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Yoshikawa T, Arakawa M. Effects of C-factor on dentin bonding using various adhesive systems. Niger J Clin Pract 2022; 25:255-260. [PMID: 35295045 DOI: 10.4103/njcp.njcp_1364_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Aims and Background This study evaluated the effect of C-factor on the bond strength of a resin composite to floor and wall dentin using various adhesive systems. Materials and Methods Four dentin substrates (flat wall, flat floor, cavity wall, or cavity floor) were prepared on human molars. Each specimen was restored with one of three adhesives; Clearfil SE Bond, Single Bond, or Clearfil tri-S Bond followed by buildup or filling using Z100 resin composite. The specimen was cut perpendicular to the bonded surface parallel to the floor or wall to obtain beams after light curing at 24,000 mJ/cm2. The microtensile bond strength to wall specimens or the cavity floor was determined. Data were analyzed. Results All adhesive systems exhibited the highest bond strength to flat wall group (p < 0.05). The bond strength to the cavity group was significantly lower than that to the respective flat group regardless of the bonding system (p < 0.05). There was no significant difference in bond strength with Clearfil SE Bond and Clearfil tri-S Bond between the cavity wall and cavity floor (p > 0.05). Conclusion The findings suggested that the strength of bonding to the cavity floor and cavity wall was affected by C-factor regardless of the adhesive system. Bonding to flat wall was higher than flat floor regardless of the adhesive system. Self-etching system provided uniform bond to the cavity wall and cavity floor dentin. However, total etching system reduced bond to the cavity floor than to the cavity wall.
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Affiliation(s)
- T Yoshikawa
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Yushima, Bunkyo-ku, Tokyo, Japan
| | - M Arakawa
- Department of Dental Hygiene, Chiba Prefectural University of Health Sciences, 2-10-1, Wakaba, Mihama-ku, Chiba-city, Chiba, Japan
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Survival of Prosthodontic Restorations Luted with Resin-Based versus Composite-Based Cements: Retrospective Cohort Study. MATERIALS 2022; 15:ma15010312. [PMID: 35009458 PMCID: PMC8746030 DOI: 10.3390/ma15010312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 12/04/2022]
Abstract
The purpose of this study was to evaluate clinical performance, survival, and complications of indirect composite inlays, onlays, and overlays on posterior teeth. Digital records of 282 patients treated between 2014 and 2018 were accessed and analyzed retrospectively. The included patients received 469 composite restorations luted with seven different resin-based types of cement, i.e., Filtek Ultimate Flow, Enamel Plus, Relyx Ultimate, Harvard Premium Flow, Relyx Unicem, Filtek Bulk Fill Flowable, and Filtek Ultimate. The restorations had been clinically and radiographically evaluated annually. The mechanical and clinical complications, e.g., debonding, fracture, and secondary caries, were evaluated and recorded. The examined restorations exhibited a high survival rate (84.9%), and failure was found in only 71 cases. Fracture was the most common cause (n = 36), followed by prosthetic work release (n = 19) and secondary caries (n = 16). There was a statistically significant difference between failure and cement material (Sig. < 0.001); the composite-based cements (87.2%) had a high survival rate compared to the resin-based cement (72.7%). Similarly, the cements with high viscosity (90.2%) had significantly higher survival rates than the low-viscosity cements (78.9%). Moreover, onlays showed higher longevity compared to overlays (Sig. = 0.007), and patients aged under 55 years showed less complications (Sig. = 0.036). Indirect composite restoration was a successful solution to tooth structure loss. The material of the cementation is an important part of the success. Higher survival rate was found in our study when the fixation materials with high viscosity were used, thus suggesting using these materials with indirect restorations. Composite-based cements had significantly higher survival rate than resin-based cements.
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Shimizu S, Sawada T, Asano A, Kan T, Noda M, Takemoto S. Effects of different bonding systems with various polymerization modes and root canal region on the bond strength of core build-up resin composite. J Prosthodont Res 2021; 65:521-527. [PMID: 34657928 DOI: 10.2186/jpr.jpr-d-20-00251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Purpose The aim of this study was to clarify the effects of different bonding systems (BSs) with various polymerization modes and root canal regions on the bond strength of core build-up resin composite to dentin.Methods Post cavities were prepared in the roots of 54 bovine teeth. Three types of BS with various polymerization modes (light, chemical, and dual-cure) were applied to the walls of the cavities, which were subsequently filled with core build-up resin composite, and stored in 37°C water for 7 days. Each tooth was then sectioned perpendicular to the long axis of the tooth into 9-disk from the coronal to the apical side. Bond strengths were measured on two-thirds of the disks, while dye penetration was examined in the remaining third.Results Statistical analysis revealed significant differences between the bond strengths of BSs with different polymerization modes, indicating chemical-cured BS had higher bond strength than light-cured BS. The chemical-cured BS group showed cohesive failure in both resin composite and dentin regardless of the root canal region, while adhesive failure was observed in the coronal region for dual-cured BS and in the apical region for light-cured BS. Dye penetration was significantly more at the bonding interface at the apical region of the light-cured BS.Conclusions Chemical-cured BS displayed a greater bond strength than light-cured BS. Cohesive failure was observed in both core build-up resin and dentin, indicating that the integration of tooth structure with resin composite was effective for retaining the resin core and sealing the root canal.
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Affiliation(s)
- Shunsuke Shimizu
- Division of Operative Dentistry and Endodontics, Department of Conservative Dentistry, School of Dentistry, Iwate Medical University, Iwate, Japan
| | - Tomofumi Sawada
- Department of Biomedical Engineering, Iwate Medical University, Iwate, Japan
| | - Akiko Asano
- Division of Operative Dentistry and Endodontics, Department of Conservative Dentistry, School of Dentistry, Iwate Medical University, Iwate, Japan
| | - Tetsuya Kan
- Division of Operative Dentistry and Endodontics, Department of Conservative Dentistry, School of Dentistry, Iwate Medical University, Iwate, Japan
| | - Mamoru Noda
- Division of Operative Dentistry and Endodontics, Department of Conservative Dentistry, School of Dentistry, Iwate Medical University, Iwate, Japan
| | - Shinji Takemoto
- Department of Biomedical Engineering, Iwate Medical University, Iwate, Japan
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Zhang X, Zhang Q, Meng X, Ye Y, Feng D, Xue J, Wang H, Huang H, Wang M, Wang J. Rheological and Mechanical Properties of Resin-Based Materials Applied in Dental Restorations. Polymers (Basel) 2021; 13:2975. [PMID: 34503014 PMCID: PMC8433687 DOI: 10.3390/polym13172975] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 08/28/2021] [Accepted: 08/28/2021] [Indexed: 11/26/2022] Open
Abstract
Resin-based materials have been prevalent for dental restorations over the past few decades and have been widely used for a variety of direct and indirect procedures. Typically, resin-based dental materials are required to be flowable or moldable before setting and can provide adequate mechanical strength after setting. The setting method may include, but is not limited to, light-curing, self-curing or heating. In this review, based on different indications of resin-based dental materials (e.g., dental filling composite, dental bonding agent, resin luting cement), their rheological and mechanical properties were reviewed. Viscous and flexible properties were focused on for materials before setting, while elastic properties and mechanical strength were focused on for materials after setting. At the same time, the factors that may affect their rheological and mechanical properties were discussed. It is anticipated that the insightful information and prospections of this study will be useful to the future development and fabrication of resin-based dental restorative materials.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Jing Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 Xincun Rd., Zibo 255000, China; (X.Z.); (Q.Z.); (X.M.); (Y.Y.); (D.F.); (J.X.); (H.W.); (H.H.); (M.W.)
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Shimizu S, Sawada T, Asano A, Kan T, Noda M, Takemoto S. Effects of different bonding systems with various polymerization modes and root canal region on the bond strength of core build-up resin composite. J Prosthodont Res 2021; 65:521-527. [PMID: 34657928 DOI: 10.2186/jpr.jpr_d_20_00251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE The aim of this study was to clarify the effects of different bonding systems (BSs) with various polymerization modes and root canal regions on the bond strength of core build-up resin composite to dentin. METHODS Post cavities were prepared in the roots of 54 bovine teeth. Three types of BS with various polymerization modes (light, chemical, and dual-cure) were applied to the walls of the cavities, which were subsequently filled with core build-up resin composite, and stored in 37ºC water for 7 days. Each tooth was then sectioned perpendicular to the long axis of the tooth into 9-disk from the coronal to the apical side. Bond strengths were measured on two-thirds of the disks, while dye penetration was examined in the remaining third. RESULTS Statistical analysis revealed significant differences between the bond strengths of BSs with different polymerization modes, indicating chemical-cured BS had higher bond strength than light-cured BS. The chemical-cured BS group showed cohesive failure in both resin composite and dentin regardless of the root canal region, while adhesive failure was observed in the coronal region for dual-cured BS and in the apical region for light-cured BS. Dye penetration was significantly more at the bonding interface at the apical region of the light-cured BS. CONCLUSIONS Chemical-cured BS displayed a greater bond strength than light-cured BS. Cohesive failure was observed in both core build-up resin and dentin, indicating that the integration of tooth structure with resin composite was effective for retaining the resin core and sealing the root canal.
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Affiliation(s)
- Shunsuke Shimizu
- Division of Operative Dentistry and Endodontics, Department of Conservative Dentistry, School of Dentistry, Iwate Medical University, Iwate
| | - Tomofumi Sawada
- Department of Biomedical Engineering, Iwate Medical University, Iwate
| | - Akiko Asano
- Division of Operative Dentistry and Endodontics, Department of Conservative Dentistry, School of Dentistry, Iwate Medical University, Iwate
| | - Tetsuya Kan
- Division of Operative Dentistry and Endodontics, Department of Conservative Dentistry, School of Dentistry, Iwate Medical University, Iwate
| | - Mamoru Noda
- Division of Operative Dentistry and Endodontics, Department of Conservative Dentistry, School of Dentistry, Iwate Medical University, Iwate
| | - Shinji Takemoto
- Department of Biomedical Engineering, Iwate Medical University, Iwate
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Bakhsh TA, Al-Jeffery B, Zaatari G, Badr H, Ameen S, Gashlan S, Dughmash L, Jamleh A. Evaluation of the adaptation of dental polymers using cross-polarization optical coherence tomography. Biomed Phys Eng Express 2019. [DOI: 10.1088/2057-1976/aafbad] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yoshikawa T, Sadr A, Tagami J. µCT-3D visualization analysis of resin composite polymerization and dye penetration test of composite adaptation. Dent Mater J 2018; 37:71-77. [PMID: 28845034 DOI: 10.4012/dmj.2016-323] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study evaluated the effects of the light curing methods and resin composite composition on composite polymerization contraction behavior and resin composite adaptation to the cavity wall using μCT-3D visualization analysis and dye penetration test. Cylindrical cavities were restored using Clearfil tri-S Bond ND Quick adhesive and filled with Clearfil AP-X or Clearfil Photo Bright composite. The composites were cured using the conventional or the slow-start curing method. The light-cured resin composite, which had increased contrast ratio during polymerization, improved adaptation to the cavity wall using the slow-start curing method. In the μCT-3D visualization method, the slow-start curing method reduced polymerization shrinkage volume of resin composite restoration to half of that produced by the conventional curing method in the cavity with adhesive for both composites. μCT-3D visualization method can be used to detect and analyze resin composite polymerization contraction behavior and shrinkage volume as 3D image in the cavity.
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Affiliation(s)
- Takako Yoshikawa
- Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)
| | - Alireza Sadr
- Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU).,IB3T Laboratory, Department of Restorative Dentistry, School of Dentistry, University of Washington
| | - Junji Tagami
- Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)
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Fang Y, Zhou A, Yang W, Araya T, Huang Y, Zhao P, Johnson D, Wang J, Ren ZJ. Complex Formation via Hydrogen bonding between Rhodamine B and Montmorillonite in Aqueous Solution. Sci Rep 2018; 8:229. [PMID: 29321609 PMCID: PMC5762650 DOI: 10.1038/s41598-017-18057-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 12/04/2017] [Indexed: 11/08/2022] Open
Abstract
This study investigates the adsorption mechanism differences among four nitrogenous dyes, sulforhodamine G (SRG), uncharged/deprotonated rhodamine B (RhB), orange II (Or II) and methyl blue (MB) by montmorillonite (MMT). MMT adsorption capacity for cationic MB was three times that of uncharged RhB and anionic SRG, while anionic Or II was not absorbed. Colloidal MMT particles have two types of surfaces, basal and edge, that interact with nitrogenous dyes very differently. The surface acidity of MMT was characterized with the pyridine adsorption method using in-situ diffuse reflectance infrared Fourier transform spectroscopy (in-situ DRIFTS). Adsorption of cationic MB was compared with the adsorption of RhB. In-situ attenuated total reflectance Fourier transform infrared (in-situ ATR-FTIR) spectroscopy indicated that a nitrogen atom on RhB complexes with a metal hydroxyl on an MMT edge through a water bridge. The highly polar edge hydroxyl is important to hydrogen bond formation. Cation ion exchange and washing experiments, as well as studies on the effect of temperature, pH and ionic strength on adsorption further clarified the adsorption mechanism. Our results provide insights into the effects of molecular structure on the adsorption of nitrogenous dyes by clay and the role of edge surfaces in the adsorption process.
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Affiliation(s)
- Yanfen Fang
- College of Biology & Pharmacy, China Three Gorges University, Yichang, 443002, China
- Innovation Center for Geo-Hazards and Eco-Environment in Three Gorges Area, Hubei Province, Yichang, 443002, China
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Ychang, 443002, China
| | - Ao Zhou
- College of Biology & Pharmacy, China Three Gorges University, Yichang, 443002, China
| | - Wei Yang
- College of Biology & Pharmacy, China Three Gorges University, Yichang, 443002, China
| | - Tirusew Araya
- Innovation Center for Geo-Hazards and Eco-Environment in Three Gorges Area, Hubei Province, Yichang, 443002, China
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Ychang, 443002, China
| | - Yingping Huang
- Innovation Center for Geo-Hazards and Eco-Environment in Three Gorges Area, Hubei Province, Yichang, 443002, China.
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Ychang, 443002, China.
| | - Ping Zhao
- College of Biology & Pharmacy, China Three Gorges University, Yichang, 443002, China
| | - David Johnson
- Innovation Center for Geo-Hazards and Eco-Environment in Three Gorges Area, Hubei Province, Yichang, 443002, China
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Ychang, 443002, China
| | - Jianzhu Wang
- Innovation Center for Geo-Hazards and Eco-Environment in Three Gorges Area, Hubei Province, Yichang, 443002, China
| | - Zhiyong Jason Ren
- Innovation Center for Geo-Hazards and Eco-Environment in Three Gorges Area, Hubei Province, Yichang, 443002, China.
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO, 80309, USA.
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