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Brazilian Oral Research

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https://read.qxmd.com/read/30758411/effect-of-a-resin-modified-glass-ionomer-with-calcium-on-enamel-demineralization-inhibition-an-in-vitro-study
#1
Cassiana Koch Scotti, Marilia Mattar de Amoêdo Campos Velo, Nair Cristina Margarido Brondino, Bruno Martini Guimarães, Adilson Yoshio Furuse, Rafael Francisco Lia Mondelli, Juliana Fraga Soares Bombonatti
We assessed the effect of a new coating material based on resin-modified glass-ionomer with calcium (Ca) in inhibiting the demineralization of underlying and adjacent areas surrounding caries-like lesions in enamel. The measures used were surface hardness (SH) and cross-sectional hardness (CSH). Thirty-six bovine enamel specimens (3 × 6 × 2 mm) were randomly allocated into three groups (n = 12): No treatment (NT); resin-modified glass-ionomer with Ca (Clinpro XT Varnish, 3M ESPE) (CL), and fluoride varnish (Duraphat, Colgate) (DU)...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758410/effect-of-grape-seed-extract-gse-on-functional-activity-and-mineralization-of-od-21-and-mdpc-23-cell-lines
#2
Maria Carolina Coelho, Paula Katherine Vargas Sanchez, Roger Rodrigo Fernandes, Fernanda Panzeri Pires de Souza, Selma Siéssere, Karina Fittipaldi Bombonato-Prado
Recent studies on functional tissue regeneration have focused on substances that favor cell proliferation and differentiation, including the bioactive phenolic compounds present in grape seed extract (GSE). The aim of this investigation was to evaluate the stimulatory potential of GSE in the functional activity of undifferentiated pulp cells and odontoblast-like cells. OD-21 and MDPC-23 cell lines were cultivated in odontogenic medium until subconfluence, seeded in 24-well culture plates in a concentration of 2x104/well and divided into: 1) OD-21 without GSE; 2) OD-21+10 µg/mL of GSE; 3) MDPC-23 without GSE; 4) MDPC-23+10 µg/mL of GSE...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758409/new-material-perspective-for-endocrown-restorations-effects-on-mechanical-performance-and-fracture-behavior
#3
José Augusto Sedrez-Porto, Eliseu Aldrighi Münchow, Lisia Lorea Valente, Maximiliano Sergio Cenci, Tatiana Pereira-Cenci
The aim of this study was to investigate the mechanical performance and the fracture behavior of endocrown restorations prepared using distinct restorative materials. A total of 42 sound molars with similar crown size and shape were cut at 2 mm above the cementoenamel junction and endodontically treated. They were categorized according to the restorative material used to fabricate endocrown restorations (n=7), namely, conventional composite (Filtek™ Z350 XT), bulk fill composite (Filtek™ Bulk Fill), conventional composite modeled using resin adhesives (SBMP: Scotchbond™ Multipurpose Adhesive; or SBU: Scotchbond™ Universal Adhesive), and IPS e...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758408/ultrasonic-tips-as-an-auxiliary-method-for-the-instrumentation-of-oval-shaped-root-canals
#4
Melissa Esther Rivera-Peña, Marco Antônio Húngaro Duarte, Murilo Priori Alcalde, Renan Diego Furlan, Marcus Vinicius Reis Só, Rodrigo Ricci Vivan
To evaluate the influence of novel ultrasonic tips as an auxiliary method for the rotary preparation of flattened/oval-shaped canals. Forty-five mandibular incisors were selected and divided into one of three experimental groups (n = 15): Group PFCP - ProDesign Logic 25/.05 + Flatsonic + Clearsonic + Prodesign Logic 40/.01; Group FCP - Flatsonic + Clearsonic + ProDesign Logic 40/.01; and Group PP - Prodesign Logic 25/.05 + Prodesign Logic 40/.05. The teeth were scanned preoperatively and postoperatively using microcomputed tomography...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758407/validation-of-self-reported-history-of-root-canal-treatment-in-a-southern-brazilian-subpopulation
#5
Gisele Jung Franciscatto, Bárbara Thereza de Freitas Koppe, Carolina Bender Hoppe, João Augusto Peixoto de Oliveira, Alex Nogueira Haas, Fabiana Soares Grecca, Giampiero Rossi-Fedele, Maximiliano Schünke Gomes
The aim of this study was to assess self-reported history of root canal treatment (SRHRCT) as a method for detecting the presence of root canal treatment (RCT) and apical periodontitis (AP) in a southern Brazilian subpopulation. In this cross-sectional study, 136 military police officers from the city of Porto Alegre, Brazil, were included. The participants were interviewed and full-mouth periapical radiographs were taken. A calibrated examiner determined the presence of RCT and AP by applying standardized criteria...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758406/the-effect-of-enamel-matrix-derivatives-on-root-coverage-a-12-month-follow-up-of-a-randomized-clinical-trial
#6
Hacer Sahin Aydinyurt, Yasin Tekin, Abdullah Seckin Ertugrul
Subepithelial connective tissue grafts (SCTGs) with a coronally advanced flap (CAF) are accepted as the gold standard for covering denuded root surfaces. In recent years, enamel matrix derivatives (EMDs) have been used for their regenerative potential in periodontics. The aim of this split-mouth and randomized controlled study was to assess the clinical and aesthetical impacts of EMD application in combination with SCTG+CAF in patients with Miller's Class I and II gingival recessions in contralateral canines of the maxilla...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758405/influence-of-chlorhexidine-and-zinc-oxide-in-calcium-hydroxide-pastes-on-ph-changes-in-external-root-surface
#7
Thiago Farias Rocha Lima, Juliane Fabrício Ascendino, Isabelly de Oliveira Cavalcante, Fabio Luiz Cunha D Assunção, Juan Ramon Salazar-Silva, Emmanuel João Nogueira Leal da Silva, Sherlan Guimarães Lemos, Adriana de Jesus Soares
The objective of this study was to assess the influence of chlorhexidine (liquid and gel) and zinc oxide in calcium hydroxide (CH) pastes on root pH in simulated external resorption. One hundred human anterior teeth with a single root canal were selected. After decoronation and root canal instrumentation, the specimens were divided into 4 experimental groups and 1 control group (without intracanal paste): CH + saline (CH+S), CH + 2% chlorhexidine liquid (CH+ CHX), CH + 2% chlorhexidine gel (CH+ CHXg), and CH + 2% chlorhexidine gel + zinc oxide (CH+ CHXg+ZnO)...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758404/four-a-s-of-eco-friendly-dentistry
#8
Shanthi Vanka, Othman Wali, Amit Vanka
No abstract text is available yet for this article.
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758403/a-comparative-study-of-bulk-fill-composites-degree-of-conversion-post-gel-shrinkage-and-cytotoxicity
#9
LETTER
Alejandra Zuñiga Cisneros, Alessandra Sojo Armas
No abstract text is available yet for this article.
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758402/iodoform-vs-calcium-hydroxide-zinc-oxide-based-pastes-12-month-findings-of-a-randomized-controlled-trial
#10
Daniele Vieira Cassol, Maysa Lannes Duarte, Andrea Vaz Braga Pintor, Roberta Barcelos, Laura Guimarães Primo
This study evaluated clinical and radiographic twelve-month outcomes of root canal treatments (CT) with smear layer removal, performed in primary teeth, using two different root canal filling materials. Pulpectomy was performed on 27 primary teeth with necrosis or irreversible pulpitis, caused by dental caries or trauma, in 23 children (2-7 years old). A single trained operator performed the CT in a single visit in cases without periapical or interradicular radiolucency (PIR) or in multiple visits in cases with PIR...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30758401/the-effect-of-colchicine-on-alveolar-bone-loss-in-ligature-induced-periodontitis
#11
Hulya Toker, Hatice Balci Yuce, Ali Yildirim, Mehmet Buğrul Tekin, Fikret Gevrek
Colchicine is widely used in the treatment of several inflammatory diseases due to its anti-inflammatory effect, but effects on bone metabolism are unclear. The aim of this study was to evaluate the effects of systemically-administered colchicine on healthy periodontium and experimentally-induced periodontitis. In total, 42 male Wistar rats were included in this study. A non-ligated group constituting the negative control group (Control, C, n = 6) and a ligature-only group forming the positive control group (LO, n = 12) were created separately...
February 11, 2019: Brazilian Oral Research
https://read.qxmd.com/read/30569975/analysis-of-the-asynchronous-dental-teleconsulting-of-telehealth-brazil-networks-in-minas-gerais
#12
Lígia Cristelli Paixão, Vanessa Andrade Costa, Efigênia Ferreira E Ferreira, Antônio Paulino Ribeiro Sobrinho, Renata de Castro Martins
This cross-sectional study aimed to evaluate the asynchronous dental teleconsulting of Telehealth Brazil Networks Program in Minas Gerais. Data were collected from secondary databases of the Clinical Hospital of the Universidade Federal de Minas Gerais (CH/UFMG) and Medical School of UFMG (MS/UFMG), from July 2015 to July 2017. The variables analyzed were telehealth center, sex and profession, date and time questions and answers, response time in days, whether the issue was duly addressed, whether the teleconsulting was attended, post status, professional's satisfaction, conduct adopted after teleconsulting, dental specialty area, and type of issues...
December 17, 2018: Brazilian Oral Research
https://read.qxmd.com/read/30569974/locus-of-control-among-individuals-with-different-pain-conditions
#13
Fernanda Salloume Sampaio Bonafé, Lucas Arrais de Campos, João Marôco, Juliana Alvares Duarte Bonini Campos
The objective of this study was to evaluate the psychometric properties of the Multidimensional Health Locus of Control - Form C (MHLC-C) scale applied to a sample of adult Brazilian patients with different pain conditions. The scores were then identified and compared on each of the subscales and profiles regarding locus of control. The sample consisted of 1,149 adult individuals (79% women; mean age: 36.6 years) of which 334 reported not feeling pain in the prior 24 hours, 386 reported pain in the prior three months, 250 reported recurring pain for the prior three months or longer, and 179 reported continuous pain for the prior three months or longer...
December 17, 2018: Brazilian Oral Research
https://read.qxmd.com/read/30569973/mir-141-is-up-regulated-in-biopsies-from-vietnamese-patients-with-nasopharyngeal-carcinoma
#14
Thuan Duc Lao, Truong Van Nguyen, Dung Huu Nguyen, Minh Trong Nguyen, Chuong Hoang Nguyen, Thuy Huyen Ai Le
Novel biomarkers for screening, diagnosis and monitoring the treatment of nasopharyngeal carcinoma (NPC), one of the most common cancers in Vietnam, are urgently required. Increasing evidence suggests that microRNA-141 (miR-141) is associated with NPC, owing to its ability to affect the expression of genes that modulate tumorigenesis. Unfortunately, research on miR-141 expression in Vietnamese patients is limited. Therefore, the objective of the current study was to evaluate miR-141 expression and assess whether miR-141 might be a potential biomarker for diagnosis of NPC in Vietnamese patients...
December 17, 2018: Brazilian Oral Research
https://read.qxmd.com/read/30569972/multiple-peak-and-single-peak-dental-curing-lights-comparison-on-the-wear-resistance-of-bulk-fill-composites
#15
Beatriz Ometto Sahadi, Richard Bengt Price, Carolina Bosso André, Maicon Sebold, Gabriel Nima Bermejo, Regina Guenka Palma-Dibb, Juliana Jendiroba Faraoni, Carlos José Soares, Marcelo Giannini
The effects of tooth brushing could affect the long-term esthetic outcome of composite restorations. This study evaluated the effect of two different emission spectrum light-curing units on the surface roughness, roughness profile, topography and microhardness of bulk-fill composites after in vitro toothbrushing. Valo (multiple-peak) and Demi Ultra (single-peak) curing lights were each used for 10s to polymerize three bulk-fill resin composites: Filtek Bulk Fill Posterior Restorative (FBF), Tetric EvoCeram Bulk Fill (TET) and Surefil SDR Flow (SDR)...
December 17, 2018: Brazilian Oral Research
https://read.qxmd.com/read/30540102/acutely-infected-teeth-to-extract-or-not-to-extract
#16
Bozkurt Kubilay Isik, Gökhan Gürses, Dilek Menziletoglu
Not only laymen but also dentists generally believe that extraction of acutely infected teeth should be avoided until the infection subdues by using systemic antibiotics. The aim of this study was to compare perioperative complications in routine extractions of acutely infected teeth with extractions of asymptomatic teeth. This prospective study was performed with 82 patients. Severe pain on percussion of the relevant tooth was considered as basic criteria for acute infection. The acutely infected teeth were labeled as the study group (n = 35) and the asymptomatic teeth as the control group (n = 47)...
December 6, 2018: Brazilian Oral Research
https://read.qxmd.com/read/30540101/squamous-cell-carcinoma-of-the-tongue-in-patients-older-than-45-years
#17
Constantino Ledesma-Montes, Juan Carlos Hernández-Guerrero, Marco Antonio Durán-Padilla, Avissai Alcántara-Vázquez
This study aims to evaluate the clinicopathological features, TNM status, AJCC staging and behavior of squamous cell carcinoma of the tongue (SCCT) in patients older than 45 years. The files of the Department of Pathology of the Hospital General de México were reviewed and all cases of SCCT in patients older than 45 years were selected. Clinicopathological features, treatment, follow-up, microscopic diagnosis, and IJCC and TNM staging were retrieved. Complete data from 60 cases were evaluated. They were more common in males (mean age = 63...
December 6, 2018: Brazilian Oral Research
https://read.qxmd.com/read/30517430/how-to-improve-root-canal-filling-in-teeth-subjected-to-radiation-therapy-for-cancer
#18
Fabiana de Góes Paiola, Fabiane Carneiro Lopes, Jardel Francisco Mazzi-Chaves, Rodrigo Dantas Pereira, Harley Francisco Oliveira, Alexandra Mussolino de Queiroz, Manoel Damião de Sousa-Neto
The aim of this study was to evaluate the influence of radiation therapy on root canal sealer push-out bond strength (BS) to dentin and the sealer/dentin interface after different final irrigation solutions (NaOCl, EDTA, and chitosan). Sixty-four maxillary canines were distributed into two groups (n=30): non-irradiated and irradiated with 60 Gy. Canals were prepared with Reciproc-R50 and subdivided (n=10) for final irrigation (NaOCl, EDTA, chitosan) and filled. Three dentin slices were obtained from each root third...
November 29, 2018: Brazilian Oral Research
https://read.qxmd.com/read/30517429/evaluation-of-chemokines-and-receptors-in-gnotobiotic-root-canal-infection-by-f-nucleatum-and-e-faecalis
#19
Caroline Christine Santa-Rosa, Marcela Marçal Thebit, Kamilla Faria Maciel, Luciana Carla Neves de Brito, Leda Quercia Vieira, Antônio Paulino Ribeiro-Sobrinho
The present study aims to evaluate the longitudinal effects of induced experimental infections in gnotoxenic animals on the expression of inflammatory chemokines and their receptors in periradicular tissues. The null hypothesis tested was that Enterococcus faecalis and Fusobacterium nucleatum had no effect on CCR5, CCL5, CXCL10, CCL2/MCP-1, CXCR2 and CCR1 expression. Two groups of five animals (n = 5) aged between 8 and 12 weeks were used in this study. The animals were anaesthetized, and coronary access was performed in the first molar on the right and left sides...
November 29, 2018: Brazilian Oral Research
https://read.qxmd.com/read/30517428/assessment-of-toxicity-and-oxidative-dna-damage-of-sodium-hypochlorite-chitosan-and-propolis-on-fibroblast-cells
#20
Zeliha Uğur Aydin, Kerem Engin Akpinar, Ceylan Hepokur, Demet Erdönmez
The objective of this study was to evaluate and compare the cytotoxicity and genotoxicity on human fibroblast cell lines of sodium hypochlorite (NaOCl), chitosan and propolis as root canal irrigating solutions. Human fibroblast cells were exposed to chitosan, propolis and NaOCl for 4 and 24 h. Cell viability was assessed by 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide, and oxidative DNA damage was assessed by determination of 8-hydroxydeoxyguanosine (8-OHdG) level with an ELISA kit...
November 29, 2018: Brazilian Oral Research
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