
| | - AFM Cardenas
- Andres Felipe Millan Cardenas, Department of Restorative Dentistry, School of Dentistry, CEUMA University, São Luís, Maranhão, Brazil
| | - FSF Siqueira
- Fabiana Suelen Figuerêdo de Siqueira, Department of Restorative Dentistry, School of Dentistry, CEUMA University, São Luís, Maranhão, Brazil
| | - RR Pacheco
- Rafael R Pacheco, Department of Restorative Dentistry, University of Detroit Mercy, Detroit, MI, USA
| | - PMW Zago
- Patricia Maria Wiziack Zago, School of Dentistry, CEUMA University, São Luís, Maranhão, Brazil
| | - DO Silva
- Daniella Oliveira Silva, Post-Graduate Program in Dentistry, University Ceuma, São Luís, Brazil
| | - MC Bandeca
- Matheus C Bandeca, Department of Dentistry, CEUMA University, São Luís, Maranhão, Brazil
| | - AD Loguercio
- Alessandro D Loguercio, Restorative Dentistry, Ponta Grossa State University, Uvaranas, Ponta Grossa, Brazil
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79
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Zanatta RF, Silva TM, Esper MALR, Bresciani E, Gonçalves SEP, Caneppele TMF. Bonding Performance of Simplified Adhesive Systems in Noncarious Cervical Lesions at 2-year Follow-up: A Double-blind Randomized Clinical Trial. Oper Dent 2019; 44:476-487. [DOI: 10.2341/18-049-c] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
Objectives:
This study aimed to evaluate the bonding performance of a universal adhesive used according to self-etching or etch-and-rinse protocols in noncarious cervical lesions (NCCLs) and to compare the two protocols with their respective gold standard techniques.
Methods and Materials:
This randomized, double-blind clinical study enrolled 34 participants who met the inclusion criteria, 29 of whom returned after two years. They received 152 restorations bonded with one of the three adhesives (Scotchbond Universal Adhesive, Adper Single Bond 2, or Clearfil SE Bond) and one of the two bonding techniques tested. The NCCLs were restored with nanocomposite resin (Filtek Supreme). Final contours were done with a fine diamond rotary instrument and polished with rubber points. The restorations were evaluated using the FDI World Dental Federation criteria at baseline (seven days after the restoration procedure), 6, 12, and 24 months. Descriptive statistics, Kruskal-Wallis, Friedman analysis of variance, and least significant difference tests were performed.
Results:
No statistically significant differences were found in esthetics or the functional and biological evaluated criteria among the adhesive systems and techniques.
Conclusions:
The Scotchbond Universal system behaved similarly to the conventional etch-and-rinse or self-etching systems in all the adhesion strategies in the evaluated periods.
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Affiliation(s)
- RF Zanatta
- Rayssa Ferreira Zanatta, DDS, MS, PhD, assistant professor, University of Taubaté - UNITAU, São Paulo, Brazil
| | - TM Silva
- Tania Mara Silva, PhD, Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University – UNESP, São José dos Campos, São Paulo, Brazil
| | - MALR Esper
- Maria Angela LR Esper, DDS, Ms, PhD, Department of Restorative Dentisry, Institute of Science and Technology, São Paulo State University - UNESP, São José dos Campos, São Paulo, Brazil
| | - E Bresciani
- Eduardo Bresciani, DDS, MSc, PhD, associate professor, Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University – UNESP, São José dos Campos, São Paulo, Brazil
| | - SEP Gonçalves
- Sergio EP Gonçalves, DDS, MSc, PhD, professor, Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University – UNESP, São José dos Campos, São Paulo, Brazil
| | - TMF Caneppele
- Taciana M F Caneppele, PhD, Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University – UNESP, São José dos Campos, São Paulo, Brazil
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Ertürk Avunduk AT, Bağlar S. Evaluation of microleakage in class v cavities prepared by different caries removal methods. Microsc Res Tech 2019; 82:1566-1574. [PMID: 31199544 DOI: 10.1002/jemt.23322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 04/19/2019] [Accepted: 05/29/2019] [Indexed: 11/08/2022]
Abstract
The purpose of this study was to comparatively evaluate the effects of different caries removal methods on microleakage success of class V adhesive restorations by means of light microscopy (stereomicroscope) and scanning electron microscopy (SEM) observations. Sixty-four human teeth with class V caries that measured with DIAGNOdent were used. The samples were divided into four groups (n = 16) randomly according to caries removing methods of conventional method, Carisolv, Papacarie, and Er,Cr:YSGG laser system. The self-etch Clearfıl SE Bond and Clearfıl Majesty Es-II were used as restoration materials. After thermal cycles of 2,000 (5 and 55°C) samples were immersed in a 50% wt/wt AgNO3. Samples were finally imaged and scored under light microscopy and SEM, respectively. The data were statistically analyzed using Kruskal-Wallis H, pairwise comparison and Wilcoxon's T tests at 5% significance level (p < .05). Statistical analysis demonstrated that there was no significant difference between microleakage scores in dentin regions but there were significant difference between the Papacarie and Er,Cr:YSGGlaser in terms of leakage scores in enamel sites. No statistically significant difference in leakage scores emerged between light microscopy and SEM.
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Affiliation(s)
- Ayşe T Ertürk Avunduk
- Faculty of Dentistry, Department of Restorative Dentistry, Mersin University, Mersin, Turkey
| | - Serdar Bağlar
- Faculty of Dentistry, Department of Restorative Dentistry, Kırıkkale University, Kırıkkale, Turkey
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81
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Thirty-six-month clinical evaluation of different adhesive strategies of a universal adhesive. Clin Oral Investig 2019; 24:1569-1578. [DOI: 10.1007/s00784-019-03052-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 08/05/2019] [Indexed: 12/14/2022]
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Abdelraouf RM, Mohammed M, Abdelgawad F. Evaluation of Shear-Bond-Strength of Dental Self-Adhering Flowable Resin-Composite versus Total-Etch One to Enamel and Dentin Surfaces: An In-Vitro Study. Open Access Maced J Med Sci 2019; 7:2162-2166. [PMID: 31456846 PMCID: PMC6698122 DOI: 10.3889/oamjms.2019.579] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 07/02/2019] [Accepted: 07/07/2019] [Indexed: 11/05/2022] Open
Abstract
AIM This study aimed to assess the shear bond strength of a self-adhering flowable resin composite versus a total-etch one to different surfaces of permanent-molars. MATERIAL AND METHODS Thirty-six sound human permanent molars were used. The teeth were embedded in acrylic blocks, such that their buccal surfaces were shown. The teeth were divided into three groups: Group I: Uncut-Enamel, Group II: Cut-enamel-surfaces with minimal-grinding and Group III: dentin-surfaces. Half of the teeth in each group were used for bonding to a self-adhering flowable resin-composite (Dyad-flow, Kerr, USA). While the other half of each group was bonded to a total-etch flowable resin-composite (Filtek™Z350-XT,3M-ESPE, USA) which necessitate etching and bonding. Teflon-mold was used for constructing resin composite cylinders (3 × 3 mm) over the buccal surfaces. The Dyad-flow was applied in the central hole of the mould placed upon tooth-surface, and then light-cured for 20 seconds. The Filtek-Z350-XT was applied similarly after etching and bonding steps. The teeth were stored in 37°C distilled water for 24 hours. The strength was measured using a universal testing machine and statistically analysed. Modes of failure were studied using digital-microscope. RESULTS Mean values of shear bond strength for the Dyad and Filtek-Z350-XT in the uncut-enamel were 3.5 and 24.6MPa respectively, while that for cut-enamel were 4.5 and 12.7MPa respectively (Both highly statistically significant P ≤ 0.01) and in dentin were 4.3 and 6.7MPa respectively (Statistically significant P ≤ 0.05). The failure mode for Dyad was mainly adhesive (un-cut or cut-enamel 83.3% adhesive and 16.7% mixed, while in dentin 100% adhesive). While the modes of failure for Filtek-Z350-XT in enamel, either cut or un-cut, were 50% cohesive and 50% mixed, whereas in dentin 100% adhesive. CONCLUSION Bonding of self-etch ″Dyad-flow″ flowable resin-composite was lower than the total-etch one in enamel and dentin. Thus further material improvement may be required.
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Affiliation(s)
- Rasha M Abdelraouf
- Biomaterials Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Manar Mohammed
- Department of Pediatric and Community Dentistry, Faculty of Oral and Dental Medicine, October 6 University, Cairo, Egypt
| | - Fatma Abdelgawad
- Department of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry, Cairo University, Cairo, Egypt
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Aung SSMP, Takagaki T, Ko AK, Halabi S, Sato T, Ikeda M, Nikaido T, Burrow MF, Tagami J. Adhesion durability of dual-cure resin cements and acid–base resistant zone formation on human dentin. Dent Mater 2019; 35:945-952. [DOI: 10.1016/j.dental.2019.02.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 02/13/2019] [Indexed: 12/01/2022]
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84
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Giacomini C, Maurina R, Tomazoni F, Bellan MC, Alessandretti R, Galafassi D. Resistência da união de restaurações confeccionadas com sistemas adesivos universais em dentes acometidos por erosão ácida. JOURNAL OF ORAL INVESTIGATIONS 2019. [DOI: 10.18256/2238-510x.2019.v8i1.3067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Objetivos: Avaliar a resistência adesiva de diferentes sistemas adesivos universais em esmalte e dentina erodidos. Métodos: As unidades experimentais foram compostas por 30 fragmentos de esmalte bovino e 30 fragmentos de dentina bovina divididos aleatoriamente em três grupos experimentais de acordo com os sistemas adesivos universais utilizados (n = 10): Single Bond Universal (3M ESPE), Peak Universal (Ultradent) e Ambar Universal (FGM). Previamente as restaurações, os fragmentos de esmalte e dentina foram submetidos à desafio erosivo em ácido cítrico a 0,3% (pH = 2,6) durante cinco minutos, quatro vezes por dia por cinco dias. Um cilindro de resina composta (Forma, Ultradent) com 2mm de diâmetro foi construído em cima de cada fragmento. A resistência ao cisalhamento foi avaliada em máquina de ensaio universal (1mm/min). Os valores obtidos de resistência da união (MPa) foram analisados por ANOVA dois fatores e teste de Bonferroni (α=0,05). Resultados: Não houve diferença significativa entre os sistemas adesivos testados no mesmo substrato. O esmalte apresentou maiores valores de resistência da união que a dentina. Houve predomínio da falha coesiva em resina no esmalte e falha adesiva na dentina. Conclusão: Os sistemas adesivos universais testados apresentaram resistência adesiva semelhantes entre si dentro do mesmo substrato erodido.
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Dönmez N, Güngör AS, Karabulut B, Siso ŞH. Comparison of the micro-tensile bond strengths of four different universal adhesives to caries-affected dentin after ER:YAG laser irradiation. Dent Mater J 2019; 38:218-225. [PMID: 30504693 DOI: 10.4012/dmj.2017-428] [Citation(s) in RCA: 2] [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 micro-tensile bond strengths (micro-TBSs) of four universal adhesive systems, applied in two different bonding techniques, to carries-affected dentin after Er:YAG laser irradiation were investigated. Twenty-four extracted human molars were divided into four groups, according to the adhesive systems used. Each group was subdivided into two subgroups, depending on the bonding method used: the etch-and-rinse procedure or self-etch procedure. The carious lesions were irradiated using an Er:YAG laser. Resin composites were used to restore the adhesive-treated dentin surfaces. After 2,500 thermal cycles, the vertical composite resin-dentin sticks obtained were subjected to micro-TBS tests. One tooth in each group was examined using scanning electron microscopy (SEM). There were statistically significant differences (p<0.001) in micro-TBS values between universal adhesives. The results of this study suggested that universal adhesives applied both with self and total etch technique can be used for adhesive restorations to caries-affected dentin after Er:YAG laser irradiation. If lasers are preferred as a caries removal method, choosing a dentin bonding agent containing MDP may be recommended in clinical practice due to the property of increasing the bonding strength.
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Affiliation(s)
- Nazmiye Dönmez
- Department of Restorative Dentistry, Faculty of Dentistry, Bezmialem Vakif University
| | | | - Barış Karabulut
- Department of Pedodontics, Faculty of Dentistry , Sağlık Bilimleri University
| | - Şeyda Hergüner Siso
- Department of Restorative Dentistry, Faculty of Dentistry, Istanbul Aydın University
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Cengiz T, Ünal M. Comparison of microtensile bond strength and resin-dentin interfaces of two self-adhesive flowable composite resins by using different universal adhesives: Scanning electron microscope study. Microsc Res Tech 2019; 82:1032-1040. [PMID: 30866096 DOI: 10.1002/jemt.23250] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/04/2019] [Accepted: 02/20/2019] [Indexed: 11/08/2022]
Abstract
The aim of this in-vitro study was to evaluate microtensile bond strength (μTBS) of two different self-adhesive composites (SACs) on the permanent dentin by applying five different universal adhesive systems. In this study, two different SACs [Vertise Flow (VF), Fusio Liquid Dentin (FLD)] and five different bonding systems [Clearfil Universal Bond Quick (CUB), Single Bond Universal (SBU), All Bond Universal (ABU), Prime Bond Universal (PBU), Futurabond U (FBU)] were used. A total of 22 groups were created in which SACs were applied without adhesive and with five different universal bonding agents in total-etch (TE) and self-etch (SE) modes. Two hundred and forty test sticks were obtained using 48 healthy human molar teeth in total with groups having 10 samples each. The μTBS test was applied to each sample in the Universal test device and the data obtained were analyzed statistically by variance analysis and Tukey HSD test. In addition, the resin-dentin interface and fractures modes in the groups were examined by SEM. Upon examining the μTBS results, the highest values were seen in the use of SBU adhesive in TE mode in VF group, while the lowest values were seen in the FLD control group. The difference between the control and experimental groups was found statistically significant (p < .05). Upon comparing the control groups with each other, it was seen that VF group had higher μTBS values than FLD group and the difference between the groups was found statistically significant (p < .05). The μTBS results and SEM images of the study showed that the use of SACs with universal adhesive systems provides a more effective bond strength.
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Affiliation(s)
- Tuba Cengiz
- Department of Pediatric Dentistry, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey
| | - Murat Ünal
- Department of Pediatric Dentistry, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey
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87
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Jang JH, Jeon BK, Mo SY, Park M, Choi D, Choi KK, Kim DS. Effect of various agitation methods on adhesive layer formation of HEMA-free universal dentin adhesive. Dent Mater J 2019; 38:101-106. [PMID: 30381633 DOI: 10.4012/dmj.2018-031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study evaluates the effects of various agitation methods on the adhesive layer formation of a new HEMA-free universal dentin adhesive. The µTBS of the universal adhesive, G-Premio BOND in the self-etch mode was evaluated using three agitation methods [passive agitation (PA), active agitation (AA), ultrasonic agitation (UA)], with and without aging treatment. Two-way analysis of variance revealed that aging treatment was not a statistically significant factor. Tukey's HSD test showed significant differences based on the application method, UA>AA>PA. TEM images of the PA group revealed multiple water blisters in the adhesive layers; AA and UA groups presented significantly less or no blisters within the adhesive layers; thus, AA and UA groups exhibited better bonding performance for the HEMA-free universal adhesive. It is assumed that the entrap ped blisters can be reduced with the active application of dentin adhesive, and thus improving the bonding performance.
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Affiliation(s)
- Ji-Hyun Jang
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University
| | - Bong-Ki Jeon
- Department of Conservative Dentistry, Graduate School, Kyung Hee University
| | - So Yeon Mo
- Department of Conservative Dentistry, Graduate School, Kyung Hee University
| | - Minjoo Park
- Department of Conservative Dentistry, Graduate School, Kyung Hee University
| | - Dongseok Choi
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University.,Division of Biostatistics, Oregon Health and Science University-Portland State University of Public Health, Oregon Health and Science University
| | - Kyoung-Kyu Choi
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University
| | - Duck-Su Kim
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University
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88
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Bakaus TE, Gruber YL, Reis A, Gomes JC, Gomes GM. Bonding properties of universal adhesives to root canals prepared with different rotary instruments. J Prosthet Dent 2019; 121:298-305. [DOI: 10.1016/j.prosdent.2018.02.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 02/10/2018] [Accepted: 02/12/2018] [Indexed: 11/30/2022]
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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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SCHOENHALS GDP, BERFT CL, NAUFEL FS, SCHMITT VL, CHAVES LP. Bond strength assessment of a universal adhesive system in etch-and-rinse and self-etch modes. REVISTA DE ODONTOLOGIA DA UNESP 2019. [DOI: 10.1590/1807-2577.08319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract Introduction Modern dentistry is reflected in the insertion of new materials with different adhesion forms in dental structures, such as the Universal adhesive system. Objective To evaluate the bond strength of the universal dentin adhesive system, in the form of self-etching and conventional application, compared with a simplified conventional adhesive system, in two distinct periods: 1 week and 6 months. Material and method 48 bovine incisors separated into 6 groups, stored for 7 days, were selected. Worn out the buccal enamel until dentin exposure. Adper Single Bond 2 (3M Espe) or SingleBond Universal (3M Espe) adhesives were applied, and catheters filled with Opallis Flow (FGM) composite were placed. After photoactivation, the catheters were removed and the specimens (n = 48), stored in distilled water at 37 °C for one week and six months, were exposed. The specimens were fixed to a universal testing machine (EMIC DL 2000) with a speed of 0.5 mm / min. Bond strength (BS) was calculated in MPa, and data were statistically analyzed by Anova and Tukey test at 5% significance level. Result For Adper Single bond, the BS was equivalent in the times tested; for Universal conventional and self-conditioning time influenced the BS, with a decrease in the results. At 1 week, all stickers were different from each other, with higher BS for Universal conventional mode, followed by universal self-etching mode and then Adper Single bond. Conclusion The best results were achieved with universal adhesive in conventional mode for both tested times.
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İslatice Özkubat G, Yaman BC, Tepe H, Irmak Ö. CLINICAL PERFORMANCE OF A UNIVERSAL ADHESIVE IN NONCARİOUS CERVİCAL LESİONS ACCORDING TO FDI CRITERIA. CUMHURIYET DENTAL JOURNAL 2018. [DOI: 10.7126/cumudj.467923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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92
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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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93
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Pouyanfar H, Tabaii ES, Aghazadeh S, Nobari SPTN, Imani MM. Microtensile Bond Strength of Composite to Enamel Using Universal Adhesive with/without Acid Etching Compared To Etch and Rinse and Self-Etch Bonding Agents. Open Access Maced J Med Sci 2018; 6:2186-2192. [PMID: 30559887 PMCID: PMC6290427 DOI: 10.3889/oamjms.2018.427] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/20/2018] [Accepted: 10/22/2018] [Indexed: 11/13/2022] Open
Abstract
AIM: Considering the recent introduction of universal adhesives and the controversy regarding the use/no use of etchant prior to their application, this study sought to assess the microtensile bond strength of composite to enamel using universal adhesive with/without acid etching compared to three-step etch and rinse, two-step etch and rinse and two-step self-etch bonding agents. METHODS: This in vitro, an experimental study was conducted on 80 extracted sound human molars in five groups (16 each): Scotchbond Universal adhesive (3M) with/without prior etching, Adper Scthe otchbond Multi-Purpose, Single Bond and Clearfil SE Bond. Etching was performed with 37% phosphoric acid for 20 seconds followed by rinsing and drying. The bonding agent was then applied and light-cured. The e-lite composite was bonded to surfaces and light-cured. The teeth were then mounted, sectioned and subjected to microtensile bond strength test in a universal testing machine. The mode of failure was, determined under a stereomicroscope. Data were analysed using one-way ANOVA followed by Tukey’s test. RESULTS: Universal adhesive with prior etching yielded the highest bond strength (P = 0.03). Pairwise comparisons showed that the bond strength of this group was significantly higher than that of universal adhesive without prior etching (P = 0.04). No other significant differences were noted (P > 0.05). The modes of failure were significantly different among the groups (P = 0.003). CONCLUSION: Enamel etching with phosphoric acid can significantly increase the bond strength to universal adhesive. Universal adhesive without prior etching provided the bond strength as high as that provided by etching and rinse and self-etch bonding agents.
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Affiliation(s)
- Hoda Pouyanfar
- Department of Restorative Dentistry, Dental Faculty, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | | | | | - Mohammad Moslem Imani
- Department of Orthodontics, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Papadopoulos C, Dionysopoulos D, Tolidis K, Kouros P, Koliniotou-Koumpia E, Tsitrou EA. Structural Integrity Evaluation of Large MOD Restorations Fabricated With a Bulk-Fill and a CAD/CAM Resin Composite Material. Oper Dent 2018; 44:312-321. [PMID: 30444690 DOI: 10.2341/18-013-l] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS To evaluate the effect of two composite restorative techniques (direct bulk fill vs indirect CAD/CAM) on the fracture resistance and mode of fracture of extended mesio-occlusal-distal (MOD) cavity preparations. METHODS Fifty-one sound human mandibular third molars were divided into three groups (n=17). Extended bucco-lingual MOD cavities were prepared. Teeth in group 1 were restored with a bulk-fill resin composite (Filtek Bulk-Fill Posterior Restorative), teeth in group 2 were restored with composite computer-aided design/computer-aided manufacturing (CAD/CAM) inlays (Lava Ultimate), and teeth in group 3 served as control and remained intact. All specimens were submitted to thermocycling, and a fracture resistance test was performed using a Universal testing machine (0.5 mm/min). Mode of fracture was classified into five types. One-way analysis of variance and the Duncan test were used to analyze the fracture load data at a significance level of α = 0.05. A chi-square test was used for the analysis of fracture mode between the restorative groups. RESULTS Statistical analysis showed significant differences in fracture resistance among the experimental groups. The teeth restored with the bulk-fill composite exhibited lower fracture resistance (1285.3±655.0 N) when compared to the teeth restored with the composite CAD/CAM inlays (1869.8±529.4 N) (p<0.05). Mode of fracture showed the same distribution between the restorative groups. CONCLUSIONS Although both types of restorations failed at loads larger than those found in the oral cavity, the CAD/CAM composite inlays increased the fracture resistance of teeth with large MOD cavities when compared to direct bulk-fill composite restorations. The majority of fracture types were intraorally repairable for both restorative techniques.
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95
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Shadman N, Farzin-Ebrahimi S, Mortazavi-Lahijani E, Jalali Z. Effect of chlorhexidine on the durability of a new universal adhesive system. J Clin Exp Dent 2018; 10:e921-e926. [PMID: 30386526 PMCID: PMC6203917 DOI: 10.4317/jced.53794] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 04/26/2018] [Indexed: 11/05/2022] Open
Abstract
Background The effect of chlorhexidine on bond durability of universal adhesives is not clear. The aim of this study was to evaluate the effect of chlorhexidine on 6-month water storage bond strength of adhesive systems. Material and Methods 72 freshly sound human extracted molars were selected. In each tooth both buccal and lingual sides were prepared by bur to reach superficial dentin and randomly divided into 6 groups and 12 sub-groups and bonded with Scotchbond Universal (SBU) or Scotchbond Multi-purpose (SBMP) with/without chlorhexidine (CHX) usage. Group 1: SBU, group2: SBU+CHX, group3: Etch+SBU, group4: Etch+CHX+SBU, group5: Etch+SBMP, group6: Etch+CHX+SBMP. After composite curing, water storage and thermocycling was done. Each group was divided into two subgroups. One was tested immediately, and the other was thermocycled for 5000 cycles (5-55 °C) (it was equivalent to 6 months of storage in distilled water). Shear bond strength test was done and failure modes were determined by Stereomicroscope. The data were analyzed by one-way ANOVA, Tukey post-hoc test and Paired Two test with P<0.050 as the level of significance. Results Shear bond strength in late SBU (Self etch) was significantly lower than late SBU [Etch and rinse (ER)], P value= 0.0001, also shear bond strength in late SBU [self-etch (SE)] was significantly lower than immediate SBU (SE), P value= 0.01. There were no significant differences between other sub-groups and conditions. The most failure mode was adhesive in all the groups. Conclusions Long term bonding durability of SBU(ER) was better than SBU (SE). CHX usage had prevented bond strength decrease in SBU and SBMP in long term. CHX usage did not have any effect on immediate shear bond strength of SBU and SBMP. Immediate and late shear bond strength of SBMP with/without CHX usage was similar to SBU(SE, ER). Key words:Dentin Bonding, Shear Bond Strength, chlorhexidine, 6-month storage.
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Affiliation(s)
- Niloofar Shadman
- DDS, MSc, Associate Professor, Department of Operative Dentistry, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
| | - Shahram Farzin-Ebrahimi
- DDS, MSc, Assistant Professor, Department of Operative Dentistry, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
| | - Elaheh Mortazavi-Lahijani
- DDS, MSc, Assistant Professor, Department of Operative Dentistry, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
| | - Zahra Jalali
- DDS, MSc Student, Department of Operative Dentistry, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
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96
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Daneshkazemi P, Ghasemi A, Daneshkazemi A, Shafiee F. Evaluation of micro shear bonding strength of two universal dentin bondings to superficial dentin by self etch and etch-and-rinse strategies. J Clin Exp Dent 2018; 10:e837-e843. [PMID: 30386514 PMCID: PMC6203927 DOI: 10.4317/jced.54740] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 07/18/2018] [Indexed: 11/05/2022] Open
Abstract
Background Universal bondings can be used either with the etch-and-rinse or self-etch technique. Thus, the present study was done to evaluate the micro-shear bonding strength of two types of Universal Bondings to superficial dentin i.e self-etch and etch and rinse. Material and Methods The samples included 70 tooth blocks taken from 35 extracted sound premolar teeth. The superficial dentin was exposed to grinding by 800 grit silicon carbide Disk. The samples were randomly divided into 5 equal groups (14 samples in each group). Scotch bond universal (3M/USA) and All bond universal (BISCO/USA) were applied by self-etch and etch and rinse technique in group 1-4 and Adper Single bond 2 (3M/USA) was used in group 5 as etch and rinse for the control group. Z250 XT (3M/USA) resin composite was bonded in tygon tube on surfaces of samples and were cured. Specimens were stored in distilled water at 37ºC for 24 h and then subjected to the micro shear bond strength test in a universal testing machine at a crosshead speed of 0.5 mm/min. The data were analyzed by two-way ANOVA and Tukey test. Failure mode was determined using a stereomicroscope under 20X magnification. Significance level was considered 0/05. Results The mean of micro-shear bonding strength and Standard Deviation of groups in Mega Pascal are respectively: 35.74 (6.21), 29.50 (3.89), 24.60 (3.53), 31.47 (4.73), 18.09 (3.87). The self-etch technique for Scotch bond Universal and the etch and rinse technique for All bond Universal showed higher micro shear bonding strength. Adper single bond 2 showed the lowest bond strength to a significant level in comparison to other groups (p<0.05). Failure mode was predominantly adhesive. Conclusions The micro shear bonding strength of universal adhesives was highly bonding-dependent. Universal bondings had higher micro-shear bonding strength than Adper single bond 2. Key words:Bond strength, dentin, self-etch, etch-and-rinse, universal bonding.
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Affiliation(s)
- Pedram Daneshkazemi
- Post graduate student, Department of orthodontics, Faculty of Dentistry, Islamic Azad University of Isfahan(khorasgan), Isfahan, Iran
| | - Amir Ghasemi
- Associate Professor of Operative and esthetic Dentistry Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Daneshkazemi
- Associate Professor of Operative and Esthetic Dentistry Department, Social Determinant of oral health research center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fahime Shafiee
- Post graduate student, Department of operative and esthetic dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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97
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Lima JFMD, Wajngarten D, Islam F, Clifford J, Botta AC. Effect of adhesive mode and chlorhexidine on microtensile strength of universal bonding agent to sound and caries-affected dentins. Eur J Dent 2018; 12:553-558. [PMID: 30369802 PMCID: PMC6178671 DOI: 10.4103/ejd.ejd_239_18] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Objective: The main objective of this study is to assess the effect of the adhesive mode and chlorhexidine (CHX) on the microtensile strength of a universal bonding agent to sound and caries-affected dentins. Materials and Methods: Six intact third molars and six decayed third molars were sectioned to obtain two middle dentin specimens per tooth. Prime and Bond Elect Universal (Dentsply) was applied to specimens in two different modes: Etch-and-rinse (ER, phosphoric acid for 15s) and self-etch (SE, no phosphoric acid). 2% CHX (Cavity Cleanser, Bisco) was applied to both dentins for 30 s. Specimens were randomly assigned into eight groups (n = 3) according to the treatments applied to sound and caries-affected dentins: SE; ER; SE + CHX; and ER + CHX. All specimens were restored with TPH Spectra High Viscosity (Dentsply) composite resin and sectioned to obtain specimens of 0.8 ± 0.1 mm2. The microtensile bond strength test was conducted at 1 mm/min. The data were statistically analyzed by ANOVA and multiple comparisons’ test (α = 0.05). Results: There was no significant difference between sound dentin and caries-affected dentin (P = 0.132). The highest bond strength was obtained with the application of the ER (31.81MPa). SE + CHX promoted the lowest bond strength with no statistical difference to ER + CHX (P > 0.05). Conclusions: ER mode for the universal bonding agent yielded the highest bond strength to sound and caries-affected dentins. CHX reduced the bond strength to both dentins regardless the application of phosphoric acid. Clinical Significance: The universal bonding agent increased the bond strength to sound and caries-affected dentins when applied by the ER mode.
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Affiliation(s)
| | - Danielle Wajngarten
- Department of Social Dentistry, Araraquara Dental School, Sao Paulo State University (UNESP), Araraquara, Sao Paulo, Brazil
| | - Fariya Islam
- Department of General Dentistry, Stony Brook University, School of Dental Medicine, NY, USA
| | - Johanna Clifford
- Department of General Dentistry, Stony Brook University, School of Dental Medicine, NY, USA
| | - Ana Carolina Botta
- Department of General Dentistry, Stony Brook University, School of Dental Medicine, NY, USA
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98
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Çakır NN, Demirbuga S. The effect of five different universal adhesives on the clinical success of class I restorations: 24-month clinical follow-up. Clin Oral Investig 2018; 23:2767-2776. [PMID: 30368662 DOI: 10.1007/s00784-018-2708-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 10/17/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the 24-month clinical performance of universal adhesives on the restoration success of Class I carious lesions. MATERIALS AND METHODS Five different universal adhesives (Gluma Bond Universal (GU), Clearfil Universal (CU), Prime&Bond Elect Universal (PU), All bond Universal (AU), and Single Bond Universal (SU)) were used in the self-etch and etch-and-rinse modes in 42 patients. The study was conducted with 10 groups, with 20 restorations in each group. The restorations were evaluated at baseline and during a 24-month recall using World Dental Federation (FDI) and the US Public Health Service (USPHS) criteria. The changes in the parameters were analyzed using the chi-square test. RESULTS At the end of 24 months, there was no loss of restoration in any group. According to the USPHS, there was no difference in the baseline and 24-month clinical behavior of the restorations (P ˃ 0.05). However, according to the FDI, when adhesives were used in the self-etch mode, three adhesives (GU, SU, PU) showed marginal incompatibility, and one adhesive showed (GU) marginal discoloration between baseline and the 24-month follow-up evaluation (P < 0.05). There was no significant difference after 24 months between etch-and-rinse and self-etch groups according to the results based on both the USPHS and FDI criteria (P ˃ 0.05). CONCLUSIONS The 24-month clinical performance of the evaluated universal adhesives depends on the adhesive strategy. CLINICAL RELEVANCE This study helps clinicians to decide in which mode (etch-and-rinse or self-etch) universal adhesives can be safely used.
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Affiliation(s)
- Nazire Nurdan Çakır
- Faculty of Dentistry, Department of Restorative Dentistry, Erciyes University, 38039, Melikgazi, Kayseri, Turkey.
| | - Sezer Demirbuga
- Faculty of Dentistry, Department of Restorative Dentistry, Erciyes University, 38039, Melikgazi, Kayseri, Turkey
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99
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Meda EM, Rached RN, Ignácio SA, Fornazari IA, Souza EM. Effect of Different Adhesive Strategies and Time on Microtensile Bond Strength of a CAD/CAM Composite to Dentin. Oper Dent 2018; 44:262-272. [PMID: 30212273 DOI: 10.2341/17-338-l] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
PURPOSE The aim of this study was to evaluate the effect of adhesive strategy and time on the microtensile bond strength of a computer-aided design/computer-aided manufacturing (CAD/CAM) composite to dentin. METHODS AND MATERIALS Sixty CAD/CAM composite blocks were bonded to human dentin with simplified bonding agents using etch-and-rinse and self-etching approaches and amine-based and amine-free resin cements, with and without the application of a dual-cure activator (DCA; n=10): SBP-ARC (Adper Single Bond Plus + RelyX ARC), SBP-RXU (Adper Single Bond Plus + RelyX Ultimate), SBP-DCA-RXU (Adper Single Bond Plus + DCA + RelyX Ultimate), SBU-ARC (Scotchbond Universal + RelyX ARC), SBU-RXU (Scotchbond Universal + RelyX Ultimate), and SBU-DCA-ARC (Scotchbond Universal + DCA + RelyX ARC). Each specimen was light cured for 40 seconds under load and stored in distilled water at 37°C for seven days. Stick-shaped specimens (1.0 mm2) were obtained. Half of the specimens underwent microtensile bond strength testing, and the other half were subjected to the same tests after six months of storage. Failure mode was determined using an optical microscope (40×). The data were analyzed by a two-way analysis of variance followed by the Games-Howell test and Student t-test (preset alpha of 0.05). RESULTS After seven days, SBU-RXU presented the highest mean bond strength, statistically different from only SBU-ARC (p<0.05). Most of the groups exhibited a statistically significant reduction in bond strength after 6 months (p<0.05), except SBP-RXU and SBU-ARC (p>0.05). CONCLUSION The adhesive strategy, with different associations between adhesive systems and resin cements, as well as the use of a DCA, affected the bond strength of both amine-free and amine-based resin cements to a CAD/CAM composite.
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100
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Effect of Surface Coating on Bond Strength between Etched Feldspar Ceramic and Resin-Based Luting Agents. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3039251. [PMID: 30140693 PMCID: PMC6081562 DOI: 10.1155/2018/3039251] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 07/10/2018] [Indexed: 11/23/2022]
Abstract
This study evaluated adhesive protocols (silane, silane and unfilled resin, and universal adhesive) of bond strength between feldspar ceramic and resin-based luting agents (RBLAs). Thirty ceramic disks were embedded into acrylic resin, polished, etched, and randomly divided into 6 groups: S-RC: silane (S) and light-cured resin cement (RC) (RelyX Veneer; 3M ESPE); SB-RC: S followed by bond (B) (Clearfil SE Bond, Kuraray) and RC; UA-RC: universal adhesive (UA) (Single Bond Universal; 3M ESPE) and RC; flowable composite resin (F) was used on groups S-F, SB-F, and UA-F, and luting agent cylinders were built. The response variables (n=20) were microshear bond strength (MPa), characteristic strength (σ0, MPa), and Weibull modulus (m). The RC groups presented similar bond strengths regardless of whether or not bond was used. The S-F group with only silane application showed the highest bond strength, while the universal adhesive showed the lowest bond strength. The reliability was only affected in the UA-RC group, which was lower than the S-F group. Silane application is fundamental since the universal adhesive only decreased the bond strength between the feldspar ceramic and the RBLAs. Overall, the use of unfilled resin did not positively influence bond strength.
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