2,682 results match your criteria cements greater


Alteration of Fractured Foamed Cement Exposed to CO-Saturated Water: Implications for Well Integrity.

Environ Sci Technol 2021 Sep 23. Epub 2021 Sep 23.

National Energy Technology Laboratory, Pittsburgh, Pennsylvania 15236, United States.

Geologic CO storage (GCS) is a method to mitigate the adverse impact of global climate change. Potential leakage of CO from fractured cement at the wellbore poses a risk to the feasibility of GCS. Foamed cement is widely applied in deepwater wells where fragile geologic formations cannot support the weight of conventional cement. Read More

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September 2021

Influence of the resin-coating technique on the bonding performance of self-adhesive resin cements in single-visit computer-aided design/computer-aided manufacturing resin restorations.

J Esthet Restor Dent 2021 Sep 20. Epub 2021 Sep 20.

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

Objective: This in vitro study investigated the influence of resin coating on the bonding performance of self-adhesive resin cements in single-visit computer-aided design (CAD)/computer-aided manufacturing (CAM) resin restorations.

Materials And Method: CAD/CAM resin (1.5-mm thick) was mounted on 20 noncoated and 20 resin-coated human dentin surfaces using dual-cured self-adhesive resin cements (Panavia SA Cement Plus or Panavia SA Cement Universal, Kuraray Noritake Dental) in either self-curing or dual-curing mode. Read More

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September 2021

Ten-Year Survivorship and Risk of Periprosthetic Fracture of a Cementless Tapered Stem.

Orthop Clin North Am 2021 Oct 29;52(4):317-321. Epub 2021 Jul 29.

Department of Orthopaedic Surgery, University of Nebraska Medical Center, 985640 Nebraska Medical Center, Omaha, NE 68198, USA.

This article is a retrospective review of a consecutive series of 401 primary total hip arthroplasties with the use of cementless, ream and broach Synergy stem (Smith & Nephew, Memphis, TN, USA) with minimal 10-year follow-up. We report an overall 10-year survivorship of 99.6% with a total of 15 fractures during the study period. Read More

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October 2021

Evaluation of Adhesive Bond Strength, and the Sustained Release of Fluoride by Chitosan-infused Resin-modified Glass Ionomer Cement: An Study.

Int J Clin Pediatr Dent 2021 Mar-Apr;14(2):254-257

Department of Pediatric and Preventive Dentistry, Bharati Vidyapeeth Dental College and Hospital, Pune, Maharashtra, India.

Aim And Objective: To evaluate the adhesive bond strength, and sustained release of fluoride in chitosan (CH)-infused RMGIC.

Materials And Methods: Twenty caries-free human permanent premolar teeth, extracted for orthodontic purposes, were cleaned and stored in thymol solution. The crown of each tooth was cut into two halves and RMGIC ( = 10) and CH-infused RMGIC ( = 10) was placed between the two halves of the crown. Read More

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Do high translucency zirconia shades contribute to the degree of conversion of dual-cure resin cements?

Quintessence Int 2021 Aug 19;0(0). Epub 2021 Aug 19.

Objective: The opacity of the zirconia ceramic restoration may influence the degree of conversion (%DC) of dual-cured resin cements. The aim of this study was to evaluate the degree of conversion of resin luting agents photocured under different high translucency zirconia shades. The opacity of each ceramic shade was evaluated. Read More

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Impact of hybrid layer formation on the 15-year survival, complications and failures of full-coverage retainers.

J Prosthodont Res 2021 Jul 29. Epub 2021 Jul 29.

Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok.

Purpose: To compare the effect of 4-META/MMA-TBB resin, which can provide hybrid layer formation, and acid-base cements on survival, complications, and failure risks of full-coverage retainers evaluated for 15 years.

Methods: A total of 1,161 abutment teeth in 260 patients treated with at least one single crown or fixed partial denture were recalled for clinical examination. Survival was defined as not having undergone extraction of abutments or renewal of prostheses. Read More

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Comparing Techniques for Removing Fiber Endodontic Posts: A Systematic Review.

J Contemp Dent Pract 2021 May 1;22(5):587-595. Epub 2021 May 1.

Department of Endodontics, Laboratory of Experimental Culture Cell (LECCel), Faculty of Dentistry, Universidade Federal Fluminense, Niterói, RJ, Brazil, Phone: +55 21 999840270, e-mail:

Aim: This systematic review aimed to establish the available techniques for fiber post removal, pointing out where each method stands out evaluating its advantages, and where they fall short indicating the possible harmful effects.

Materials And Methods: This systematic review was registered in PROSPERO (CRD42020193799). A broad search of the electronic databases PubMed, Web of Science, Scopus, and Virtual Health Library was carried out before April 27, 2020, for studies about techniques for removing fiber posts luted with resin cements of endodontically treated teeth. Read More

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Methods to Clean Residual Resin Cement from Lithium-Disilicate Glass-Ceramic.

J Adhes Dent 2021 Jul;23(4):319-326

Purpose: To compare the effect of different methods of cleaning residual composite cement from the surface of lithium-disilicate glass-ceramic on its bond strength.

Materials And Methods: Blocks of lithium-silicate glass-ceramic (e.max CAD) were coated with composite cement. Read More

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Effect of Abutment Geometry and Luting Agents on the Vertical Marginal Discrepancy of Cast Copings on Implant Abutments: An In Vitro Study.

Int J Dent 2021 21;2021:9950972. Epub 2021 Jun 21.

Department of Medico Surgical Stomatology, Faculty of Dentistry, Universidad Nacional Mayor de San Marcos, Lima, Peru.

Aim: Vertical marginal discrepancy (VMD) influences the success of implant-supported restorations. However, there is little literature that has investigated the influence of geometry and cementing agent on changes in VMD of metal copings on implant abutments. The objective was to evaluate the effect of the geometry of the abutment and cementing agents on VMD. Read More

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Influence of bone cement distribution on outcomes following percutaneous vertebroplasty: a retrospective matched-cohort study.

J Int Med Res 2021 Jul;49(7):3000605211022287

Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.

Objective: To evaluate the influence of insufficient bone cement distribution on outcomes following percutaneous vertebroplasty (PVP).

Methods: This retrospective matched-cohort study included patients 50-90 years of age who had undergone PVP for single level vertebral compression fractures (VCFs) from February 2015 to December 2018. Insufficient (Group A)/sufficient (Group B) distribution of bone cement in the fracture area was assessed from pre- and post-operative computed tomography (CT) images. Read More

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Dual role of tannic acid and pyrogallol incorporated in plaster of Paris: Morphology modification and release for antimicrobial properties.

Mater Sci Eng C Mater Biol Appl 2021 Aug 27;127:112209. Epub 2021 May 27.

Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France; Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 1121, 11 rue Humann, 67085 Strasbourg Cedex, France. Electronic address:

The design of bioactive plasters is of major interest for the amelioration of dental and bone cements. In this article, a one pot and environmentally friendly strategy based on the addition of a cheap polyphenol-tannic acid (TA) or the main phenolic constituent of TA, namely pyrogallol (PY)- able to interact with calcium sulfate is proposed. Tannic acid and pyrogallol not only modify the morphology of the obtained plaster+TA/PY composites but a part of it is released and provides strong-up to twenty fold- antibacterial effect against Staphylococcus aureus. Read More

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Effect of Bonding Agent on Retention of Different Sealants: An in Vitro Study.

J Clin Pediatr Dent 2021 Jul;45(3):177-185

Objectives: To investigate the effect of Co-curing versus Staged-curing and No-bonding on retention of different resin-based sealants (RBS).

Study Design: For shear bond strength (SBS) and microleakage tests, 90 extracted premolars were divided equally into 3 groups (I, II, III). Each group was further subdivided equally into 3 subgroups (a, b, c). Read More

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Chemical interaction between 10-methacryloyloxydecyl dihydrogen phosphate and methacryloxypropyltrimethoxysilane in one-bottle dental primer and its effect on dentine bonding.

J Mech Behav Biomed Mater 2021 09 1;121:104610. Epub 2021 Jun 1.

Jiangsu Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, PR China.

In the present study, we investigated the chemical interaction between 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) and methacryloxypropyltrimethoxysilane (gamma-MPS) in one-bottle primer solutions and its effect on dentine bonding performance. Solutions containing 10 wt% 10-MDP and/or gamma-MPS at 0, 1, 5, 10, or 15 wt% were prepared, providing 10 experimental groups (labeled MDP/MPSxx or MPSxx, where MDP indicates the presence of 10 wt% MDP and xx is the wt% of gamma-MPS in the solution). Phosphoric-acid-etched dentine blocks were prepared from human molars and conditioned in the solutions before being used to build resin-dentine-bonded specimens, which were subsequently subjected to microtensile bond strength (μTBS) testing after 24-h or six-months water storage. Read More

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September 2021

Effect of Er:YAG laser radiation on pull-out fracture load of esthetic posts luted to root canal dentin with various resin cements.

Dent Res J (Isfahan) 2021 17;18:17. Epub 2021 Mar 17.

Student Research Committee, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.

Background: This study investigated the influence of erbium-doped: yttrium aluminum garnet (Er:YAG) laser on the pull-out fracture load of fiber-reinforced composite (FRC) posts luted to dentin with different resin cements.

Materials And Methods: In this experimental study, 90 premolars were endodontically treated. The post spaces were prepared, and the teeth were divided into three groups dependent on the cement applied for luting FRC posts: Group 1: An etch-and-rinse system, Group 2: A self-etch cement, and Group 3: A self-adhesive cement. Read More

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A novel vertebroplasty technique using a larger-diameter needle for thoracolumbar osteoporotic vertebral compression fracture.

Medicine (Baltimore) 2021 Jun;100(22):e26174

Department of Orthopedic Surgery, Chungnam National University Hospital, Chungnam National University School of Medicine.

Abstract: Percutaneous vertebroplasty (VP) and kyphoplasty (KP) are well-established minimally invasive surgical procedures for the treatment of osteoporotic vertebral compression fractures (OVCF). However, some drawbacks have been reported regarding these procedures, including height loss, cement leakage, and loss of the restored height after balloon deflation. We performed a novel VP technique to minimize these limitations of conventional procedures. Read More

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antimicrobial activity of mineral trioxide aggregate, Biodentine, and calcium-enriched mixture cement against , , and using the agar diffusion technique.

Dent Res J (Isfahan) 2021 23;18. Epub 2021 Feb 23.

Department of Basic Medical Sciences, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran.

Background: This study assessed the antimicrobial activity of Biodentine, mineral trioxide aggregate (MTA), and calcium-enriched mixture (CEM) cement against , , and .

Materials And Methods: In this study, microbial suspensions were inoculated onto agar plates. The antimicrobial effects of MTA, Biodentine and CEM cement were assessed against , , and by the agar diffusion test. Read More

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February 2021

In vitro evaluation of the influence of titanium nitride coating on the retention force between components of two-part abutments.

BMC Oral Health 2021 06 2;21(1):285. Epub 2021 Jun 2.

, Lilienthaler Heerstr. 261, 28357, Bremen, Germany.

Background: Two-part abutments are typically made up of a base composed of titanium and a ceramic build-up. The long-term outcomes are affected by the mechanical durability. The purpose of the present investigation was to evaluate and compare the retention force of two-part abutment systems with titanium or titanium nitride bases-as fixed with zirconia components and with various surface treatments. Read More

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Biocompatibility and Antibiofilm Properties of Calcium Silicate-Based Cements: An In Vitro Evaluation and Report of Two Clinical Cases.

Biology (Basel) 2021 May 26;10(6). Epub 2021 May 26.

Department of Oral and Maxillofacial Science, Sapienza University of Rome, Via Caserta 6, 00161 Rome, Italy.

Calcium silicate-based cements have reached excellent levels of performance in endodontics, providing predictable and successful results. To better assess the properties of these bioactive materials, the present study aimed to compare the biocompatibility and antibiofilm properties of ProRoot MTA and Biodentine. Human osteogenic sarcoma (Saos-2) cells were cultured on ProRoot MTA and Biodentine samples or in the presence of both cement extracts. Read More

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Durability of Blended Cements Made with Reactive Aggregates.

Materials (Basel) 2021 May 29;14(11). Epub 2021 May 29.

The Eduardo Torroja Institute for Construction Science (Spanish National Research Council, CSIC), C/Serrano Galvache, 4, 28033 Madrid, Spain.

Alkali-silica reaction (ASR) is a swelling reaction that occurs in concrete structures over time between the reactive amorphous siliceous aggregate particles and the hydroxyl ions of the hardened concrete pore solution. The aim of this paper is to assess the effect of pozzolanic Portland cements on the alkali-silica reaction (ASR) evaluated from two different points of view: (i) alkali-silica reaction (ASR) abatement and (ii) climatic change mitigation by clinker reduction, i.e. Read More

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Shear Bond Strength of Composite Cement to Lithium-Disilicate Glass-coated Zirconia Versus Alumina Air-abraded Zirconia.

J Adhes Dent 2021 Jun;23(3):267-275

Purpose: To compare the shear bond strength of composite cement to lithium-disilicate glass-ceramic coated zirconia vs to alumina air-abraded zirconia and to analyze the residual stresses on both of lithium-disilicate glass-ceramic coated zirconia vs alumina air-abraded zirconia specimens.

Materials And Methods: One hundred eighty zirconia disks (diameters 10 mm and 5 mm, 4.5 mm thick) were divided into two groups: lithium-disilicate glass-ceramic coating followed by hydrofluoric acid etching and Monobond N Primer (LiDi) or alumina air-abrasion (AA). Read More

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A randomized controlled study on color stability of tetracycline teeth restored with ceramic veneer.

Hua Xi Kou Qiang Yi Xue Za Zhi 2021 Jun;39(3):336-340

Dept. of Prosthodontics, Shanghai Ninth People,s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China.

Objectives: This study aimed to evaluate the color stability of tetracycline teeth restored with ceramic veneers of different thicknesses combined with different resin cement systems after aging.

Methods: Twenty patients with tetracycline teeth, including two maxillary central incisors, were selected clinically. The patients were randomly divided into four groups and restored with 0. Read More

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Surface treatments on CAD/CAM glass-ceramics: Influence on roughness, topography, and bond strength.

J Esthet Restor Dent 2021 07 15;33(5):739-749. Epub 2021 May 15.

Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil.

Objective: To evaluate the influence of surface treatment on roughness (SA), topography, and shear bond strength (SBS) of computer-aided designer and manufacture (CAD/CAM) zirconia-reinforced lithium silicate (ZLS) and feldspathic (FEL) glass-ceramics.

Materials And Methods: FEL and ZLS specimens were submitted to 5% or 10% hydrofluoric acid (HF) or self-etching ceramic primer (MEP) and different application times (20, 40, and 60 s), or to sandblasting (Control, 20 s). Resin cement cylinders were bonded to the specimens and tested in shear (n = 10) after 24 h and 16-months of water storage. Read More

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Tooth Discoloration Induced by Different Calcium Silicate-Based Cements: A Two-Year Spectrophotometric and Photographic Evaluation in Vitro.

J Clin Pediatr Dent 2021 Apr;45(2):112-116

Objective: Calcium silicate-based cements (CSCs) may lead to coronal staining in young permanent teeth over the time. The purpose of this study was to evaluate and compare the long-term tooth discoloration induced by different CSCs.

Study Design: Ninety freshly-extracted human molars were assigned randomly into 6 groups (n=15/group) according to the CSC used as a pulpotomy material: ProRoot MTA, MTA Angelus, NeoMTA, EndoSequence Putty, Biodentine and Negative control (No cement). Read More

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Effect of phosphorylated chitosan and carbodiimide biomodification on the chemical composition of eroded dentin.

Am J Dent 2021 Apr;34(2):105-109

Department of Restorative Dentistry, São Paulo University, Ribeirão Preto, SP, Brazil,

Purpose: To evaluate the chemical composition and morphological properties of eroded dentin after biomodification with phosphorylated chitosan (P-Chi) and carbodiimide (EDC).

Methods: 42 bovine dentin specimens were used; 21 of these specimens were subjected to erosive challenge with 0.3% citric acid (pH = 3. Read More

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

J Mech Behav Biomed Mater 2021 08 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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Tooth discoloration induced by the different phases of a calcium aluminate cement: One-year assessment.

J Esthet Restor Dent 2021 Apr 30. Epub 2021 Apr 30.

Department of Dentistry, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Brazil.

Objectives: To assess the discoloration of teeth treated with the different phases of calcium aluminate cement (CAC), in comparison with the conventional CAC and mineral trioxide aggregate (MTA).

Materials And Methods: Fifty bovine incisors were prepared and filled. Two millimeters of the filling was removed to fabricate a cervical plug with the following cements (n=10): CA(CaO. Read More

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Effect of Different Dimensions of Test Samples on the Volumetric Change Assessment Of Endodontic Materials.

Braz Dent J 2021 Jan-Feb;32(1):42-47

Department of Restorative Dentistry, School of Dentistry, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil.

New methodologies using micro-CT to evaluate solubility besides dimensional and morphological changes of endodontic materials are proposed. However, there is no standardization in the methods. The aim of this study was to assess the effect of different dimensions of test samples on volumetric change evaluation of different endodontic materials. Read More

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Evaluation of the effects of two different indirect bonding methods on strength of the brackets in mandibular model of severe anterior crowding.

Microsc Res Tech 2021 Jun 29;84(6):1181-1191. Epub 2021 Apr 29.

Department of Orthodontics, Ankara Yıldırım Beyazit University Faculty of Dentistry, Ankara, Turkey.

An indirect bonding method was developed to solve the problems likely to be encountered during proper positioning of the brackets. The aim of this study is to compare two different indirect bonding methods on the bond strength of the brackets. A 160 extracted human lower incisors were assigned into two groups. Read More

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Customized fiber posts in root canals prepared with and without laser application: a pull-out evaluation.

Gen Dent 2021 May-Jun;69(3):52-56

This study evaluated the effect of fiber post customization and laser application on the results of pull-out tests in endodontically treated teeth. Forty-eight bovine incisors were stored in aqueous 2% formaldehyde (pH 7.0) for 30 days. Read More

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Bonding to zirconia: Effects of translucency and cusp inclinations using an experimental methodology.

J Prosthodont Res 2021 Aug 23;65(3):298-302. Epub 2021 Apr 23.

School and Hospital of Stomatology, Fujian Medical University; Fujian Key Laboratory of Oral Diseases, Fujian Province, P. R. China.

Purpose To investigate the effects of translucency and cusp inclination on the micro-shear bond strength (µSBS) of zirconia to self-adhesive resin cement (SARC).Methods Sixty U-shaped zirconia specimens with 1.0 mm thickness consisting of three planes (0°, 20°, and 30°) simulating different cusp inclinations were fabricated from zirconia blocks of high, moderate, and low translucency (n=20). Read More

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