Apical Sealing
Mostrando 13-24 de 49 artigos, teses e dissertações.
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13. Avaliação do selamento e transporte apical em dentes humanos com canais preparados com o sistema rotatório MTWO® com e sem ampliação foraminal : estudo in-vivo / Evaluation of apical sealing and transportation in human teeth prepared by MTWO® rotatory system with and without foraminal enlargement : in vivo study
O objetivo deste estudo in vitro foi avaliar o selamento apical após obturação endodôntica, em dentes humanos preparados com e sem ampliação do forame apical, com o Sistema Rotatório Mtwo® (VDW, Munique, Alemanha). Vinte prémolares inferiores foram divididos em dois grupos. No Grupo I, os canais radiculares foram preparados 1mm além do forame apica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/02/2012
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14. Adaptação e selamento apical da obturação com cones de guta-percha de diferentes conicidades após duas técnicas de instrumentação / Adaptation and apical sealing of obturation with gutta-percha after two tapers of different instrumentation techniques
O objetivo desse estudo foi avaliar o preenchimento e selamento apical da obturação com cones de guta-percha de diferentes conicidades, após o preparo químico-mecânico com batente apical e preparo cônico contínuo. Foram utilizadas 90 raízes mesiais de molares inferiores com dois canais e forames distintos. As raízes foram divididas em seis grupos de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/01/2012
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15. Influence of prior 810-nm-diode intracanal laser irradiation on hydrophilic resin-based sealer obturation
Dentin wall structural changes caused by 810-nm-diode laser irradiation can influence the sealing ability of endodontic sealers. The objective of this study was to evaluate the apical leakage of AH Plus and RealSeal resin-based sealers with and without prior diode laser irradiation. Fifty-two single-rooted mandibular premolars were prepared and divided into
Brazilian Oral Research. Publicado em: 19/06/2012
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16. 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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17. 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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18. Conventional dual-cure versus self-adhesive resin cements in dentin bond integrity
During post preparation, the root canal is exposed to the oral cavity, and endodontic treatment may fail because of coronal leakage, bacterial infection and sealing inability of the luting cement. OBJECTIVE: this study quantified the interfacial continuity produced with conventional dual-cure and self-adhesive resin cements in the cervical (C), medium (M) an
J. Appl. Oral Sci.. Publicado em: 24/06/2011
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19. Apical sealing of root canal fillings performed with five different endodontic sealers: analysis by fluid filtration
OBJECTIVES: To evaluate the sealing ability of five root canal sealers, including two experimental cements (MBP and MTA-Obtura) using the fluid filtration method. MATERIAL AND METHODS: Teeth were divided into 5 study groups: G1-AH Plus; G2-Acroseal; G3Sealapex; G4-MBP; G5-MTA-Obtura; and two controls. Chemical-mechanical preparation was performed with ProFil
J. Appl. Oral Sci.. Publicado em: 03/06/2011
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20. 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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21. The effect of irrigation solutions on the apical sealing ability in different root canal sealers
The aim of this study was to assess the effect of three root canal irrigation solutions on the apical sealing ability of three root canal obturation materials: gutta-percha/AH plus or MM-seal and Resilon/Epiphany SE. A total of 100 teeth with single straight root canals were randomly divided into three equal groups of 30 samples each, with the other 10 teeth
Brazilian Oral Research. Publicado em: 2010-06
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22. Sealing ability, marginal adaptation and their correlation using three root-end filling materials as apical plugs
OBJECTIVE: This study used dye leakage assay and scanning electron microscopy to evaluate, respectively, the sealing ability and marginal adaptation of three root-end filling materials used as apical plugs, as well as the possible correlation between these properties. MATERIAL AND METHODS: Ninety-eight single-rooted human teeth were prepared to simulate an o
Journal of Applied Oral Science. Publicado em: 2010-04
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23. Sealing ability of MTA and amalgam in different root-end preparations and resection bevel angles: an in vitro evaluation using marginal dye leakage
Este estudo in vitro avaliou o efeito de diferentes ângulos de apicectomia, instrumentos utilizados na retrocavitação e materiais odontológicos usados na retrobturação sobre selamento apical. Oitenta dentes unirradiculares, tratados endodonticamente, foram apicectomizados. Quarenta raízes tiveram seu ápice radicular seccionado com angulação de 45º
Brazilian Dental Journal. Publicado em: 2010
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24. Influência da técnica e do momento de realização do preparo para pino na capacidade de selamento do remanescente de obturação : avaliação microbiológica in vitro = Effect of timing and method of post space preparation on sealing ability of remaining root filling material : in vitro microbiological study / Effect of timing and method of post space preparation on sealing ability of remaining root filling material : in vitro microbiological study
O objetivo deste estudo foi avaliar qual o melhor momento para confecção do espaço para retentor intra-radicular, as técnicas existentes e, destas, qual a mais indicada quando se refere à preservação do selamento apical, através da avaliação da infiltração bacteriana. Para a análise, foram usados 66 dentes monorradiculares. Suas coroas foram rem
Publicado em: 2010