Nafiseh Fazelian, Abbas Rahimi Dashtaki, MohammadAmin Eftekharian, Batool Amiri,
Aim: One of the reasons for the failure of adhesion in composite restorations and secondary caries may be the chemical irrigants used during the endodontic treatment. NaOCl is widely used for the biomechanical preparation of root canals due to its antimicrobial properties and capacity to dissolve organic material. In addition, another very effective decontamination solution is chlorhexidine 2%. There are few studies about the effect of root canal irrigation solutions on bond strength of universal ...
Tópico(s): Dental Anxiety and Anesthesia Techniques
2022 - UNIVERSIDADE ESTADUAL DE CAMPINAS | Brazilian journal of oral sciences/Brazilian Journal of Oral Sciences
Produção Nacional
Revisado por pares
Fernanda Blos BORGES, Ellen Luisa KOCHHANN DE LIMA, Fernanda Wiengartner MACHADO, Noéli Boscato, Françoise Hélène van de Sande, Rafael R. Moraes, Maximiliano Sérgio Cenci,
Objective: The oral environment is subject to biofilm accumulation and cariogenic challenge, and few studies exist on the effect of these factors on the bond strength of adhesive systems. The aim of this study was to test if the exposure of adhesive interfaces to cariogenic challenge under biofilm accumulation could promote higher degradation than the exposure to biofilm accumulation alone. Material And Methods: Five molars were ground until exposure of medium dentin and then restored (Single Bond ...
Tópico(s): Dental Research and COVID-19
2014 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
Carla Müller Ramos, Bruno Freitas Trevizo, Raphaela Farias Rodrigues, Ana Paula Tavares Magalhães, Adilson Yoshio Furuse, Paulo Noronha Lisboa‐Filho, Américo Tabata, Ana Flávia Sanches Borges,
Sandblasting is a common method to try to improve the Y-TZP/veneer bond strength of dental prostheses, however, it may put stress on zirconia surfaces and could accelerate the t→m phase transformation. Y-TZP sandblasting before sintering could be an alternative to improve surface roughness and bonding strength of veneering ceramic. The aim of this study was to analyze the effect of Y-TZP pre-sintering sandblasting on surface roughness, phase transformation, and the Y-TZP/veneer shear bond strength. ...
Tópico(s): Dental Research and COVID-19
2017 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
Renata Andreza Talaveira da Silva, Margareth Coutinho, Pedro Igor Cardozo, Larissa Alves da Silva, José Roberto Zorzatto,
During post preparation, the root canal is exposed to the oral cavity, and endodontic treatment may fail because of coronal leakage, bacterial infection and sealing inability of the luting cement.this study quantified the interfacial continuity produced with conventional dual-cure and self-adhesive resin cements in the cervical (C), medium (M) and apical (A) thirds of the root.Forty single-rooted human teeth were restored using Reforpost # 01 conical glass-fiber posts and different materials (N=10 per ...
Tópico(s): Dental Implant Techniques and Outcomes
2011 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
Laura Nobre Ferraz, Waldemir Francisco Vieira-Júnior, Gláucia María Bovi Ambrosano, Maria Cecília Caldas Giorgi, Flávio Henrique Baggio Aguiar, Débora Alves Nunes Leite Lima,
Objective: To evaluate the effect of 35% hydrogen peroxide (35% HP) combined to different concentrations of nanohydroxyapatite (nHA) on the effectiveness of dental bleaching (superficial enamel and deep dentin) and enamel bond strength. Material and Methods: Fifty bovine dental specimens (5x5x2mm) were divided into 5 groups, according to the treatments (n = 10): no bleaching (negative control); 35% HP (positive control); 35% HP+ 5% nHA; 35% HP + 10% nHa; and 35% HP + 15% nHA. Three in-office bleaching sessions ...
Tópico(s): Laser Applications in Dentistry and Medicine
2018 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Brazilian Dental Science
Produção Nacional
Revisado por pares
Fábio Lourenço Romano, Gláucia María Bovi Ambrosano, Maria Beatriz Borges de Araújo Magnani, Darcy Flávio Nouer,
The coefficient of variation is a dispersion measurement that does not depend on the unit scales, thus allowing the comparison of experimental results involving different variables. Its calculation is crucial for the adhesive experiments performed in laboratories because both precision and reliability can be verified. The aim of this study was to evaluate and to suggest a classification of the coefficient variation (CV) for in vitro experiments on shear and tensile strengths. The experiments were ...
Tópico(s): Orthopaedic implants and arthroplasty
2005 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Murilo Baena Lopes, Mário Alexandre Coelho Sinhoreti, Lourenço Correr Sobrinho, Símonídes Consani,
The purpose of this study was to compare shear bond strength values obtained in human enamel and dentin with the values obtained in bovine teeth using two adhesive systems with different actions. Forty human tooth half-crowns and forty bovine tooth crowns were flattened to a minimum plain area of 5 mm in diameter. The samples were divided in four groups of 20 specimens each: 1) human enamel; 2) bovine enamel; 3) human dentin; 4) bovine dentin. The samples of each group were divided in 2 subgroups ...
Tópico(s): Dental Research and COVID-19
2003 - UNIVERSIDADE DE SÃO PAULO | Pesquisa Odontológica Brasileira
Produção Nacional
Revisado por pares
Clecila Müller, Gabriela Cauduro da Rosa, Gabriela Simões Teixeira, Ivo Krejci, Tissiana Bortolotto, Alexandre Henrique Susin,
Abstract Objective To evaluate the influence of caries-affected dentin on bond strength of a universal one-step and a multi-step etch-and-rinse adhesive system. Material and method Enamel of 60 third human molars with and without caries was removed to expose dentin. The teeth were randomly assigned to six groups: Single Bond Universal (3M ESPE, St. Paul, MN, USA) in etch-and-rinse and in self-etch mode and Prime & Bond NT (Dentsply Co, Konstanz, Germany), all on sound and caries-affected dentin. Smear ...
Tópico(s): Dental Implant Techniques and Outcomes
2017 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Revista de Odontologia da UNESP
Produção Nacional
Revisado por pares
Guilherme Borges Bond, Rodrigo F.M. de Almeida, André Ostrensky, Carla Forte Maiolino Molento,
O bem-estar de animais de produção tem sido discutido nos âmbitos comercial, social e acadêmico, sendo que tal discussão pode ser enriquecida pela elaboração de protocolos de diagnóstico de bem-estar animal bem definidos, favorecendo a regulamentação de uma legislação específica. O objetivo desta revisão é discutir os métodos de diagnóstico de bem-estar animal e apontar os principais pontos críticos que afetam o bem-estar dos bovinos leiteiros. O diagnóstico de bem-estar compreende a observação ...
Tópico(s): Animal Disease Management and Epidemiology
2012 - UNIVERSIDADE FEDERAL DE SANTA MARIA | Ciência Rural
Produção Nacional
Revisado por pares
Rodrigo Galo, Ricardo Faria Ribeiro, Renata Cristina Silveira Rodrigues, Valéria Oliveira Pagnano, Maria da Glória Chiarello de Mattos,
Titanium reacts strongly with elements, mainly oxygen at high temperature. The high temperature of titanium laser welding modifies the surface, and may interfere on the metal-ceramic tensile bond strength.The influence of laser welding on the titanium-ceramic bonding has not yet been established. The purpose of this in vitro study was to analyze the influence of laser welding applied to commercially pure titanium (CpTi) substructure on the bond strength of commercial ceramic. The influence of airborne ...
Tópico(s): Dental Radiography and Imaging
2011 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Patrícia Pires, João Ferreira, Sofia Arantes‐Oliveira, Mário Jorge Silva, Paulo Melo,
Ozone is an important disinfecting agent, however its influence on enamel adhesion has not yet been clarified.
Tópico(s): Laser Applications in Dentistry and Medicine
2013 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Maria Malerba Colombi Humel, Marcelo Tavares de Oliveira, Vanessa Cavalli, Marcelo Giannini,
The aim of this study was to evaluate the effect of storage and disinfection methods (SDM) on bond strength (BS) to bovine dentin, using two adhesive systems: Adper Single Bond and Clearfil Protect Bond. Method: Extracted bovine teeth were assigned to the following SDM: 100% Humidity (HU); Gamma Radiation (GR); Autoclave (AU); 0.10g/mL Thymol (TH); 10% Formalin (FO); Frozen (FR); 0.2% Sodium Azide (SA) and 0.5% Chloramine T (CT) (n=10). The GR and AU groups were submitted to sterilization methods and stored ...
Tópico(s): Dental Research and COVID-19
2007 - UNIVERSIDADE ESTADUAL DE CAMPINAS | Brazilian journal of oral sciences/Brazilian Journal of Oral Sciences
Produção Nacional
Revisado por pares
Nelson Renato França Alves da Silva, Christine S. Calamia, Paulo G. Coelho, Marcela Rocha de Oliveira Carrilho, Ricardo M. Carvalho, Page W. Caufield, Van P. Thompson,
INTRODUCTION: Disinfection of dentin surfaces is desirable so long as it does not interfere with subsequent bonding of adhesive resins. OBJECTIVE: To test the null hypothesis that bond strengths to dentin are not affected by previous application of an iodine disinfecting solution. MATERIALS AND METHODS: Twenty-four extracted non-carious molars were selected. Occlusal enamel was removed producing a flat dentin substrate. Test teeth were all treated with 2% Iodine disclosing/disinfecting solution ( ...
Tópico(s): Dental Radiography and Imaging
2006 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
Marcelo Giannini, Patrícia Chaves, Marcelo Tavares de Oliveira,
This in vitro study evaluated the effect of tooth age on the tensile bond strength of Prime & Bond NT adhesive system to dentin. Human third molars from the five age groups were analyzed: A- 17 to 20yrs, B- 21 to 30yrs, C- 31 to 40yrs, D- 41 to 50yrs and E- 51 to 63yrs. The occlusal enamel was removed using a diamond saw under water cooling and the dentin surface was wet-ground with 600-grit SiC paper to obtain flat surfaces. The adhesive system was applied according to the manufacturer's instructions ...
Tópico(s): Dental Research and COVID-19
2003 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
Marcela Alvarez Ferretti, Jéssica Dias Theobaldo, Renata Pereira, Waldemir Francisco Vieira-Júnior, Gláucia María Bovi Ambrosano, Flávio Henrique Baggio Aguiar,
Objective: This study aimed to evaluate the surface microhardness and morphology, as well as the microshear bond strength of a self-etching adhesive (Clearfil SE, Kuraray) to eroded dentin, exposed or not to cigarette smoke. Forty dental crowns were divided into 4 groups (n = 10): no treatment (control) (C); erosion (E); erosion + cigarette smoke exposure (ES); cigarette smoke exposure (S). Samples were prepared through third molars polishing until dentin exposure, followed by crown section. Erosive cycles ...
Tópico(s): Dental Anxiety and Anesthesia Techniques
2020 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Brazilian Dental Science
Produção Nacional
Revisado por pares
Emilia Adriane Silva, Flávia Zardo Trindade, Hélcio Nagib José Feres Reskalla, José Renato Cavalcanti Queiroz,
This study aimed to evaluate the effects of heat treatment on the tribochemical silica coating and silane surface conditioning and the bond strength of rebonded alumina monocrystalline brackets.
Tópico(s): Endodontics and Root Canal Treatments
2013 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Mai H. Abdelrahman, Mohamed Yehia Mohamed Hassan,
Aim: this study aimed to compare the sealing ability of two types of commercially available calcium silicate bioceramic based root canal sealers and a resin based root canal sealer. Methods: Twenty one single-rooted teeth were used, samples (n= 21) were randomly divided into three groups according to the sealer used (group A; ADSEAL, group B; Wellroot, group C; Ceraseal). Roots were then cleaved longitudinally in the labiolingual direction; all samples were then sectioned at three, six, and nine mm ...
Tópico(s): Dental Radiography and Imaging
2021 - UNIVERSIDADE ESTADUAL DE CAMPINAS | Brazilian journal of oral sciences/Brazilian Journal of Oral Sciences
Produção Nacional
Revisado por pares
Alexandre Ripamonti, Eduardo Kazuo Kayo,
ABSTRACT Purpose: To study the Brazilian bond and stock markets for testing the stock market development theory of Demirgüc-Kunt and Maksimovic (1996). Originality/gap/relevance/implications: This paper tests the substitution hypothesis of stock market development, from debt to stocks, in a context of improved corporate governance, by analyzing the data with cointegration techniques. The findings show that the rejection of substitution hypothesis, as the bond market has a positive and significant ...
Tópico(s): Banking stability, regulation, efficiency
2016 - UNIVERSIDADE PRESBITERIANA MACKENZIE | RAM. Revista de Administração Mackenzie
Objective This study aims to evaluate the influence of different air-abrasion pressures and subsequent heat treatment on the flexural strength, surface roughness, and crystallographic phases of highly translucent partially stabilized zirconia (Y-PSZ), and on the tensile bond strength of resin cement to Y-PSZ. Methodology Fully sintered zirconia specimens were ground with SiC paper (control) and/or air-abraded with 50 µm particles of alumina at 0.1, 0.15, 0.2, or 0.3 MPa or left as-sintered. After ...
Tópico(s): Orthopaedic implants and arthroplasty
2020 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
ARAO Nobuaki, Keiichi Yoshida, Takashi Sawase,
Objective The study aimed to evaluate effects of air abrasion with alumina or glass beads on bond strengths of resin cements to CAD/CAM composite materials. Material and Methods CAD/CAM composite block materials [Cerasmart (CS) and Block HC (BHC)] were pretreated as follows: (a) no treatment (None), (b) application of a ceramic primer (CP), (c) alumina-blasting at 0.2 MPa (AB), (d) AB followed by CP (AB+CP), and (e) glass-beads blasting at 0.4 MPa (GBB) followed by CP (GBB+CP). The composite specimens were bonded ...
Tópico(s): Endodontics and Root Canal Treatments
2015 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
Marco Fiori-Júnior, Wilson Matsumoto, Raquel Assed Bezerra da Silva, Sizenando de Toledo Porto Neto, Jaciara Miranda Gomes Silva,
OBJECTIVE: The purpose of this study was to evaluate, by shear bond strength (SBS) testing, the influence of different types of temporary cements on the final cementation using conventional and self-etching resin-based luting cements. Material and Methods: Forty human teeth divided in two halves were assigned to 8 groups (n=10): I and V (no temporary cementation); II and VI: Ca(OH)2-based cement; III and VII: zinc oxide (ZO)-based cement; IV and VIII: ZO-eugenol (ZOE)-based cement. Final cementation ...
Tópico(s): Innovative concrete reinforcement materials
2010 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
Célia Regina Maio Pinzan‐Vercelino, Arnaldo Pinzan, Júlio de Araújo Gurgel, Fausto Silva Bramante, Luciana Maio Pinzan,
D espite the advances in bonding materials, many clinicians today still prefer to place bands on molar teeth.Molar bonding procedures need improvement to be widely accepted clinically.Objective: The purpose of this study was to evaluate the shear bond strength when an additional adhesive layer was applied on the occlusal tooth/tube interface to provide reinforcement to molar tubes.Material and methods: Sixty third molars were selected and allocated to the 3 groups: group 1 received a conventional ...
Tópico(s): Dental Implant Techniques and Outcomes
2011 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
Rafael Avellar de Carvalho Nunes, Flávia Lucisano Botelho do Amaral, Fabiana Mantovani Gomes França, Cecília Pedroso Turssi, Roberta Tarkany Basting,
Objective: the aim of the present study was to evaluate the influence of adding different concentrations of chitosan to an experimental two-step etch-and-rinse adhesive system on the bond strength and failure mode to dentin. Material and Methods: thirty-two flat dentin surfaces were obtained from extracted human third molars and divided into four groups (n=8) for application of the adhesive systems: AD - conventional two-step adhesive system (Adper Single Bond 2); EXP – experimental two-step etch-and- ...
Tópico(s): Orthodontics and Dentofacial Orthopedics
2017 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Brazilian Dental Science
Produção Nacional
Revisado por pares
Bruna Cristina do Nascimento Rechia, Ruth Peggy Bravo, Naylin Danyele de Oliveira, Flares Baratto‐Filho, Carla Castiglia Gonzaga, Carmen Lúcia Mueller Storrer,
Aim: To assess the influence of different fiberglass post surface treatments on the bond strength (BS) to root dentin. Methods: Thirty bovine root canals were endodontically treated and filled with gutta-percha and AH Plus sealer. At 24 h after the endodontic filling, the post spaces were prepared with Gates-Glidden drills and #3 drills of the DC White Post system, maintaining a 4 mm apical seal. The roots were randomly divided into three groups: S (fiberglass posts treated with silane), SA (fiberglass ...
Tópico(s): Occupational health in dentistry
2017 - UNIVERSIDADE ESTADUAL DE CAMPINAS | Brazilian journal of oral sciences/Brazilian Journal of Oral Sciences
Bilal Utku Sag, Özden Özel Bektaş,
Objective: The objective of this study was to evaluate the effect of immediate dentin sealing, bonding technique, and restorative material on the dentin bond strength of an indirect composite (Solidex) and a resin nanoceramic CAD/CAM block (LAVA Ultimate). Material and Methods: A total of 120 periodontally extracted human molar teeth were abraded horizontally and divided into two groups according to dentin sealing procedures (delayed dentin sealing [DDS] and immediate dentin sealing [IDS]). Next, all ...
Tópico(s): Dental Research and COVID-19
2020 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Brazilian Dental Science
Produção Nacional
Revisado por pares
Celina Wanderley de Abreu, Gilberto Duarte Filho, Alberto Noriyuki Kojima, Renato Morales Jóias, Alfredo Mikail Melo Mesquita,
The objective of this study was to evaluate the influence of different speeds using the piston device in the shear bond strength. 48 cylinders of composed resin had been confectioned (Solidex),and were divided randomly in four groups (n=12). The specimens were adapted to the device for the shear bond strenth test and were taken to an universal testing machine with a load cell of 1000Kg. The test were carried through with four different speeds: group A: 0,5; group B: 1,0; group C: 1,5 and group D: ...
Tópico(s): Dental Implant Techniques and Outcomes
2014 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Brazilian Dental Science
Produção Nacional
Revisado por pares
Pedro B. Schwartsburd, Jefferson Prado,
... nigrescens (Schrad.) Nees (Cyperaceae) Pedro Bond Schwartsburd, Pedro Bond Schwartsburd Universidade de São Paulo, Depto. de Botânica, Rua do ... papers by this author Pedro Bond Schwartsburd, Pedro Bond Schwartsburd Universidade de São Paulo, Depto. de Botânica, Rua do ...
Tópico(s): Botany and Plant Ecology Studies
2009 - Wiley | Taxon
Produção Nacional
Revisado por pares
Cleonice da Silveira Teixeira, Edson Alfredo, Luís Henrique de Camargo Thomé, Ricardo Gariba-Silva, Yara Teresinha Corrêa Silva‐Sousa, Manoel Damião Sousa‐Neto,
The use of an adequate method for evaluation of the adhesion of root canal filling materials provides more reliable results to allow comparison of the materials and substantiate their clinical choice. The aims of this study were to compare the shear bond strength (SBS) test and push-out test for evaluation of the adhesion of an epoxy-based endodontic sealer (AH Plus) to dentin and gutta-percha, and to assess the failure modes on the debonded surfaces by means of scanning electron microscopy (SEM). ...
Tópico(s): Dental Erosion and Treatment
2009 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Produção Nacional
Revisado por pares
The clinical success of resin bonding procedures for indirect ceramic restorations and ceramic repairs depends on the quality and durability of the bond between the ceramic and the resin. The quality of this bond will depend upon the bonding mechanisms that are controlled in part by the surface treatment that promote micromechanical and/or chemical bonding to the substrate. The objective of this review is to correlate interfacial toughness (K A) with fracture surface morphological parameters of the ...
Tópico(s): Dental Implant Techniques and Outcomes
2005 - UNIVERSIDADE DE SÃO PAULO | Journal of Applied Oral Science
Kiana Ghanadan, Sajjad Ashnagar, Ladan Ranjbar Omrani, Mansooreh Mirzaee,
Despite the increasing demand for fiber-reinforced composite (FRC) posts, their bonding to root canals is still subject to debate. Endodontic sealers may affect the bond strength between fiber posts and root canal dentin. Aim: To compare the effects of different sealers on fiber post bond strength. Methods: Sixty teeth were divided into 4 groups according to obturation method: GI, gutta-percha without any sealers; GII, gutta-percha and AH26 resin-based sealer; GIII, RealSeal point and RealSeal resin- ...
Tópico(s): Dental Radiography and Imaging
2015 - UNIVERSIDADE ESTADUAL DE CAMPINAS | Brazilian journal of oral sciences/Brazilian Journal of Oral Sciences