Please use this identifier to cite or link to this item: http://monografias.ufrn.br/jspui/handle/123456789/999
Title: Efeito da lubrificação de instrumentos de escultura de compósitos dentais sobre o grau de conversão e densidade de ligações cruzadas
Other Titles: Effect of the lubrication of dental composite modeling instruments on the degree of conversion and cross-linking density
Authors: Paula, Felipe Costa de
Valentim, Regis de Souza
Keywords: Dentistry;Dental Impression Materials;Composite Resins
Issue Date: 24-Nov-2014
Publisher: Odontologia
Citation: PAULA, Felipe Costa de; VALENTIM, Regis de Souza. Efeito da lubrificação de instrumentos de escultura de compósitos dentais sobre o grau de conversão e densidade de ligações cruzadas. 2014. Monografia (Graduação) - Departamento de Odontologia, Universidade Federal do Rio Grande do Norte, Natal, 2014
Abstract: This study aimed to analyze the effect of the lubrication of dental composite modeling instruments of different lubricants on the degree of conversion and crosslink density, during incremental technique of manipulation of composite resin. The following parameters were varied: 1) types of composite resins based on different monomers, these being Filtek Z-350 XT and the Empress Direct: polymerized using single increment for 20 seconds; 2) types of lubricants employed to avoid (or reduce) the adhesion of composite instruments: Adper Single Bond 2 (SB), Scotchbond Multi-Purpose (MP), 70% Ethanol (70E), Absolute Ethanol (AE). No lubricant was used in the control group (CT). The Degree of Conversion (DC) and Crosslink Density (CLD) were measured. The laboratory results showed that Filtek did not change the degree of conversion, however, showed changes in crosslink density only when the MP was used while the Empress Direct unchanged both at DC and in CLD. Regarding lubricants measured the absolute alcohol showed no smaller effect on the properties researched in the study indicating a better clinical performance. The Filtek appeared less sensitive to the effects of lubricants used and the use of absolute alcohol can safely done by dentists in clinical routine.
Description: Maria Cristina dos Santos Medeiros; Boniek Castillo Dutra Borges; Alex José Souza dos Santos
URI: http://monografias.ufrn.br:8080/jspui/handle/123456789/999
Appears in Collections:Odontologia

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