Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 14 de 14
Filtrar
Mais filtros










Filtros aplicados

Base de dados
Intervalo de ano de publicação
1.
Av. odontoestomatol ; 34(5): 237-243, sept.-oct. 2018. graf
Artigo em Espanhol | IBECS | ID: ibc-182269

RESUMO

Objetivos: Evaluar la correlación entre: (I) los niveles de fuerza aplicados a dientes anteriores en las etapas iniciales del tratamiento ortodóntico; (II) la percepción de dolor y (III) la sensibilidad pulpar. Universo y Muestra: Clínica de Especialización en Ortodoncia y Ortopedia MáxiloFacial de la Universidad San Sebastián en Santiago de Chile durante los años 2012 al 2014. Se obtuvo una muestra no probabilística por conveniencia de 136 dientes en 37 pacientes con brackets y Arcos de (TM)Nitinol termoactivados (35ºC) de 0.014 pulgadas. Material y Método: Estudio observacional prospectivo. Los dientes fueron evaluados con un dinamómetro siendo las fuerzas clasificadas en cuatro categorías: leves, óptimas, altas y extremas. El dolor fue medido con la Escala Visual Análoga al primer, segundo y séptimo día, después del comienzo de la aplicación de la fuerza y al séptimo día también se sometieron los dientes a test térmicos. Resultados: Después de unas horas del comienzo de la aplicación de la fuerza, el dolor comenzó a disminuir. Con el aumento de magnitud de las fuerzas, el dolor no varió en intensidad. El 39.1% de los dientes que recibieron fuerzas "óptimas" y el 22.4% de los que recibieron fuerzas "extremas", mostraron una respuesta aumentada al frío. El 1% de los dientes sometidos a fuerzas "extremas" presentó una respuesta aumentada al calor. Conclusiones: En los primeros siete días, no se observó daño pulpar irreversible independiente de la magnitud de la fuerza aplicada


Objectives: To evaluate the correlation between: (I) force levels applied to anterior teeth in the initial stages of orthodontic treatment; (II) pain perception, and (III) pulp sensitivity. Setting and Sample Population: Orthodontics and Maxillofacial Orthopedics Clinic at San Sebastián University in Santiago, Chile from 2012 to 2014. A non-probabilistic convenience sample was obtained of 136 teeth in 37 patients with braces and 0.014-inch heat-activated (35ºC) Nitinol(TM) arch wires. Material and Method: Prospective observational study. Teeth were evaluated with a dynamometer. Forces were classified into four categories: mild, optimal, high, and extreme. Pain was measured with the Visual Analog Scale (VAS) on the first, second, and seventh day after the force application, and thermal tests were applied on the seventh day. Results: A few hours after the beginning of the force application, the pain began to diminish. The pain did not vary in intensity with increasing force magnitude. 39.1% of the teeth which received "optimal" forces and 22.4% of those which received "extreme" forces exhibited an increased response to cold. 1% of the teeth subjected to "extreme" forces exhibited an increased response to heat. Conclusions: In the first seven days, no irreversible pulpal damage was observed regardless of the magnitude of the applied force


Assuntos
Humanos , Sensibilidade da Dentina , Ortodontia/métodos , Percepção da Dor , Cavidade Pulpar/fisiologia , Chile , Estudos Prospectivos , Dinamômetro de Força Muscular , Radiografia Panorâmica , Medição da Dor , Intervalos de Confiança
2.
Av. odontoestomatol ; 33(3): 103-112, mayo-jun. 2017. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-165138

RESUMO

Los tratamientos blanqueadores actuales pretenden mejorar la calidad estética de la sonrisa de los pacientes, aplicando técnicas y materiales mínimamente invasivos. Existen en el mercado numerosos productos al alcance tanto del público como de los profesionales odontológicos cuya acción se basa en un contacto directo a diente, en una franja de tiempos y en un sistema de aplicación determinado, de materiales como peróxidos de hidrógeno o carbamidas, a diferentes concentraciones. En general, aquellos de concentraciones altas se utilizan ante tratamientos en la clínica dental, siendo menor la exposición del diente en tiempo, el material más ampliamente utilizado en este tipo de blanqueamiento tiende a ser la carbamida. Mientras que para evitar hipersensibilidad dental posterior, daños en la mucosa oral y perioral e incluso el potencial carcinogénico que tienen los blanqueamientos, cada vez se ha pasado a utilizar materiales a baja dosis, de uso diario durante un tiempo determinado, en el hogar por parte del paciente, a base de peróxido de hidrógeno (AU)


Current bleaching treatments aim to improve the aesthetic quality of the patients' smile, applying minimally invasive techniques and materials. There are many products on the market available to both the public and dental professionals whose action is based on a direct contact with a tooth, in a time band and in a specific application system, of materials such as hydrogen peroxide or carbamides, a different concentrations. In general, those with high concentrations are used in dental clinic treatments, with less exposure of the tooth in time, the material most widely used in this type of bleaching tends to be carbamide. Whereas, in order to avoid posterior hypersensitivity, oral and perioral mucosal damage and even the carcinogenic potential of bleaching, the use of low-dose, daily-use materials for a given time in the home has been increasingly used Of the patient, based on hydrogen peroxide (AU)


Assuntos
Humanos , Clareamento Dental/métodos , Clareadores Dentários/análise , Sensibilidade da Dentina/prevenção & controle , Peróxido de Hidrogênio/farmacocinética , Microabrasão do Esmalte/métodos , Clareamento Dental/efeitos adversos
3.
Cient. dent. (Ed. impr.) ; 13(1): 33-40, ene.-abr. 2016. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-152742

RESUMO

Introducción: La hiperestesia dentinaria se caracteriza por un dolor intenso, de corta duración, asociado a la exposición de la dentina en respuesta a estímulos térmicos, táctiles, osmóticos o químicos. De prevalencia creciente, reduce la calidad de vida del paciente. El objetivo principal fue evaluar la eficacia de un gel bioadhesivo dental con dióxido de silicio obliterante, nitrato potásico y monofluorofosfato sódico en pacientes con hiperestesia dentinaria. Como objetivo secundario se valoraron su aceptabilidad y tolerancia. Métodos: El producto se aplicó durante 14 días, 3 veces/día, después de la limpieza dental y se mantuvo sin aclarar 30 minutos (n=19). Se evaluó su eficacia mediante exploración odontológica por técnica táctil y de chorro de aire. Al finalizar el estudio los pacientes completaron un cuestionario de percepción del producto. Resultados: La evaluación odontológica mostró una reducción significativa de la hipersensibilidad dental en todos los puntos temporales del estudio (p<0,05) mediante técnica táctil y de chorro de aire. Esta mejoría fue sostenida y aumentó a medida que avanzó el tratamiento. Todas las preguntas sobre la eficacia del producto y sus características organolépticas percibidas tuvieron una respuesta positiva. Los resultados del tratamiento fueron considerados muy satisfactorios/satisfactorios por un 95% de los pacientes. No se observó ninguna reacción adversa significativa derivada del uso del producto. Conclusiones: El gel bioadhesivo dental con dióxido de silicio obliterante, nitrato potásico y monofluorofosfato sódico, administrado 3 veces/día, consiguió una reducción significativa de la hipersensibilidad dental, mejoría que fue aumentando con el tiempo. El producto presentó muy buena aceptabilidad y tolerancia (AU)


Introduction: Dentin hypersensitivity is characterized by an acute pain of short duration associated with exposure of dentin to thermal, tactile, osmotic or chemical stimuli. It shows increasing prevalence and reduces the quality of life of patients. The main objective was to evaluate the effectiveness of a dental bio-adhesive gel with precipitated amorphous silica, potassium nitrate, and sodium monofluorophosphate in patients with dentin hypersensitivity. The secondary objective was to evaluate acceptability and tolerance of the product. Methods: The product was applied for 14 days, 3 times / day after habitual cleanliness routine and was not rinsed for 30 minutes. Its efficacy was evaluated by sensitive touch and air jet techniques. At the end of the study the patients filled a subjective questionnaire about the perception of the product. Results: The dental evaluation showed a significant reduction of dental hypersensitivity at all time points of the study (p<0.05) according to the sensitive touch and air jet technique results. This improvement increased as the treatment progressed. All questions about the effectiveness of the product and its organoleptic characteristics received a positive answer. Treatment results were considered very satisfactory or satisfactory by 95% of patients. No significant adverse reactions associated to the product were observed. Conclusions: Dental bio-adhesive gel with precipitated amorphous silica, potassium nitrate, and sodium monofluorophosphate, administered 3 times / day resulted in a significant reduction of dental hypersensitivity, and this improvement increased with time. The product showed very good acceptability and tolerance (AU)


Assuntos
Humanos , Hiperestesia/tratamento farmacológico , Dessensibilizantes Dentinários/uso terapêutico , Sensibilidade da Dentina/tratamento farmacológico , Géis/uso terapêutico , Dióxido de Silício/farmacocinética , Fluoreto de Sódio/farmacocinética , Resultado do Tratamento
4.
Med. oral patol. oral cir. bucal (Internet) ; 18(2): 298-305, mar. 2013. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-112401

RESUMO

Objectives: Periodontal therapy is one of the etiological factors of dentine hypersensitivity (DH). This study aimed to evaluate the efficacy of %8Arginine-CaCO3 on DH that affects patients after periodontal treatment. Study design: Seventy-one teeth from the volunteers (n=36) with history of DH caused by periodontal therapy were included in this study, and randomly divided into two groups: group-1, who received 8%Arginine-CaCO3 and group-2, who received 1.23%NaF-gel. The clinical indices were recorded at first visit. DH was evaluated by using tactile, air-blast, and thermal stimuli. The subject’s response was recorded at baseline, immediately (Day-0) and one month after the application. Results and conclusions: The results were statistically analyzed, and it was found that 8% Arginine-CaCO3 treatment was more effective than 1.23% NaF-gel at time intervals. Sensitivity score differences between the groups were statistically significant at Day-28. The 8% Arginine-CaCO3 group exhibited statistically significant reduction in DH on three stimuli at baseline to Day-28. It was concluded that 8% Arginine-CaCO3 is more effective than 1.23% NaF-gel in reduction of patients’ pain (AU)


Assuntos
Humanos , Arginina/uso terapêutico , Sensibilidade da Dentina/tratamento farmacológico , Doenças Periodontais/cirurgia , Flúor/uso terapêutico , Aplainamento Radicular/métodos
5.
Med. oral patol. oral cir. bucal (Internet) ; 17(3): 483-490, mayo 2012. tab
Artigo em Inglês | IBECS | ID: ibc-103485

RESUMO

Aim: This randomized, double blind, split mouth study was aimed to compare three dentin desensitizing treatment modalities. Methods: Two hundred sixty teeth of 25 patients; each having at least 2 hypersensitive teeth in each quadrant, were included. Teeth were randomized to 4 groups: Group A treated with 2% NaF solution, Group B received GLUMA®; an aqueous solution of Hydroxy-Ethyl-Methacrylate and Glutarldehyde, (HEMA-G), Group C received iontophoresis with distilled water (placebo) and Group D was treated with NaF-iontophoresis. Pain response was evaluated on a visual analogue scale (VAS), by using tactile, air blast and cold-water stimuli at 0-day, 15-day, 1-month and 3-months interval. Results: All treatments were effective in reducing dentinal hypersensitivity significantly, Group D and Group B were more effective than Group A and Group C at all time intervals. Group D and Group B were equally effective in reducing dentinal hypersensitivity at 15-day and 1-month interval but Group D was more effective at 3-months. Conclusion: All treatment modalities were more effective in reducing hypersensitivity than placebo. 2% NaF-iontophoresis and HEMA-G were more effective than 2% NaF local application at all time intervals. But at 3-months, 2% NaF-iontophoresis was more effective than HEMA-G, while placebo produced no significant effect in reduction of hypersensitivity (AU)


No disponible


Assuntos
Humanos , Sensibilidade da Dentina/tratamento farmacológico , Iontoforese/métodos , Adesivos Dentinários/análise , Fluoresceína/análise , Método Duplo-Cego , Ensaios Clínicos Controlados Aleatórios como Assunto
6.
Med. oral patol. oral cir. bucal (Internet) ; 17(3): 501-505, mayo 2012. tab
Artigo em Inglês | IBECS | ID: ibc-103488

RESUMO

Objective: To determine the E. faecalis biofilm formation on the surface of five adhesive systems (AS) and its relationship with roughness.Study Design: The formation of E. faecalis biofilms was tested on the surface of four dual-cure AS: AdheSE DC, Clearfil DC Bond, Futurabond DC and Excite DSC and one light-cure antimicrobial AS, Clearfil Protect Bond, after 24 hours of incubation, using the MBEC high-throughput device. Results: E. faecalis biofilms grew on all the adhesives. The least growth of biofilm was on Excite DSC, Clearfil Protect Bond, and the control. Futurabond DC resulted in the greatest roughness and biofilm amount. There was a close relationship between the quantity of biofilm and roughness, except for Clearfil Protect Bond, which showed little biofilm but high roughness.Conclusion: None of the tested AS prevented E. faecalis biofilm formation, although the least quantity was found on the surface of Clearfil Protect Bond (AU)


No disponible


Assuntos
Humanos , Enterococcus faecalis/crescimento & desenvolvimento , Biofilmes/crescimento & desenvolvimento , Adesivos Dentinários/análise , Fatores de Risco , Sensibilidade da Dentina/terapia
7.
Av. odontoestomatol ; 25(3): 137-146, mayo-jun. 2009. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-78647

RESUMO

La hipersensibilidad dentinal se define como un dolor que surge desde la dentina expuesta y representa diferentes entidades clínicas. La presentación de casos en personas jóvenes se está incrementando particularmente al parecer debido a dietas acidogénicas, malos hábitos, técnicas de cepillado deficientes y el uso indiscriminado de productos de blanqueamiento dental. La exposición dentinal se puede deber a procesos, tanto físicos como químicos, que conducen a la pérdida ya sea del esmalte y el cemento o del tejido gingival. Los factores causales rara vez actúan aisladamente e incluyen erosión, atrición, abrasión, bruxismo, blanqueamiento, medicación, envejecimiento, condiciones genéticas, recesión gingival y enfermedad periodontal. Existe un amplio rango de productos disponibles para el tratamiento con el fin de ocluir los túbulos dentinales o bloquear la transmisión neural desde la pulpa. La mayoría de opciones son reversibles y usan agentes químicos tales como fluoruros, oxalato, sales de estroncio o potasio o agentes adhesivo dentinarios. Las opciones no reversibles deben ser empleadas solamente después de intentar varias veces las reversibles. Esto usualmente incluye la colocación de restauraciones permanentes, ajustes oclusales o cirugía periodontal. El diagnóstico adecuado, las estrategias de manejo y la educación del paciente son cruciales para el manejo de cualquier intervención (AU)


Dentine hypersensitivity is defined as pain arising from exposed dentine and represents a distinct clinical entity. Reported cases are increasing particularly among the younger age groups and are thought to be due to acidogenic diets, destructive habits, poor tooth brushing techniques, and the increased use of tooth whitening products. Dentine exposure may be due to a number of processes, both physical and chemical, that lead to either loss of enamel/ cementum or loss of gingival tissue. These causative factors seldom act in isolation and include erosion, abrasion, attrition, abfraction, bruxing, bleaching, medication, ageing, genetic conditions, gingival recession, and periodontal disease. There are diverse range of treatment products available, which aim at either occluding the dentinal tubules or blocking the neural transmission from the pulp. Most reversible options make use of chemical agents such as fluorides, oxalate, strontium or potassium salts, or dentine-bonding agents. Non-reversible options should only be employed after one or more of the reversible options have been attempted. These usually involve placement of permanent restorations, occlusal adjustments or periodontal flap surgery. Careful diagnosis, patient counseling and management strategies are crucial to the success of any intervention (AU)


Assuntos
Humanos , Sensibilidade da Dentina , Sensibilidade da Dentina/etiologia , Sensibilidade da Dentina/patologia , Sensibilidade da Dentina/terapia
8.
Med. oral patol. oral cir. bucal (Internet) ; 13(3): 201-206, mar. 2008. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-67319

RESUMO

No disponible


Dentinal sensitivity is a clinical condition of some importance, particularly in periodontal patients. Symptoms appear on applying a triggering stimulus to the exposed dentine - the particularity being that the pain is similar to that of other dental disorders of different etiology and treatment. Hence the importance of a correct differential diagnosis. The main problem not only in clinical practice when treating the disorder, but also in designing studies for the objectiveevaluation of dentinal sensitivity, is the difficulty of standardizing, evaluating and interpreting the clinical condition in its different degrees. Thus, consensus in designing and evaluating studies of dentinal sensitivity would facilitate our understanding of its etiology, and the assessment of possible treatments. Such studies may center their methodology on individual patient response or on the nature of the triggering stimulus. The present study provides an updated and global view of the disorder, and reviews the basic protocol for the objective assessment of dentinal sensitivity


Assuntos
Humanos , Sensibilidade da Dentina/diagnóstico , Diagnóstico Diferencial , Fatores de Risco , Esmalte Dentário/lesões
9.
Med. oral patol. oral cir. bucal (Internet) ; 12(7): 542-548, nov. 2007. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-65292

RESUMO

No disponible


Objective: The aim of this study was to investigate the different smear layer morphologies produced by instrumentation with a hand curette and a periodontal sonic scaler for potential removal by soft acidic solution. The effect of a new oxalate-containing phytocomplex spray in preventing tubules exposure after citric acid solution application was also evaluated. Methods: Thirty recently extracted human teeth were used to obtain root dentinal fragments and divided in two groups: Curette treatment (CRT) root planed applying 30 working strokes to each surface using a Gracey’s curette 5-6 and Ultrasonic scaler (USC) treated using a periodontal scaler mounted on an ultrasonic hand-piece for 30 seconds.Each principal group was further divided in three sub-groups (Control, Acid challenge and Acid/Phyto-oxalate). The control group samples were immersed in distilled water buffered to pH 7.4 using NH4OH solution. The samples of the acid challenge group were immersed in a solution of citric acid 0,02M; [pH 2.5] for 3 minutes. The samples of the Acid/Phyto-oxalate group were sprayed for 15 sec with a 1.5% phytocomplex spray prior to immersion. Samples were examined using SEM. Results: Ultrasonic instrumentation created a very thin smear layer whereas curettes produced a multilayered smear layer. The acidic solution was able to remove the smear layer from root surfaces treated with ultrasonic instrumentation exposing the dentinal tubules. The smear layer on the root surfaces treated with hand instruments was not completely removed. The phytocomplex solution was able to prevent dentinal tubule exposure. Conclusions:Acidic soft drinks are able to remove the smear layer created on root surfaces during different non-surgical periodontally treatments. The smear plugs created by hand instrumentation appeared to be more resistant to acid attack. The tested phytocomplex solution protected the dentine from demineralization and it might prevent post-treatment dentinal hypersensitivity induced by acidic soft drinks


Assuntos
Humanos , Ácido Cítrico/farmacocinética , Sensibilidade da Dentina/induzido quimicamente , Oxalatos/farmacocinética , Sensibilidade da Dentina/diagnóstico , Substâncias Protetoras/administração & dosagem
10.
RCOE, Rev. Ilustre Cons. Gen. Col. Odontól. Estomatól. Esp ; 11(3): 281-290, mayo-jun. 2006. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-120089

RESUMO

El objetivo de este trabajo es evaluar la capacidad in vitro de sellar túbulos dentinarios y reducir la permeabilidad dentinaria que tienen catorce productos propuestos para el tratamiento de la sensibilidad cervical dentinaria (SCD) y evaluar el efecto que la humedad y el cepillado tienen sobre ellos. Material y método: 140 discos de dentina (obtenidos de 3º molares humanos recién extraídos) se dividen en catorce grupos de 10 discos que se montan en un sistema de perfusión basado en la máquina de Pashley que mantiene una presión positiva sobre las discos. Cada disco se graba con ácido ortofosfórico al 35% y su permeabilidad se mide en una hora, este valor se considera el de referencia (100%). Un disco queda como control y se aplica tratamiento a los otros 9, midiéndose su permeabilidad en una hora. Después se deja un disco como control, a los 8 restantes se les realiza un lavado y cepillado, viéndose su permeabilidad en una hora. Resultados: Todos los productos afectaron a la perfusión dentinaria en mayor o menor grado. El cepillado de las muestras con el producto aplicado afectó a la permeabilidad, que en todas las preparaciones aumentó en mayor o menor grado. El mejor producto fue el Seal & Protect, seguido del Amm-i-dent + Xeno III, el Clearfil SE Bond y el Amm-i-dent + Scotchbond1. Conclusiones: Todos los productos presentan mala resistencia al lavado y cepillado, lo que justifica el limitado éxito clínico de los agentes desensibilizantes. El que los cuatro mejores productos o combinaciones en cuanto a reducción de permeabilidad pertenezcan al grupo de los adhesivos dentinarios indica que estos pueden ser una alternativa válida para ser investigada y perfeccionada como tratamiento de la SCD (AU)


The aim of this study is to evaluate the “in vitro” capability of fourteen agents proposed for the treatment of cervical dentin sensibility (CDS) to seal dentine tubules, to reduce dentine permeability and to resist the effect of wetness and tooth brushing. Materials and Methods: 140 dentin discs were obtained from freshly extracted human third molars. Samples were divided into fourteen groups of 10 each and were mounted in a perfusion device based on the Pashley ´s system. Each disc was etched with 35% phosphoric acid. Permeability was measured after 1 hour, this value was considered the reference value (100%). One disc was used as a control and nine were treated with a bonding system. Permeability was measured again after 1 hour. One disc was used as a control and 8 were washed with water and subjected to simulated tooth brushing equivalent to three weeks of normal brushing. Subsequebtly, permeability was measured again. Results: All systems reduced dentinal perfusion when applied. Brushing of products produced an increase of permeability. The best results were obtained with Seal & Protect, follwed by Amm-i-dent + Xeno III, Clearfil SE Bond and Amm-i-dent+Scotchbond 1. Conclusions: All products have shown low resistance to washing and brushing. This can justify unsatisfactory clinical results in reducing dentinal sensibility. The best four products were all adhesives or a combination of these, it seems to indicate that adhesives are a good choice to be investigated and improved for the treatment of CDS (AU)


Assuntos
Humanos , Adesivos Dentinários/análise , Sensibilidade da Dentina/terapia , Permeabilidade da Dentina , Escovação Dentária/efeitos adversos , Higiene Bucal/efeitos adversos
11.
RCOE, Rev. Ilustre Cons. Gen. Col. Odontól. Estomatól. Esp ; 11(3): 281-290, mayo-jun. 2006. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-68903

RESUMO

El objetivo de este trabajo es evaluar la capacidad in vitro de sellar túbulos dentinarios y reducir la permeabilidad dentinaria que tienen catorce productos propuestos para el tratamiento de la sensibilidad cervical dentinaria (SCD) y evaluar el efecto que la humedad y el cepillado tienen sobre ellos. Material y método: 140 discos de dentina (obtenidos de 3º molares humanos recién extraídos) se dividen en catorce grupos de 10 discos que se montan en un sistema de perfusión basado en la máquina de Pashley que mantiene una presión positiva sobre las discos. Cada disco se graba con ácido ortofosfórico al 35% y su permeabilidad se mide en una hora, este valor se considera el de referencia (100%). Un disco queda como control y se aplica tratamiento a los otros 9, midiéndose su permeabilidad en una hora. Después se deja un disco como control, a los 8 restantes se les realiza un lavado y cepillado, viéndose su permeabilidad en una hora. Resultados: Todos los productos afectaron a la perfusión dentinaria en mayor o menor grado. El cepillado de las muestras con el producto aplicado afectó a la permeabilidad, que en todas las preparaciones aumentó en mayor o menor grado. El mejor producto fue el Seal & Protect, seguido del Amm-i-dent + Xeno III, el Clearfil SE Bond y el Amm-i-dent + Scotchbond1. Conclusiones: Todos los productos presentan mala resistencia al lavado y cepillado, lo que justifica el limitado éxito clínico de los agentes desensibilizantes. El que los cuatro mejores productos o combinaciones en cuanto a reducción de permeabilidad pertenezcan al grupo de los adhesivos dentinarios indica que estos pueden ser una alternativa válida para ser investigada y perfeccionada como tratamiento de la SCD


The aim of this study is to evaluate the “in vitro” capability of fourteen agents proposed for the treatment of cervical dentin sensibility (CDS) to seal dentine tubules, to reduce dentine permeability and to resist the effect of wetness and tooth brushing. Materials and Methods: 140 dentin discs were obtained from freshly extracted human third molars. Samples were divided into fourteen groups of 10 each and were mounted in a perfusion device based on the Pashley ´s system. Each disc was etched with 35% phosphoric acid. Permeability was measured after 1 hour, this value was considered the reference value (100%). One disc was used as a control and nine were treated with a bonding system. Permeability was measured again after 1 hour. One disc was used as a control and 8 were washed with water and subjected to simulated tooth brushing equivalent to three weeks of normal brushing. Subsequebtly, permeability was measured again. Results: All systems reduced dentinal perfusion when applied. Brushing of products produced an increase of permeability. The best results were obtained with Seal & Protect, follwed by Amm-i-dent + Xeno III, Clearfil SE Bond and Amm-i-dent+Scotchbond 1. Conclusions: All products have shown low resistance to washing and brushing. This can justify unsatisfactory clinical results in reducing dentinal sensibility. The best four products were all adhesives or a combination of these, it seems to indicate that adhesives are a good choice to be investigated and improved for the treatment of CDS


Assuntos
Humanos , Coroa do Dente/fisiopatologia , Sensibilidade da Dentina/terapia , Materiais Dentários/análise , Colagem Dentária , Permeabilidade Dentária
12.
Med. oral patol. oral cir. bucal (Internet) ; 11(1): 94-99, ene. 2006. ilus
Artigo em Espanhol | IBECS | ID: ibc-042638

RESUMO

El blanqueamiento de los dientes vitales que realiza el/la paciente domiciliariamente con férulas bajo supervisión del/de la dentista es una alternativa interesante entre las que integran este tipo de terapéutica odontológica, ya sea, de forma aislada o combinada con alguna de las modalidades de tratamiento en la consulta. En este procedimiento blanqueador se usan peróxidos de baja concentración que se aplican sobre el esmalte dentario mediante una cubeta individualizada especialmente diseñada para ello. El objetivo del presente trabajo es analizar y comparar dos productos blanqueadores comerciales de diferente concentraciónindicados para esta técnica, VivaStyle (Vivadent) y FKD (Kin); el primero de ellos es un peróxido de carbamida al 10%, mientras que el segundo es un peróxido de hidrógeno al 3,5%. Se analizan los parámetros que deben ser controlados durante la puesta en práctica de este tipo de procedimiento y se presentan 6 casos (3 de ellos tratados con uno de los productosmencionados y los otros 3 con el otro) en los que se constata su capacidad blanqueadora y la aparición y la intensidad de hipersensibilidad postoperatoria. Los resultados obtenidos muestran que ambos productos son eficaces para la función para la que han sido desarrollados. En general, la hipersensibilidad dentaria es mínima


Tray bleaching of vital teeth performed at home by the patient under the dentist’s supervision, whether alone or in combinationwith any of the in-office techniques, provides an interesting alternative to other methods employed in this type of dental treatment. This bleaching procedure applies low-concentration peroxides to the enamel by means of a custom-made mouth tray specifically designed for this purpose. The aim of this study is to examine and compare two commercially-available bleaching products, at equivalent concentrations, for use in this technique: VivaStyle (Vivadent) and FKD (Kin); the former is a 10% carbamide peroxide and the latter a 3.5% hydrogen peroxide formulation. It examines the parameters that must be monitored during the application of this type of procedure and presents 6 cases (3 treated with one of the above-mentioned products and the other 3 with the other), establishing the bleaching power of the products and the appearance and intensity of post-operatory hypersensitivity. The results obtained show that both products are effective for the purpose for which they were designed. In general, dental hypersensitivity was minimal


Assuntos
Humanos , Dispositivos para o Cuidado Bucal Domiciliar , Peróxido de Hidrogênio/uso terapêutico , Oxidantes/uso terapêutico , Peróxidos/uso terapêutico , Clareamento Dental/métodos , Ureia/análogos & derivados , Sensibilidade da Dentina/induzido quimicamente , Combinação de Medicamentos , Clareamento Dental/efeitos adversos , Clareamento Dental/instrumentação , Descoloração de Dente/tratamento farmacológico , Ureia/uso terapêutico
13.
Av. odontoestomatol ; 20(5): 233-237, sept.-oct. 2004. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-36171

RESUMO

De entre las complicaciones postoperatorias en prótesis fija, la sensibilidad ocupa un lugar destacado para algunos autores. Se evaluó la frecuencia de sensibilidad postoperatoria en dos grupos: (1) cementando una prótesis fija sólo con ionomero de Vidrio -IV- y (2) añadiendo previamente al cementado con IV un agente desensibilizante. Se puede concluir que la aplicación de un desensibilizante no supuso una mejoría clínica significativa en la sensibilidad postoperatoria (AU)


Between the most frequent complications in partial fixed prosthodontics, the postoperative sensitibity occupies an outstanding place for several authors. In this work was evaluated the frequency of postoperative sensitibity in 42 patients with full-coverage restorations were cemented with glass ionomer (group 1) or dentin bonding agent and glass ionomer (group 2). There were not differences between the groups (AU)


Assuntos
Adulto , Feminino , Masculino , Pessoa de Meia-Idade , Humanos , Prótese Parcial Fixa/efeitos adversos , Sensibilidade da Dentina/complicações , Complicações Pós-Operatórias
14.
Av. odontoestomatol ; 19(5): 233-237, sept.-oct. 2003.
Artigo em Espanhol | IBECS | ID: ibc-27479

RESUMO

La sensibilidad dentaria 1 es un problema común que se presenta entre el 9 y el 30 por ciento de la población adulta. La teoría hidrodinámica es aceptada como uno de los mecanismos de inducción de la respuesta pulpar dolorosa, debido a que los estímulos provocan el movimiento del fluido y para ello es necesario que la dentina este expuesta y que los túbulos dentinarios estén abiertos y permeables a la pulpa. Es fundamental realizar el diagnostico diferencial con otras causas de dolor dental e identificar los factores etiológicos y predisponentes (AU)


Dental sensitivity is a common problem and it affects 9 and 30% the adult poblation. The hidrodynamyc theory is cited as the mechanism of induction of a painful pulpal response and implies that stimuli transmission across dentine increase the rate of fluid flow through dentinal tubules and for this to accur the dentinal tubules must be opened and permeable to the pulp. An appropiate tretametn needs a diferential diagnosis eith other causes of dental pain and the identification of predisponing etiologic factors (AU)


Assuntos
Humanos , Sensibilidade da Dentina/diagnóstico , Clareamento Dental/efeitos adversos , Sensibilidade da Dentina/etiologia , Diagnóstico Diferencial , Escovação Dentária/efeitos adversos , Bruxismo/complicações , Causalidade , Erosão Dentária/complicações , Abrasão Dentária/complicações
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA