11 documents found, page 1 of 2
Avaliação do efeito de técnicas de acabamento e polimento na rugosidade superfi...
Lira, Renato Queiroz Nogueira; Lemos, Marcelo Victor Sidou; Mendes, Talita Arrais Daniel; Neri, Jiovanne Rabelo; Mendonça, Juliano SartoriIntroduction: finishing and polishing of composite resins (CR) can directly interfere with the roughness of these materials, being related to bacterial plaque adhesion, staining, gloss and smoothness. Objective: to compare the surface roughness of two CR, a micro-hybrid (Filtek Z250) and a nanoparticulate (Filtek Z350) after finishing and polishing. Methods: using a metal matrix, fifteen disks of each CR were m...
Ácido tânico como agente biomodificador de dentina
Mendes, Talita Arrais Daniel; Pascoal, Samuel Chillavert Dias; Lemos, Marcelo Victor Sidou; Santiago, Sérgio Lima; Mendonça, Juliano SartoriIntroduction: The use of different polyphenols in the increase of the mechanical properties of dentin collagen has been widely used, thus, tannic acid being a polyphenol with very pronounced biological proprieties. Objective: to evaluate the biomodifying potential of tannic acid (AT) in different concentrations in dentin collagen. Methods: the factors under investigation were modulus of elasticity, measured by ...
Advances and challenges in oral biofilm control
Panariello, Beatriz Helena Dias; Costa, Cecilia Atem Gonçalves de Araújo; Pavarina, Ana Cláudia; Santiago, Sérgio Lima; Duarte, DuartePurpose of Review The paper aims to critically study the lit- erature published over the past 3 years as relevant to oral biofilm control. The emphasis of this review is the interests and importance of new findings, seeking the following an- swers: (i) what is the major challenge in oral biofilm control?, (ii) what are the new anti-biofilm approaches?, and (iii) what are the further researches? Recent Findings ...
Active compounds and derivatives of camellia sinensis responding to erosive att...
Passos, Vanara Florêncio; Melo, Mary Anne Sampaio de; Lima, Juliana Paiva Marques; MarçaL, Felipe Franco; Costa, Cecília Atem Gonçalves de AraújoThis research explored the potential of Camellia sinensis-derived teas and active compounds to be used as treatments to prevent dentin wear. Human root dentin slabs were randomly assigned to 5 groups (n = 10) as follows: distilled water (DW, control), epigallocatechin-3-gallate (EGCG), theaflavin gallate derivatives (TF), commercial green tea (GT), and commercial black tea (BT). The samples were submitted to a ...
Synthesis and characterization of a newmethacrylate monomer derived from the ca...
Moreira, Madiana Magalhães; Silva, Lucas Renan Rocha da; Mendes, T alita Arrais Daniel; Santiago, Sérgio Lima; Mazzetto, Selma ElaineObjective. The aim of this study was to synthesize, to characterize and to evaluate the effectson tubular occlusion of new monomer derived from cashew nut shell liquid (CNSL), alsostudying the effects of acid challenge (AC) on dentin surfaces treated with desensitizers.Methods. The intermediary cardanol-epoxy (CNE) was synthesized through epoxidation ofCNSL, followed by synthesis of cardanol-methacrylate-epoxy ...
Effect of green tea as a protective measure against dental erosion in coronary ...
Moraes, Maria Denise Rodrigues de; Carneiro, Jéssica Rodrigues Mendes; Passos, Vanara Florêncio; Santiago, Sérgio LimaThe aim of this study was to evaluate the effect of green tea as a protective measure on eroded dentin. Disks of human coronary dentin were selected based on surface hardness and randomly assigned to 3 groups (n = 10): DW - distilled water, CHX - 0.2% chlorhexidine digluconate, and GT - green tea. The disks were allowed to acquire pellicle for 2 hours and were then subjected to 3 cycles per day of demineralizat...
Methodologies to analyze the micromorphological alterations of enamel subjected...
Passos, Vanara Florêncio; Santiago, Sérgio LimaThe incidence of caries has declined; however, other dental lesions such as tooth wear are becoming increasingly important. Dental wear is a multifactorial process that may encompass erosion, abrasion, and combinations thereof. Therefore, various methodologies have been applied to evaluate the loss of dental hard tissue and the surface-softened zone in enamel induced by abrasive and erosive challenges. In this ...
Effect of oxalic acid pre-treatment in restorations of non-carious cervical les...
Souza, André Mattos Brito de; Colares, Regina Cláudia Ramos; Mendonça, Juliano Sartori; Rodrigues, Lidiany Karla Azevedo; Santiago, Sérgio LimaNon-carious cervical lesions are usually associated with dentin hypersensitivity. The use of oxalic acid in restorations of these lesions could be beneficial in relieving pain. Aims: To evaluate the use of oxalic acid in restorations of non-carious cervical lesions. Settings and Design: A randomized clinical trial. Subjects and Methods: One operator placed 90 restorations in 20 volunteers of both sexes, with at...
Effect of chlorhexidine on the bond strength of a self-etch adhesive system to ...
Melo, Mary Anne Sampaio de; Goes, Diego da Costa; Moraes, Maria Denise Rodrigues de; Santiago, Sérgio Lima; Rodrigues, Lidiany Karla AzevedoThis study evaluated the effect of a 2% chlorhexidine-based disinfectant (CHX) on the short-term resin-dentin bond strength of a self-etch adhesive system to human dentin with different mineral contents. Dentinal mineralization was tested at 4 levels (sound, and after 2, 4, or 8 days of demineralization-remineralization cycles) and disinfectant at 2 levels [deionized water (DW, negative control) and CHX]. Denti...
Effect of surface pretreatments on the microtensile bond strength of lithium-di...
Colares, Regina Cláudia Ramos; Neri, Jiovanne Rabelo; Souza, André Mattos Brito de; Pontes, Karina Matthes de Freitas; Mendonça, Juliano SartoriThe aim of this study was to evaluate the influence of ceramic surface treatments and silane drying temperature on the microtensile bond strength (μTBS) of a resin composite to a lithium disilicate ceramic. Twenty blocks (7x7x5 mm) of lithium disilicate-based hotpressed ceramic were fabricated and randomly divided into 4 groups: G1: acid etching with 9.5% hydrofluoric acid for 20 s and drying silane with room-t...