Microleakage evaluation of composite restorations submitted to load cycling

The aim of this research was to evaluate the load cycling influence in resin composite restorations through marginal leakage analysis, in enamel and cementum. Forty bovine incisors were allocated in four groups (n=10): I – Z250 resin composite / Single Bond adhesive system; II – Charisma resin compo...

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Main Authors: Luis Felipe Jochims Schneider, Rubens Nisie Tango, Fábio Machado Milan, George Valdemar Mundstock, Simonides Consani, Mário Alexandre Coelho Sinhoreti
Format: Article
Language:English
Published: Universidade Estadual Paulista 2010-08-01
Series:Brazilian Dental Science
Online Access:https://ojs.ict.unesp.br/index.php/cob/article/view/213
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author Luis Felipe Jochims Schneider
Rubens Nisie Tango
Fábio Machado Milan
George Valdemar Mundstock
Simonides Consani
Mário Alexandre Coelho Sinhoreti
author_facet Luis Felipe Jochims Schneider
Rubens Nisie Tango
Fábio Machado Milan
George Valdemar Mundstock
Simonides Consani
Mário Alexandre Coelho Sinhoreti
author_sort Luis Felipe Jochims Schneider
collection DOAJ
description The aim of this research was to evaluate the load cycling influence in resin composite restorations through marginal leakage analysis, in enamel and cementum. Forty bovine incisors were allocated in four groups (n=10): I – Z250 resin composite / Single Bond adhesive system; II – Charisma resin composite / Gluma One Bond adhesive system; III - Z250 resin composite / Single Bond adhesive system submitted to 1,000 cycles (10Kgf); group IV - Charisma resin composite / Gluma One Bond adhesive system submitted to 1,000 cycles. The class V restorations were located at cementum-enamel junction and the load was applied on the incisal edge. The samples were immersed in 2% buffered methylene blue solution. The samples were cross-sectioned and the leakage, which received a score, was evaluated through stereomicroscope (45 X ). Data were submitted to Kruskal-Wallis’ test (5%). Analysis showed no statistical differences among margins localized in enamel or in cementum, for loaded and unloaded groups (p>0,05). However, enamel showed better results than cementum in the same sample (p<0,05).Load cycling did not increase the microleakage in enamel or in cement margins. Comparing the infiltration degree in the same sample, the staining solution penetration was higher in cementum margins, for both loaded and unloaded groups.
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publisher Universidade Estadual Paulista
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series Brazilian Dental Science
spelling doaj-art-59cd43abb53c49169b01f58c8fc4df972025-08-22T17:33:32ZengUniversidade Estadual PaulistaBrazilian Dental Science2178-60112010-08-017410.14295/bds.2004.v7i4.213Microleakage evaluation of composite restorations submitted to load cyclingLuis Felipe Jochims SchneiderRubens Nisie TangoFábio Machado MilanGeorge Valdemar MundstockSimonides ConsaniMário Alexandre Coelho SinhoretiThe aim of this research was to evaluate the load cycling influence in resin composite restorations through marginal leakage analysis, in enamel and cementum. Forty bovine incisors were allocated in four groups (n=10): I – Z250 resin composite / Single Bond adhesive system; II – Charisma resin composite / Gluma One Bond adhesive system; III - Z250 resin composite / Single Bond adhesive system submitted to 1,000 cycles (10Kgf); group IV - Charisma resin composite / Gluma One Bond adhesive system submitted to 1,000 cycles. The class V restorations were located at cementum-enamel junction and the load was applied on the incisal edge. The samples were immersed in 2% buffered methylene blue solution. The samples were cross-sectioned and the leakage, which received a score, was evaluated through stereomicroscope (45 X ). Data were submitted to Kruskal-Wallis’ test (5%). Analysis showed no statistical differences among margins localized in enamel or in cementum, for loaded and unloaded groups (p>0,05). However, enamel showed better results than cementum in the same sample (p<0,05).Load cycling did not increase the microleakage in enamel or in cement margins. Comparing the infiltration degree in the same sample, the staining solution penetration was higher in cementum margins, for both loaded and unloaded groups. https://ojs.ict.unesp.br/index.php/cob/article/view/213
spellingShingle Luis Felipe Jochims Schneider
Rubens Nisie Tango
Fábio Machado Milan
George Valdemar Mundstock
Simonides Consani
Mário Alexandre Coelho Sinhoreti
Microleakage evaluation of composite restorations submitted to load cycling
Brazilian Dental Science
title Microleakage evaluation of composite restorations submitted to load cycling
title_full Microleakage evaluation of composite restorations submitted to load cycling
title_fullStr Microleakage evaluation of composite restorations submitted to load cycling
title_full_unstemmed Microleakage evaluation of composite restorations submitted to load cycling
title_short Microleakage evaluation of composite restorations submitted to load cycling
title_sort microleakage evaluation of composite restorations submitted to load cycling
url https://ojs.ict.unesp.br/index.php/cob/article/view/213
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AT simonidesconsani microleakageevaluationofcompositerestorationssubmittedtoloadcycling
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