9 documents found, page 1 of 1
Retrospective study to evaluate the treatment of digital pulp lesions using a h...
Santos,Tarsila Pagnan Silva dos; Oliveira,Marcelo Tavares de; Angelini,Luiz CarlosABSTRACT Objective: To assess the homodigital flap surgical procedure, as well as the function of the finger, pain, sensation, esthetics, and patient satisfaction. Method: Retrospective analysis of records and questionnaires of patients who underwent this surgical technique between the months of May 2013 and October 2016. Eight were included in the study, with an average follow-up period of 23 months. Patients ...
Silorane- and high filled-based"low-shrinkage" resin composites: shrinkage, fle...
Arrais,Cesar Augusto Galvão; Oliveira,Marcelo Tavares de; Mettenburg,Donald; Rueggeberg,Frederick Allen; Giannini,MarceloThis study compared the volumetric shrinkage (VS), flexural strength (FS) and flexural modulus (FM) properties of the low-shrinkage resin composite Aelite LS (Bisco) to those of Filtek LS (3M ESPE) and two regular dimethacrylate-based resin composites, the microfilled Heliomolar (Ivoclar Vivadent) and the microhybrid Aelite Universal (Bisco). The composites (n = 5) were placed on the Teflon pedestal of a video-...
Adhesive bonding of resin cements to cast titanium with adhesive primers
Di Francescantonio,Marina; Oliveira,Marcelo Tavares de; Daroz,Luiz Gustavo Dias; Henriques,Guilherme Elias Pessanha; Giannini,MarceloThe purpose of this study was to evaluate the effects of adhesive primer applications on the bond strength of resin cements to cast titanium. Four adhesive primers - Metaltite, Metal Primer II, Alloy Primer and Ceramic Primer - and their respective resin cements - Bistite II DC, Link Max, Panavia F 2.0, RelyX Unicem and RelyX ARC - were tested. Cast plates were prepared from titanium ingots (n=6 specimens/cemen...
Effect of adhesive system and application strategy on reduction of dentin perme...
Carvalho,Adriana Oliveira; Oliveira,Marcelo Tavares de; Nikaido,Toru; Tagami,Junji; Giannini,MarceloThis study evaluated the effect of adhesive systems and application strategies on dentin hydraulic conductance (HC). The buccal enamel was removed from bovine incisors to simulate laminate cavity preparations. After removing the roots and the coronal pulp, the buccal dentin was treated with EDTA solution (0.5 M) for 5 minutes, rinsed, ultrasonicated for 12 minutes and connected to a permeability device. HC of t...
SEM analysis of the acid-etched enamel patterns promoted by acidic monomers and...
Shinohara,Mirela Sanae; Oliveira,Marcelo Tavares de; Hipólito,Vinícius Di; Giannini,Marcelo; Goes,Mario Fernando deABSTRACT OBJECTIVE: Although self-etching bonding systems (SES) are indicated to prepare dental enamel for bonding, concerns have been expressed regarding their effectiveness. The aim of this study was to analyze the etching pattern (EP) of nine SES in comparison with 35% and 34% phosphoric acid etchants (FA) on intact (IN) and ground (GR) enamel surface. MATERIALS AND METHODS: Twenty-two human third molars wer...
Tratamento da pseudo-artrose do terço distal do rádio
Grecco,Marco Aurélio Sertório; Angelini,Luis Carlos; Oliveira,Marcelo Tavares de; Trombini,Nelson; Martins,Francisco CarlosOs autores apresentaram um estudo prospectivo de quatro pacientes portadores de pseudo-artrose no terço distal do rádio. Dois eram do sexo feminino e dois do masculino, com idade média de 42,5 anos. O diagnóstico de pseudo-artrose foi realizado em média com 5,3 meses após o trauma. Um paciente apresentava, como antecedente mórbido pessoal, epilepsia e osteoporose, outros dois relataram tabagismo e obesidade e o...
Estudo de modelagem molecular de complexos ferriprotoporfirina-IX e quinolinoca...
Silva,Thais Horta Álvares da; Oliveira,Marcelo Tavares de; Santos,Hélio Ferreira dos; Oliveira,Alaíde Braga de; De Almeida,Wagner BatistaQuinine and quinidine are well-known 4-quinolinecarbinolamines that exhibit antimalarial activity, but, in contrast, their epimers 9-epiquinine and 9-epiquinidine are almost inactive. Literature data are conflicting in describing the 4-quinolinecarbinolamine interaction mode with the molecular target, the ferriprotoporphyrin IX [Fe(III)PPIX]. In the present paper, a pharmacophore is proposed based on the bindin...
Effect of surface treatments of laboratory-fabricated composites on the microte...
Soares,Carlos José; Giannini,Marcelo; Oliveira,Marcelo Tavares de; Paulillo,Luis Alexandre Maffei Sartini; Martins,Luis Roberto MarcondesThe purpose of this study was to evaluate the influence of different surface treatments on composite resin on the microtensile bond strength to a luting resin cement. Two laboratory composites for indirect restorations, Solidex and Targis, and a conventional composite, Filtek Z250, were tested. Forty-eight composite resin blocks (5.0 x 5.0 x 5.0mm) were incrementally manufactured, which were randomly divided in...
Effect of tooth age on bond strength to dentin
Giannini,Marcelo; Chaves,Patrícia; Oliveira,Marcelo Tavares deThis 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 ob...