4,302 results match your criteria test adhesives

Physicochemical properties and biological effects of quaternary ammonium methacrylates in an experimental adhesive resin for bonding orthodontic brackets.

J Appl Oral Sci 2021 3;29:e20201031. Epub 2021 May 3.

Universidade Federal do Rio Grande, Pós-Graduação em Odontologia da do Sul, Porto Alegre, RS, Brasil.

Methodology: Fixed orthodontic appliances may lead to biofilm accumulation around them that may increase caries risk. This study aimed to evaluate the influence of quaternary ammonium methacrylates (QAMs) on the physicochemical properties, cytotoxicity, and antibacterial activity of adhesive resins for orthodontic purposes. A base resin was prepared with a comonomer blend and photoinitiator/co-initiator system. Read More

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Effect of double layer application on bond durability of universal adhesives to proximal dentin-cementum gingival margins.

Am J Dent 2021 Apr;34(2):80-86

Bioscience Research Center, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA.

Purpose: To evaluate and compare the effect on micro-tensile bond strength (µTBS) of a double layer application of three universal adhesives applied in self-etch mode to proximal dentin/cementum gingival margins of class II direct composite restorations, immediately and after 12 months water storage.

Methods: 66 molars with compound class II cavities, with gingival margin 1 mm below CEJ, were divided into three groups according to the universal adhesive used. The adhesives evaluated included All-Bond Universal (AB), Single Bond Universal (SB), and Prime&Bond Elect (PB). Read More

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Probing the mineralized tissue-adhesive interface for tensile nature and bond strength.

J Mech Behav Biomed Mater 2021 Apr 29;120:104563. Epub 2021 Apr 29.

Institute for Bioengineering Research (IBER), University of Kansas, 1530 W. 15th St, Lawrence, KS, 66045, USA; Department of Mechanical Engineering, University of Kansas, 1530 W. 15th St, Lawrence, KS, 66045, USA; Civil, Environmental and Architectural Engineering Department, University of Kansas, 1530 W. 15th St, Lawrence, KS, 66045, USA. Electronic address:

The mechanical performance of the dentin-adhesive interface contributes significantly to the failure of dental composite restorations. Rational material design can lead to enhanced mechanical performance, but this requires accurate characterization of the mechanical behavior at the dentin-adhesive interface. The mechanical performance of the interface is typically characterized using bond strength tests, such as the micro-tensile test. Read More

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Influence of reduced application time on bonding durability of universal adhesives to demineralized enamel.

Muhammet Karadas

Clin Oral Investig 2021 Apr 30. Epub 2021 Apr 30.

Department of Restorative Dentistry, Faculty of Dentistry, Recep Tayyip Erdogan University, 53100, Rize, Turkey.

Objectives: This study aimed to assess the effect of application time on the microshear bond strength (μSBS) of three universal adhesives in demineralized and sound enamel before and after aging.

Materials And Methods: Bovine teeth (192) were prepared where buccal surfaces were ground and divided into two groups (sound enamel and demineralized enamel). The specimens in each group were divided into 12 subgroups by combining 3 adhesive agents (All-Bond Universal, Scotchbond Universal, and Tokuyama Universal Bond) × 4 adhesion strategy. Read More

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Comparison of VOC Emissions Produced by Different Types of Adhesives Based on Test Chambers.

Materials (Basel) 2021 Apr 12;14(8). Epub 2021 Apr 12.

Department of Thermal Physics, Acoustics and Environment, Building Research Institute, 00-611 Warsaw, Poland.

Volatile organic compounds (VOCs) emitted from building materials into the indoor air may cause discomfort associated with a perceptible chemical odour and may irritate the upper respiratory tract. Hence, it is vital to control indoor air pollution sources, such as interior finishing materials, including adhesives. The study involved carrying out a series of experimental tests of VOC emissions of 25 adhesives based on the ISO 16000 series standards. Read More

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Light Transmittance and Depth of Cure of a Bulk Fill Composite Based on the Exposure Reciprocity Law.

Braz Dent J 2021 Jan-Feb;32(1):78-84

Department of Restorative Dental Sciences, Operative Dentistry Division, College of Dentistry, University of Florida, Gainesville, FL, USA.

The objective of this study was to evaluate the effect of the exposure reciprocity law of a multi-wave light-emitting diode (LED) on the light transmittance (LT), depth of cure (DOC) and degree of conversion in-depth (DC) of a bulk fill composite. A bulk fill composite (EvoCeram® bulk fill, Ivoclar Vivadent) was photoactivated using the multi-wave LED (VALO™ Cordless, Ultradent). The LED was previously characterized using a spectrophotometer to standardize the time of exposure when using the Standard or Xtra-Power modes with the same radiant exposure of 20J/cm2. Read More

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Synergistic effect of graphene oxide/calcium phosphate nanofiller in a dentin adhesive on its dentin bond integrity and degree of conversion. A scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared, micro-Raman, and bond strength study.

Microsc Res Tech 2021 Apr 29. Epub 2021 Apr 29.

Department of Prosthetic Dental Science, College of Dentistry, King Saud University; Research Chair for Biological Research in Dental Health, Riyadh, Saudi Arabia.

The objective was to formulate and analyze a dentin adhesive incorporated with graphene oxide (GO) nanoparticle and calcium phosphate (CaP) composite. Methods comprising of scanning electron microscopy (SEM)-energy dispersive X-ray spectroscopy (EDX), micro-Raman spectroscopy, shear bond strength (SBS), and Fourier transform infrared (FTIR) spectroscopy were used to characterize nanoparticle composite, dentin bond toughness, degree of conversion (DC), and adhesive-dentin interaction. Postsynthesis of GO nanoparticles, they were functionalized with CaP using standard process. Read More

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Efficacy evaluation of anforming tissue adhesive hydrogel as sealant for lung and vascular injury.

Biomed Mater 2021 Apr 26. Epub 2021 Apr 26.

Raja Ramanna Fellow, Rajiv Gandhi Centre for Biotechnology, Jagathy, poojapura, Trivandrum, Kerala, 695006, INDIA.

In situ forming tissue adhesives based on biopolymers offer advantages over conventional sutures and staples in terms of biocompatibility, biodegradability, ease of application and improved patient compliance and comfort. Here, we describe the evaluation of in situ gelling hydrogel system based on dextran dialdehyde (DDA) obtained by periodate oxidization of dextran and chitosan hydrochloride (CH) as tissue adhesive. The hydrogel was prepared by reacting aldehyde functions in DDA with the amino functions in CH via Schiff's reaction. Read More

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Retentive efficacy, antimicrobial and cytotoxicity comparisons between different types of commercial and experimental denture adhesives with antifungal action.

Dent Mater J 2021 Apr 22. Epub 2021 Apr 22.

Department of Restorative Dentistry, Faculty of Dentistry, Federal University of Pelotas.

The effect of the addition of nystatin and an alternative antifungal derived from pyrazoles in different commercial denture adhesives on their retentive efficacy, cytotoxicity and antimicrobial activity against Candida albicans was evaluated. Commercial denture adhesives were prepared with the inclusion of nystatin and 3,5-diaryl-4,5-dihydro-1H-pyrazole-1-carboximidamide (pyrazole) in three concentrations: 23.78 %w/w, 3. Read More

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Effect of Different Light-Curing Modes on Bond Strength of Ceramic Laminate Veneers.

Int J Prosthodont 2021 Mar-Apr;34(2):221-228

Purpose: To investigate whether high-level irradiance and short light exposure times with light-emitting diode (LED) curing units could provide bond strength comparable to halogen lights for ceramic laminate veneers (CLVs).

Materials And Methods: A total of 160 extracted human maxillary central incisors were prepared to receive CLVs (lithium disilicate) in shades A1 and A3.5. Read More

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A systematic review and meta-analyses on animal models used in bone adhesive research.

J Orthop Res 2021 Apr 19. Epub 2021 Apr 19.

Department of Surgery, Radboud University Medical Centre, Nijmegen, The Netherlands.

Currently, steel implants are used for osteosynthesis of (comminuted) fractures and intra-articular bone defects. These osteosyntheses can sometimes be complicated procedures and can have several drawbacks including stress shielding of the bone. A bone glue might be a safe and effective alternative to current materials. Read More

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Deproteinization of caries-affected dentin with chemo-mechanical caries removal agents and its effect on dentin bonding with self-etch adhesives.

J Dent 2021 Apr 14;109:103665. Epub 2021 Apr 14.

Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.

Objectives: To evaluate the micro-tensile bond strength (μTBS) of self-etch adhesives (SEA) to normal and caries-affected dentin after smear layer deproteinization with papain enzyme-based and NaOCl-based chemo-mechanical caries removal agents (CRAs) and to compare their efficacy to a 6 % NaOCl solution.

Methods: Forty extracted human molars with occlusal carious lesions were randomly divided into four pretreatment groups: no treatment (control), Papacarie for 60 s, Carisolv for 60 s, and 6 % NaOCl for 15 s. After pretreatment, Universal Bond Quick ER (UBQ, one-step, 1-SEA) or Clearfil SE Bond 2 (CSE, two-step, 2-SEA) was applied to the pre-treated surface, and built-up with resin composite (Clearfil AP-X). Read More

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Current Concepts on Tissue Adhesive Use for Meniscal Repair-We Are Not There Yet: A Systematic Review of the Literature.

Am J Sports Med 2021 Apr 15:3635465211003613. Epub 2021 Apr 15.

Sports Medicine Institute, Hospital for Special Surgery, New York, USA.

Background: Tissue adhesives (TAs) represent a promising alternative or augmentation method to conventional tissue repair techniques. In sports medicine, TA use has been suggested and implemented in the treatment of meniscal tears. The aim of this review was to present and discuss the current evidence and base of knowledge regarding the clinical usage of TAs for meniscal repair. Read More

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Dataset on the effect of flavonoids on the stabilization of the resin-dentin interface.

Data Brief 2021 Apr 19;35:106984. Epub 2021 Mar 19.

Grupo de Investigaciones Básicas y Aplicadas en Odontología, Departamento de Salud Oral, Facultad de Odontología, Universidad Nacional de Colombia, Bogotá, Colombia.

Data in this article are associated with our research article "Effect of Myricetin on Odontoblast-like Cells and its Potential to Preserve Resin-Dentin Bonds." Both a poor infiltration of resin monomers into the demineralized dentin matrix and hydrolytic degradation of the adhesive could lead to the instability of the resin-dentin interface. The degradation of collagen is caused by matrix metalloproteinases (MMP) and cysteine cathepsins. Read More

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Effect of different surface treatment on the repair bond strength of feldspathic porcelain.

Dent Med Probl 2021 Jan-Mar;58(1):107-113

Department of Restorative Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Background: Considering the use of silane-containing universal adhesives to enhance the repair bond strength of porcelain restorations, a question arises whether the application of these adhesives eliminates the need for a separate application of silane or not.

Objectives: This study aimed to assess the effect of various kinds of surface treatment, including hydrofluoric acid (HF) etching, the application of bis-silane and the use of universal adhesives, on the repair bond strength of feldspathic porcelain.

Material And Methods: In this experimental in vitro study, 70 porcelain disks were fabricated and divided into 7 groups (n = 10) for the following types of surface treatment: C (control group) – HF etching + silane + Porcelain Bond; HSB – HF etching + Single Bond; HSSB – HF etching + silane + Single Bond; HAB – HF etching + All Bond; HSAB – HF etching + silane + All Bond; HFB – HF etching + FuturaBond®; and HSFB – HF etching + silane + FuturaBond. Read More

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Minimal intervention in dentistry: which is the best approach for silorane composite restoration repairs?

J Clin Exp Dent 2021 Apr 1;13(4):e357-e362. Epub 2021 Apr 1.

DDS, Ms, PhD. Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University-UNESP, São Paulo, Brazil.

Background: This study aimed to evaluate surface treatments, adhesives and composites for repairing silorane based restorations.

Material And Methods: One hundred and twenty truncated cones (2 mm smaller diameter and 4 mm larger diameter) made of silorane composite were divided in 12 groups according with the surface treatment (diamond bur and oxide aluminum abrasion), the adhesive (Adper Scothbond Multipurpose (3M ESPE), Ecusit (Voco) and Filtek P90 Adhesive (3M ESPE)). Each group was subdivided in two according with the composite used for repair (methacrylate and silorane). Read More

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To etch or not to etch, Part I: On the fatigue strength and dentin bonding performance of universal adhesives.

Dent Mater 2021 Apr 7. Epub 2021 Apr 7.

Department of Restorative Dentistry and Cariology, Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku, Turku, Finland; Turku University Hospital, TYKS, University of Turku, Turku, Finland. Electronic address:

Objective: To characterize whether the bonding performance and fatigue strength of resin-dentin interfaces created by a universal adhesive would be affected by different HPO-application times to more accurately assess long-term durability.

Methods: Mid-coronal flat dentin surfaces with standardized smear-layers were produced on sound third molars, etched with 32% HPO for 0, 3 and 15 s, bonded with a mild universal adhesive (3M-ESPE) and restored with a nanofilled composite. Bonded specimens (0. Read More

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[Effect of subpressure on the bonding strength of resin to polycrystalline particulates modified zirconia ceramic].

Zhonghua Kou Qiang Yi Xue Za Zhi 2021 Apr;56(4):342-348

Institute of Dental Research, Capital Medical University School of Stomatology, Beijing 100050, China.

To explore the effect of subpressure on the bonding strength of resin to polycrystalline particulates modified zirconia ceramic. One hundred and twenty pre-sintered zirconia discs were prepared and divided into the control group, the sandblasting group and the 30, 50, 70 s acid etching group (24 per group) by the random number table method. There was no additional treatment in the control group and sandblasting group before sinering. Read More

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Effect of universal adhesive and silane pretreatment on bond durability of metal brackets to dental glass ceramics.

Eur J Oral Sci 2021 04;129(2):e12772

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.

This study aimed to investigate the effect of universal adhesive and silane pretreatment on the bond durability of metal brackets to dental glass ceramics. Eighty lithium disilicate glass ceramic specimens were randomly assigned to one of four groups (n = 20) defined by the pretreatment and adhesive used: (i) Adper Single Bond 2; (ii) silane + Adper Single Bond 2; (iii) Single Bond Universal; and (iv) silane +Single Bond Universal. Maxillary central incisor metal brackets were bonded on the ceramic surfaces with resin composite. Read More

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Immediate and Delayed Bond Strength of a Multimode Adhesive to Deep Coronal Dentin Following Different Root Canal Irrigation Regimens.

J Adhes Dent 2021 Apr;23(2):167-175

Purpose: To investigate the effects of root canal irrigants, dentin surface treatment, and timing of the restoration on the microtensile bond strength (μTBS) of a universal adhesive to deep coronal dentin.

Materials And Methods: Ninety (90) intact molars were grouped according to the irrigation protocol: group 0 (saline, control group); group 1: 5.25% sodium hypochlorite (NaOCl), 17% ethylenediaminetetraacetic acid (EDTA) followed by 5. Read More

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Effect of Addition of Dimethyl Sulfoxide to Simplified Adhesives on Dentin Bond Durability after Three Years of Water Storage.

J Adhes Dent 2021 Apr;23(2):159-165

Purpose: To evaluate the effect of inclusion of two dimethyl sulfoxide (DMSO) concentrations in simplified etch-and-rinse adhesives on dentin bonding durability after three years of water storage.

Materials And Methods: Forty-two caries-free third molars were divided into six experimental groups (n = 7) according to the following factors: 1) adhesive (Adper Single Bond 2 [SB], 3M Oral Care; Prime&Bond 2.1 [PB], Dentsply Sirona); 2) concentration of DMSO (control group: 0. Read More

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Bonding Behavior Between Polyetheretherketone and Polymethylmethacrylate Acrylic Denture Polymer.

J Adhes Dent 2021 Apr;23(2):145-158

Purpose: To investigate the impact of pretreatment and conditioning on shear bond strength (SBS), surface free energy (SFE) and surface roughness (SR) between polyetheretherketone (PEEK) and cold-cured polymethylmethacrylate (PMMA).

Materials And Methods: PEEK substrates (Dentokeep PEEK Disc, nt-trading) were air abraded with Al2O3 particles of different grain sizes applied with varying pressure at 1) 0.2 MPa - 50 µm Al2O3; 2) 0. Read More

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Effect of Light-curing Unit Design and Mouth Opening on the Polymerization of Bulk-fill Resin-based Composite Restorations in Molars.

J Adhes Dent 2021 Apr;23(2):121-131

Purpose: This study evaluated the effect of the design of the light-curing unit (LCU) and mouth opening on the properties of bulk-fill resin-based composites (RBCs).

Materials And Methods: Eighty molars received a mesio-occlusal-distal preparation and were restored using two different bulk-fill RBCs, Opus Bulk Fill APS (FGM) and Filtek Bulk Fill One (3M Oral Care), using two different designs of LCU, straight (Valo Cordless [Ultradent]) and angled (Radii-Cal [SDI]). Two mouth openings of 25 and 45 mm at the incisors were used. Read More

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Synthesis of Lignin-Based MMA--BA Hybrid Resins from Cornstalk Residue via RAFT Miniemulsion Polymerization and Their Characteristics.

Polymers (Basel) 2021 Mar 22;13(6). Epub 2021 Mar 22.

Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China.

The conversion of cornstalk lignin derived from the co-product of bio-refinery into value-added products such as polymeric material has remarkable environmental and economic potential. A novel bio-based methyl methacrylate copolymerized with butyl acrylate (MMA--BA) hybrid resin in our research was prepared by the reversible addition-fragmentation chain transfer method using lignin-graft-polyacrylamide (lignin-g-PAM) as a bio-derived macromolecular chain transfer agent. The molecular architecture of lignin-g-PAM and the lignin-based MMA--BA hybrid resin was elucidated using H nuclear magnetic resonance and attenuated total reflectance-Fourier transform infrared. Read More

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Dentin Bond Integrity of Filled and Unfilled Resin Adhesive Enhanced with Silica Nanoparticles-An SEM, EDX, Micro-Raman, FTIR and Micro-Tensile Bond Strength Study.

Polymers (Basel) 2021 Mar 30;13(7). Epub 2021 Mar 30.

Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia.

The objective of this study was to synthesize and assess unfilled and filled (silica nanoparticles) dentin adhesive polymer. Methods encompassing scanning electron microscopy (SEM)-namely, energy dispersive X-ray spectroscopy (EDX), micro-tensile bond strength (µTBS) test, Fourier transform infrared (FTIR), and micro-Raman spectroscopy-were utilized to investigate Si particles' shape and incorporation, dentin bond toughness, degree of conversion (DC), and adhesive-dentin interaction. The Si particles were incorporated in the experimental adhesive (EA) at 0, 5, 10, and 15 wt. Read More

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Biocompatibility and Effectiveness of a Novel, Organic Olive Oil-Based Denture Adhesive: A Multicenter Randomized and Placebo-Controlled Clinical Trial.

Int J Environ Res Public Health 2021 03 25;18(7). Epub 2021 Mar 25.

Department of Conservative Dentistry and Orofacial Prosthodontics, Faculty of Dentistry, Complutense University of Madrid, 28040 Madrid, Spain.

To assess the clinical efficacy of a novel, organic olive oil-based denture adhesive and its effect on growth in maxillary edentulous individuals wearing complete dentures, individuals were selected from two dental schools in Portugal and Spain. Twenty-eight complete dentures were relined, following a standardized protocol. The novel product (test) was compared with a commercialized adhesive (control) and Vaseline (placebo) randomly assigned in a cross-study design. Read More

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Characterization of an Experimental Two-Step Self-Etch Adhesive's Bonding Performance and Resin-Dentin Interfacial Properties.

Polymers (Basel) 2021 Mar 25;13(7). Epub 2021 Mar 25.

Department of Restorative Dentistry, Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo 060-8586, Japan.

This study evaluated an experimental two-step self-etch adhesive (BZF-29, BZF) by comparing it with a reference two-step self-etch adhesive (Clearfil Megabond 2, MB) and a universal adhesive (G-Premio Bond, GP) for microtensile bond strength (μTBS) and resin-dentin interfacial characteristics. Twenty-four human third molars were used for the μTBS test. Bonded peripheral dentin slices were separated to observe the resin-dentin interface and measure the adhesive layer thickness with SEM. Read More

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Characterization of Methacrylate-Based Resins Containing Methacryl-Polyhedral Oligomeric Silsesquioxanes (MA-POSS-8).

Materials (Basel) 2021 Mar 29;14(7). Epub 2021 Mar 29.

Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, 37075 Göttingen, Germany.

The use of functionalized dental adhesives that might prevent degradation of the dentin hybrid layer has been proposed. The aim of the study was to characterize the physicochemical properties and the potential to induce mineral precipitation of methacrylate-based resins containing methacryl-functionalized polyhedral oligomeric silsesquioxane (MA-POSS-8). In total, six different compositions of resins based on bisphenol A glycerolate dimethacrylate (BisGMA, 40 to 60 wt. Read More

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Detection of Inflammatory and Homeostasis Biomarkers after Selective Removal of Carious Dentin-An In Vivo Feasibility Study.

J Clin Med 2021 Mar 2;10(5). Epub 2021 Mar 2.

Department of Cariology, Endodontology and Periodontology, University of Leipzig, Liebigstr. 12, 04103 Leipzig, Germany.

Deep carious dentin lesions induce an immune reaction within the pulp-dentin complex, leading to the release of cytokines, which might be suitable biomarkers in pulp diagnostics. This in vivo feasibility study determines the concentration of different cytokines after selective removal of carious infected dentin (SCR). In our methodology, paired samples are obtained from 21 patients-each of them with two deep carious lesions at posterior teeth without clinical symptoms. Read More

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Comparative evaluation of the shear bond strength of ceramic brackets of three different base designs bonded to amalgam and composite restorations with different surface treatment.

Dent Med Probl 2021 Mar 31. Epub 2021 Mar 31.

Faculty of Dentistry, Tehran University of Medical Sciences, Iran.

Background: Nowadays, due to the increasing number of adult orthodontic applicants, who also have multiple dental restorations, it is important to have the ability to bond an orthodontic appliance to restoration surfaces.

Objectives: The aim of this paper was to determine the shear bond strength of ceramic brackets of 3 different base designs bonded to amalgam and composite restorations after using different surface treatment methods in vitro.

Material And Methods: In an in vitro study, the surfaces of 180 amalgam and composite specimens were prepared by using sandblasting and the erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser irradiation. Read More

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