journal
MENU ▼
Read by QxMD icon Read
search

Brazilian Dental Journal

journal
https://www.readbyqxmd.com/read/28492759/ameloblastic-fibrosarcoma-a-case-report-and-literature-review
#1
João Paulo Silva Servato, Paulo Rogério de Faria, Cássio Vinhadelli Ribeiro, Sergio Vitorino Cardoso, Paulo Rogério de Faria, Fernando Luiz Dias, Ana Lúcia Amaral Eisenberg, Adriano Mota Loyola
Here is described a case of ameloblastic fibrosarcoma (AFS) affecting the posterior mandible of a woman who was treated surgically and recovered without signs of recurrence or metastasis after 12 years of follow-up. Tumor sections were immunostained for cell cycle, epithelial and mesenchymal markers. Immunohistochemical analysis evidenced high Ki-67 positivity in stromal cells (mean of 20.9 cells/High power field). Epithelial cells displayed strong positivity for p53, p63 and cytokeratin 19. In addition to the case report, a systematic review of current knowledge is presented on the AFS's clinical-demographic features and prognostic factors...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492758/giant-epignathus-teratoma-discovered-at-birth-a-case-report-and-7-year-follow-up
#2
Cyntia Helena Pereira de Carvalho, Cassiano Francisco Weege Nonaka, Cassandra Teixeira Valle Elias, Rita de Cassia Simões Matheus, Roberto Menezes Bezerra Dias, Lélia Batista de Souza, Leão Pereira Pinto
Teratomas are tumors composed by tissues derived from the three germ cell layers, and they are relatively uncommon in head and neck. The term epignathus has been applied to teratomas from the oropharynx. This paper reports the case of a giant epignathus teratoma discovered at birth, which was successfully managed and followed up for 7 years. A newborn boy presented a polypoid tumor mass exteriorizing through the mouth over a length of 9 cm, with some surface areas resembling skin and others exhibiting hair...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492757/meloxicam-as-a-radiation-protective-agent-on-mandibles-of-irradiated-rats
#3
Mayra Cristina Yamasaki, Yuri Nejaim Gina Delia Roque-Torres, Deborah Queiroz Freitas
This study evaluated the action of ionizing radiation and the possible radioprotective effect of the non-steroidal anti-inflammatory drug meloxicam on the bone physiology of rat mandibles by assessing the alveolar socket healing and bone strength. Forty male Wistar rats were divided in 4 groups (n=10): control (CG), irradiated (IG), meloxicam (MG), meloxicam irradiated (MIG). A dose of 0.2 mg/kg meloxicam was administered to MG and MIG. After this, IG and MIG were irradiated with 15 Gy radiation dose in the mandible...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492756/a-longitudinal-study-of-early-childhood-caries-and-associated-factors-in-brazilian-children
#4
Fabiane Piva, Joanna Tatith Pereira, Patrícia Blaya Luz, Lina Naomi Hashizume, Fernando Neves Hugo, Fernando Borba de Araujo
Early childhood caries (ECC) affects children all over the world and has high prevalence and severity in preschool children. Different social, biological and behavioral factors compose a network of causal factors for ECC. The aim was to evaluate the association between socioeconomic variables and caries at baseline, and the presence of Streptococcus mutans and Lactobacillus spp. microorganisms with the progression of caries lesions after two years of follow-up in a group of children. At baseline, 163 children (3-4 years old) living in the areas of 12 primary care services of the Hospital Group Conceição (GHC, Porto Alegre, RS, Brazil) were evaluated...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492754/mandibular-protraction-appliance-effects-in-class-ii-malocclusion-in-children-adolescents-and-young-adults
#5
Luana Farias Pontes, Francisco Ajalmar Maia, Marcio Rodrigues Almeida, Carlos Flores-Mir, David Normando
The aim of this study was to evaluate the effects of the mandibular protraction appliance (MPA) for treating mild to moderate Class II malocclusion at different stages of dentofacial development. Lateral radiographs were evaluated before (T0) and at the end (T1) of orthodontic treatment with fixed appliance associated with MPA. Sixty-five consecutively treated patients were divided according to the stage of dentofacial development: 21 children in late mixed dentition, 22 adolescents and 22 young adults with full permanent dentition...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492753/effect-of-erosion-abrasion-challenge-on-the-dentin-tubule-occlusion-using-different-desensitizing-agents
#6
Gabriela D Canali, Rodrigo N Rached, Rui F Mazur, Evelise M Souza
The aim of the study was to evaluate dentinal tubule occlusion, measuring the dentin permeability (Lp) and using different desensitizing agents before and after abrasive/erosive challenge. Dentin discs from 42 healthy human third molars were obtained. Minimum Lp was measured after a smear layer simulation using #600 SiC paper and maximum Lp after an immersion in 0.5 M EDTA. The specimens were treated with different desensitizers: two varnishes (Clinpro XT Varnish-CV, Fluor Protector-FP), a paste (Desensibilize Nano P-NP) and a gel (Oxa Gel-OG)...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492751/influence-of-thermal-cycles-number-on-bond-strength-of-metallic-brackets-to-ceramic
#7
José Eliú Pereira Jurubeba, Ana Rosa Costa, Lourenço Correr-Sobrinho, Carlos Alberto Malanconi Tubel, Américo Bortolazzo Correr, Silvia Amélia Vedovello, Marcus Vinicius Crepaldi, Mário Vedovello
The aim of this study was to evaluate the effect of different number of thermal cycles on the shear bond strength (SBS) of metallic orthodontic brackets bonded to feldspathic ceramic by a composite resin. Twenty-five ceramic cylinders were etched with 10% hydrofluoric acid for 60 s and received two layers of silane. Brackets were bonded to the cylinders using Transbond XT and assigned to 5 groups (n=5): Group 1 - Control group (without thermal cycling); Group 2 - 500 thermal cycles; Group 3 - 5,000 thermal cycles; Group 4 - 7,000 thermal cycles and Group 5 - 10,000 thermal cycles...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492749/triazine-compound-as-copolymerized-antibacterial-agent-in-adhesive-resins
#8
Priscila Raquel Schiroky, Vicente Castelo Branco Leitune, Isadora Martini Garcia, Fabrício Aulo Ogliari, Susana Maria Werner Samuel, Fabrício Mezzomo Collares
The aim of this study was to formulate and evaluate an experimental adhesive resin with the addition of 1,3,5-triacryloylhexahydro-1,3,5-triazine at different concentrations. Experimental adhesive resins were obtained by mixing 50% wt bisphenol A glycol dimethacrylate (BisGMA), 25% wt triethylene glycol dimethacrylate (TEGDMA), 25% wt 2-hydroxyethyl methacrylate (HEMA) and photoinitiator system. The triazine compound was added in 1, 2.5 and 5% wt to a base adhesive resin and one group remained with no triazine as control group...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492748/influence-of-resin-cements-on-color-stability-of-different-ceramic-systems
#9
Renata Borges Rodrigues, Erick de Lima, Marina Guimarães Roscoe, Carlos José Soares, Paulo Francisco Cesar, Veridiana Resende Novais
The purpose of this study was to evaluate color stability of two dental ceramics cemented with two resin cements, assessing the color difference (ΔE00) by the measurement of L*, a*, b*, c* and h* of transmittance. The combination of two ceramic system (feldspathic and lithium disilicate) and two resin cements - color A3 (RelyX ARC and Variolink II) resulted in 4 groups (n=5). Ten disks-shaped specimens were fabricated for each ceramic system (10x1.5 mm), etched with hydrofluoric acid (10%) and silanized prior to cementation...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492746/biocompatibility-of-a-new-dental-glass-ionomer-cement-with-cellulose-microfibers-and-cellulose-nanocrystals
#10
Rafael Menezes-Silva, Fabiano Vargas Pereira, Maria Helena Santos, Janir Alves Soares, Suelleng Maria Cunha Santos Soares, João Luiz de Miranda
Developing new restorative materials should avoid damage to tissue structures. This study evaluated the biocompatibility of a commercial dental glass ionomer cement (GIC) mechanically reinforced with cellulose microfibers (GIC+CM) or cellulose nanocrystals (GIC+CN) by implantation of three test specimens in subcutaneous tissue in the dorsal region of 15 Rattus norvegicus albinus rats. Each rat received one specimen of each cement, resulting in the following groups (n=15): Group GIC (Control), Group GIC+CM and Group GIC+NC...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492745/cytotoxicity-evaluation-of-root-canal-sealers-using-an-in-vitro-experimental-model-with-roots
#11
Ligia Teixeira, Fernanda Gonçalves Basso, Josimeri Hebling, Carlos Alberto de Souza Costa, Graziela Garrido Mori, Yara Teresinha Corrêa Silva-Sousa, Camila Fávero de Oliveira
The aim of the present study was to evaluate the cytotoxicity of root canal sealers under conditions closely resembling a clinical reality. A primary human fibroblast cell line was seeded in 24-well acrylic plates with Dulbecco's modified Eagle's medium supplemented with 10% serum fetal bovine (SFB) and incubated for 24 h. Root canals from premolars were filled and individually attached to nylon devices to be stabilized in the wells with the already seeded cells. Specimens were divided into groups as follows: Control: gutta-percha cones (GPC); AH Plus+GPC; Sealapex+GPC; MTA Fillapex+GPC and Endofill+GPC...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492743/presence-of-cells-in-fresh-frozen-allogeneic-bone-grafts-from-different-tissue-banks
#12
Libério França Coutinho, Juliano Batista do Amaral, Érico Brito Dos Santos, Elizabeth Ferreira Martinez, Victor Angelo M Montalli, José Luiz Cintra Junqueira, Vera Cavalcanti de Araújo, Marcelo Henrique Napimoga
Bone replacement materials have been widely used to reconstruct atrophic jawbones. Based on previous reports demonstrating the presence of viable cells in bone blocks even after processing by musculoskeletal tissue banks for orthopedic use, the aim of this study was to evaluate the presence of cells in bone blocks from three Brazilian tissue banks for maxillary reconstructions. All samples were processed by the respective tissue banks, according to the guidelines of the Brazilian National Sanitary Surveillance Agency...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492742/dna-aneuploidy-in-malignant-salivary-gland-neoplasms-is-independent-of-usp44-protein-expression
#13
Vanessa Fátima Bernardes, Edward W Odell, Ricardo Santiago Gomez, Carolina Cavalieri Gomes
Chromosomal instability, leading to aneuploidy, is one of the hallmarks of human cancers. USP44 (ubiquitin specific peptidase 44) is an important molecule that plays a regulatory role in the mitotic checkpoint and USP44 loss causes chromosome mis-segregation, aneuploidy and tumorigenesis in vivo. In this study, it was investigated the immunoexpression of USP44 in 28 malignant salivary gland neoplasms and associated the results with DNA ploidy status assessed by image cytometry. USP44 protein was widely expressed in most of the tumor samples and no clear association could be established between its expression and DNA ploidy status or tumor size...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492741/effect-of-alox-15-polymorphism-on-gcf-levels-of-lipoxin-a4-in-chronic-periodontitis-a-preliminary-study
#14
Fouzia Tarannum, Mohamed Faizuddin
Lipoxins play an important role in periodontal resolution, hence, investigation of genetic polymorphism of lipoxin gene may provide important information on the role of lipoxins in periodontal disease pathogenesis. The aim of this study was to investigate a polymorphism of C-to-T substitution at position c.-292 in ALOX15 (reticulocyte-type 15 lipoxygenase 1) gene in patients with chronic periodontitis and to associate the polymorphism with gingival crevicular fluid (GCF) lipoxin A4 (LXA4) levels. Forty-five chronic periodontitis and 45 periodontally healthy patients were included in this case-control study...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492740/selective-cox-2-inhibitor-meloxicam-and-tooth-supporting-bone-quality-a-histomorphometric-study-in-rats
#15
Bruno César de Vasconcelos Gurgel, Krysna Torres de Almeida, Raniel Fernandes Peixoto, Kenio Costa Lima, Kamila Rosamilia Kantovitz, Francisco Humberto, Sergio de Toledo
The effects of the non-steroidal anti-inflammatory drugs (NSAIDs) on bone quantity and quality were investigated for years. However, there is lack of information on the impact of NSAIDs on the quality of tooth-supporting alveolar bone in absence of periodontal inflammation. Thus, the aim of this study was to evaluate histometrically the influence of a selective COX-2 NSAID (Meloxicam) on the inter-radicular bone mineral density in rats. Forty-nine adult male Wistar rats were randomly divided into four experimental groups: Subcutaneous injection of 0...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492755/association-between-root-caries-and-depressive-symptoms-among-elders-in-carlos-barbosa-rs-brazil
#16
Otávio Pereira D'Avila, Eliana Wendland, Juliana Balbinot Hilgert, Dalva Maria Pereira Padilha, Fernando Neves Hugo
The aim of this study was to evaluate the association between depressive symptoms and root caries among independent-living older persons. All community-dwelling older adults (not hospitalized and not bedridden) living in Carlos Barbosa, RS, Brazil, were invited to participate, and 785 completed the study protocol (standardized questionnaire assessing socio-demographic information and health behavior, Geriatric Depression Scale [GDS] - brief version, and oral examination [DMFT-Root index, Visible Plaque Index and stimulated salivary flow])...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492752/effect-of-metal-primers-on-bond-strength-of-a-composite-resin-to-nickel-chrome-metal-alloy
#17
Gabriel Nima, Paulo Vitor Campos Ferreira, Andreia Bolzan de Paula, Simonides Consani, Marcelo Giannini
This study evaluated the effects of three metal primers and one multi-mode adhesive system on the shear bond strength (SBS) of a flowable composite resin to nickel-chrome metal alloy (Ni-Cr). Ninety plates were cast from Ni-Cr and divided in nine groups (n=10). The surfaces were sandblasted with Al2O3 and primed with three adhesive primers: Alloy Primer (AP), Universal Primer (TP) and RelyX Ceramic Primer (CP), and a multi-mode adhesive (Scotchbond Universal, SU). The Adper Single Bond Plus (SB) and SU adhesives were also combined with adhesive primers...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492750/relationship-between-initial-attendance-after-dental-trauma-and-development-of-external-inflammatory-root-resorption
#18
Thiago Farias Rocha Lima, Emmanuel João Nogueira Leal da Silva, Brenda Paula Figueiredo de Almeida Gomes, José Flávio Affonso de Almeida, Alexandre Augusto Zaia, Adriana de Jesus Soares
This clinical study aimed to evaluate the relationship of the delay between dental trauma and the initial attendance to the development of external inflammatory root resorption in permanent teeth affected by severe luxation. Sixty-seven patients, aged between 11 and 56 years, presenting 133 injured teeth with closed apex (56 extrusive luxation, 69 lateral luxation and 8 intrusive luxation) were followed up for a minimum of 24 months. The time elapsed between dental trauma and the initial attendance was recorded...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492747/common-operative-procedural-errors-and-clinical-factors-associated-with-root-canal-treatment
#19
Carlos Estrela, Jesus Djalma Pécora, Cyntia R A Estrela, Orlando A Guedes, Brunno S F Silva, Carlos José Soares, Manoel Damião Sousa-Neto
Operative procedural errors must be well analyzed in order to avoid influence negatively the root canal treatment (RCT) prognosis. The successful RCT prevents tooth loss and avoids pain and apical periodontitis. This review aimed to categorize common operative procedure errors and clinical factors associated with RCT. Based on this, will be approached common errors of procedures within the clinical operative sequence: endodontic treatment planning, pulp and periapical disease diagnosis, anaesthesia, access cavity preparation, isolation with rubber dam, root canal preparation, root canal filling and retreatment, restoration of endodontically treated teeth, postoperative pain, follow up of endodontically treated teeth...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28492744/surface-properties-of-temporary-soft-liners-modified-by-minimum-inhibitory-concentrations-of-antifungals
#20
Mírian Galvão Bueno, Elen Juliana Bonassa de Sousa, Juliana Hotta, Vinícius Carvalho Porto, Vanessa Migliorini Urban, Karin Hermana Neppelenbroek
Evaluating the addition of minimum inhibitory concentrations (MICs) of antifungals for Candida albicans biofilm on the hardness and roughness of temporary denture soft liners. Specimens (n=8; 36×7×6 mm) of tissue conditioner (Softone) and resilient liner (Trusoft) were produced either without (control) or with incorporation of drugs at MICs: nystatin (0.032 g/mL), chlorhexidine diacetate (0.064 g/mL), ketoconazole (0.128 g/mL), miconazole (0.256 g/mL) and itraconazole (0.256 g/mL). Specimens were stored in distilled water at 37 °C for 24 h, 7 days and 14 days prior to the hardness/roughness measurements...
January 2017: Brazilian Dental Journal
journal
journal
31164
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"