Banca de QUALIFICAÇÃO: ANDRESSA EVELINE DE LIMA RIBEIRO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANDRESSA EVELINE DE LIMA RIBEIRO
DATA : 30/05/2019
HORA: 15:00
LOCAL: DOD - Departamento de Odontologia da UFRN
TÍTULO:

EVALUATION OF MECHANICAL PROPERTIES IN EXTENSIVE CAVITIES RESTORED BY DIFFERENT RESTORATIVE TECHNIQUES

 

PALAVRAS-CHAVES:

Keywords:CompositeResins, Dental RestorationFailure, MechanicalStress

PÁGINAS: 32
GRANDE ÁREA: Ciências da Saúde
ÁREA: Odontologia
SUBÁREA: Clínica Odontológica
RESUMO:

INTRODUCTION: Restorativetechniquesmake a fundamental role in theclinicallongevityofrestorations, especially in extensivecompositeresincavities. OBJECTIVE: The purposeofthisstudywastoevaluatethemechanicalbehaviorofdifferentrestorativetechniques in extensivecavities. METHODS: A total of 120 bovineincisiveswereused, wherethepulpcavitywasprepared in a conicalformat, with a depthof4mm, performedwith a Maxicuttip in ordertostandardizethesamples. Theyweredividedinto 6 groups: G1: Directtechniquewithbulk fillresin 24hs; G2: Semidirecttechniqueresin Z250XT 24hs; G3: Directtechniquewith Z250XT resin 24hs; G4: Directtechniquewith bulk fillresin 6 months; G5: Semidirecttechniqueresin Z250XT 6 months; G6: Directtechniquewith Z250XT resin 24hs. The testsperformedwere: VickersMicrohardness (VM), nanoleakage (NK) andbondstrength (BS). The data wereanalyzedthroughdescriptiveandinferentialstatisticsusingOne Way ANOVA andTukey'sTwo Way ANOVA with Post Hoc. RESULTS: For BS, therewas a statisticallysignificantdifferencebetweenthedifferentrestorativetechniques (p <0.005), andtherewas no significantdifference in aging time (p> 0.005). For VM, a statisticallysignificantdifferencewasobservedbetweenthe single andconventional incremental techniques, withbetterresults for theconventionaltechnique (p <0.005). At NK, thesemidirecttechniquedidnot show concentrationofsilvercrystalsattheadhesive interface, thusdemonstratingbetterresultsthanconventionaland single filltechniques. CONCLUSION: Comparingtheconventionalrestorativetechniquewiththesemidirectrestorativetechnique, thefirstoneobtainedbetterresults in relationtomicrohardnessandthe semidireta techniqueobtainedbetterresults in thetestsofbondstrengthandnanoinfiltration.

 

 

 

MEMBROS DA BANCA:
Presidente - 2292784 - ISAUREMI VIEIRA DE ASSUNCAO
Externa ao Programa - 2315413 - CLAUDIA TAVARES MACHADO CUNHA
Externa ao Programa - 2966816 - MARILIA REGALADO GALVAO RABELO CALDAS