465 results match your criteria cement evaluations

Bioactive glass S53P4 to fill-up large cavitary bone defect after acute and chronic osteomyelitis treated with antibiotic-loaded cement beads: A prospective case series with a minimum 2-year follow-up.

Injury 2021 Jun 1. Epub 2021 Jun 1.

Trauma Service, Instituto de Ortopedia e Traumatologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil.

Introduction: Bioactive glass S53P4 (BAG-S53P4) has been used in the treatment of osteomyelitis with excellent results. The aim of this study was to evaluate the clinical and radiographic results of patients treated with use of antibiotic-loaded cement beads, followed by bone defects filling using bioglass.

Methods: We treated a prospective series of patients presenting with acute or chronic osteomyelitis of a long bone of the upper or lower limb. Read More

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Experimental methodologies to evaluate the masking ability of dental materials: A systematic review.

J Esthet Restor Dent 2021 Jun 4. Epub 2021 Jun 4.

Postgraduate Program in Dentistry, Dental School, University of Passo Fundo, Passo Fundo, Rio Grande do Sul, Brazil.

Objective: To conduct a systematic review on the masking ability of discolored substrates, analyzing the capacity and quality of the response produced by the different methodologies and techniques applied to overcome this clinical challenge.

Materials And Methods: The study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. The electronic search was conducted in MEDLINE/PubMed, Scopus and Web of Science databases, without date restriction. 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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OPF/PMMA cage system as an alternative approach for the treatment of vertebral corpectomy.

Appl Sci (Basel) 2020 Oct 2;10(19). Epub 2020 Oct 2.

Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA.

The spinal column is the most common site for bone metastasis. Vertebral metastases with instability have historically been treated with corpectomy of the affected vertebral body and adjacent intervertebral discs, and are more recently treated with separation surgery. With demographics shifting towards an elderly population, a less invasive surgical approach is necessary for the repair of vertebral defects. Read More

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October 2020

Tooth Discoloration Using Calcium Silicate-Based Cements For Simulated Revascularization in Vitro.

Braz Dent J 2021 Jan-Feb;32(1):53-58

Postgraduate Program in Dentistry, School of Dentistry, University of Taubaté, Taubaté, Brazil.

The endodontic revascularization may be an alternative treatment for necrotic immature teeth, however, several treatment steps may cause tooth discoloration. This study evaluated the use of three calcium silicate-based cements with different radiopacifying agents on the color alteration (∆E) of extracted premolars after simulation of revascularization. Forty single rooted extracted premolars were shaped with #1-6 gates Glidden drills, rinsed with sodium hypochlorite, and filled with fresh human blood. Read More

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Clinical evaluation of monolithic zirconia multiunit posterior fixed dental prostheses.

J Prosthet Dent 2021 Apr 23. Epub 2021 Apr 23.

Assistant Professor, Department of Prosthodontics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.

Statement Of Problem: Monolithic zirconia restorations have been evaluated with in vitro studies, but limited clinical evidence of their longevity and reliability is available.

Purpose: The purpose of this clinical study was to evaluate the clinical performance of posterior multiunit glazed monolithic zirconia fixed dental prostheses.

Material And Methods: A total of 20 participants received 33 monolithic posterior zirconia fixed dental prostheses (Zolid white; Amann Girrbach AG) with minimally invasive preparations. Read More

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Translucent Zirconium Dioxide and Lithium Disilicate: A 3-Year Follow-up of a Prospective, Practice-Based Randomized Controlled Trial on Posterior Monolithic Crowns.

Int J Prosthodont 2021 Mar-Apr;34(2):163-172

Purpose: To systematically evaluate and compare the clinical performance of lithium disilicate (LDS)- and zirconium dioxide (ZrO)-based ceramic monolithic crowns in the posterior dentition.

Materials And Methods: Treatment was administered by two experienced general dental practitioners in two public dental health care clinics. Forty-four patients received 60 crowns randomized to be either LDS or ZrO and cemented with resin cement. Read More

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Effectiveness and reliability of cannulated fenestrated screws augmented with polymethylmethacrylate cement in the surgical treatment of osteoporotic vertebral fractures.

J Craniovertebr Junction Spine 2021 Jan-Mar;12(1):33-37. Epub 2021 Mar 4.

Department of Orthopaedic and Traumatology, Orthopaedic and Trauma Centre, Spine Surgery Unit, Città della Salute e della Scienza di Torino, Turin, Italy.

Background: Implants' stability, especially in osteoporosis patients, is a challenging matter. Nowadays, the adoption of cannulated fenestrated screws augmented with polymethylmethacrylate cement (PMMA CSF) is described by some authors. This single-center, retrospective observational study aims to evaluate the long-term effectiveness, reliability, and mechanical performances of this type of screws in osteoporotic fractures. Read More

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External fixation with bone cement implantation for open calcaneal fractures: A case series.

Foot Ankle Surg 2021 Mar 31. Epub 2021 Mar 31.

Department of Orthopaedics, Drum Tower Hospital, Medical School of Nanjing University, No. 321 Zhongshan Road, Nanjing, China.

Objective: The purpose of this study was to retrospectively evaluate patients who had open reduction, external fixation and bone cement implantation of open calcaneal fractures.

Methods: The records of 14 patients with open calcaneus fractures from January 2015 to January 2019 were reviewed retrospectively. Clinical evaluations consisting of AOFAS, MFS and EQ-5D VAS scores and radiological evaluations consisting of the height, width and length of the calcaneus as well as Bohler's and Gissane angle performed at 3 months, 1 year and the last follow-up postoperatively. Read More

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Radiological Evaluation of Stainless Steel Crowns Placed on Permanent Teeth in Patients Treated under General Anaesthesia.

Int J Environ Res Public Health 2021 03 3;18(5). Epub 2021 Mar 3.

CROC, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France.

Evidence-based evaluations of dental treatment are needed to support the development of special care dentistry services. This retrospective study was designed to collect and analyse X-ray images of permanent teeth restored with stainless steel crowns (SSC) in patients treated under general anaesthesia. Between 2013 and 2019, 360 permanent molars were crowned with SSCs in 198 adult patients. Read More

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The effects of chitosan addition to glass ionomer cement on microhardness and surface roughness.

J Appl Biomater Funct Mater 2021 Jan-Dec;19:2280800021989706

Department of Pediatric Dentistry, Faculty of Dentistry, Cukurova University, Adana, Turkey.

Objective: The aim of this study was to investigate the surface microhardness and roughness properties of a modified glass ionomer cement formed by adding different ratios of Chitosan, when exposed to saliva and acid erosive gastric acid cycle environments.

Methods: Chitosan was added to conventional glass ionomer liquid at volumes of 5% and 10%. The chitosan-modified glass ionomer was used for the experimental group, and traditional glass ionomer formed the control group. Read More

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The effect of different surface preparation methods and various aging periods on microtensile bond strength for composite resin repair.

Niger J Clin Pract 2021 Feb;24(2):282-291

Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Ankara, Turkey.

Aims: To evaluate the effect of various aging periods and different surface preparation methods on microtensile bond strength (μTBS) for composite repair.

Materials And Methods: One hundred twelve composite resin blocks were formed using a nanohybrid composite resin. The samples were distributed into four groups according to surface preparation methods (n = 28): control (sound composite blocks); Er, Cr: YSGG laser; air abrasion; silicone carbide. Read More

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February 2021

Characterization and Evaluations of Injectable Calcium Phosphate Cement Doped with Magnesium and Strontium.

ACS Omega 2021 Feb 20;6(4):2477-2486. Epub 2021 Jan 20.

Department of Biosciences, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore 632014, India.

Injectable calcium phosphate cement is a promising biomaterial for hard tissue repair due to its osteoinductivity, biocompatibility properties, and its use to correct defect areas involving narrow cavities with limited accessibility by the minimally invasive technique. Microwave-synthesized hydroxyapatite (HA) was used for the preparation of cement. In recent years, both magnesium and strontium calcium phosphate cements have exhibited rapid setting, improved mechanical strength, and a good resorption rate. Read More

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February 2021

Open cell polyurethane foam compression failure characterization and its relationship to morphometry.

Mater Sci Eng C Mater Biol Appl 2021 Jan 27;120:111754. Epub 2020 Nov 27.

Centre of Research in Mechanical Engineering - CIIM, Dept. of Mechanical Engineering and Materials, Universitat Politècnica de València, Camino de Vera, 46022 Valencia, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Politècnica de València, Camino de Vera, 46022 Valencia, Spain.

Open cell polyurethane foams are often used as cancellous bone surrogates because of their similarities in morphology and mechanical response. In this work, open cell polyurethane foams of three different densities are characterized from morphometric and mechanical perspectives. The analysis of micro-computed tomography images has revealed that the high density foams present the greatest inhomogeneities. Read More

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January 2021

Treatment of multiple myeloma-related bone disease: recommendations from the Bone Working Group of the International Myeloma Working Group.

Lancet Oncol 2021 03 2;22(3):e119-e130. Epub 2021 Feb 2.

Center for Multiple Myeloma, Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA.

In this Policy Review, the Bone Working Group of the International Myeloma Working Group updates its clinical practice recommendations for the management of multiple myeloma-related bone disease. After assessing the available literature and grading recommendations using the Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) method, experts from the working group recommend zoledronic acid as the preferred bone-targeted agent for patients with newly diagnosed multiple myeloma, with or without multiple myeloma-related bone disease. Once patients achieve a very good partial response or better, after receiving monthly zoledronic acid for at least 12 months, the treating physician can consider decreasing the frequency of or discontinuing zoledronic acid treatment. Read More

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Is There an Association Between Clinical and SEM Quantitative Marginal Analysis in a 90-month Trial?

J Adhes Dent 2021 ;23(1):37-46

Purpose: To assess possible correlations between clinical outcomes and SEM marginal analysis in a prospective long-term clinical study using two adhesives in incisors and canines.

Materials And Methods: Thirty-five patients received class III and IV restorations with two different adhesives, either the one-step self-etch adhesive iBond Gluma inside (1-SE) or the two-step etch-and-rinse adhesive Gluma Comfort Bond (2-ER) combined with the fine particle hybrid composite Venus. The restorations were clinically evaluated (modified USPHS criteria) over 90 months. Read More

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February 2021

Guided bone tissue regeneration using a hollow calcium phosphate based implant in a critical size rabbit radius defect.

Biomed Mater 2021 Jan 21. Epub 2021 Jan 21.

Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, SWEDEN.

Long bone fractures are common and sometimes difficult to treat. Autologous bone (AB), bovine bone and calcium phosphates are used to stimulate bone growth with varying results. In the present study, a calcium phosphate cement (CPC) that previously showed promising grafting capabilities was evaluated for the first time in a long bone defect. Read More

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January 2021

Atraumatic Restorative Treatment-Sealed versus Nonsealed First Permanent Molars: A 3-Year Split-Mouth Clinical Trial.

Caries Res 2021 16;55(1):12-20. Epub 2020 Dec 16.

Department of Pediatric Dentistry, Academic Center for Dentistry Amsterdam, Amsterdam, The Netherlands.

To investigate the efficacy of atraumatic restorative treatment (ART) sealants vs. no sealant in preventing the development of dentine caries lesions in first permanent molars over a period of 3 years. A total of 187 schoolchildren (aged 6-8 years) from a low-income population presenting the 4 first permanent molars without clinically detectable dentine caries lesions were selected to be part of a split-mouth clinical trial. Read More

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Effect of screw access channel on the fracture rate of lithium disilicate cement-retained implant-supported posterior crowns.

J Prosthet Dent 2020 Dec 9. Epub 2020 Dec 9.

Demonstrator of Fixed Prosthodontics, Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.

Statement Of Problem: Whether the presence of a screw access channel on the occlusal surface of a lithium disilicate cement-retained single tooth implant restoration reduces its fracture rate is unclear.

Purpose: The purpose of this randomized controlled clinical trial was to compare the fracture rate of lithium disilicate cement-retained posterior single tooth implant restorations with or without screw access channels. The study also evaluated whether the crown dimensions and location of the occlusal screw access channel would affect the fracture rate. Read More

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December 2020

Feasibility of Controlling Metastatic Osseous Pain Using Three Kinds of Image-Guided Procedures for Thermal Microwave Ablation: A Retrospective Study.

Orthop Surg 2021 Feb 10;13(1):116-125. Epub 2020 Dec 10.

The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.

Objectives: To evaluate the feasibility and safety of treating painful osseous metastases using image-guided percutaneous thermal microwave ablation.

Methods: This is a retrospective study of patients treated from December 2016 to December 2019 in one institute. A total of 50 patients (35 men, 15 women; mean age 55. Read More

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February 2021

Evaluation of marginal sealing quality of restorations with low shrinkage composite resins.

J Clin Exp Dent 2020 Dec 1;12(12):e1100-e1108. Epub 2020 Dec 1.

PhD, Associate teacher - UFPE - Federal University of Pernambuco, Department of Prosthetic Dentistry and Maxillofacial Surgery, 1235 Professor Moraes Rego Ave, Recife, PE, 50670901, Brazil.

Background: This study compared the quality of marginal sealing in the gingival wall of class II preparations of two low-shirinkage resins of the bulk fill type with a conventional resin isolated or associated with a glass ionomer cement (GIC).

Material And Methods: 40 human molars were divided into 4 groups and 80 occlusal-mesial and occlusal-distal restorations were performed with the following materials: SureFil SDR flow, Filtek Bulk Fill Posterior, Z250 resins and Riva Light Cure GIC. 40 restorations were evaluated in Scanning Electron Microscopy (SEM) with Elemental Microanalysis Spectrometry (EDS) initially and the remainder after a period of 6 months of aging in a 37 ± 5°C oven. Read More

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December 2020

In vitro and In vivo evaluation of resin composites fluorescence.

J Mech Behav Biomed Mater 2021 02 27;114:104223. Epub 2020 Nov 27.

Dentistry Course at the State University of Western Paraná - UNIOESTE, Brazil. Electronic address:

This study aimed at comparatively evaluate, by visual method, the fluorescence intensity in vitro and in vivo of six resins composed of different classifications and viscosities compared to natural enamel. For the in vitro study, seventy specimens were prepared and for the in vivo study, a restoration was performed on the cervical portion of the buccal face of 6 anterior maxillary teeth, which under ultraviolet light were compared to the dental structure. The specimens and restorations were photographed only under the illumination of an ultraviolet lamp. Read More

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February 2021

Improving Evaluation of Energy Policies with Multiple Goals: Comparing Ex Ante and Ex Post Approaches.

Environ Sci Technol 2020 12 2;54(24):15584-15593. Epub 2020 Dec 2.

Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.

Sustainability policies are often motivated by the potential to achieve multiple goals, such as simultaneously mitigating the climate change and air quality impacts of energy use. Ex ante analysis is used prospectively to inform policy decisions by estimating a policy's impact on multiple objectives. In contrast, ex post analysis of impacts that may have multiple causes can retrospectively evaluate the effectiveness of policies. Read More

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December 2020

Impact of the polycarbonate strippers used in assisted reproduction techniques on embryonic development.

Hum Reprod 2021 01;36(2):331-339

Department of Reproductive Medicine, Toulouse University Hospital, Toulouse, France.

Study Question: Do daily manipulations of preimplantation embryos with polycarbonate (PC)-made bisphenol A (BPA)-releasing strippers influence embryo development?

Summary Answer: Compared to glass strippers, PC strippers enhance the blastocyst development rate but this does not seem to be BPA-related.

What Is Known Already: PC strippers have been shown to release tiny amounts (around 0.5 ng/ml BPA) of BPA in routine human IVF procedures. Read More

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January 2021

Effect of the application of different concentrations of EDTA on the adhesion of fiber posts using self-adhesive cements.

Braz Oral Res 2020 23;35:e012. Epub 2020 Nov 23.

Universidade Estadual de Ponta Grossa - UEPG, School of Dentistry, Department of Restorative Dentistry, Ponta Grossa, PR, Brazil.

The purpose of this study was to analyze the effect of the application of different concentrations of EDTA on the adhesion of fiber posts to root dentin using self-adhesive resin cements. After endodontic treatment, 78 single roots were randomly divided into six groups (n = 13) according to the combination of the following factors: surface dentin treatment - control (distilled water), 17% EDTA and 24% EDTA; and self-adhesive resin cement - RelyX U200 (RX); and Multilink Speed (ML). After fiber post cementation, six slices were obtained for each root. Read More

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January 2021

Long-term clinical and radiographic evaluation of the effectiveness of direct pulp capping materials: A meta-analysis.

Dent Mater J 2021 Jan 1;40(1):1-7. Epub 2020 Oct 1.

Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences.

The aim of this review is to evaluate the long-term effectiveness of calcium silicate-based cement (CS) and calcium hydroxide (CH) for direct pulp capping (DPC) to human pulp-exposed permanent teeth. An electronic search and manual search were performed on 21 June 2019. Long-term clinical and radiographic evaluations of the effectiveness of CS and CH for DPC to human pulp-exposed teeth were included, and data extraction, risk-of-bias assessment and meta-analyses were performed. Read More

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January 2021

Enhancing effects of radiopaque agent BaSO on mechanical and biocompatibility properties of injectable calcium phosphate composite cement.

Mater Sci Eng C Mater Biol Appl 2020 Nov 28;116:110904. Epub 2020 Mar 28.

Institute of Orthopaedics and Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu 215006, PR China; Center for Health Science and Engineering (CHSE), School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China. Electronic address:

Kyphoplasty is an effective minimally invasive surgical treatment of osteoporotic vertebral compression fractures. Current problems associated with kyphoplasty require better injectable bone cements with improved biodegradability and osseointegrative property as an alternative to polymethyl methacrylate (PMMA) bone cement. Calcium phosphate cements (CPCs) possess superior biodegradability and osteoconductivity but inferior injectability and mechanical strengths, rendering them unsuitable for kyphoplasty applications. Read More

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November 2020

Color Stability of Glass Ionomer Cement after Reinforced with Two Different Nanoparticles.

Int J Dent 2020 31;2020:7808535. Epub 2020 May 31.

College of Allied Medical Sciences, King Saud Univeristy, Riyadh, Saudi Arabia.

Aim: This study aimed to compare the staining characteristics of a commercially available restorative glass ionomer cement to a formulation reinforced by the addition of carbon nanotubes and another formulation reinforced by the addition of silver nanoparticles to the powder of the same cement. . Twenty samples each of a control glass ionomer cement (PULPDENT® Glass Fill®, Pulpdent Corp. Read More

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Malignant asbestos-related disease in a population exposed to asbestos.

Am J Ind Med 2020 09 9;63(9):796-802. Epub 2020 Jun 9.

Department of Basic Clinical Practice, University of Barcelona, Catalonia, Spain.

Objectives: The first asbestos fiber cement plant in Spain operated in Cerdanyola, in the Barcelona metropolitan area, between 1907 and 1997. We describe clinical and epidemiological characteristics of patients diagnosed with the malignant asbestos-related disease (ARD) in the area of the plant between 2007 and 2016.

Methods: A prospective, descriptive study was undertaken in the 12 municipalities of the county of Barcelona most proximate to the plant. Read More

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September 2020

Evaluation of the properties of Mineral Trioxide Aggregate mixed with Zinc Oxide exposed to different environmental conditions.

Bioact Mater 2020 Sep 18;5(3):516-521. Epub 2020 Apr 18.

Department of Dental Materials, School of Dentistry, Tehran University of Medical Science, Tehran, Iran.

Addition of zinc oxide (ZnO) to Mineral Trioxide Aggregate (MTA) has been shown to rectify tooth discoloration caused by Angelus MTA. This study evaluated the microhardness, compressive strength, calcium ion release and crystalline structures of MTA mixed with ZnO in different environmental conditions. Molds with a diameter of 4 mm and a height of 6 mm were used for compressive strength, calcium ion release and X-ray diffraction (XRD) evaluations. Read More

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September 2020