1,715 results match your criteria Brazilian dental journal[Journal]


Oral Mucositis in Pediatric Oncology Patients: A Nested Case-Control to a Prospective Cohort.

Braz Dent J 2020 Jan-Feb;31(1):78-88

Department of Clinic and Social Dentistry, Universidade Federal da Paraíba, João Pessoa, Brazil.

This study aimed to evaluate the factors associated with the occurrence of severe oral mucositis (SOM) in pediatric oncology patients during the chemotherapeutic treatment. This is a nested case-control to a prospective cohort that monitored 105 patients for 10 consecutive weeks after the beginning of the chemotherapy treatment. Logistic regression was used to identify the factors associated with SOM, by group of malignancy (hematologic or solid tumors) (Sig. Read More

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http://dx.doi.org/10.1590/0103-6440201802881DOI Listing

Color Stability of Ceramic Veneers Luted With Resin Cements and Pre-Heated Composites: 12 Months Follow-Up.

Braz Dent J 2020 Jan-Feb;31(1):69-77

School of Health Sciences, Graduate Program of Dentistry, UP - Universidade Positivo, Curitiba, PR, Brazil.

The objective was to evaluate the color stability of ceramic veneers luted with resin cements and pre-heated composite resins (60oC) for 12 months, and determine the degree of conversion (DC) of the luting agents. Two resin cements (AllCem Veneer, light-cured (LRC) and AllCem, dual-cured (DRC)] and three composite resins [Z100 (MNCR-minifilled), Herculite Classic (MHCR-micro-hybrid) and Durafill (MCCR-microfilled)] were used for cementing 0.8-mm-thick lithium-silicate glass-ceramic laminates (Suprinity, shade B2-HT, Vita) on bovine enamel (n=10). Read More

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http://dx.doi.org/10.1590/0103-6440202002842DOI Listing

Association between Genetic Polymorphisms in RANK, RANKL and OPG and Peri-Implant Diseases in Patients from the Amazon Region.

Braz Dent J 2020 Jan-Feb;31(1):63-68

Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.

The present study evaluated polymorphisms in RANK, RANKL and OPG-encoding genes to assess whether they are associated with mucositis and peri-implantitis in a population from the Brazilian Amazon region. One hundred and fourteen patients with dental implants were included in the study. After clinical and radiographic examination, the sample was categorized into 4 groups, according to the peri-implant status: Healthy (n=71), Mucositis (n=30), Peri-implantitis (n=13) and Diseased (Mucositis + Peri-implantitis, n=43). Read More

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http://dx.doi.org/10.1590/0103-6440202003002DOI Listing

The Effect of Cigarette Smoking And Low-Level Laser Irradiation in RANK/RANKL/OPG Expression.

Braz Dent J 2020 Jan-Feb;31(1):57-62

Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.

The objective of this study was to investigate the effects of low-level laser therapy (LLLT) and cigarette smoke on alveolar socket osteoclastogenesis signaling after tooth extraction, in rats. Sixty male Wistar rats were randomly assigned to four groups with 15 animals each: Control Group (with right maxillary molar extraction - ME), Experimental I (with ME and LLLT), Experimental II (with ME and cigarette smoke) and Experimental III group (with ME, LLLT and cigarette smoke). Euthanasia was performed at 3, 7 and 14 days postoperative. Read More

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http://dx.doi.org/10.1590/0103-6440202002519DOI Listing

Light Activation and Thermocycling Methods on the Shear Bond Strength of Brackets Bonded to Porcelain Surfaces.

Braz Dent J 2020 Jan-Feb;31(1):52-56

Departament of Orthodontics, Centro Universitário da Fundação Hermínio Ometto -FHO, Araras, SP, Brazil.

The present study was evaluated the effect of different light activation and thermocycling methods on the shear bond strength (SBS) and on the adhesive remnant index (ARI) of metal brackets bonded to feldspathic ceramic. Hundred metal brackets were bonded to 20 porcelain cylinders, divided into four groups (n=25) based on light activation and thermocycling processes. The cylinders were etched with 10% hydrofluoric acid for 60 s and coated with two layers of silane. Read More

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http://dx.doi.org/10.1590/0103-6440202003101DOI Listing

Effect of Using Biomimetic Analogs on Dentin Remineralization with Bioactive Cements.

Braz Dent J 2020 Jan-Feb;31(1):44-51

Dental Biomaterials Dept, Faculty of Dentistry, Mansoura University, Egypt.

This study evaluated the impact of using biomimetic analogs (poly-acrylic acid and sodium tri-meta-phosphate) on dentin remineralization using two cement materials, the first is calcium silicate based and the second is calcium hydroxide based materials. Two standardized occlusal cavities (mesial and distal) were prepared within dentin after removal of occlusal enamel. Artificial demineralized dentin was induced through pH cycling (8 h in demineralizing and 16 h in remineralizing solutions). Read More

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http://dx.doi.org/10.1590/0103-6440202003083DOI Listing

Negative Pressure Irrigation Presents Mineralizing Potential in Dogs' Immature Teeth with Periapical Lesion.

Braz Dent J 2020 Jan-Feb;31(1):37-43

Department of Pediatric Dentistry, University of Washington and Private Practice Limited to Endodontics in Everett WA, USA.

The objective of this in vivo study was to assess the effect of the root canal irrigation by negative and positive apical pressure on the expression of molecules that are an indicative of cell differentiation with mineralizing phenotype in teeth of dogs with incomplete rhizogenesis and induced periapical lesion. A total of 30 teeth (60 roots) were distributed into 3 groups (n=20): EndoVac®, Conventional and Control. After 90 days, the routine histotechnical procedures were performed and the sections were submitted to immunohistochemical technique for the staining of osteopontin (OPN), alkaline phosphatase (ALP) and the RUNX2 transcription factor in the apical and periapical regions of the roots. Read More

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http://dx.doi.org/10.1590/0103-6440201802764DOI Listing

Cytotoxicity of Chelating Agents Used In Endodontics and Their Influence on MMPs of Cell Membranes.

Braz Dent J 2020 Jan-Feb;31(1):32-36

Department of Oral Sciences, UNIC - Universidade de Cuabá, Cuiaba, MT, Brazil.

This study evaluated the cytotoxic effect and the ability to inhibit matrix metalloproteinases (MMP-2 and MMP-9) of 0.2% chitosan (CH) and 1% acetic acid (AA) compared with 17% ethylenediaminetetraacetic acid (EDTA). Cell viability assay was performed according to ISO 10993-5 with mouse fibroblasts (L929). Read More

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http://dx.doi.org/10.1590/0103-6440202002812DOI Listing

The Contribution of the Brazilian Dental Journal to the Brazilian Scientific Research over 30 Years.

Braz Dent J 2020 Jan-Feb;31(1):3-9

Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.

The Brazilian Dental Journal (BDJ) was officially launched in 1990, stimulated by the courage and boldness of researchers dedicated to teaching and research in dentistry. The journal was conceived in a worldwide coverage and universal language to allow publication of the results of Brazilian studies, which otherwise would not be accessible to the scientific dental community. In the year we celebrate the thirtieth anniversary of BDJ, this article presents a brief overview of Brazilian dental research and a bibliometric analysis of the articles published in this journal as a contribution to our readers and fellow researchers. Read More

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http://dx.doi.org/10.1590/0103-6440202004551DOI Listing

Apical Displacement and Residual Root Canal Filling with Single-Cone After Post Space Preparation: A Micro-CT Analysis.

Braz Dent J 2020 Jan-Feb;31(1):25-31

Department of Endodontics, Dental School, Federal University of Uberlândia, UFU - Universidade Federal de Uberlândia, Uberlândia, MG, Brazil.

The purpose of this study was to evaluate the presence of residues after post space preparation (PSP) and establish whether the apical displacement of the gutta-percha was affected by the moments and methods of PSP in teeth filled by the single-cone technique. The root canals of 20 bovine incisor teeth were instrumented with Reciproc and filled with single-cone and AH Plus. The specimens were divided into 4 groups according to the moment and method of PSP (n=5): immediate with drill, immediate with thermoplasticizer, delayed with drill and delayed with thermoplasticizer. Read More

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http://dx.doi.org/10.1590/0103-6440202002597DOI Listing

Association between Estrogen, Vitamin D and Microrna17 Gene Polymorphisms and Periapical Lesions.

Braz Dent J 2020 Jan-Feb;31(1):19-24

School of Health Sciences, Graduate Program in Dentistry, UP - Universidade Positivo, Curitiba, PR, Brazil.

This study evaluated the association between polymorphisms in genes encoding estrogen receptors 1 (ESR1) and 2 (ESR2), vitamin D receptor (VDR) and in microRNA17 (which binds to ESR1 and VDR) with persistent apical periodontitis (PAP) after the endodontic treatment. We included 162 patients who completed endodontic treatment at least one year ago and presented apical periodontitis at the beginning of the root canal therapy. Clinical and radiographic exams were performed to evaluate the presence of PAP or healthy periradicular tissues (healed). Read More

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http://dx.doi.org/10.1590/0103-644020200DOI Listing

A Bibliometric Analysis of Articles Published in Brazilian Dental Journal over 30 years.

Braz Dent J 2020 Jan-Feb;31(1):10-18

School of Dentistry, UFPEL - Universidade Federal de Pelotas, Pelotas, RS, Brazil.

This study assessed bibliometric characteristics of all articles published in Brazilian Dental Journal (BDJ) in its 30 years of existence (1990-2019) and factors associated with citation rates. A document search was carried out in Scopus in December, 2019 and information about the articles were exported, including citations. Type of study and main subject in each article were categorized. Read More

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http://dx.doi.org/10.1590/0103-6440202004550DOI Listing

Probiotic Administration Increases Mandibular Bone Mineral Density on Rats Exposed to Cigarette Smoke Inhalation.

Braz Dent J 2019 Nov-Dec;30(6):634-640

Graduate Program in Dentistry, UNOESTE - Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil.

Smoking is one of the main risk factor for periodontal disease, increasing its prevalence and severity. Probiotics emerged as an alternative for the prevention and treatment of many diseases, since it can modulate the host immune response and modify the modify the microbiome. Therefore, the aim of the present study is to evaluate the effects of probiotic administration on the periodontal tissues in rats exposed to cigarette smoke inhalation (CSI). Read More

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http://dx.doi.org/10.1590/0103-6440201802862DOI Listing
December 2019

Oropharyngeal Squamous Cell Carcinoma: Human Papilloma Virus Coinfection with Streptococcus anginosus.

Braz Dent J 2019 Nov-Dec;30(6):626-633

Universidad de Caldas, Caldas, Colombia.

Introduction: Human papilloma virus (HPV) and oral bacteria capable of acetaldehyde production from ethanol, such as Streptococcus anginosus, Prevotella melaninogenica, and Fusobacterium naviforme are among oropharyngeal squamous cell carcinoma (OSCC) infectious risk factors.

Objective: Determine associations with HPV and S. anginosus, P. Read More

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http://dx.doi.org/10.1590/0103-6440201902805DOI Listing
December 2019

Distribution of Dendritic Cells in AIDS-Associated Oral Kaposi's Sarcoma.

Braz Dent J 2019 Nov-Dec;30(6):617-625

Department of Oral Diagnosis, UNICAMP - Universidade de Campinas, Piracicaba, SP, Brazil.

The aim of this study was to determine if the distribution of Langerhans cells (LC) and interstitial dendritic cells (IDC) is altered in AIDS-associated oral Kaposi's sarcoma when compared to HIV-negative highly vascular oral lesions. Fifty-one cases of AIDS-associated oral Kaposi's sarcoma and 20 of highly vascular oral lesions were retrospectively retrieved. All cases of Kaposi's sarcoma were confirmed with immunoreactions against CD34 and HHV-8. Read More

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http://dx.doi.org/10.1590/0103-6440201902599DOI Listing
December 2019

Effect of DLC Films with and without Silver Nanoparticles Deposited On Titanium Alloy.

Braz Dent J 2019 Nov-Dec;30(6):607-616

Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, UNESP - Universidade Estadual Paulista, São José dos Campos, SP, Brazil.

Diamond-like carbon (DLC) film is a biocompatible hard coating material that can prevent the leaching of metal ions. This study evaluates the structural characteristics of DLC, with and without silver nanoparticles, deposited by plasma (PECVD) on titanium alloy (Ti-6Al-4V) and bone formation in contact with DLC films. Sixty Ti-6Al-4V samples were used divided in: uncoated, coated with DLC and coated with DLC-Ag. Read More

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http://dx.doi.org/10.1590/0103-6440201902708DOI Listing
December 2019

Tissue Response after Subcutaneous Implantation of Different Glass Ionomer-Based Cements.

Braz Dent J 2019 Nov-Dec;30(6):599-606

Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.

The aim of this study was to evaluate the subcutaneous connective tissue response of isogenic mice after implantation of different glass ionomer-based cements (EQUIA® Forte Fil, EQUIA® Fil and Ketac™ Universal Aplicap™). Eighty-seven isogenic BALB/c mice were allocated in 12 groups, 9 were considered as experimental groups (Ketac, E. Fil and E. Read More

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http://dx.doi.org/10.1590/0103-6440201902619DOI Listing
December 2019

Influence of Modulated Photo-Activation on Shrinkage Stress and Degree of Conversion of Bulk-Fill Composites.

Braz Dent J 2019 Nov-Dec;30(6):592-598

Department of Operative Dentistry, Endodontics and Dental Materials, School of Dentistry, USP Universidade de São Paulo, SP, Brazil.

This study aimed to evaluate the polymerization properties of bulk-fill materials (low and high-viscosity) by using high-intensity continuous light and intermittent photo-activation in terms of polymerization shrinkage stress and degree of conversion (DC). The following Bulk-fill and Conventional nanofilled resin composites were evaluated: Filtek Z350XT Flow (3M/ESPE), SureFil SDR Flow (Dentsply), Filtek Bulk Fill Flow (3M/ESPE), Filtek Z350XT (3M/ESPE) and Filtek Bulk Fill Posterior (3M/ESPE). A LED device (DB 685, Dabi Atlante) was used for both protocols: continuous uniform and intermittent photo-activation (light-on and light-off cycles) with identical radiant exposure (14 J/cm2). Read More

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http://dx.doi.org/10.1590/0103-6440201902571DOI Listing
December 2019

Effect of Hydrofluoric Acid Concentration and Thermal Cycling on the Bond Strength of Brackets to Ceramic.

Braz Dent J 2019 Nov-Dec;30(6):587-591

Department of Restorative Dentistry, Dental Materials Division, Piracicaba Dental School, UNICAMP - Universidade Estadual de Campinas, Piracicaba, SP, Brazil.

This study to evaluate the effects of different hydrofluoric acid (HF) concentrations and thermal cycling on the shear bond strength (SBS) of brackets to ceramic. Cylinders of ceramic were divided into 10 groups (n=15), according to HF concentrations: 1-1%;2-2.5%;3-5%;4-7. Read More

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http://dx.doi.org/10.1590/0103-6440201902989DOI Listing
December 2019

Clinical and Microbiological Evaluation of Surgical and Nonsurgical Treatment of Aggressive Periodontitis.

Braz Dent J 2019 Nov-Dec;30(6):577-586

Department of Prosthodontics and Periodontics, Piracicaba Dental School, UNICAMP - Universidade Estadual de Campinas, Piracicaba, SP, Brazil.

The present study aimed to evaluate clinical and microbiological effects of surgical and nonsurgical periodontal therapy in generalized aggressive periodontitis (GAgP) treatment. Sixteen GAgP patients were included in this randomized split-mouth design clinical trial. Maxillary quadrants were allocated into two groups: Nonsurgical Therapy (NST) and Surgical Therapy (ST). Read More

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http://dx.doi.org/10.1590/0103-6440201902930DOI Listing
December 2019

Influence of a Retentive Shoulder Design to Prevent Early Failure of Three Core Build-Ups.

Braz Dent J 2019 Nov-Dec;30(6):569-576

School of Dentistry of Ribeirão Preto, Professor of Department of Dental Materials and Prosthodontics, Molecular Diagnosis Laboratory, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.

This study evaluated the influence of a retentive shoulder design to prevent early failure of three resin composite build-ups on molars. Ninety-six intact extracted human maxillary third molars were assigned to two groups (n=48) based on occlusal, buccal cusps only and all cusps reduction. The groups were divided into two subgroups: pin retained and non-pin retained build-ups resulting in four groups (n=24), according the cusps reduction: pin retained/partial, pin retained/complete, non-pin retained/partial, non-pin retained/complete. Read More

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http://dx.doi.org/10.1590/0103-6440201902874DOI Listing
December 2019

Physicochemical Properties and Bioactive Potential of a New Epoxy Resin-based Root Canal Sealer.

Braz Dent J 2019 Nov-Dec;30(6):563-568

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

The aim of this study was to evaluate physicochemical properties and bioactive potential of Sealer Plus, in comparison with MTA Fillapex, Sealapex and AH Plus. Setting time, flow, and radiopacity were evaluated based on ISO 6876 Standard. Flow was also assessed in area (mm²). Read More

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http://dx.doi.org/10.1590/0103-6440201802861DOI Listing
December 2019

Correlation between Bond Strength to Dentin and Sealers Penetration by Push-Out Test and CLSM Analysis.

Braz Dent J 2019 Nov-Dec;30(6):555-562

Department of Dentistry, Endodontics Division, Health Sciences Center, UFSC - Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil.

This study correlated the bond strength (BS) and dentin penetration of different sealers by push-out test and Confocal Laser Scanning Microscopy (CLSM) analysis. Forty-five root canals were prepared according to the crown-down technique and filled with gutta-percha associated to the following sealers (n=15): Endofill, AH Plus and MTA Fillapex. Five canals of each group were filled with the sealers added with 0. Read More

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http://dx.doi.org/10.1590/0103-6440201902766DOI Listing
December 2019

Analysis of Electronic Apex Locators in Human Teeth Diagnosed With Apical Periodontitis.

Braz Dent J 2019 Nov-Dec;30(6):550-554

Research Institute of Biomedical Sciences, CUCS, México.

Electronic apex locators (EAL) have been used to establish the working length (WL) in root canal treatment. In teeth diagnosed with apical periodontitis, resorption of tooth apical structures can lead to difficulties to obtain an appropriate WL. The aim was to compare the capacity of three EAL's (Root ZX II, Raypex 6 and Endo-Eze Quill) to locate the tip of the K-file between 0 to -0. Read More

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http://dx.doi.org/10.1590/0103-6440201902705DOI Listing
December 2019

Reparative Dentin Formation Using Stem Cell Therapy versus Calcium Hydroxide in Direct Pulp Capping: An Animal Study.

Braz Dent J 2019 Nov-Dec;30(6):542-549

Department of Conservative Dentistry, Faculty of Dentistry, Cairo University, Cairo, Egypt.

Direct pulp capping process is a therapeutic method aimed at maintenance of pulp vitality and health by using a biocompatible material placed directly over the exposed pulp. The aim of this study was to evaluate and compare the effect of direct pulp capping procedures by dental pulp stem cells (DPSCs) or calcium hydroxide on dentin tissue formation. Three mongrel dogs were used as experimental model. Read More

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http://dx.doi.org/10.1590/0103-6440201902711DOI Listing
December 2019

Antimicrobial Activity and Physicochemical Properties of Antibiotic Pastes Used In Regenerative Endodontics.

Braz Dent J 2019 Nov-Dec;30(6):536-541

Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, USP-Universidade de São Paulo, Bauru, SP, Brazil.

The purpose of this study was to evaluate the pH, solubility and antimicrobial action of Calcium Hydroxide Paste (CH), Double Antibiotic Paste (metronidazole+ciprofloxacin-DAP), calcium hydroxide added to DAP (CH/DAP) and Triple Antibiotic Paste (metronidazole + ciprofloxacin+minocycline-TAP). pH (n=10) were measured by pHmeter. Root canals of acrylic teeth (n=10) were filled with the above-mentioned intracanal-dressings, immersed in ultrapure water, and solubility was measured by the difference between the initial and final volume (7,15 and 30 days) by using micro-computed tomography. Read More

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http://dx.doi.org/10.1590/0103-6440201902613DOI Listing
December 2019
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Limited Evidence Suggests Benefits of Single Visit Revascularization Endodontic Procedures - A Systematic Review.

Braz Dent J 2019 Nov-Dec;30(6):527-535

School of Dentistry, International Medical University, Kuala Lumpur, Malaysia.

Revascularization endodontic procedures commonly require multiple treatment sessions. However, single visit procedures may be advantageous from the clinical and patient management standpoints. The purpose of this review was to evaluate the outcomes of single-visit revascularization endodontic procedures for the management of immature permanent teeth with non-vital pulp. Read More

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http://dx.doi.org/10.1590/0103-6440201902670DOI Listing
December 2019

Preemptive Use of Piroxicam on Tooth Sensitivity Caused By In-Office Bleaching: A Randomized Clinical Trial.

Braz Dent J 2019 7;30(5):498-504. Epub 2019 Oct 7.

Department of Dentistry, UFS - Universidade Federal de Sergipe, Aracaju, SE, Brazil.

This clinical trial evaluated the effect of preemptive use of the non-steroidal anti-inflammatory drug piroxicam in a single dose 30 min prior to in-office bleaching on the prevention of tooth sensitivity (TS) reported by patients. Fifty patients were submitted to two sessions of in-office tooth bleaching with 35% hydrogen peroxide used for 2 sessions, each consisting of a single 45-min application, with an interval of 7 days between session. Thirty minutes prior to the procedure, the patient randomly received a single dose of piroxicam (200 mg) or placebo in a double-blind, randomized, crossover design. Read More

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http://dx.doi.org/10.1590/0103-6440201902762DOI Listing
October 2019

What Has Changed in the Dental Prosthesis Procedures in Primary Health Care In Brazil?

Braz Dent J 2019 7;30(5):519-522. Epub 2019 Oct 7.

Department of Community and Preventive Dentistry, School of Dentistry, UFMG - Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.

The study aimed to identify the changes in the provision of dental prosthetics procedures in the Brazilian primary care. Secondary data from the Brazilian "National Programme for Improving Access and Quality of Primary Care" was assessed and three similar questions related to dental prostheses execution that were answered by the same 9,698 oral health teams, in 2011/2012 and 2013/2014, were compared. There was a 4. Read More

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http://dx.doi.org/10.1590/0103-6440201902695DOI Listing
October 2019

The Wear Performance of Glazed and Polished Full Contour Zirconia.

Braz Dent J 2019 7;30(5):511-518. Epub 2019 Oct 7.

Department of Dental Materials and Prosthodontics, UNESP - Universidade Estadual Paulista, São José dos Campos, SP, Brazil.

This study evaluated the influence of zirconia surface finishes on the wear of an enamel analogue. 40 zirconia discs were divided into four groups: control (without finish); glazed; polished; polished and glazed. All samples were subjected to wear against steatite antagonists. Read More

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http://dx.doi.org/10.1590/0103-6440201902801DOI Listing
October 2019

Reinforced Glass-ceramics: Parametric Inspection of Three-Dimensional Wear and Volumetric Loss after Chewing Simulation.

Braz Dent J 2019 7;30(5):505-510. Epub 2019 Oct 7.

Department of Dental Materials and Prosthodontics, UNESP - Universidade Estadual Paulista, São José dos Campos, SP, Brazil.

The aim of this study was to investigate the three-dimensional wear, volumetric loss and surface roughness after chewing simulation of two glass ceramics. Lithium disilicate (LD, Emax CAD, Ivoclar) and Zirconia reinforced lithium silicate (ZLS, Vita Suprinity, Vita Zhanfabrick) discs (n=20/g) were scanned to obtain stereolithography (STL) files for each sample. All discs were submitted to chewing simulation with sliding configuration (30 N, 300,000 cycles, 6 mm and 1. Read More

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http://dx.doi.org/10.1590/0103-6440201902699DOI Listing
October 2019

Effect of Magnification during Post Space Preparation on Root Cleanness and Fiber Post Bond Strength.

Braz Dent J 2019 7;30(5):491-497. Epub 2019 Oct 7.

Department of Operative Dentistry and Dental Materials, School of Dentistry, UFU- Universidade de Uberlândia, Uberlândia, MG, Brazil.

The aim of this study was to evaluate the effect of magnification during post space preparation on root cleanness and on fiber post bond strength. Methods: Thirty human central upper incisors with similar root canal in size and shape were selected, decoronated to 15 mm and endodontically filled. The teeth were assigned into 3 groups (n=10), according to the method of magnification during post space preparation inspection: Control, using naked eye; loupe, using a dental surgical 3x magnifying glass; surgical microscope, using a 6x surgical microscope. Read More

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http://dx.doi.org/10.1590/0103-6440201902662DOI Listing
October 2019

Effects of Papain-Based Gel Used For Caries Removal on Macrophages and Dental Pulp Cells.

Braz Dent J 2019 7;30(5):484-490. Epub 2019 Oct 7.

Department of Pediatric Clinics, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.

Papain-based gel is used for chemical-mechanical caries removal and present antimicrobial and anti-inflammatory activities. However, its effects on dental pulp cells and on macrophages remains largely unknown. Therefore, the aim of this study was to investigate whether the papain-based gel Papacárie Duo® acts as an immunomodulator in lipopolysaccharide (LPS)-activated macrophages and its effects on dental pulp cells . Read More

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http://dx.doi.org/10.1590/0103-6440201902560DOI Listing
October 2019

Interfacial Properties and Bottom/Top Hardness Ratio Produced by Bulk Fill Composites in Dentin Cavities.

Braz Dent J 2019 7;30(5):476-483. Epub 2019 Oct 7.

Department of Dentistry, UFRN - Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.

The aim of this study was to evaluate the bond strength, bottom/top hardness ratio, marginal adaptation, and interfacial nanoleakage of regular viscosity bulk fill composites (RVBFC) and regular viscosity traditional composites (RVTC). Two RVBFC (Filtek Bulk Fill and Aura Bulk Fill) and two RVTC (Filtek Z250XT and Aura) were assessed. Forty conical cavities (4. Read More

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http://dx.doi.org/10.1590/0103-6440201902741DOI Listing
October 2019

Bond Stability of Universal Adhesives Applied To Dentin Using Etch-And-Rinse or Self-Etch Strategies.

Braz Dent J 2019 7;30(5):467-475. Epub 2019 Oct 7.

Graduate Program in Dentistry, School of Dentistry, UFPEL - Universidade Federal de Pelotas, Pelotas, RS, Brazil.

This study evaluated the immediate and 6-month dentin bond strength of universal adhesives used in etch-and-rinse or self-etch bonding strategies. The adhesives tested were Ambar Universal, G-Bond, Single Bond Universal, Tetric N-Bond Universal, and Ybond Universal. Gold standard adhesives (Scotchbond Multipurpose Plus and Clearfil SE Bond) were controls. Read More

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http://dx.doi.org/10.1590/0103-6440201902578DOI Listing
October 2019

Influence of Pre-Heating Regular Resin Composites and Flowable Composites on Luting Ceramic Veneers with Different Thicknesses.

Braz Dent J 2019 7;30(5):459-466. Epub 2019 Oct 7.

Department of Restorative Dentistry, Dental Materials Division, UNICAMP - Universidade de Campinas, Piracicaba, SP, Brazil.

The aim of this study was to evaluate of pre-heating, filler contents and ceramic thickness on film thickness, microshear bond strength, degree of conversion and color change on ceramic veneers. Two experimental composites were prepared (Bis-GMA/UDMA/BisEMA/ TEGDMA), with different amounts of filler (65% or 50%wt) simulating a conventional and a flowable composite. The flowable (F) was used at room temperature and, the conventional either at room temperature (C) or pre-heated (CPH). Read More

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http://dx.doi.org/10.1590/0103-6440201902513DOI Listing
October 2019
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Analysis of Molecular Changes Induced By Mineral Trioxide Aggregate On sPLA2.

Braz Dent J 2019 7;30(5):453-458. Epub 2019 Oct 7.

Department of Chemistry, UFS - Universidade Federal de Sergipe, Aracaju, SE, Brazil.

The aim of this study was to analyze the effects of MTA on the structure and enzymatic activity of sPLA2 in order to provide subsidies for improvement in the formulation of the product. MTA powder was incubated for 60 min in the presence of sPLA2 and was analyzed by chromatography, electrospray mass (ESI-MS) and small-angle X-ray scattering (SAXS). It was find that the elution profile, retention time, and fragmentation of sPLA2 were altered after treatment with MTA. Read More

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http://dx.doi.org/10.1590/0103-6440201902463DOI Listing
October 2019
2 Reads

Restorative Possibilities Using Zirconia Ceramics for Single Crowns.

Braz Dent J 2019 7;30(5):446-452. Epub 2019 Oct 7.

Graduate Program in Dentistry, School of Dentistry, IMED - Faculdade Meridional, Passo Fundo, RS, Brazil.

Two clinical cases are presented to explore technical differences and discusses the advantages and disadvantages of using veneered or monolithic zirconia to manufacture posterior single crowns. The first case describes the clinical steps in manufacturing a monolithic crown on a mandibular left second premolar using high translucency zirconia. It shows the use of a conservative tooth preparation based on the superior mechanical properties that this material presents as well as the final optical characteristics achieved by shading and staining. Read More

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http://dx.doi.org/10.1590/0103-6440201902780DOI Listing
October 2019

Differential Molecular Signature of Human Saliva Using ATR-FTIR Spectroscopy for Chronic Kidney Disease Diagnosis.

Braz Dent J 2019 7;30(5):437-445. Epub 2019 Oct 7.

Department of Physiology, Institute of Biomedical Sciences, UFU - Universidade Federal de Uberlândia, Uberlandia, MG, Brazil.

The symptoms of chronic kidney disease (CKD) are often not specific or absent in the early stages of this illness. Therefore, there is a demand for developing low cost, non-invasive and highly accurate platforms for CKD diagnostics. We hypothesized that the level of specifics salivary components changes when CKD is emplace, which could be clinically used to discriminate CKD patients from healthy subjects. Read More

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http://dx.doi.org/10.1590/0103-6440201902228DOI Listing
October 2019

Azithromycin and Full-Mouth Scaling For the Treatment of Generalized Stage III and IV Periodontitis: A 6-Month Randomized Comparative Clinical Trial.

Braz Dent J 2019 7;30(5):429-436. Epub 2019 Oct 7.

Nucleus of Periodontal Tesearch, Dental School, UNITAU - Universidade de Taubaté, Taubaté, SP, Brazil.

The effectiveness of azithromycin combined with full-mouth scaling procedures was compared to quadrant-wise scaling combined with the same dosage of azithromycin when treating periodontitis patients over a 6-month period. In this randomized clinical trial study, thirty-four individuals diagnosed with generalized stage III and IV periodontitis underwent baseline, 3-month, and 6-month post-treatment examinations. The study population was randomly assigned to either full-mouth scaling (FMS) or quadrant-wise scaling and root planning (QSRP) in addition to their taking of systemic azithromycin (500 mg/day) for three consecutive days. Read More

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http://dx.doi.org/10.1590/0103-6440201902111DOI Listing
October 2019

Systemic Effects (Risks) of Water Fluoridation.

Braz Dent J 2019 7;30(5):421-428. Epub 2019 Oct 7.

Piracicaba Dental School, UNICAMP Universidade Estadual de Campinas, Piracicaba, SP, Brazil.

Since the 1950s, the benefits and risks of fluoridated water use have been debated worldwide. In the past, it was considered that the systemically ingested fluoride would exert its primary preventive effect after being incorporated into the enamel as fluorapatite, making the enamel more resistant to the caries process; however, it is now recognized that the main effect of water fluoridation is local and post eruptive. On the other hand, irrespective of the caries decline reported worldwide, the anticaries benefit of water fluoridation continues to be observed even in developed countries. Read More

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http://dx.doi.org/10.1590/0103-6440201903124DOI Listing
October 2019

Errata: Infrared Light-Emitting Diode (LED) Effects on Orthodontic Tooth Movement.

Authors:

Braz Dent J 2019 Aug 5. Epub 2019 Aug 5.

[This corrects the article doi: 10.1590/0103-6440201902416]. Read More

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http://dx.doi.org/10.1590/0103-64402019errata1DOI Listing

Infrared Light-Emitting Diode (LED) Effects on Orthodontic Tooth Movement.

Braz Dent J 2019 Jul 22;30(4):410-416. Epub 2019 Jul 22.

Department of Orthodontics and Pediatric Dentistry, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil.

The present study aimed to analyze the effect of LED phototherapy on the presence of hyalinization and root resorption during orthodontic tooth movement (OTM) in rats and to measure the amount of tooth movement. Eighty rats were allocated into two groups: LED and control (CON), where the LED rats were irradiated with infrared LED (850 nm, 30 mW) for 5 min during the first five days of OTM and where controls were not irradiated. Both groups were subdivided into four subgroups (n=10) according to the date of euthanasia (4, 7, 14 and 21 days). Read More

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http://dx.doi.org/10.1590/0103-6440201902416DOI Listing
July 2019
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Crossover Studies of Pediatric Dental Sedation are Inappropriate.

Braz Dent J 2019 Jul 22;30(4):404-409. Epub 2019 Jul 22.

Faculdade de Odontologia, UFG - Universidade Federal de Goiás, Goiânia, GO, Brazil.

Crossover studies continue to be published in spite of warnings about their inherent risks in relation to behavioral outcomes. This study took the opportunity of access to secondary data analysis in order to demonstrate the impact of a crossover design on the outcomes of randomized clinical trials aimed at the behavior of children during dental treatment. We evaluated the effect of the sequence of sedative administration, the sedative and the participant's age on the behavior of children undergoing two sequential dental visits. Read More

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http://dx.doi.org/10.1590/0103-6440201902852DOI Listing

Accuracy of Irradiance and Power of Light-Curing Units Measured With Handheld or Laboratory Grade Radiometers.

Braz Dent J 2019 Jul 22;30(4):397-403. Epub 2019 Jul 22.

Department of Restorative Sciences, Dental College of Georgia, Augusta University, Augusta, GA, USA.

This study measured and compared exitance irradiance and power of 4 commercial dental light-curing units (LCU) (Elipar S10, Elipar DeepCure-S, Corded VALO and Bluephase Style) using different types of radiometers. The devices used to analyze the LCU were classified as either handheld analog (Henry Schein, Spring, Demetron 100A, Demetron 100B and Demetron 200), handheld digital (Bluephase 1, Bluephase II, Coltolux, CureRite and Hilux), or laboratory instruments (Thermopile and Integrating Sphere). The laboratory instruments and the Bluephase II radiometer were also used to measure the LCU's power (mW). Read More

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http://dx.doi.org/10.1590/0103-6440201902430DOI Listing
July 2019
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Decomposition Rate, pH, and Enamel Color Alteration of At-Home and In-Office Bleaching Agents.

Braz Dent J 2019 Jul 22;30(4):385-396. Epub 2019 Jul 22.

Department of Restorative Dentistry, Piracicaba Dental School, UNICAMP - Universidade Estadual de Campinas, Piracicaba, SP, Brazil.

This study evaluated the decomposition rate (DR), pH, enamel color alteration (DE) and whiteness index (DWI) promoted by at-home and in-office bleaching. Enamel surface was submitted to (n=10): at-home (10%, 15%, 20% carbamide peroxide - CP, 6% hydrogen peroxide -HP) and three 35% HP agents with light irradiation (LED, laser, and halogen) or no treatment (control). The DR and pH of agents were measured after 0, 2, 4, 6 and 8 h (at-home) or after 5, 15, 20, 30 and 40 min (in-office). Read More

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http://dx.doi.org/10.1590/0103-6440201902484DOI Listing

Fracture Load and Failure Mode of CAD-on Ceramic Structures.

Braz Dent J 2019 Jul 22;30(4):380-384. Epub 2019 Jul 22.

Postgraduate Program in Dentistry, Dental School, UPF - Universidade de Passo Fundo, Passo Fundo, RS, Brazil.

This study evaluated the fracture load (Lf) and the failure mode of CAD-on (Ivoclar Vivadent) ceramic structures, testing the hypotheses that Lf of multilayer structures is governed by the veneering ceramic strength and that chipping is more frequent in multilayer than monolithic structures. Disc-shaped specimens were fabricated as follows: CAD-on- trilayer structure composed of Y-TZP (yttria stabilized tetragonal zirconia polycrystal- IPS e.max ZirCAD) infrastructure, fusion glass-ceramic (IPS e. Read More

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http://dx.doi.org/10.1590/0103-6440201902574DOI Listing
July 2019
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Irreversible Pulpitis - A Source of Antibiotic Over-Prescription?

Braz Dent J 2019 Jul 22;30(4):374-379. Epub 2019 Jul 22.

University of Leeds, Worsley Building, Clarendon Way, Leeds, UK.

Antibiotic resistance is a growing public health concern. Antibiotics continue to be prescribed by some clinicians to resolve dental pain even though research indicates that antibiotics are not effective for treating conditions such as irreversible pulpitis. The objective of this study was to determine the extent to which current research and evidence around irreversible pulpitis has been translated into dental practice and the gaps in dentists' knowledge. Read More

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http://dx.doi.org/10.1590/0103-6440201902873DOI Listing
July 2019
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Solubility, Porosity, Dimensional and Volumetric Change of Endodontic Sealers.

Braz Dent J 2019 Jul 22;30(4):368-373. Epub 2019 Jul 22.

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

The aim of this study was to evaluate physical properties of endodontic sealers (AH Plus, MTA Fillapex and Endofill), by conventional and micro-CT tests. Dimensional stability was evaluated after immersion of materials in distilled water for 30 days. Solubility and volumetric change were evaluated after 7 and 30 days of immersion in distilled water. Read More

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http://dx.doi.org/10.1590/0103-6440201902607DOI Listing

Apically Extruded Debris Using Passive Ultrasonic Irrigation Associated with Different Root Canal Irrigants.

Braz Dent J 2019 Jul 22;30(4):363-367. Epub 2019 Jul 22.

Department of Restorative Dentistry, Division of Endodontics, UNICAMP - Universidade Estadual de Campinas, Piracicaba, SP, Brazil.

The present study evaluated the amount of apically extruded debris after chemo-mechanical preparation (CMP) associated with passive ultrasonic irrigation (PUI) using four different root canal irrigants, namely, 6% sodium hypochlorite (NaOCl), 2% chlorhexidine gel + saline solution (2% CHXg+SS), 2% chlorhexidine solution (2% CHXs) and SS alone. Sixty mandibular premolars with single straight root canals were selected and randomly assigned into 4 groups (n=15) according to the root canal irrigant used as follows: G1 (PUI + NaOCl), G2 (PUI + CHXg+SS), G3 (PUI+CHXs) and G4 (PUI+SS). Reciproc® R25 files (25/. Read More

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http://dx.doi.org/10.1590/0103-6440201902674DOI Listing