Apical Microleakage
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Apical microleakage of different root canal sealers after use of maleic acid and EDTA as final irrigants
This study aimed to compare the effects of ethylenediaminetetraacetic acid (EDTA) and maleic acid (MA) on the sealing ability of various root canal sealers. Eighty root canals were instrumented and irrigated with either EDTA or MA. They were divided into eight experimental groups and obturated as follows: Group 1: MA + Hybrid Root SEAL/gutta-percha. Group 2:
Braz. oral res.. Publicado em: 15/09/2014
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2. The sealing ability of MTA apical plugs exposed to a phosphate-buffered saline
OBJECTIVE: The aim of this study was to evaluate the influence of exposure of the mineral trioxide aggregate (MTA) - with and without calcium chloride (CaCl2) - to phosphate-buffered saline (PBS) on the apical microleakage using a glucose leakage system. MATERIAL AND METHODS: Sixty root segments were randomly divided into 4 experimental groups (n=15). Af
J. Appl. Oral Sci.. Publicado em: 2013-07
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3. Qualitative SEM/EDS analysis of microleakage and apical gap formation of adhesive root-filling materials
OBJECTIVE: The aim of this study was to compare the correspondence between gap formation and apical microleakage in root canals filled with epoxy resin-based (AH Plus) combined or not with resinous primer or with a dimethacrylate-based root canal sealer (Epiphany). MATERIAL AND METHODS: Thirty-nine lower single-rooted human premolars were filled by the later
Journal of Applied Oral Science. Publicado em: 2012-06
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4. Influência do alargamento foraminal na anatomia apical e na qualidade de selamento após obturação / Influence of apical foramen widening on apical foramen morphology and apical sealing
Introduction: The aim of this study was to evaluate the influence of the working length and apical foramen widening on the anatomy of the apical foramen and on the sealing ability after root canal filling. Methods: Fifty-five palatal roots of maxillary molars were selected. The samples were randomly divided into three groups (n=15) according to the different
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/04/2011
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5. Evaluation of three instrumentation techniques at the precision of apical stop and apical sealing of obturation
OBJECTIVE: The aim of this study was to investigate the ability of two NiTi rotary apical preparation techniques used with an electronic apex locator-integrated endodontic motor and a manual technique to create an apical stop at a predetermined level (0.5 mm short of the apical foramen) in teeth with disrupted apical constriction, and to evaluate microleakag
J. Appl. Oral Sci.. Publicado em: 03/06/2011
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6. Nd:YAG laser irradiation effect on apical intracanal dentin - a microleakage and SEM evaluation
The purpose of this in vitro study was to evaluate the effect of neodymium:yttrium-aluminum-garnet (Nd:YAG) laser irradiation on intracanal dentin surface by SEM analysis and its interference in the apical seal of filled canals. After endodontic treatment procedures, 34 maxillary human incisors were randomly assigned to 2 groups. In the negative control grou
Brazilian Dental Journal. Publicado em: 2011
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7. Apical microleakage and SEM analysis of dentin surface after 980 nm diode laser irradiation
Este estudo avaliou o efeito do laser de diodo 980 nm na microinfiltração apical e na morfologia intrarradicular da dentina. Raízes de 110 incisivos inferiores foram utilizadas no estudo: 92 para o teste de microinfiltração e 18 para microscopia eletrônica de varredura (MEV). As raízes foram divididas em 3 grupos de acordo com a solução irrigante (�
Brazilian Dental Journal. Publicado em: 2011
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8. IN VITRO COMPARITIONS OF DIFERENT MARTERIALS USED IN RETROFILLINGS. / COMPARAÇÃO IN VITRO DE DIFERENTES MATERIAIS USADOS EM RETROBTURAÇÕES
Esta pesquisa teve por alvo a avaliação de três diferentes materiais, in vitro, quanto à sua capacidade de selamento em retrobturações. A amostra foi constituída por 30 dentes monorradiculares, tendo, primeiramente, realizado tratamento endodôntico e posteriormente apicetomizados a três mm do ápice, em um ângulo de 90 em relação ao seu longo eix
Publicado em: 2010
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9. Effect of immediate and delayed post space preparation on the apical seal of root canals obturated with different sealers and techniques
During mechanical preparation of the post space, the root canal filling may be twisted or vibrated, depending on several factors associated with the preparation technique and quality of filling. OBJECTIVE: The purpose of this study was to investigate the effect of immediate and delayed post space preparation on the integrity of the apical seal. MATERIAL AND
Journal of Applied Oral Science. Publicado em: 2009-12
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10. Sealing ability of castor oil polymer as a root-end filling material
OBJECTIVE: The purpose of this study was to evaluate the sealing ability of castor oil polymer (COP), mineral trioxide aggregate (MTA) and glass ionomer cement (GIC) as root-end filling materials. Forty-five single-rooted human teeth were cleaned and prepared using a step-back technique. The apical third of each root was resected perpendicularly to the long
Journal of Applied Oral Science. Publicado em: 2009-06
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11. High power lasers Influence in bacterial and fungical microleakage in MTA retrofills / Influência da irradiação com lasers de alta potência na microinfiltração bacteriana e fúngica em dentes humanos retrobturados com MTA
Este estudo experimental avaliou, in vitro, a microinfiltração de E. faecalis e C. albicans em raízes cujas superfícies apicais ressectadas e retropreparadas para obturação retrógrada sofreram irradiação dos lasers Nd:YAG, Diodo 810 nm e Er,Cr:YSGG, e posteriormente retrobturadas com MTA. Setenta raízes foram instrumentadas, obturadas endodonticame
Publicado em: 2008
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12. Cimentos resinosos endodônticos: selamento apical, aspectos micromorfológicos, características físicas e resistência de união à dentina / Resin-based root canal sealers: apical sealing, micromorphological aspects, physical characteristics and bond strength to dentin
Resin-based root canal sealers had their apical sealing, micromorphological aspects, physical characteristics and bond strength to dentin evaluated in this study. For this purpose, seventy-two single-rooted human premolars were endodontically treated. Thirty-three teeth were randomly divided into three groups, externally coated with nail varnish and obturate
Publicado em: 2007