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1.
Med. oral patol. oral cir. bucal (Internet) ; 26(4): e422-e429, Juli. 2021. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-224585

RESUMO

Background: Periapical surgery focuses on the treatment of teeth with persistent periapical lesions when ortho-grade root canal treatment fails. Although MTA® is the gold standard material for retrograde filling, Biodentine®- a tricalcium silicate-based cement - has been proposed in order to resolve several of its limitations. A systematicreview has been carried out to compare the physicochemical properties of Biodentine® versus MTA® as root-endfilling material in periapical surgery.Material and Methods: An electronic search was conducted by two independent examiners during March 2020 inthe Cochrane, PubMed-MEDLINE and Scopus databases. In addition, a manual search was made in specializedjournals. Comparative human or in vitro studies that evaluated bond strength, the presence of marginal gap andsealing ability were included. No restriction on publication date was applied. Animal studies, clinical cases, casesseries and expert opinions were excluded.Results: After analyzing 147 initially selected studies, 13 publications were included. Regarding bond strength,the studies seemed to evidence better performance of Biodentine® in both acidic and blood contaminatedenvironments. In relation to the presence of marginal gap and sealing ability, the studies yielded contradictory results. According to some authors, the sealing ability of Biodentine® is greater than that of MTA® during the first 24hours, though both materials prove equal after one week. Other authors recorded no significant differences.Conclusions: Considering the limitations and heterogeneity of the studies included, there is not sufficient evidence toconfirm the clinical superiority of Biodentine® as a root-end filling material in periapical surgery.(AU)


Assuntos
Humanos , Masculino , Feminino , Compostos de Alumínio , Compostos de Cálcio , Cimentos Dentários , Combinação de Medicamentos , Tratamento do Canal Radicular , Medicina Bucal , Saúde Bucal , Patologia Bucal , Cirurgia Bucal
2.
Endodoncia (Madr.) ; 38(2): 6-12, oct. 2020. ilus
Artigo em Espanhol | IBECS | ID: ibc-198454

RESUMO

Las perforaciones radiculares son complicaciones no deseadas que pueden ocurrir durante el tratamiento de conductos. Los principales factores que afectan el pronóstico de un diente que presenta una perforación son la localización y el tamaño de esta, el tiempo transcurrido hasta su reparación, el grado de contaminación previa, y la presencia de una radiolucidez adyacente. La aparición de materiales biocompatibles como el agregado de trióxido mineral (MTA) incrementó de forma sustancial el pronóstico de estos dientes alcanzando tasas de éxito de alrededor del 90%. El objetivo de este artículo es describir el manejo ortógrado de dos casos con perforaciones radiculares laterales en los que se utilizaron materiales y técnicas distintas para su sellado. En ambos casos, previamente al sellado ortógrado de las perforaciones, se realizó una desinfección abundante con hipoclorito de sodio (NaOCl) al 2,5%. En el primer caso, se realizó la obturación del tercio apical del conducto usando una técnica de condensación vertical con gutapercha caliente, y posteriormente se obturó el resto del conducto, incluida la perforación, mediante MTA blanco (Angelus, Londrina, PR, Brasil). En el segundo caso, que además presentaba la dificultad añadida de un instrumento fracturado, se utilizó Biodentine (Septodont, Saint-Maur-des-Fosses, Francia) en toda la longitud del conducto radicular donde se encontraba la perforación. La ausencia de signos y síntomas clínicos y la curación radiográfica en progreso revelan unos resultados satisfactorios en las revaluaciones postoperatorias a los 6 y 18 meses


Root perforations are undesired complications that can occur during root canal treatments. The prognosis of teeth with root perforations could be affected by several factors described in the literature, such as location, size, immediacy in the repair, previous microbial contamination and the presence of a radiolucency adjacent to perforation. However, the introduction of mineral trioxide aggregate (MTA) resulted in an improved prognosis and higher success rates. The purpose of this case report was to describe two nonsurgical endodontic retreatments with lateral root perforations using two different materials and techniques for filling. A disinfection with 2,5% sodium hypochlorite was carried out in both root canals with root perforation. In the first case, the apical third of the canal was filled with vertically compacted warm gutta-percha, while the rest of the canal was sealed with white MTA (Angelus, Londrina, PR, Brazil) for proper sealing of the perforation. In the second case, in addition to presenting the added difficulty of a separated instrument, the complete root canal filling with perforation was performed using Biodentine (Septodont, Saint-Maur-des-Fosses, France). The absence of clinical signs and symptoms and the radiographic healing in progress revealed satisfactory results after 6 and 18 months of follow-up


Assuntos
Humanos , Adulto , Idoso , Cavidade Pulpar/lesões , Obturação Retrógrada/métodos , Materiais Restauradores do Canal Radicular/uso terapêutico , Cavidade Pulpar/diagnóstico por imagem , Tratamento do Canal Radicular/efeitos adversos , Radiografia Dentária , Tomografia Computadorizada de Feixe Cônico , Resultado do Tratamento , Combinação de Medicamentos , Óxidos/uso terapêutico , Compostos de Alumínio/uso terapêutico , Compostos de Cálcio/uso terapêutico , Silicatos/uso terapêutico
3.
Endodoncia (Madr.) ; 38(1): 28-43, jun. 2020. ilus, tab, graf
Artigo em Espanhol | IBECS | ID: ibc-199207

RESUMO

OBJETIVO: Los materiales que se emplean para procedimientos dentales en los que el material contacta directamente con el tejido pulpar y tejidos periodontales han de cumplir una serie de propiedades, entre ellas la biocompatibilidad. A su vez, han de ser materiales que eviten el paso de fluidos y microorganismos con el fin de preservar las condiciones óptimas de los tejidos. El objetivo de esta revisión sistemática fue evaluar la porosidad de los diferentes cementos de agregado trióxido mineral (MTA). MÉTODO: Dos investigadores realizaron búsquedas avanzadas en: PubMed Central, PubMed, Web of Science, Scopus, Cochrane Li-brary, Science Direc y Science Database (Proquest) siguiendo los criterios PRISMA. Los criterios de inclusión contemplaban los es-tudios in vitro, publicados en inglés desde enero de 1993 hasta abril de 2019, que analizaran y midieran la porosidad del MTA. Se excluyeron los estudios in vivo, piloto, editoriales, cartas, revisiones sistemáticas, reseñas literarias, resúmenes de conferencias y trabajos de fin de grado. RESULTADOS: Un total de 853 artículos resultó de la búsqueda inicial, de los que solo 19 pasaron los criterios de inclusión, exclusión y el análisis del riesgo de sesgo. En ellos, se analizan distintas técnicas de condensación del MTA, radiopacificadores, sustratos, etc., en busca de materiales que presenten menor porosidad. CONCLUSIONES: La elevada heterogeneidad de los estudios sobre porosidad y el hecho de que éstos no estén estandarizados, pue-de condicionar la validez externa o generalización de los resultados entre los distintos investigadores para un mismo material y procedimiento. En los estudios que realizan una comparación entre varios materiales, concluyen que tanto MTA ProRoot® y Bio-dentineTM obtuvieron mejores resultados en cuanto a porosidad. Número de solicitud (PROSPERO): 124340


OBJECTIVE: Materials used for dental procedures in which the material directly contacts the pulp and periodontal tissues must have a series of characteristics, such as biocompatibility. Equally, they must be materials that prevent the passage of fluids and microorganisms aiming at keeping the optimal conditions of the tissues intact. The objective of this systematic review was to evaluate the porosity of the different cements of mineral trioxide aggregate (MTA). METHOD: Two researchers conducted advanced searches in: PubMed Central, PubMed, Web of Science, Scopus, Cochrane Library, ScienceDirect and ScienceDatabase (Proquest) following the PRISMA criteria. Inclusion criteria took into account in vitro studies, published in English from January 1993 to April 2019, to analyse and measure the porosity of the MTA. In vivo and pilot studies were excluded, as well as editorials, letters, systematic reviews, literary reviews, conference abstracts and dissertations. RESULTS: A total of 853 articles resulted from the initial search, of which only 19 met the criteria for inclusion, exclusion and analysis of the risk of bias. In them, different condensation techniques of the MTA, radiopacifiers, substrates, etc., are analysed in quest of materials with less porosity. CONCLUSIONS: The high heterogeneity of the studies on porosity and the fact that they are not standardised, can condition the external validity or generalisation of the results among the different researchers for the same material and procedure. In the studies that make a comparison between several materials, they conclude that both MTA ProRoot® and BiodentineTM obtained better outcomes in terms of porosity as compared with other marketed brands. Application number (PROSPERO): 124340


Assuntos
Humanos , Cimentos Dentários/química , Materiais Restauradores do Canal Radicular/química , Compostos de Cálcio/química , Compostos de Alumínio/química , Materiais Restauradores do Canal Radicular/uso terapêutico , Cimentos Dentários/uso terapêutico , Compostos de Cálcio/uso terapêutico , Compostos de Alumínio/uso terapêutico , Materiais Biocompatíveis/química , Materiais Biocompatíveis/uso terapêutico , Porosidade
5.
Med. oral patol. oral cir. bucal (Internet) ; 21(2): e236-e240, mar. 2016.
Artigo em Inglês | IBECS | ID: ibc-151070

RESUMO

BACKGROUND: It is estimated that over 190 million bisphosphonates have been prescribed worldwide. But this drug can produce adverse effects, of which osteonecrosis of the jaw and severe hypocalcemia are the most serious. It is evident that bisphosphonate administration affects multiple and diverse biochemical mediators related to bone metabolism. MATERIAL AND METHODS: This review of literature investigates four basic parameters in patients treated with bisphosphonates - parathyroid hormone (PTH), bisphosphonates, vitamin D, calcium, and jaw osteonecrosis - which are fundamental for assessing bone metabolism and so the efficacy and correct use of the drug. The imbalances generated by vitamin D and calcium deficiencies, together with their multiple systemic repercussions, have been widely researched but the outcomes of these imbalances in relation to bisphosphonate administration are not well known, and some research has indicated that they may be associated with osteonecrosis of the jaw (ONJ). RESULTS: The present review set out to explain the functioning of bone metabolism, the importance of different chemical mediators, the imbalances produced by incorrect use of this drug, in order to forewarn against the possible relation of these parameters with ONJ, whose physiopathology remains unknown. CONCLUSIONS: Medical and dental clinics should keep detailed anamneses of the use of vitamin D and calcium supplements, as it is of vital importance to maintain their correct levels in blood, given that these are related to ONJ as well as other adverse effects; this procedure is also necessary in order to ensure the correct use of the drug


No disponible


Assuntos
Humanos , Osteonecrose da Arcada Osseodentária Associada a Difosfonatos/fisiopatologia , Vitamina D/administração & dosagem , Hormônio Paratireóideo/administração & dosagem , Compostos de Cálcio/administração & dosagem , Difosfonatos/efeitos adversos , Segurança do Paciente
6.
Int. microbiol ; 18(1): 61-69, mar. 2015. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-141145

RESUMO

The protective effects of encapsulation on the survival of Lactobacillus reuteri and the retention of the bacterium’s probiotic properties under simulated gastrointestinal conditions were investigated. Viable counts and the remaining probiotic properties of calcium (Ca)-alginate encapsulated (A group), chitosan-Ca-alginate encapsulated (CA group), and unencapsulated, free L. reuteri (F group) were determined. Encapsulation improved the survival of L. reuteri subjected to simulated gastrointestinal conditions, with the greatest protective effect achieved in the CA group. The degree of cell membrane injury increased with increasing bile salt concentrations at constant pH, but the extent of injury was less in the encapsulated than in the free cells. Adherence rates were, in descending order: CA (0.524%) > A (0.360%) > F (0.275%). Lactobacillus reuteri cells retained their antagonistic activity toward Listeria monocytogenes even after incubation of the lactobacilli under simulated gastrointestinal conditions. Displacement of the pathogen by cells released from either of the encapsulation matrices was higher than that by free cells. The safety of L. reuteri was demonstrated in an in vitro invasion assay (AU)


No disponible


Assuntos
Limosilactobacillus reuteri/crescimento & desenvolvimento , Listeria monocytogenes/patogenicidade , Probióticos/farmacocinética , Técnicas In Vitro , Quitosana , Compostos de Cálcio
7.
Nefrología (Madr.) ; 34(5): 617-627, sept.-oct. 2014. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-130891

RESUMO

Background: This observational study was conducted to investigate the use and effectiveness of calcium acetate/magnesium carbonate (CaMg) in the treatment of hyperphosphataemia in dialysis patients in real-world clinical practice. Methods: 120 adult CKD patients on dialysis who received CaMg alone or in combination with other phosphate binders were followed-up for 3-12 months. Serum phosphorus, calcium, magnesium, parathyroid hormone and albumin concentration was measured at baseline and after 3, 6 and 12 months respectively. In addition, CaMg dosage, use of concurrent phosphate binders, vitamin D and cinacalcet was documented. Patients were evaluated in 2 subgroups - CaMg alone (n=79) vs. CaMg + concurrent phosphate binder (n=41). Results: In both subgroups serum phosphorus levels decreased significantly from baseline at 3, 6 and 12 months of CaMg treatment. The percentage achievement of recommended serum phosphorus targets improved after CaMg initiation. At month 6, a total of 78% were within the Kidney Disease Outcomes Quality Initiative (K/DOQI) target range. Total corrected serum calcium increased during CaMg treatment, but mildly exceeded the upper limit of normal in three patients only. Asymptomatic significant increases in magnesium (p<0.001) were observed in the monotherapy group at 3, 6 and 12 months. A total of 80 patients (67%) experienced episodes of mild hypermagnesaemia (>2.6mg/mL, 1.05mmol/L). Conclusions: This analysis of current clinical practice shows that - consistent with findings from a randomised controlled trial - CaMg treatment leads to marked improvement in serum phosphorus levels, helping patients in trying to achieve K/DOQI and KDIGO (Kidney Disease Improving Global Outcome) targets (AU)


Antecedentes: Este estudio observacional se llevó a cabo para investigar el uso y la efectividad, en la práctica clínica real, del acetato cálcico/carbonato magnésico (CaMg) en el tratamiento de la hiperfosfatemia en pacientes en diálisis. Métodos: Se realizó un seguimiento durante 3-12 meses en 120 pacientes adultos con enfermedad crónica renal en tratamiento con diálisis que recibían monotratamiento con CaMg o en combinación con otros quelantes del fósforo. Se midieron en suero los valores de fósforo, calcio, magnesio, hormona paratiroidea y concentración de albúmina a nivel basal y tras 3, 6 y 12 meses, respectivamente. Además, se documentó la dosis de CaMg, el uso de quelantes de fósforo concomitantes, la vitamina D y el cinacalcet. Los pacientes se dividieron en 2 subgrupos: aquellos a los que solo se les administraba CaMg (n=79) frente a los que recibían CaMg y un quelante de fósforo concomitante (n=41). Resultados: En ambos subgrupos, los niveles de fósforo sérico disminuyeron de forma significativa, con respecto a los basales, a los 3, 6 y 12 meses de tratamiento con CaMg. El porcentaje de logro de los niveles recomendados de fósforo sérico mejoró tras iniciar el tratamiento con CaMg. El mes 6, un total del 78% se encontraba dentro de las recomendaciones objetivo de Calidad de los Resultados de la Insuficiencia Renal (K/DOQI). El calcio sérico total corregido aumentó durante el tratamiento con CaMg, pero superaba levemente los límites superiores normales solo en tres pacientes. Asimismo, se observaron incrementos significativos del magnesio asintomáticos (P<0,001) en el grupo de monoterapia a los 3, 6 y 12 meses. Un total de 80 pacientes (67%) sufrieron episodios de hipermagnesemia leve (>2,6 mg/mL, 1,05 mmol/L). Conclusiones: El presente análisis de la práctica clínica habitual, en consonancia con los datos obtenidos de un ensayo aleatorizado controlado, demuestra que el tratamiento con CaMg mejora de forma considerable los niveles de fósforo sérico y ayuda a los pacientes a conseguir los objetivos K/DOQI y KDIGO (mejora de los resultados globales en la enfermedad renal) (AU)


Assuntos
Humanos , Hiperfosfatemia/tratamento farmacológico , Compostos de Cálcio/uso terapêutico , Carbonato de Cálcio e Magnésio , Diálise Renal/efeitos adversos , Insuficiência Renal Crônica/complicações , Quelantes/uso terapêutico
9.
Med. clín (Ed. impr.) ; 130(18): 688-692, mayo 2008. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-178068

RESUMO

Fundamento y objetivo: El AM3 es un inmunomodulador que ha demostrado mejorar de forma significativa la calidad de vida en pacientes con enfermedad pulmonar obstructiva crónica (EPOC). En este estudio se analiza su efecto en la calidad de vida en subgrupos de riesgo y se identifican los factores asociados con el cambio en la calidad de vida en pacientes con EPOC. Pacientes y método: Se trata de un ensayo clínico aleatorizado, doble ciego, controlado con placebo y de grupos paralelos de 6 meses de duración. Incluyó a 253 pacientes con una edad media (desviación estándar) de 67,7 (8,1) años y una cifra media de volumen espiratorio forzado en el primer segundo (FEV1) del 49,7% (10,2%). Resultados: Tan sólo 121 pacientes (47,8%) presentaron al menos una agudización. La mejoría en el St. George's Respiratory Questionnaire (SGRQ) en los pacientes que experimentaron agudizaciones y que recibieron AM3 fue significativamente superior a la de los que recibieron placebo (­8,10 frente a ­2,5 unidades; p < 0,034). Los pacientes tratados con corticoides inhalados también mejoraron más con AM3 que con placebo (­9,17 frente a ­4,44; p < 0,035). En los 108 pacientes con FEV1 menor del 50% las diferencias no fueron estadísticamente significativas (­9,57 frente a ­6,57; p = 0,23). Los factores asociados al cambio en el SGRQ fueron el SGRQ inicial (p < 0,001), la presencia de agudizaciones (p < 0,008), un valor del FEV1 inferior al 50% (p < 0,032) y el tratamiento con AM3 (p < 0,004). Conclusiones: En pacientes que presentaron agudizaciones durante el seguimiento, el tratamiento con AM3 previno el deterioro de la calidad de vida. Junto al tratamiento con AM3, la puntuación basal del SGRQ, la presencia de agudizaciones y una peor función pulmonar fueron factores asociados de forma independiente al cambio en el SGRQ


Background and objective: AM3 is an immunomodulator that significantly improves the quality of life of patients with chronic obstructive pulmonary disease (COPD). This study examined the effect of AM3 on the quality of life of patients in different risk groups and identified the factors associated with change in this variable. Patients and method: This was a randomized, double-blind, placebo-controlled trial involving parallel groups of patients. The duration of the trial was 6 months. The study involved 253 patients with a mean (standard deviation) age of 67.7 (8.1) years and a mean forced expiratory volume in one second (FEV1) of 49.7% (10.2%). Results: Only 121 patients (47.8%) suffered at least one exacerbation during the 6 months period. At the end of the study period, the improvement in St. George's Respiratory Questionnaire (SGRQ) score in those patients who suffered an exacerbation but who received AM3 was significantly greater than that experienced by similar placebo-treated patients (­8.10 compared to ­2.5 units; p = 0.034). Patients treated with inhaled corticoids also improved more with AM3 than with placebo (­9.17 compared to ­4.44; p = 0.035). In the 108 patients with an FEV1 of < 50%, the improvements were not significantly different (­9.57 vs. ­6.57; p = 0.23). The factors influencing the change in SGRQ score were baseline SGRQ (p < 0.001), exacerbations (p < 0.008), an FEV1 of < 50% (p < 0.032) and treatment with AM3 (p < 0.004). Conclusions: Among the patients who experienced exacerbations, treatment with AM3 helped prevent the deterioration of their quality of life. Along with AM3 treatment, the factors that independently influenced the change in SGRQ score were suffering from an exacerbation and poorer pulmonary function


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Glicopeptídeos/uso terapêutico , Fatores Imunológicos/uso terapêutico , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Doença Pulmonar Obstrutiva Crônica/psicologia , Qualidade de Vida/psicologia , Fosfatos de Cálcio/uso terapêutico , Anti-Inflamatórios/uso terapêutico , Compostos de Cálcio , Método Duplo-Cego , Quimioterapia Combinada , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Fatores de Risco , Sulfetos , Inquéritos e Questionários
11.
Endodoncia (Madr.) ; 24(4): 219-222, oct.-dic. 2006. ilus, tab
Artigo em Es | IBECS | ID: ibc-053918

RESUMO

Objetivo: El propósito de este estudio fue comparar la adaptación marginal de tres materiales a base de mineral trióxido agregado, Pro Root, MTA Ángelus y CPM, cuando se usan como materiales de obturación en cavidades retrógadas. Material y método: Se emplearon veintisiete raíces de premolares inferiores humanos, de un conducto, recién extraídos. Los conductos fueron limpiados y conformados con técnica manual corono-apical y obturados con conos de gutapercha y cemento de Grossman usando técnica de condensación lateral. Las raíces fueron apicectomizadas y se conformaron cavidades con ultrasonido. Se dividieron al azar en tres grupos y las retrocavidades se obturaron con los materiales en estudio. Luego de su endurecimiento los especimenes fueron observados al microscopio electrónico de barrido para evaluar la adaptación de los materiales a las paredes de la cavidad. Resultados: Los resultados de la investigación mostraron que no hay diferencias significativas en la adaptación de los tres materiales (p=0,824>0,01). No obstante el más estable en su comportamiento fue Pro Root (<20%), luego CPM (40%) y finalmente Ángelus. Conclusiones: En conclusión, si bien los tres materiales se adaptan bien a las paredes de la cavidad no cuentan con el mismo grado de confiabilidad por parte nuestra


Objective: The purpose of this study was to compare the sealing ability of three Mineral Trioxide Agrégate Pro Root, MTA Ángelus and CPM when use as retrofilling materials. Materials and method: Twenty seven single maxillary premolars were intrumented following crown down technique and obturated with laterally condensed gutta percha and sealer. Each root was then apically resected and a class I apical cavity was made with ultrasonic tips in all the specimens. Teeth were randomly divided in three groups and each one was filled with the studied materials. After materials setting the specimens were observed using MEB. Results: Stadistical analysis showed that the three materials reveled no significant difference. (p=0,824>0,01). Although the most reliable was Pro Root (20%) then CPM (40%) and finally Angelus (70%). Conclusions: Pro Root seems to be more beliable than the other two materials


Assuntos
Humanos , Materiais Restauradores do Canal Radicular/uso terapêutico , Obturação Retrógrada/métodos , Compostos de Alumínio/administração & dosagem , Compostos de Cálcio/administração & dosagem , Combinação de Medicamentos , Silicatos/administração & dosagem , Óxidos/administração & dosagem
12.
Endodoncia (Madr.) ; 24(4): 231-260, oct.-dic. 2006. ilus, tab
Artigo em Es | IBECS | ID: ibc-053920

RESUMO

La cirugía endodoncia ha evolucionado hacia la microcirugía endodoncia. Empleando equipamiento, instrumentos y materiales actualizados que adaptan los conceptos biológicos a la práctica clínica, creemos que los enfoques microquirúrgicos producen resultados predecibles en la curación de las lesiones de origen endodóncico. En esta revisión, intentamos proporcionar los conceptos, técnicas, instrumentos y materiales más actuales, con la finalidad de demostrar qué lejos hemos llegado. Nuestro objetivo principal es enseñar de forma asectiva a la futura generación de licenciados y también entrenar a nuestros colegas para que incorporen estas técnicas y conceptos en la práctica diaria


Endodontic surgery has now evolved endodontic microsurgery. By using state-of-the-art equipment, instruments and materials that match biological concepts with clinical practice, we believe that microsurgical approaches produce predictable outcomes in the healing of lesions of endodontic origin. In this review we attempted to provide the most current concepts, techniques, instruments and materials with the aim of demonstrating how far we have come. Our ultimate goal is to assertively teach the future generation of graduate students and also train our colleagues to incorporate these techniques and concepts into everyday practice


Assuntos
Humanos , Doenças Periapicais/cirurgia , Obturação Retrógrada/métodos , Apicectomia , Materiais Restauradores do Canal Radicular , Preparo de Canal Radicular , Cavidade Pulpar/anatomia & histologia , Combinação de Medicamentos , Compostos de Cálcio , Terapia a Laser , Microcirurgia , Silicatos , Ultrassom , Óxidos
13.
Dentum (Barc.) ; 6(3): 96-102, jul.-sept. 2006. ilus
Artigo em Espanhol | IBECS | ID: ibc-84143

RESUMO

Desde su aparición en 1993, numerosos artículos han sido publicados en la literatura describiendo las distintas utilidades del MTA enodontología. El objetivo de este artículo es realizar una revisión de las principales publicaciones aparecidas respecto a este material y de esta forma, poder clarificar y describir sus aplicaciones en la práctica clínica odontopediátrica (AU)


From its appearance in 1993, numerous articles have been published in literature describing the different utilities from MTA in dentistry. The objective of this article is to make a revision of main publications appeared with respect to this material and of this form, to be able to clarify and to describe to its applications in pediatric dentistry clinical practice (AU)


Assuntos
Humanos , Criança , Compostos de Alumínio/uso terapêutico , Compostos de Cálcio/uso terapêutico , Amálgama Dentário , Cárie Dentária/terapia , Óxidos/uso terapêutico , Silicatos/uso terapêutico , Cimento de Óxido de Zinco e Eugenol , Restauração Dentária Permanente , Restauração Dentária Temporária , Polpa Dentária
14.
Nefrología (Madr.) ; 23(supl.2): 112-116, 2003. graf
Artigo em Espanhol | IBECS | ID: ibc-148537

RESUMO

Las calcificaciones de los tejidos se han clasificado como metastásicas debido a la elevación de Ca, P, CaxP y PTH o distróficos por anormalidad en los tejidos. La marcada rapidez con que ocurren en los pacientes con IRC sugiere que ambos mecanismos están presentes y contribuyen entre sí. Nuestro objetivo fue establecer mediante Rx la incidencia de calcificaciones vasculares y de partes blandas y relacionarlos con perfiles bioquímicos. Material y métodos: Se incluyeron 47 pacientes (24 mujeres y 23 varones), 10 diabéticos, con edad de 49 años, con un tiempo en HD de 51 ± 31 meses. Se les realizó Rx de manos, pies y hombros bilateral, abdomen, pelvis y tórax. Se clasificó a las calcificaciones vasculares (CV) en proximales (aorta, ilíacas, femoral) y distales (digitales) y de tejidos blandos a las musculares, periarticulares o de órganos. Se determinó Ca, P, CaxP durante 6 meses previos, PTH, fosfatasa alcalina e ingesta de carbonato de Ca, acetato de Ca y vitamina D3. Se estudió la relación entre diabéticos y no diabéticos y luego estos últimos fueron excluidos del análisis. Se aplicó test de Fisher, test de Kruskal-Wallis y test de Mann-Whitney. Resultados: Las CV fueron más frecuentes en diabéticos, resultando significativa la asociación de la calcificación proximal 60% (p = 0,05) y casi significativa en la distal 70% (p = 0,07) en relación a los no diabéticos. El CaxP en los diabéticos con CV fue menor que en los no diabéticos con CV (p < 0,05). En la población no diabética las CV proximal y distal fueron del 25% y 20% respectivamente y la de tejidos del 24%: la edad se correlacionó con las CV proximal (p = 0,006) y distal (p = 0,0006). El CaxP fue mayor en pacientes con CV y aún más en calcificaciones de tejidos. La ingesta de acetato de Ca y el Ca total fue mayor en pacientes con calcificación de tejidos (p < 0,0045). Conclusiones: Las CV fueron más frecuentes en diabéticos y con CaxP menor. En no diabéticos, las CV y de tejidos se relacionaron con CaxP y las de tejidos con la ingesta de Ca. Es necesario un cambio en el manejo de la osteodistrofia renal para prevenir las calcificaciones y de esta manera disminuir la morbilidad de los pacientes en hemodiálisis (AU)


The present paper aims to assess radiographic vascular and soft parts calcifications occurrence and its correlation with biochemical profiles. The study was performed in 47 patients (ten diabetic patients), 49 years old, who had been on dialysis for a period of 51 months. Vascular calcifications (VCs) were classified as proximal, distal and soft tissues. In addition, Ca, P, CaxP values in the six months prior to the recruitment period, PTH, FAL and calcium carbonate, calcium acetate, and vitamin D3 intake were determined. A higher frequency of VCs was observed in diabetics, yielding a significant association with proximal 60% (p = 0.05) and almost significant with distal calcifications 70% (p = 0.07). Likewise, a lower CaxP was noted for diabetic VCs in comparison to that seen in non-diabetic VCs (p < 0.05). Proximal and distal VCs in the non-diabetics population were 25% and 20%, respectively; and tissue calcifications were 24%. Age was correlated with proximal and distal VCs (p < 0.01). A higher CaxP was observed in patients with VCs and it yielded an even higher value for tissue calcifications. Lastly, calcium acetate and overall calcium intake was higher in patients with tissue calcifications (p = 0.05). VCs were more frequent in diabetics and they also showed a lower CaxP. VCs in non-diabetics were correlated with CaxP values, whereas tissue calcifications were associated with calcium intake. Therefore, the management of renal osteodystrophy should be changed in order to prevent calcifications as well as to decrease morbidity in hemodialysis patients (AU)


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Calcinose/etiologia , Falência Renal Crônica/sangue , Falência Renal Crônica/complicações , Falência Renal Crônica/terapia , Diálise Renal/efeitos adversos , Distúrbio Mineral e Ósseo na Doença Renal Crônica/etiologia , Doenças Vasculares/etiologia , Cálcio/sangue , Cálcio da Dieta/efeitos adversos , Acetatos/administração & dosagem , Acetatos/análise , Argentina/epidemiologia , Calcinose/sangue , Calcinose , Distúrbio Mineral e Ósseo na Doença Renal Crônica/prevenção & controle , Doenças Vasculares/sangue , Doenças Vasculares , Nefropatias Diabéticas/complicações , Nefropatias Diabéticas/terapia , Fósforo/sangue , Compostos de Cálcio , Soluções para Hemodiálise/efeitos adversos , Soluções para Hemodiálise/química , Especificidade de Órgãos
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