5 documents found, page 1 of 1
Genotypic and phenotypic analysis of S. mutans isolated from dental biofilms fo...
Arthur,Rodrigo Alex; Cury,Altair Antoninha Del Bel; Graner,Renata Oliveira Mattos; Rosalen,Pedro Luiz; Vale,Gláuber Campos; Leme,Adriana Franco PaesThe oral cavity harbors several Streptococcus mutans genotypes, which could present distinct virulence properties. However, little is known about the diversity and virulence traits of S. mutans genotypes isolated in vivo under controlled conditions of high cariogenic challenge. This study evaluated the genotypic diversity of S. mutans isolated from dental biofilms formed in vivo under sucrose exposure, as well ...
Effect of 10% carbamide peroxide bleaching on sound and artificial enamel cario...
Pinto,Cristiane Franco; Leme,Adriana Franco Paes; Cavalli,Vanessa; Giannini,MarceloThis study evaluated the effect of 10% carbamide peroxide (CP) bleaching on Knoop surface microhardness (KHN) and morphology of sound enamel and enamel with early artificial caries lesions (CL) after pH-cycling model (pHcm). Human dental enamel blocks were randomly divided into 6 groups (n=10): 1 - sound enamel bleached (S) with CP (Rembrandt/Den-Mat); 2 - S and submitted to pHcm; 3 - CL bleached with CP; 4 - C...
Genotypic diversity of S. mutans in dental biofilm formed in situ under sugar s...
Arthur,Rodrigo Alex; Tabchoury,Cínthia Pereira Machado; Mattos-Graner,Renata de Oliveira; Del Bel Cury,Altair A.; Leme,Adriana Franco PaesIn situ dental biofilm composition under sugar exposure is well known, but sugar effect on the genotypic diversity of S. mutans in dental biofilm has not been explored. This study evaluated S. mutans genotypic diversity in dental biofilm formed in situ under frequent exposure to sucrose and its monosaccharide constituents (glucose and fructose). Saliva of 7 volunteers was collected for isolation of S. mutans an...
Effect of carbamide peroxide-based bleaching agents containing fluoride or calc...
Giannini,Marcelo; Silva,Alessandra Peres; Cavalli,Vanessa; Leme,Adriana Franco PaesOBJECTIVE: The aim of this study was to evaluate the effects of carbamide peroxide-based bleaching agents (CPG) containing fluoride (CF) or calcium (CCa) on the ultimate tensile strength of enamel (UTS). METHOD: A "cube-like" resin composite structure was built-up on the occlusal surface of twenty-two sound third molars to facilitate specimen preparation for the micro-tensile test. The restored teeth were seria...
Alkali-soluble fluoride deposition on enamel after professional application of ...
Hayacibara,Mitsue Fujimaki; Leme,Adriana Franco Paes; Lima,Ynara Bosco de Oliveira; Gonçalves,Nilza Cristina Lopez Afonso Valor; Queiroz,Celso SilvaSince the efficacy of topical fluoride products is related to the fluoride (F) availability and its reactivity with enamel, this study was conducted. The F concentration of the following materials was verified: I- acidulated phosphate fluoride (APF) gel (1.23% F), II- APF foam (1.23% F) and III- Varnish (2.26% F). Forty blocks of bovine enamel were divided into 4 groups and treated according to the materials de...