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Sundar VJ. Novel biocompatible denture material incorporating type I collagen with improved functional properties for oral health. Odontology 2024; 112:472-478. [PMID: 37914822 DOI: 10.1007/s10266-023-00866-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/08/2023] [Indexed: 11/03/2023]
Abstract
The use of collagen is the recent development in various medical fields. Huge quantities of hide and skin trimmings are generated during the leather processing are wasted or underutilized. Trimmings contain collagen which can be beneficially extracted and utilized for high value products. Poly methyl methacrylate based denture materials exhibit serious concerns such as high porosity, presence of residual monomer, shrinkage, distortion and high rate of deterioration of the materials. This study aims to incorporate extracted Type I collagen with polymer to obtain denture base and investigate its chemical and mechanical properties. The present research methodology also reduces the quantity of monomer and acrylic resin usage. The collagen was extracted from animal skin and hide trimmings which are otherwise disposed as wastes. This study investigated the effect of visco-elastic characteristics of resulted specimens and their transition temperature, mechanical properties, decomposition temperature and leachability. The collagen-based specimens have better tensile strength with high decomposition temperature compared to control specimens. Scanning Electron Microscopy analysis revealed that the experimental specimens was cohesive and homogeneous which explained the higher tensile and decomposition values. The study suggests that collagen cross-linked acrylic denture base exhibit better mechanical and thermal resistance properties when compared to control specimens. The study indicates that biomaterials are emerging as smart products of value in human health.
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Atalay S, Çakmak G, Fonseca M, Schimmel M, Yilmaz B. Effect of different disinfection protocols on the surface properties of CAD-CAM denture base materials. J Prosthet Dent 2023; 130:787-795. [PMID: 35148889 DOI: 10.1016/j.prosdent.2021.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 02/04/2023]
Abstract
STATEMENT OF PROBLEM Which disinfection protocol provides optimal water contact angle and microhardness for computer-aided design and computer-aided manufacturing (CAD-CAM) polymethyl methacrylate (PMMA) materials is unclear. PURPOSE The purpose of this in vitro study was to evaluate the effect of different disinfection protocols (1% sodium hypochlorite, denture cleanser gel, and effervescent tablet) on the water contact angle and microhardness of different CAD-CAM PMMA denture base materials by comparing them with a heat-polymerized PMMA. MATERIAL AND METHODS Disk-shaped specimens (Ø10×2 mm) were fabricated from 3 different CAD-CAM PMMAs-AvaDent (AV), Merz M-PM (M-PM), and Polident (Poli)-and a heat-polymerized PMMA (Vynacron) (CV) (n=21). Three disinfection protocols (1% sodium hypochlorite [HC], denture cleanser gel [GEL], an effervescent tablet [TAB]) were applied to simulate 180 days of cleansing. The water contact angle and microhardness of specimens were measured before and after disinfection and compared by using a 2-way ANOVA (α=.05). RESULTS For water contact angle, material (P=.010) and disinfection protocol (P=.002) had a significant effect. The material (P<.001), disinfection protocol (P=.001), and their interaction (P<.001) significantly affected the microhardness after disinfection. When the condition after disinfection was compared with that before disinfection, the water contact angle increased significantly in all material-disinfection protocol pairs (P≤.025), and microhardness increased significantly in all material-disinfection protocol pairs (P≤.040), except for GEL- (P=.689) or TAB-applied (P=.307) AV, HC-applied M-PM (P=.219), and TAB-applied Poli (P=.159). CONCLUSIONS The material and disinfection protocol affected the water contact angle of all tested PMMAs after disinfection, resulting in more hydrophobic surfaces for heat-polymerized or CAD-CAM PMMAs. The microhardness of heat-polymerized PMMA was less than that of all CAD-CAM PMMAs after disinfection, regardless of the protocol.
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Affiliation(s)
- Sevda Atalay
- Assistant Professor, Department of Prosthodontics, Istanbul Okan University, Faculty of Dentistry, Istanbul, Turkey
| | - Gülce Çakmak
- Buser Foundation Scholar for Implant Dentistry, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Manrique Fonseca
- Senior Lecturer, Department of Reconstructive Dentistry and Gerodontology. School of Dental Medicine University of Bern, Bern, Switzerland.
| | - Martin Schimmel
- Professor, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; External Researcher, Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Burak Yilmaz
- Associate Professor, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Associate Professor, Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland; Adjunct Professor, Division of Restorative and Prosthetic Dentistry, The Ohio State University, Columbus, Ohio
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Effect of Polymerization Time on Residual Monomer Release in Dental Composite: In Vitro Study. INT J POLYM SCI 2021. [DOI: 10.1155/2021/8101075] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Light activated resin-based composites are the most accepted and used materials among clinicians. The aim of this study is to determine the amount of residual monomer released from nanofiller composite resins for different polymerization times and storage periods in vitro. To this purpose, Tetric Ceram (Ivoclar, Liechtenstein), Clearfil Majesty Posterior (Kuraray, Japan), Grandio (VOCO, Germany), and Filtek Ultimate Universal (3M, USA) were used as nanofiller resin composites samples. Four groups (
, diameter: 5 mm, thickness: 2 mm) of each material were fabricated, and each group was exposed to three different polymerization time (10, 20 and 40 sec). High-performance liquid chromatography (HPLC) was used to measure the amount of monomers released over 1, 15, and 30 days. The highest amount of monomer release was seen in Tetric EvoCream composite, while the least monomer release was seen in Clearfil Majesty composite. Regardless of the polymerization time, material, or storage period, the highest amount of eluted monomer was Bis-GMA. It is observed that there is no statistically significant difference between various polymerization times. Monomer release reached its highest level on the 15th day and decreased on the 30th day for all composites. Polymerization time did not affect the monomer release from the composites, but the type of the monomers and concentration of the filler used in the composites affected the amount of released monomers. The use of TEGDMA (co)monomer reduced the monomer release.
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Interfacial Adhesion of a Semi-Interpenetrating Polymer Network-Based Fiber-Reinforced Composite with a High and Low-Gradient Poly(methyl methacrylate) Resin Surface. Polymers (Basel) 2021; 13:polym13030352. [PMID: 33499112 PMCID: PMC7865923 DOI: 10.3390/polym13030352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/16/2021] [Accepted: 01/18/2021] [Indexed: 12/03/2022] Open
Abstract
The research aimed to determine the tensile bond strength (TBS) between polymerized intact and ground fiber-reinforced composite (FRC) surfaces. FRC prepregs (a reinforcing fiber pre-impregnated with a semi-interpenetrating polymer network (semi-IPN) resin system; everStick C&B) were divided into two groups: intact FRCs (with a highly PMMA-enriched surface) and ground FRCs (with a low PMMA gradient). Each FRC group was treated with: StickRESIN and G-Multi PRIMER. These groups were further divided into four subgroups based on the application time of the treatment agents: 0.5, 1, 2, and 5 min. Next, a resin luting cement was applied to the FRC substrates on the top of the photo-polymerized treating agent. Thereafter, weight loss, surface microhardness, and TBS were evaluated. Three-factor analysis of variance (p ≤ 0.05) revealed significant differences in the TBS among the FRC groups. The highest TBS was recorded for the intact FRC surface treated with G-Multi PRIMER for 2 min (13.0 ± 1.2 MPa). The monomers and solvents of G-Multi PRIMER showed a time-dependent relationship between treatment time and TBS. They could diffuse into the FRC surface that has a higher PMMA gradient, further resulting in a high TBS between the FRC and resin luting cement.
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Perea-Lowery L, Minja IK, Lassila L, Ramakrishnaiah R, Vallittu PK. Assessment of CAD-CAM polymers for digitally fabricated complete dentures. J Prosthet Dent 2021; 125:175-181. [DOI: 10.1016/j.prosdent.2019.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 12/11/2019] [Accepted: 12/11/2019] [Indexed: 10/25/2022]
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Ranganathan A, Karthigeyan S, Chellapillai R, Rajendran V, Balavadivel T, Velayudhan A. Effect of novel cycloaliphatic comonomer on the flexural and impact strength of heat-cure denture base resin. J Oral Sci 2020; 63:14-17. [PMID: 33071248 DOI: 10.2334/josnusd.19-0493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This study aims to evaluate the impact of adding a novel tricyclodecane dimethanol diacrylate comonomer on the flexural strength (FS) and impact strength (IS) of heat-cure denture base resin at 10% and 20% (v/v) concentrations. To test the FS and IS, a sum total of 150 bar-shaped specimens were prepared according to standard specifications. For the FS, the specimens were subjected to the three-point bend test with a span length of 50 mm. For the IS, Charpy's test was executed with a span length of 60 mm. The FS was measured in MPa, and the IS was measured in kJ/m2. There was a statistically significant difference (P < 0.001) between the control and experimental groups in that both the FS and IS were increased in the experimental groups relative to the control group.
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Affiliation(s)
- Ajay Ranganathan
- Department of Prosthodontics, Crown and Bridge, Vivekanandha Dental College for Women
| | - Suma Karthigeyan
- Department of Prosthodontics, Crown and Bridge, Rajah Muthiah Dental College & Hospital
| | - Rahila Chellapillai
- Department of Public Health Dentistry, Vivekanandha Dental College for Women
| | | | | | - Anand Velayudhan
- Department of Prosthodontics, Crown and Bridge, Asan Memorial Dental College & Hospital
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Ajay R, Suma K, Rakshagan V, Ambedkar E, Lalithamanohari V, Sreevarun M. Effect of Novel Cycloaliphatic Comonomer on Surface Roughness and Surface Hardness of Heat-cure Denture Base Resin. J Pharm Bioallied Sci 2020; 12:S67-S72. [PMID: 33149433 PMCID: PMC7595474 DOI: 10.4103/jpbs.jpbs_20_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 01/30/2020] [Accepted: 03/09/2020] [Indexed: 01/13/2023] Open
Abstract
Background: Polymethyl methacrylate (PMMA) is a widely used resin in the field of prosthodontics for fabricating myriad orofacial prostheses. Albeit several advantages, it possesses certain lacunae concerning physicomechanical properties. Purpose: This in vitro research aimed to evaluate the surface roughness (SR) and hardness (SH) of heat-cured PMMA processed with a cycloaliphatic monomer, tricyclodecane dimethanol diacrylate (TCDDMDA), in methyl methacrylate at various concentrations. Materials and Methods: Groups have been divided into control (SRC and SHC) and experimental groups (SR10 and 20; SH10 and 20). Forty-five PMMA disc specimens were prepared. SR was assessed using a nanomechanical testing machine and the arithmetic roughness (Ra) was recorded. The same specimens were then subjected to Vicker’s microhardness testing and Vicker’s hardness number (VHN) was obtained. Data were compared using one-way analysis of variance (ANOVA) and post hoc Bonferroni tests (α=0.05). Results: The mean (standard deviation [SD]) of SRC, SR10, and 20 groups were 111.415 nm (0.789), 62.666 nm (0.482), and 41.004 nm (0.561), respectively. The mean (SD) VHN of SHC, SH10, and 20 groups were 21.003 (0.252), 23.975 (0.207), and 34.622 (0.079), respectively. Conclusion: The addition of TCDDMDA markedly decreased the SR and increased the SH of the experimental groups.
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Affiliation(s)
- Ranganathan Ajay
- Department of Prosthodontics and Crown and Bridge, Vivekanandha Dental College for Women, Elaiyampalayam, Tamil Nadu, India
| | - Karthigeyan Suma
- Department of Prosthodontics and Crown & Bridge, Rajah Muthiah Dental College & Hospital, Annamalai University, Annamalai Nagar, Tamil Nadu, India
| | - Vikraman Rakshagan
- Department of Prosthodontics and Implant Dentistry, Saveetha Dental College & Hospital, Saveetha University, Chennai, Tamil Nadu, India
| | - Elumalai Ambedkar
- Department of Prosthodontics and Crown & Bridge, Sri Venkateshwara Dental College & Hospital, Chennai, Tamil Nadu, India
| | - Vellingiri Lalithamanohari
- Department of Prosthodontics and Crown and Bridge, Vivekanandha Dental College for Women, Elaiyampalayam, Tamil Nadu, India
| | - Murugesan Sreevarun
- Department of Prosthodontics and Crown & Bridge, Best Dental Science College & Hospital, Madurai, Tamil Nadu, India
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The potential of dendrimer in delivery of therapeutics for dentistry. Heliyon 2019; 5:e02544. [PMID: 31687479 PMCID: PMC6820096 DOI: 10.1016/j.heliyon.2019.e02544] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 05/25/2019] [Accepted: 09/26/2019] [Indexed: 12/29/2022] Open
Abstract
Dendrimers are hyperbranched nanoparticle structures along with its surface modifications can to be used in dental biomaterials for biomimetic remineralisation of enamel and dentin. The review highlights the therapeutic applications of dendrimers in the field of dentistry. It addresses the possible mechanisms of enhancement of mechanical properties of adhesives and resins structure. Dendrimers due to its unique construction of possessing inner hydrophobic and outer hydrophilic structure can act as drug carrier for delivery of antimicrobial drugs for treatment of periodontal diseases and at peripheral dental implant areas. Dendrimers due to its hyperbranched structures can provides a unique drug delivery vehicle for delivery of a drug at specific site for sustained release for therapeutic effects. Thus, dendrimers can be one of the most important constituents which can be incorporated in dental biomaterials for better outcomes in dentistry.
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Ajay R, Suma K, Ali SA. Monomer Modifications of Denture Base Acrylic Resin: A Systematic Review and Meta-analysis. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2019; 11:S112-S125. [PMID: 31198322 PMCID: PMC6555369 DOI: 10.4103/jpbs.jpbs_34_19] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Methyl methacrylate monomer of denture base resins was modified with several monomers to achieve better physico-mechanical properties without compromising the biocompatibility. However, there are no consensuses on the best strategy to achieve best modified monomer. PURPOSE To identify and evaluate the differences in the properties between conventional and modified monomers and to verify the influence of several variables on the properties of denture base acrylic resin. MATERIALS AND METHODS This study was executed by following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. In-vitro studies that investigated the properties of conventional and modified monomers were selected. Searches were carried out in the Ebscohost, PubMed, Semantic scholar and J-stage databases. The search commenced from the year 1995 and the last search was done till November 2018. A comparison was performed between modified and unmodified monomers. The analyses were carried out using fixed-effect models. RESULTS The meta-analysis results showed high heterogeneity in all aspects, and higher flexural strength for monomers modified with 20% methacrylic acid. CONCLUSION Although the articles included in this meta-analysis showed high heterogeneity and high risk of bias, the in-vitro literature seems to suggest that use of modified monomers could improve the properties of denture base resins. Other variants of monomer modifications and their tested parameters were discussed in this systematic review as well. Dimensional accuracy is an unexplored variable to be evaluated extensively in the future researches.
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Affiliation(s)
- R. Ajay
- Department of Prosthodontics and Crown and Bridge, Vivekanandha Dental College for Women, Tiruchengode, Tamil Nadu, India
| | - K. Suma
- Department of Prosthodontics and Crown and Bridge, Rajah Muthiah Dental College and Hospital, Annamalai University, Chidambaram, Tamil Nadu, India
| | - Seyed Asharaf Ali
- Department of Prosthodontics and Crown and Bridge, Rajah Muthiah Dental College and Hospital, Annamalai University, Chidambaram, Tamil Nadu, India
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10
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Kim JS, Park HW, Lee JH, Lee SH, Cho JK, Shin S. Synthesis of a novel isosorbide-based dental material with improved water sorption. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.10.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Juráňová J. Illuminating the cellular and molecular mechanism of the potential toxicity of methacrylate monomers used in biomaterials. Drug Chem Toxicol 2019; 43:266-278. [DOI: 10.1080/01480545.2018.1488860] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jana Juráňová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hněvotínská 3, Olomouc, Czech Republic
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine, Palacky University, Hněvotínská 5, Olomouc, Czech Republic
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Hussein MA, Albeladi HK, Elsherbiny AS, El-Shishtawy RM, Al-romaizan AN. Cross-linked poly(methyl methacrylate)/multiwall carbon nanotube nanocomposites for environmental treatment. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.22093] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Mahmoud A. Hussein
- Chemistry Department; Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia
- Chemistry Department; Faculty of Science; Polymer Chemistry Lab.; Assiut University; Assiut Egypt
| | - Hasinah K. Albeladi
- Chemistry Department; Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia
| | - Abeer S. Elsherbiny
- Department of Chemistry; Faculty of Science; Tanta University; Tanta Egypt
- Department of Chemistry, Science and Art College; King Abdulaziz University; Rabigh Saudi Arabia
| | - Reda M. El-Shishtawy
- Chemistry Department; Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia
- Dyeing, Printing and Textile Auxiliaries Department; Textile Research Division; National Research Centre; Dokki Cairo Egypt
| | - Abeer N. Al-romaizan
- Chemistry Department; Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia
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Bahari M, Savadi Oskoee S, Mohammadi N, Ebrahimi Chaharom ME, Godrati M, Savadi Oskoee A. Effect of different bleaching strategies on microhardness of a silorane-based composite resin. J Dent Res Dent Clin Dent Prospects 2017; 10:213-219. [PMID: 28096946 PMCID: PMC5237667 DOI: 10.15171/joddd.2016.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 10/31/2016] [Indexed: 11/20/2022] Open
Abstract
Background. Dentists’ awareness of the effects of bleaching agents on the surface and mechanical properties of restorative materials is of utmost importance. Therefore, this in vitro study was undertaken to investigate the effects of different bleaching strategies on the microhardness of a silorane-based composite resin. Methods. Eighty samples of a silorane-based composite resin (measuring 4 mm in diameter and 2 mm in thickness) were prepared within acrylic molds. The samples were polished and randomly assigned to 4 groups (n=20). Group 1 (controls) were stored in distilled water for 2 weeks. The samples in group 2 underwent a bleaching procedure with 15% carbamide peroxide for two weeks two hours daily. The samples in group 3 were bleached with 35% hydrogen peroxide twice 5 days apart for 30 minutes each time. The samples in group 4 underwent a bleaching procedure with light-activated 35% hydrogen peroxide under LED light once for 40 minutes. Then the microhardness of the samples was determined using Vickers method. Data were analyzed with one-way ANOVA and post hoc Tukey tests (P < 0.05). Results. All the bleaching agents significantly decreased microhardness compared to the control group (P < 0.05). In addition, there were significant differences in microhardness between groups 2 and 4 (P = 0.001) and between groups 3 and 4 (P<0.001). However, no significant differences were detected in microhardness between groups 2 and 3 (P > 0.05). Conclusion. Bleaching agents decreased microhardness of silorane-based composite resin restorations, the magnitude of which depending on the bleaching strategy used.
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Affiliation(s)
- Mahmoud Bahari
- Dental and Periodontal Research Center, Tabriz of University Medical Sciences, Tabriz, Iran; Department of Operative Dentistry, Faculty of Dentistry, Tabriz of University Medical Sciences, Tabriz, Iran
| | - Siavash Savadi Oskoee
- Dental and Periodontal Research Center, Tabriz of University Medical Sciences, Tabriz, Iran; Department of Operative Dentistry, Faculty of Dentistry, Tabriz of University Medical Sciences, Tabriz, Iran
| | - Narmin Mohammadi
- Department of Operative Dentistry, Faculty of Dentistry, Tabriz of University Medical Sciences, Tabriz, Iran
| | | | - Mostafa Godrati
- Department of Endodontics, Faculty of Dentistry, Tabriz of University Medical Sciences, Tabriz, Iran
| | - Ayda Savadi Oskoee
- Dental and Periodontal Research Center, Tabriz of University Medical Sciences, Tabriz, Iran
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Feng D, Gong H, Zhang J, Guo X, Yan M, Zhu S. Effects of antibacterial coating on monomer exudation and the mechanical properties of denture base resins. J Prosthet Dent 2016; 117:171-177. [PMID: 27460322 DOI: 10.1016/j.prosdent.2016.05.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 05/22/2016] [Accepted: 05/25/2016] [Indexed: 10/21/2022]
Abstract
STATEMENT OF PROBLEM Denture base resin may be exposed to different conditions for long periods, resulting in the loss of monomer by exudation and a decrease in mechanical properties. PURPOSE The purpose of this in vitro study was to evaluate monomer loss by exudation from denture base resins doped with antibacterial coatings and their mechanical properties after long-term water immersion. MATERIAL AND METHODS Four kinds of dental base resin materials were used as experimental materials. The specimens of each resin were divided into an experimental group (coated) and a control group (uncoated). Monomer exudation was tested at 7 and 28 days by gas chromatography after materials were immersed in distilled water or a solution of 75% alcohol/distilled water. Flexural strength and elastic modulus were tested with a universal testing machine after immersion for 2 and 180 days. The surface morphology was characterized with atomic force microscopy. The data were analyzed using 3-way ANOVA followed by the Tukey-Kramer honest significant difference test (α=.05). RESULTS In both of the immersion media, each of the 3 factors (materials, coating, and immersion time) significantly affected the monomer exudation (P<.05). In addition, the interaction between any 2 of those factors or among the 3 factors had a significant interaction effect on the monomer exudation of the denture base (P<.05). The mechanical properties of the tested materials were different, and the immersion time had a significant effect on the flexural properties (P<.05). For flexural strength, a significant interaction effect occurred among the 3 factors (material, coating, and immersion time) (P<.05). The coating has a significant effect on the elastic modulus of denture base resin (P<.05) and on the interaction between the material and immersion time (P<.05). CONCLUSIONS The silver-loaded mesoporous silica antibacterial coating can effectively reduce monomer exudation and enhance the flexural properties of denture base resin after immersion.
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Affiliation(s)
- Dan Feng
- Postgraduate student, Department of Prosthodontics, School and Hospital of Stomatology, Jilin University, Jilin, People's Republic of China
| | - Haihuan Gong
- Postgraduate student, Department of Prosthodontics, School and Hospital of Stomatology, Jilin University, Jilin, People's Republic of China
| | - Jiahui Zhang
- Postgraduate student, Department of Prosthodontics, School and Hospital of Stomatology, Jilin University, Jilin, People's Republic of China
| | - Xiaowei Guo
- Postgraduate student, Department of Prosthodontics, School and Hospital of Stomatology, Jilin University, Jilin, People's Republic of China
| | - Min Yan
- Postgraduate student, Department of Prosthodontics, School and Hospital of Stomatology, Jilin University, Jilin, People's Republic of China
| | - Song Zhu
- Professor, Department of Prosthodontics, School and Hospital of Stomatology, Jilin University, Jilin, People's Republic of China.
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Jaymand M, Lotfi M, Lotfi R. Functional dendritic compounds: potential prospective candidates for dental restorative materials and in situ re-mineralization of human tooth enamel. RSC Adv 2016. [DOI: 10.1039/c6ra05722e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review provides a snapshot of recent progress in the synthesis and application of dendritic compounds as potential prospective candidates for dental restorative materials andin siture-mineralization of human tooth enamel.
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Affiliation(s)
- Mehdi Jaymand
- Research Center for Pharmaceutical Nanotechnology
- Tabriz University of Medical Sciences
- Tabriz
- Iran
| | - Meherdad Lotfi
- Research Center for Pharmaceutical Nanotechnology
- Tabriz University of Medical Sciences
- Tabriz
- Iran
- Department of Endodontics
| | - Rana Lotfi
- Faculty of Health
- York University
- Toronto
- Canada
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16
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Yu B, Liu F, He J, He Y, Lin Z. Preparation of Bis-GMA-Free Dental Restorative Composites with Dendritic Macromer (G-IEMA). ADVANCES IN POLYMER TECHNOLOGY 2015. [DOI: 10.1002/adv.21519] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Biao Yu
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - Fang Liu
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - Jingwei He
- College of Materials Science and Engineering; South China University of Technology; Guangzhou 510641 People's Republic of China
| | - Yingcong He
- Department of Conservative Dentistry and Endodontics; Guanghua School of Stomatology; Hospital of Stomatology; Sun Yat-Sen University; Guangzhou 510055 People's Republic of China
- Guangdong Provincial Key Laboratory of Stomatology; Guangzhou 510055 People's Republic of China
| | - Zhengmei Lin
- Department of Conservative Dentistry and Endodontics; Guanghua School of Stomatology; Hospital of Stomatology; Sun Yat-Sen University; Guangzhou 510055 People's Republic of China
- Guangdong Provincial Key Laboratory of Stomatology; Guangzhou 510055 People's Republic of China
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Effect of silver-supported materials on the mechanical and antibacterial properties of reinforced acrylic resin composites. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.matdes.2014.10.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kawaguchi T, Lassila LV, Sasaki H, Takahashi Y, Vallittu PK. Effect of heat treatment of polymethyl methacrylate powder on mechanical properties of denture base resin. J Mech Behav Biomed Mater 2014; 39:73-8. [DOI: 10.1016/j.jmbbm.2014.07.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 06/30/2014] [Accepted: 07/15/2014] [Indexed: 10/25/2022]
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Murakami N, Wakabayashi N, Matsushima R, Kishida A, Igarashi Y. Effect of high-pressure polymerization on mechanical properties of PMMA denture base resin. J Mech Behav Biomed Mater 2013; 20:98-104. [DOI: 10.1016/j.jmbbm.2012.12.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 12/26/2012] [Accepted: 12/30/2012] [Indexed: 11/16/2022]
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Łukaszczyk J, Janicki B, Frick A. Investigation on synthesis and properties of isosorbide based bis-GMA analogue. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:1149-1155. [PMID: 22407000 PMCID: PMC3334486 DOI: 10.1007/s10856-012-4594-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Accepted: 02/15/2012] [Indexed: 05/31/2023]
Abstract
The aim of this work was to synthesize and investigate properties of a novel dimethacrylic monomer based on bioderived alicyclic diol--isosorbide. Its potential as a possible substitute of 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane (BISGMA), widely used in dental restorative materials and suspected for toxicity was assessed. The novel monomer was obtained in a three-step synthesis. First, isosorbide was etherified by a Williamson nucleophilic substitution and subsequently oxidized to isosorbide diglycidyl ether (ISDGE). A triphenyl phosphine catalyzed addition of methacrylic acid to ISDGE resulted in 2,5-bis(2-hydroxy-3-methacryloyloxypropoxy)- 1,4:3,6-dianhydro-sorbitol (ISDGMA). The monomer obtained was photopolymerized using camphorquinone/2-(dimethylamino)ethyl methacrylate initiating system. Next, compositions with triethylene glycol dimethacrylate (TEGDMA) were prepared and polymerized. Double bond conversion, polymerization shrinkage and water sorption of resulting polymers were determined. Selected mechanical (flexular strength and modulus, Brinell hardness) and thermomechanical (DMA analysis) properties were also investigated. BISGMA based materials were prepared as reference for comparison of particular properties.
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Affiliation(s)
- Jan Łukaszczyk
- Faculty of Chemistry, Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, ul. M. Strzody 9, 44-100 Gliwice, Poland.
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