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Dive into the research topics where B Martin Biedma is active.

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Featured researches published by B Martin Biedma.


Journal of Biomaterials Science-polymer Edition | 2011

Amoxicillin-Loaded Sponges Made of Collagen and Poly[(methyl vinyl ether)-co-(maleic anhydride)] for Root Canal Treatment: Preparation, Characterization and In Vitro Cell Compatibility.

A. Luzardo-Álvarez; J. Blanco-Méndez; P. Varela-Patiño; B Martin Biedma

The difficulty of eliminating Enterococcus faecalis and other bacteria infecting dental root canals makes it desirable to develop formulations capable of sustained release of antibiotics within the canal. With this function in view, in this work we compared the mechanical, drug release and biocompatibility properties of amoxicillin-loaded collagen (CL) and CL complexed with poly[(methyl vinyl ether)-co-(maleic anhydride)] (PVMMA), with or without glutaraldehyde (GTA) or the natural product genipin (GN) as cross-linker. Collagen was not denatured by complexation with PVMMA. Only CL–PVMMA–GN sponges did not disintegrate during 7 days exposure to cell culture medium (un-cross-linked CL disintegrated within 24 h and un-cross-linked CL–PVMMA within 4 days), and CL–PVMMA–GN sponges also exhibited the most appropriate combination of mechanical properties (hardness, modulus of deformability and plasticity). CL–PVMMA–GN sponges absorbed aqueous medium faster than other cross-linked formulations, but their maximum uptake was less; and drug release from CL–PVMMA–GN sponges tended to be faster than from any other, except un-cross-linked CL–PVMMA, maximum release taking about 4 days. No formulation significantly altered the viability of L929 fibroblast-like mouse connective tissue cells, but cells growing on sponges showed signs of non-adherence. It is concluded that genipin-cross-linked CL–PVMMA sponges merit further investigation as antibiotics vehicles and aids to tissue regeneration in the dental root canal.


Avances en Odontoestomatología | 2015

Candidiasis oral en el paciente mayor

E. Otero Rey; M. Peñamaría Mallón; M. Rodríguez Piñón; B Martin Biedma; A. Blanco Carrion

espanolLa candidiasis o candidosis oral es la enfermedad infecciosa ocasionada por el crecimiento de las colonias de Candida y la penetracion de las mismas en los tejidos orales cuando las barreras fisicas y las defensas del huesped se encuentran alteradas. Es una infeccion frecuente de la cavidad oral de los adultos de edad avanzada. Aunque la incidencia real se desconoce, se sabe que existe una prevalencia aumentada en ciertas ocasiones como ocurre en ancianos, en presencia de protesis mucosoportadas, xerostomia o en patologias asociadas frecuentemente en los mayores. Los tipos clinicos mas caracteristicos son la forma seudomembranosa y la eritematosa (palatina y lingual). Pueden tener evolucion aguda o cronica segun la persistencia de los factores predisponentes. Tambien son frecuentes procesos bucales comunmente asociados: estomatitis protetica, queilitis angular, glositis romboidal y lengua vellosa. La mayor parte de las candidiasis orales tienen un diagnostico clinico, pero ha de confirmarse demostrando la penetracion de la candida en la mucosa oral, siendo el frotis la tecnica de eleccion. Antes de comenzar el tratamiento, debemos estar seguros que se trata de una candidiasis oral, el tipo clinico y los factores predisponentes relacionados con la infeccion. Empezaremos siempre eliminando estos factores predisponentes, en el adulto mayor, la polifarmacologia, la xerostomia, enfermedades cronicas y el uso de protesis mucosoportadas son situaciones frecuentes que habra que controlar. Instauraremos medidas higienicas bucales y posteriormente si es necesario, utilizaremos farmacos antifungicos, comenzando siempre con formas topicas. EnglishOral Candidiasis or Candidosis is the infectious disease caused by the growth of colonies of Candida and penetration in the oral tissues when physical barriers and host defenses are altered. It is the most common fungal infection of oral involvement. It is a common infection of the oral cavity in elderly adults. Although the true incidence is unknown, it is known that there is an increased prevalence in certain situations in the elderly: tissue-borne prosthesis, xerostomia or disorders frequently associated. The most characteristic clinical types are pseudomembranous and erythematous (palatal and lingual) form. They may have acute or chronic evolution as the persistence of predisposing factors. They are also frequent mouth commonly associated processes: denture stomatitis, angular cheilitis, rhomboid glossitis and hairy tongue. Most oral candidiasis have a clinical diagnosis, but must be confirmed by demonstrating penetration of candida on the oral mucosa, being the preferred technique smears. Before starting treatment, we must be sure that it is an oral candidiasis, clinical type and predisposing factors associated with infection. Always start eliminating these predisposing factors in the elderly, the polypharmacy, xerostomia, chronic diseases and the use of tissue-borne prostheses are common situations which must be controlled. We will initiate oral hygiene measures and then if necessary, use antifungal drugs, always starting with topical forms.


Avances en Odontoestomatología | 2015

La endodoncia en los pacientes mayores

B Martin Biedma; P Castelo Baz; E. Otero Rey; M Ruiz Pinon; A. Blanco Carrion

La endodoncia en el paciente geriatrico es un procedimiento cada vez mas habitual en la clinica odontologica. Debemos, dadas las caracteristicas medicas y dentales de muchos de estos pacientes mayores, planificar correctamente los procesos instrumentales y prever las posibles dificultades que puedan surgir motivadas por conductos estrechos, camaras pulpares calcificadas etc. En la instrumentacion de estos dientes, someteremos a los instrumentos a alto estres por torsion, motivado por la amplia superficie de contacto entre el instrumento y las paredes, por lo que sera totalmente necesario la realizacion de una preinstrumentacion rotatoria y consideramos que es una buena opcion el uso del movimiento reciproco. La preparacion de los conductos debe dejar un remanente dentinario suficiente, mantenimiento del foramen apical y conicidad progresiva que facilita la administracion de irrigantes a lo largo de la longitud de los conductos y las fuerzas de condensacion para la obturacion. Como irrigantes utilizamos, de forma general, el hipoclorito de sodio al 5% a lo largo de toda la fase instrumental; y una combinacion del hipoclorito con un quelante durante la irrigacion preobturacion que activaremos con algun dispositivo ultrasonico o de aspiracion apical negativa. La obturacion la realizaremos con sistemas termoplasticos que nos aportan el mejor sellado tridimensional del sistema de conductos.


Journal of Oral Rehabilitation | 2002

Analysis of the area and length of masticatory cycles in male and female subjects

N. Barciela Castro; J.M. Fernández Varela; B Martin Biedma; B. Rilo Pousa; J.M. Suárez Quintanilla; J. Gonzalez Bahillo; P Varela Patino


Journal of Clinical and Experimental Dentistry | 2017

Alternating versus continuous rotation: centering ratio and canal transportation with the ProTaper Next

J Gonzalez Chapela; P Castelo Baz; P Varela Patino; B Martin Biedma; M Ruiz Pinon


Journal of Clinical and Experimental Dentistry | 2017

Revascularization of inmature permanent teeth

S. Aboy Pazos; P Castelo Baz; B Martin Biedma; M Ruiz Pinon; P Varela Patino


Journal of Clinical and Experimental Dentistry | 2017

Posterior tooth restoration with endocrown: a case report

L. González Acosta; P Castelo Baz; J Bahillo Varela; B Martin Biedma; P Varela Patino


Journal of Clinical and Experimental Dentistry | 2017

Analysis of dentinal microcrack formation after rotary instrumentation: invasive method versus Micro-CT

R Miguens Vila; P Varela Patino; P Castelo Baz; M Ruiz Pinon; B Martin Biedma


Journal of Clinical and Experimental Dentistry | 2017

Centering of the carrier in curved canals: Thermafil vs GuttaCore

Ab Dablanca Blanco; P Castelo Baz; B Martin Biedma; B Rivas Mundina; P Varela Patino


Journal of Clinical and Experimental Dentistry | 2014

Non-surgical retreatment, sealed with MTA, in incisor with apical radiolucent image

A Dominguez Perez; J Riadigos Presas; B Rivas Mundina; B Martin Biedma; P Varela Patino

Collaboration


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P Varela Patino

University of Santiago de Compostela

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P Castelo Baz

University of Santiago de Compostela

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M Ruiz Pinon

University of Santiago de Compostela

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A. Blanco Carrion

University of Santiago de Compostela

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E. Otero Rey

University of Santiago de Compostela

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J. Gonzalez Bahillo

University of Santiago de Compostela

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A. Luzardo-Álvarez

University of Santiago de Compostela

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B. Rilo Pousa

University of Santiago de Compostela

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J. Blanco-Méndez

University of Santiago de Compostela

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J.M. Fernández Varela

University of Santiago de Compostela

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