Apical Plug
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Apical Barrier Formation After Incomplete Orthograde MTA Apical Plug Placement in Teeth with Open Apex - Report of Two Cases
Two cases are reported in which incomplete placement of 4 mm mineral trioxide aggregate (MTA) plug was performed unintentionally at the apical third of permanent immature teeth with open apex and apical periodontitis. As confirmed radiographically, there were gaps between MTA and dentinal walls along the MTA-dentin interface. After setting of MTA was confirm
Braz. Dent. J.. Publicado em: 2013-04
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2. Apexification with white MTA in an immature permanent tooth with dens invaginatus
Dens invaginatus, also known as "dens in dente", is a developmental dental anomaly resulting in an invagination of the enamel organ into the dental papilla. These cases present technical difficulties to the root canal treatment. Apexification using an apical plug of mineral trioxide aggregate (MTA) has been indicated as an alternative to long-term intracanal
Braz. J. Oral Sci.. Publicado em: 2013-03
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3. Healing of a tooth with an overinstrumented apex, extensive transportation and periapical lesion using a 5 mm calcium hydroxide apical plug: an 8-year follow-up report
Além do risco de extrusão periapical de material obturador pelo ápice, pode ser difícil conseguir um bom selamento apical em dentes com rizogênese incompleta ou alargamentos iatrogênicos da constrição apical. Casos assim representam um desafio durante a obturação do canal. Este caso clínico descreve a obturação de um canino superior direito com
Braz. Dent. J.. Publicado em: 2012-10
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4. Mineral trioxide aggregate as an apical plug in infected immature teeth: a case series
OBJETIVO: O objetivo desse artigo é descrever três casos clínicos de dentes com rizogênese incompleta e necrose pulpar tratados com agregado trióxido mineral (MTA) para obtenção de barreira de selamento apical. DESCRIÇÃO DOS CASOS: Todos os casos relatados apresentaram interrupção da formação radicular como consequência da necrose pulpar. Os ca
Revista Odonto Ciência. Publicado em: 2011
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5. 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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6. Ultrastructural features of Mimulus aurantiacus (Scrophulariaceae) pollen tubes in vivo
O objetivo deste estudo é informar sobre a ultraestrutura de tubos de pólen de Mimulus aurantiacus in vivo coletados no "Botanical Garden" da Universidade da Califórnia em Berkeley. O material foi preparado de acordo com os métodos de microscopia eletrônica e examinado em microscópio eletrônico Zeiss. Quatro zonas dos tubos de pólen de Mimulus aurant
Anais da Academia Brasileira de Ciências. Publicado em: 2009-03
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7. Sealing ability of grar MTA AngelusTM, CPM TM and MBPc used as apical plugs
This study evaluated the sealing ability of apical plugs fabricated with gray MTA AngelusTM sealer, CPM TM sealer and MBPc sealer. The root canals of 98 extracted single-rooted human teeth were instrumented with #5 to #1 Gates Glidden drills according to the crown-down technique until the #1 drill could pass through the apical foramen. The specimens were the
Journal of Applied Oral Science. Publicado em: 2008-02
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8. In vitro sealing ability of white and gray mineral trioxide aggregate (MTA) and white Portland cement used as apical plugs
This study evaluated the sealing ability of apical plugs made of white and gray MTA-Angelus® and white Portland cement placed via the root canal and having different thicknesses (2, 5 and 7 mm). Ninety extracted human single-rooted teeth were instrumented using a size 40 K-file to standardize the foraminal opening by the stepback technique. The teeth were a
Journal of Applied Oral Science. Publicado em: 2007-06
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9. Análise da capacidade seladora e da adaptação marginal de tampões apicais confeccionados com diferentes materiais, sob a influência de três técnicas de obturação de canais radiculares / Analysis of the sealing ability and marginal adaptation of apical plugs fabricated with different materials, under the influence of three root canal filling techniques
Foram analisadas a capacidade seladora e a adaptação marginal de tampões apicais confeccionados com diferentes materiais, sob a influência de três técnicas de obturação de canais radiculares. Foram utilizados cento e vinte dentes permanentes de humanos, unirradiculados e portadores de um canal, superiores ou inferiores, com raízes íntegras e ápice
Publicado em: 2007
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10. Cellular and Genetic Analysis of Wound Healing in Drosophila Larvae
To establish a genetic system to study postembryonic wound healing, we characterized epidermal wound healing in Drosophila larvae. Following puncture wounding, larvae begin to bleed but within an hour a plug forms in the wound gap. Over the next couple of hours the outer part of the plug melanizes to form a scab, and epidermal cells surrounding the plug orie
Public Library of Science.
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11. Ultrastructural observations on the terminal segment epithelium of the seminiferous tubule of West African dwarf goats.
In the testes of West African dwarf goats, modified Sertoli cells comprise the major component of the terminal segment epithelium. They resemble Sertoli cells proper but differ in the paucity of agranular endoplasmic reticulum and lipid droplets. Cell attachment devices present include rudimentary desmosomes and occasional multiple contacts of opposing plasm
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12. Mechano-electrical transduction currents in isolated vestibular hair cells of the chick.
Properties of a mechano-electrical transduction channel were studied in enzymatically dissociated chick vestibular hair cells by using a whole-cell recording variation of the patch voltage-clamp technique. The apical hair bundle was stimulated by a glass rod which moved along a one-dimensional axis when stimulated by either a triangular or a trapezoidal comm