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Id: biblio-1053117
Autor: Rodríguez Pulido, Jesús Israel; Martínez Sandoval, Gloria; Garza Enríquez, Marianela; Chapa Arizpe, María Gabriela; Nakagoshi Cepeda, María Argelia Akemi; Nakagoshi Cepeda, Sergio Eduardo.
Título: Acondicionamiento radicular en el tratamiento periodontal no quirúrgico y quirúrgico / Root conditioning in non-surgical and surgical periodontal therapy
Fonte: Rev. ADM = ADM;76(5):278-281, sept.-oct. 2019.
Idioma: es.
Resumo: La instrumentación mecánica durante el tratamiento periodontal trae consigo la formación de escombros microcristalinos que inhiben la adhesión tisular a la superfi cie radicular y favorece la proliferación bacteriana, lo cual perjudica los resultados del tratamiento periodontal a corto y largo plazo. Hoy en día el acondicionamiento radicular con el uso de biomodifi cadores es una opción de tratamiento adicional en el tratamiento de la periodontitis y el tratamiento de cobertura radicular. El objetivo del presente estudio es realizar una revisión de la literatura acerca de las aplicaciones y del acondicionamiento radicular con ácido cítrico, tetraciclina, EDTA y láser en el tratamiento periodontal no quirúrgico y quirúrgico (AU)

Mechanical instrumentation during periodontal treatment brings the formation of microcrystalline debris that inhibits tissue adhesion to the root surface and favors bacterial proliferation, which harms the results of the short and long term periodontal treatment. Nowadays, root conditioning with the use of biomodifi cators is an additional treatment option in the treatment of periodontitis and root coverage therapy. The aim of the present study is to conduct a literature review about the applications and the root conditioning with citric acid, tetracycline, EDTA and laser in the non surgical and surgical periodontal treatment (AU)
Descritores: Doenças Periodontais/cirurgia
Doenças Periodontais/terapia
Raiz Dentária/efeitos dos fármacos
-Tetraciclinas
Raspagem Dentária
Aplainamento Radicular
Ácido Edético
Ácido Cítrico
Terapia a Laser
Limites: Seres Humanos
Tipo de Publ: Revisão
Responsável: AR29.1 - Biblioteca


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Id: biblio-901768
Autor: Álvarez Rodríguez, Javier; Wolfshon Manhard, Bernardo; Mier Sanabria, Mónica.
Título: Estabilizador Endodóntico en Fractura Complicada de Raíz en visita única / Endodontic Stabilizer in Complicated Root Fracture in a single visit
Fonte: Rev. habanera cienc. méd;16(5):761-769, set.-oct. 2017. ilus.
Idioma: es.
Resumo: Introducción: La fractura complicada de raíz del tercio medio es una entidad compleja de pronóstico mayormente desfavorable y curso sintomático, donde el éxito clínico en no pocas oportunidades se convierte en una utopía, dado que la estabilidad en el afrontamiento de los bordes libres de los fragmentos fracturados es difícil de lograr. En este sentido el estabilizador edodóntico busca garantizar un anclaje bilateral satisfactorio, que posibilite unificar en una consulta los tiempos operatorios necesarios para un tratamiento exitoso. Objetivo: Describir la factibilidad del uso de un estabilizador endodóntico en el manejo de una fractura complicada de raíz del tercio medio en una visita. Presentación del caso: Paciente de 60 años, femenina que acude a consulta tras sufrir traumatismo dentoalveolar consistente con fractura complicada de raíz del tercio medio en 21; a los rayos X se observa ligero ensanchamiento periodontal y bordes discontinuos. Se realiza tratamiento edodóntico radical mediante la aplicación de un estabilizador intraconducto en la reducción de la fractura. Conclusiones: El uso de un estabilizador endodóntico en el manejo de una fractura complicada de raíz del tercio medio realizado en una sola visita es una alternativa factible de realizar en el tratamiento mediato e inmediato, ya que supone una rápida recuperación de las funciones buco-dentales del paciente(AU)

Introduction:The complicated fracture of the medium third of the root is a complex entity, particularly with an unfavorable prognosis and a symptomatic course in which the clinical success becomes a utopia in not just a few opportunities because the stability by confrontation of the free edges of the fractured fragments is difficult to achieve. In this respect, the endodontic stabilizer is used to guarantee a satisfactory bilateral anchorage that gives the possibility to unify, in a single visit, the necessary operation times for a successful treatment. Objective: To describe the feasibility of the use of an endodontic stabilizer in the management of a complicated fracture of the medium third of the root in a single visit. Case presentation: Female 60-year-old patient who comes to the consulting room after suffering from a consistent dentoalveolar trauma with a complicated fracture of the medium third of the root in tooth no.21; radiograph reveals a slight periodontal widening, and discontinuous edges. Radical endodontic treatment is performed with the placement of an intraductal stabilizer in the reduction of the fracture. Conclusions: The use of an endodontic stabilizer in the management of a complicated fracture of the medium third of the root in a single visit to the dentist is a feasible alternative in the mediate and immediate treatment seeing that it supposes a fast recovery of the bucco-dental functions of the patient(AU)
Descritores: Fraturas dos Dentes
Raiz Dentária/lesões
Implantação Dentária Endo-Óssea Endodôntica/métodos
Limites: Seres Humanos
Feminino
Meia-Idade
Responsável: CU1.1 - Biblioteca Médica Nacional


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Id: lil-785019
Autor: Silva, Sérgio Ribeiro da; Silva Neto, José Dias da; Schnaider, Taylor Brandão; Veiga, Daniela Francescato; Novo, Neil Ferreira; Mesquita Filho, Marcos; Ferreira, Lydia Masako.
Título: The use of a biocompatible cement in endodontic surgery. A randomized clinical trial 1
Fonte: Acta cir. bras;31(6):422-427graf.
Idioma: en.
Resumo: ABSTRACT PURPOSE: To evaluate the clinical applicability of Pozzolana Biologic Silva cement (PBS(r)) in endodontic surgery. METHODS: Persistent apical periodontitis was diagnosed in 30 teeth of 12 patients by cone-beam computed tomography (CT). All patients had 2 or 4 affected teeth and underwent endodontic surgery with root-end filling. Patients with 2 affected teeth had one tooth (control) treated with mineral trioxide aggregate (MTA-Angelus(r)) as a root-end filling material, and the other tooth treated with PBS (experiment). When the patient had four affected teeth, two of them were treated with MTA and two with PBS. Six months after surgery, all patients were assessed by CT scan. Between-group comparisons of measurements were performed using the Wilcoxon test. RESULTS: Periradicular tissue regeneration was observed in all cases. Significant within-group differences in long axes of the lesion were found in the bucco-palatal direction (PBS group, p=0.0012; MTA group, p=0.024) and coronal-apical direction (PBS group, p=0.0007; MTA group, p=0.0015) between pre- and postoperative measurements. CONCLUSIONS: Pozzolana Biologic Silva cement can be used in the treatment of persistent periradicular lesions. The clinical use of PBS as a root-end filling material may be an alternative to MTA. PBS has additives, which provide enhanced strength.
Descritores: Óxidos/uso terapêutico
Periodontite Periapical/cirurgia
Materiais Biocompatíveis/uso terapêutico
Compostos de Cálcio/uso terapêutico
Compostos de Alumínio/uso terapêutico
Cimentos Dentários/uso terapêutico
-Apicectomia/métodos
Periodontite Periapical/diagnóstico por imagem
Período Pós-Operatório
Regeneração/fisiologia
Raiz Dentária/cirurgia
Raiz Dentária/diagnóstico por imagem
Estudos Prospectivos
Combinação de Medicamentos
Tomografia Computadorizada de Feixe Cônico
Limites: Seres Humanos
Adolescente
Adulto
Meia-Idade
Adulto Jovem
Tipo de Publ: Ensaio Clínico Controlado Aleatório
Responsável: BR1.1 - BIREME


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Id: biblio-1048477
Autor: Toscano, Marina Andrea; Zacharczuk, Giselle Anahí; López, Graciela Edith.
Título: Fractura radicular de tercio medio: tratamiento y cinco años de seguimiento / Treatment and 5-year follow-up of root fractures in the middle third
Fonte: Rev. Asoc. Odontol. Argent;107(3):103-109, jul.-sept. 2019. ilus.
Idioma: es.
Resumo: Objetivo: Informar el tratamiento de dos piezas con fractura radicular horizontal del tercio medio, patrones de curación y seguimiento por cinco años. Caso clínico: Se presentó a la consulta una niña de 9 años de edad con traumatismo de 10 días de evolución. Examen clínico: fractura amelodentinaria restaurada en la pieza 2.2, movilidad y sensibilidad a la percusión y palpación en ambos incisivos centrales superiores. Examen radiográfico: fractura radicular horizontal de tercio medio en piezas 1.1 y 2.1. Tratamiento: inmovilización con placa removible durante 4 semanas, indicaciones de higiene y uso, y controles de seguimiento. Al primero y al cuarto mes, ambos incisivos mostraron ausencia de movilidad, reacción positiva de sensibilidad y signos radiográficos de reabsorción superficial interna y externa. A los 6 meses, el 1.1 evidenció signos de reparación con tejido conectivo, y el 2.1, signos clínicos y radiográficos de necrosis pulpar del fragmento coronario. Se realizó el tratamiento endodóntico de la pieza 2.1 hasta el nivel de la fractura con pasta a base de hidróxido de calcio, y luego de la comprobación de la formación de una barrera de tejido duro, se obturó definitivamente con gutapercha y sellador endodóntico. Cinco años después del traumatismo, ambos incisivos se mostraron asintomáticos y los estudios por imágenes evidenciaron una completa consolidación de las fracturas. Conclusión: Un diagnóstico temprano, procedimientos apropiados de tratamiento, el conocimiento de los procesos curativos y un monitoreo cuidadoso de todos los parámetros clínicos y radiográficos son claves para un enfoque correcto y conservador de las piezas dentarias con fractura radicular (AU)

Aim: To report the treatment, healing patterns and fiveyear follow-up of two permanent incisors with horizontal root fracture located in the middle third. Case report: A 9-year-old girl who came to our consultation 10 days after a dental trauma. Clinical examination: restored enamel-dentin fracture in upper left lateral incisor; mobility and sensitivity to percussion and palpation in both upper central incisors. Radiographic examination: horizontal root fracture in the middle third of both upper central incisors. Treatment: stabilization with a removable splint for 4 weeks, indications for hygiene, use of the splint and follow-up controls. At first and fourth month, central incisors presented absence of mobility, positive response to pulp testing and radiographic signs of internal and external superficial resorption. At sixth month, signs of healing with connective tissue were found on the right central incisor, while the left one showed clinical and radiographic signs of necrosis of the coronal fragment. The root canal of this segment was treated initially with a calcium hydroxide paste and, after verifying the formation of a hard tissue barrier, it was filled with gutta- percha and endodontic sealer. Five years after the trauma, both central incisors were asymptomatic and imaging studies showed complete healing of the fractures. Conclusion: Early diagnosis, appropriate treatment procedures, knowledge of healing patterns and careful monitoring of clinical and radiographic parameters are key factors for a proper and conservative approach of injured tooth with root fracture (AU)
Descritores: Fraturas dos Dentes/terapia
Raiz Dentária/lesões
Dentição Permanente
-Argentina
Tratamento do Canal Radicular
Seguimentos
Incisivo/lesões
Limites: Seres Humanos
Feminino
Criança
Tipo de Publ: Relatos de Casos
Responsável: AR29.1 - Biblioteca


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Bramante, Clóvis Monteiro
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Id: lil-797979
Autor: Rodrigues, Clarissa Teles; Oliveira-Santos, Christiano de; Bernardineli, Norberti; Duarte, Marco Antonio Hungaro; Bramante, Clovis Monteiro; Minotti-Bonfante, Paloma Gagliardi; Ordinola-Zapata, Ronald.
Título: Prevalence and morphometric analysis of three-rooted mandibular first molars in a Brazilian subpopulation
Fonte: J. appl. oral sci;24(5):535-542, Sept.-Oct. 2016. tab, graf.
Idioma: en.
Projeto: FAPESP.
Resumo: ABSTRACT The knowledge of the internal anatomy of three-rooted mandibular molars may help clinicians to diagnose and plan the root canal treatment in order to provide adequate therapy when this variation is present. Objectives: To determine the prevalence of three-rooted mandibular molars in a Brazilian population using cone beam computed tomography (CBCT) and to analyze the anatomy of mandibular first molars with three roots through micro-CT. Material and Methods: CBCT images of 116 patients were reviewed to determine the prevalence of three-rooted first mandibular molars in a Brazilian subpopulation. Furthermore, with the use of micro-CT, 55 extracted three-rooted mandibular first molars were scanned and reconstructed to assess root length, distance between canal orifices, apical diameter, Vertucci's classification, presence of apical delta, number of foramina and furcations, lateral and accessory canals. The distance between the orifice on the pulp chamber floor and the beginning of the curvature and the angle of canal curvature were analyzed in the distolingual root. Data were compared using the Kruskal-Wallis test (α=0.05). Results: The prevalence of three-rooted mandibular first molars was of 2.58%. Mesial roots showed complex distribution of the root canal system in comparison to the distal roots. The median of major diameters of mesiobuccal, mesiolingual and single mesial canals were: 0.34, 0.41 and 0.60 mm, respectively. The higher values of major diameters were found in the distobuccal canals (0.56 mm) and the lower diameters in the distolingual canals (0.29 mm). The lowest orifice distance was found between the mesial canals (MB-ML) and the highest distance between the distal root canals (DB-DL). Almost all distal roots had one root canal and one apical foramen with few accessory canals. Conclusions: Distolingual root generally has short length, severe curvature and a single root canal with low apical diameter.
Descritores: Raiz Dentária/anatomia & histologia
Mandíbula/anatomia & histologia
Dente Molar/anatomia & histologia
-Valores de Referência
Raiz Dentária/diagnóstico por imagem
Brasil
Estatísticas não Paramétricas
Anatomia Transversal
Imagem Tridimensional
Polpa Dentária/anatomia & histologia
Polpa Dentária/diagnóstico por imagem
Cavidade Pulpar/anatomia & histologia
Cavidade Pulpar/diagnóstico por imagem
Tomografia Computadorizada de Feixe Cônico/métodos
Variação Anatômica
Mandíbula/diagnóstico por imagem
Dente Molar/diagnóstico por imagem
Odontometria
Limites: Seres Humanos
Masculino
Feminino
Responsável: BR1.1 - BIREME


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Id: lil-728294
Autor: Carrasco Tapia, Patricio; González Srur, Joaquín; Brizuela Cordero, Claudia; Inostroza Silva, Carolina.
Título: Estimación de la edad médico-legal usando dos métodos para la medición de la translucidez dentinaria radicular: análisis comparativo / Legal medical age estimation using two methods measuring root dentin translucency: comparative analysis
Fonte: Int. j. morphol;32(3):956-961, Sept. 2014. ilus.
Idioma: es.
Projeto: Universidad de los Andes. Facultad de Odontología Dirección de Investigación.
Resumo: En una investigación forense existen diversas incógnitas médico legales y criminalísticas por definir: especie, sexo, edad, identidad, causa y data de muerte de la víctima o victimario. Fenómenos biológicos han colaborado en estimar la edad médico legal de un individuo. Investigadores han propuesto diferentes métodos para esta estimación. El fenómeno de la translucidez dentinaria radicular se asocia con el aumento de la edad del individuo y ha demostrado ser de gran utilidad en esta estimación. El objetivo fue comparar el acierto en la estimación de la edad médico legal en tres rangos etarios predeterminados, mediante la medición de la translucidez dentinaria radicular, aplicando dos metodologías. Se realizaron mediciones de la longitud de la translucidez de piezas dentarias de una población chilena (n=94), mediante un método visual directo convencional y un método digital indirecto basado en una captura computarizada de la imagen. Se estimó la edad aplicando una tabla propuesta. Se preestablecieron tres rangos de edad: 1er rango (20-39 años), 2do rango (40­59 años) y 3er rango (60­79 años). El método digital muestra un acierto en la estimación de la edad en el 1er rango etario (93%), en comparación al método visual que muestra un acierto 2do y 3er rango (86% y 65%). Existen diferencias significativas p=0,001 entre ambos métodos para cada rango. La diferencia no es estadísticamente significativa en los porcentajes totales de aciertos en la estimación de la edad con ambos métodos. Enfrentados a la estimación de la edad en piezas dentarias con poca TDR se recomienda el método digital, considerando que tiende a una subestimación. En casos de mayor TDR recomendamos el método visual, que tiende a sobreestimar. Este trabajo demuestra que ambos métodos son igualmente efectivos.

In a forensic investigation there are several forensic and criminology unknowns to be elucidated, such as, species, sex, age, identity, cause and date of death of the victim or perpetrator. Some biological phenomena have been used to collaborate in determining the forensic age of an individual. Many authors and researchers have proposed different ways to perform this estimate. The phenomenon of root dentine translucency (RDT) is associated with the increase of age of the individual and has proven to be useful in the estimation of this unknown. The objective of this study was to compare the accuracy in estimating forensic age in three age ranges, by measurement of RDT, using two different methodologies. The protocol consists of taking measurements of the length translucency of dental pieces in a Chilean population (n=94), by direct visual method conventionally used and an indirect digital method based on the capture of a computerized image. The age was estimated applying a table: Three age ranges are preset: 1st range (20-39 ages), 2nd range (40-59 ages) and 3rd range (60-79 ages). The digital method gave better results in the estimation of age in the 1st age range (93%), compared to the visual method that was more assertive in the 2nd and 3rd range (86% and 65%). There are significant differences p=0.001 between the methods for each age range. The difference between the total percentages of successes in the age estimate obtained with both methods are not statistically significant. In conclusion, for age determination in teeth with very little translucency the digital method is recommended, although we must consider that this method tends to underestimate age. In cases of higher RDT we recommend using the visual method; however this method tends to overestimate age. Regardless of the above conclusion, this work shows that both methods are equally effective.
Descritores: Raiz Dentária/anatomia & histologia
Determinação da Idade pelos Dentes/métodos
Dentina/anatomia & histologia
Odontologia Legal/métodos
-Processamento de Imagem Assistida por Computador
Luz
Limites: Seres Humanos
Masculino
Feminino
Adulto
Meia-Idade
Idoso
Tipo de Publ: Estudo Comparativo
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-975688
Autor: Vega-Lizama, Elma María; Aguilar-Vera, Lilian de la Luz; Tiesler, Vera; Ramírez-Salomón, Marco; Alvarado-Cárdenas, Gabriel; López-Villanueva, María Eugenia; Cucina, Andrea.
Título: Morfología radicular y mediciones apicales en primeros molares en una población maya / Root morphology and apical measurements of first molars in a Mayan population
Fonte: Int. j. morphol;36(4):1229-1234, Dec. 2018. tab, graf.
Idioma: es.
Projeto: CONACYTCV; . CONACYT-CV.
Resumo: El conocimiento preciso de la morfología radicular dental son claves para el éxito en las terapias endodónticas. El objetivo de este estudio fue evaluar las distintas variaciones de la morfología radicular y apical en primeros molares superiores e inferiores de una población maya moderna. Se observaron microfotografías provenientes de 80 primeros molares superiores e inferiores, presentadas en cortes transversales a 1 y 2,5 mm del vértice apical, así como de las porciones 1/3, 1⁄2, 2/3 del largo radicular y en la unión amelocementaria. Se determinó el número de raíces, conductos y configuración de Vertucci, así como forma y medidas de diámetro mayor y menor a 1 mm del vértice apical. El 90 % de primeros molares superiores reportó la presencia de 3 raíces y el 10 % mostró 2. En tanto que el total de primeros molares inferiores (100 %) reportó 2 raíces. En general, en las raíces mesiales prevaleció el Tipo II de Vertucci mientras que en las distales y palatinas la Tipo I. En el corte a 1 mm del vértice apical la forma redonda fue la de mayor prevalencia en los conductos de primeros molares superiores (44,5 %), seguida de la irregular (34,1 %) y la oval (21,4 %); mientras que en los primeros molares inferiores la más prevalente fue la irregular (54, 5 %), seguida de la redonda (23,9 %) y oval (21,6 %). Los diámetros mayor y menor de los conductos mesiales a 1 mm apical midieron 0,46 y 0,23 mm y 0,64 y 0,25 mm en molares superiores e inferiores respectivamente. La frecuencia de MB2 en primeros molares superiores fue del 77,8 %. Los conductos con mayor variabilidad fueron los mesiales. Se observó baja frecuencia de conductos ovales. Los diámetros mayores de los conductos mesiales en general, fueron superiores a 0,45 mm.

Accurate knowledge of dental root morphology is a key to success in endodontic therapies. The aim of this study was to evaluate the different variations of the root and apical morphology in upper and lower first molars of a modern Mayan population. Photomicrographs were taken from 80 upper and lower first molars, presented in cross sections at 1 and 2.5 mm from the apical vertex, as well as from the 1/3, 1⁄2, 2/3 portions of the root length and at the cementoenamel junction. The number of roots, canal and Vertucci`s configuration was determined, as well as the shape and measurements of the major and minor diameters at 1 mm from the apex. In this study 90 % of upper first molars reported the presence of 3 roots and 10 % showed 2, while the total lower first molars (100 %) reported 2 roots. In general, Vertucci`s Type II prevailed in the mesial roots while Type I was prevalent in the distal and palatal ones. In the 1 mm cut of the apical vertex, the round shape was the most prevalent in the canal of the first upper molars (44.5 %), followed by irregular (34.1 %) and oval (21.4 %); while in the first lower molars the most prevalent one was irregular (54.5 %), followed by round (23.9 %) and oval (21.6 %). The major and minor diameters of the mesial canals at 1 mm apical recorded 0.46 and 0.23 mm and 0.64 and 0.25 mm in upper and lower molars respectively. The frequency of MB2 in upper first molars was 77.8 %. The canals with greater variability were the mesial ones. Low frequency of oval canals was observed. The largest diameters of the mesial canal in general were greater than 0.45 mm.
Descritores: Raiz Dentária/anatomia & histologia
Índios Norte-Americanos
Dente Molar/anatomia & histologia
-Ápice Dentário/anatomia & histologia
Limites: Seres Humanos
Masculino
Feminino
Adolescente
Adulto
Meia-Idade
Idoso
Idoso de 80 Anos ou mais
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-889497
Autor: Brandini, Daniela Atili; Amaral, Marina Fuzette; Debortoli, Caio Vinícius Lourenço; Panzarini, Sônia Regina.
Título: Immediate tooth replantation: root canal filling for delayed initiation of endodontic treatment
Fonte: Braz. oral res. (Online);32:e7, 2018. tab, graf.
Idioma: en.
Projeto: Brazil's National Counsel for Technological and Scientific Development - CNPq.
Resumo: Abstract The aim of this study is to evaluate the action of paramonochlorophenol associated with Furacin followed by calcium hydroxide (CH) dressing in the control of inflammatory root resorption in cases of immediate tooth replantation with delayed endodontic treatment. A total of 28 incisors of 3 male dogs were extracted and replanted after 15 minutes, and randomly divided into 3 groups: Group I (n = 8) - endodontic treatment was performed before the extraction and replantation; Group II (n = 10) - endodontic treatment was performed 30 days after replantation and the root canal was filled with CH dressing; Group III (n = 10) - endodontic treatment was performed 30 days after replantation and root canals received temporary medication of paramonochlorophenol-Furacin followed by CH dressing. The animals were euthanized 90 days after replantation. The histomorphological events analyzed at the epithelial reattachment site were the intensity and extent of acute and chronic inflammatory processes, periodontal ligament (PDL) organization, the intensity and extent of acute and chronic inflammatory processes in the PDL space, root resorption, bone tissue, and ankylosis. Data were submitted to the Wilcoxon Signed Ranks Test for group comparison (α = 5%). In Groups I, II and III the periodontal ligament was regenerated and most of the resorption areas were repaired by newly formed cementum. The depth and extent of root resorption were significantly higher in Group II than in Group III. The use of paramonochlorophenol-furacin followed by CH dressing was more effective in controlling inflammatory root resorption after immediate tooth replantation.
Descritores: Reabsorção da Raiz/prevenção & controle
Reimplante Dentário/métodos
Clorofenóis/farmacologia
Dente não Vital/tratamento farmacológico
Anti-Infecciosos Locais/farmacologia
Nitrofurazona/farmacologia
-Ligamento Periodontal/efeitos dos fármacos
Ligamento Periodontal/patologia
Materiais Restauradores do Canal Radicular/farmacologia
Tratamento do Canal Radicular/métodos
Reabsorção da Raiz/patologia
Fatores de Tempo
Raiz Dentária/efeitos dos fármacos
Raiz Dentária/patologia
Hidróxido de Cálcio/farmacologia
Distribuição Aleatória
Reprodutibilidade dos Testes
Resultado do Tratamento
Dente não Vital/patologia
Ilustração Médica
Limites: Animais
Masculino
Cães
Tipo de Publ: Estudos de Avaliação
Responsável: BR1.1 - BIREME


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Id: biblio-841175
Autor: KOBAYASHI-VELASCO, Solange; SALINEIRO, Fernanda Cristina Sales; GIALAIN, Ivan Onone; CAVALCANTI, Marcelo Gusmão Paraiso.
Título: Diagnosis of alveolar and root fractures: an in vitro study comparing CBCT imaging with periapical radiographs
Fonte: J. appl. oral sci;25(2):227-233, Mar.-Apr. 2017. tab, graf.
Idioma: en.
Projeto: National Council for Scientific and Technological Development; . National Council for Scientific and Technological Development; . National Council for Scientific and Technological Development.
Resumo: Abstract Objective To compare periapical radiograph (PR) and cone-beam computed tomography (CBCT) in the diagnosis of alveolar and root fractures. Material and Methods Sixty incisor teeth (20 higid and 40 with root fracture) from dogs were inserted in 60 anterior alveolar sockets (40 higid and 20 with alveolar fracture) of 15 macerated canine maxillae. Each fractured socket had a root fractured tooth inserted in it. Afterwards, each maxilla was submitted to PR in two different vertical angulation incidences, and to CBCT imaging with a small field of view (FOV) and high-definition protocol. Images were randomized and posteriorly analyzed by two oral and maxillofacial radiologists two times, with a two-week interval between observations. Results Sensitivity and specificity values were good for root fractures for PR and CBCT. For alveolar fractures, sensitivity ranged from 0.10 to 0.90 for PR and from 0.50 to 0.65 for CBCT. Specificity for alveolar fractures showed lower results than for root fractures for PR and CBCT. Areas under the ROC curve showed good results for both PR and CBCT for root fractures. However, results were fair for both PR and CBCT for alveolar fractures. When submitted to repeated measures ANOVA tests, there was a statistically significant difference between PR and CBCT for root fractures. Root fracture intraobserver agreement ranged from 0.90 to 0.93, and alveolar fracture intraobserver agreement ranged from 0.30 to 0.57. Interobserver agreement results were substantial for root fractures and poor/fair for alveolar fractures (0.11 for PR and 0.30 for CBCT). Conclusion Periapical radiograph with two different vertical angulations may be considered an accurate method to detect root fractures. However, PR showed poorer results than CBCT for the diagnosis of alveolar fractures. When no fractures are diagnosed in PR and the patient describes pain symptoms, the subsequent exam of choice is CBCT.
Descritores: Fraturas dos Dentes/diagnóstico por imagem
Raiz Dentária/lesões
Radiografia Dentária Digital/métodos
Alvéolo Dental/lesões
Tomografia Computadorizada de Feixe Cônico/métodos
-Valores de Referência
Raiz Dentária/diagnóstico por imagem
Distribuição Aleatória
Variações Dependentes do Observador
Reprodutibilidade dos Testes
Sensibilidade e Especificidade
Alvéolo Dental/diagnóstico por imagem
Incisivo/lesões
Incisivo/diagnóstico por imagem
Limites: Animais
Cães
Tipo de Publ: Estudo Comparativo
Responsável: BR1.1 - BIREME


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Costa, Carlos Alberto de Souza
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Id: biblio-839141
Autor: Teixeira, Ligia; Basso, Fernanda Gonçalves; Hebling, Josimeri; Costa, Carlos Alberto de Souza; Mori, Graziela Garrido; Silva-Sousa, Yara Teresinha Corrêa; Oliveira, Camila Fávero de.
Título: Cytotoxicity Evaluation of Root Canal Sealers Using an In Vitro Experimental Model with Roots
Fonte: Braz. dent. j;28(2):165-171, mar.-Apr. 2017. tab, graf.
Idioma: en.
Projeto: (CAPES.
Resumo: Abstract The aim of the present study was to evaluate the cytotoxicity of root canal sealers under conditions closely resembling a clinical reality. A primary human fibroblast cell line was seeded in 24-well acrylic plates with Dulbecco’s modified Eagle’s medium supplemented with 10% serum fetal bovine (SFB) and incubated for 24 h. Root canals from premolars were filled and individually attached to nylon devices to be stabilized in the wells with the already seeded cells. Specimens were divided into groups as follows: Control: gutta-percha cones (GPC); AH Plus+GPC; Sealapex+GPC; MTA Fillapex+GPC and Endofill+GPC. After 24 and 48 h, cell viability and morphology were evaluated by MTT assay and scanning electron microscopy (SEM), respectively. Statistical analysis was performed by Mann-Whitney test, complemented by Kruskal Wallis test (p<0.05). Only Endofill presented cytotoxicity after 24 h. MTA Fillapex and Endofill reduced the production of succinic desidrogenase after 48 h. AH Plus was non-toxic at any time point. SEM showed that the AH Plus and MTA Fillapex groups presented fibroblasts with morphology close to the control group, while the Endofill group presented few cells with thin extensions cells. The present study showed that good results were present in AH Plus and Sealapex, but not the Endofill group after 48 h. The method used enabled evaluation of the cytotoxicity of the studied sealers that diffused through the root apex.

Resumo O objetivo do presente estudo foi avaliar a citotoxicidade dos cimentos dos canais radiculares em condições próximas à realidade clinica. Uma linhagem primária de fibrolastos humanos foi semeada em placas acrílicas de 24-poços com meio de cultura Dulbecco’s modified Eagle’s medium suplementado com 10% de soro fetal bovino e incubados por 24 h. Os canais radiculares de pré-molares foram obturados e individualmente adaptados aos dispositivos de nylon para serem estabilizados nos poços com as células já semeadas. Amostras foram dividas de acordo com os grupos: Controle: cones de gutta-percha (CGP); AH Plus+CGP; Sealapex+CGP; MTA Fillapex+CGP e Endofill+CGP. Após 24 e 48 h, a viabilidade e a morfologia celular foram avaliadas pelo ensaio de MTT e microscopia eletrônica de varredura (MEV), respectivamente. Análises estatísticas foram realizadas pelo teste de Mann-Whitney, complementadas por Kruskal Wallis (p<0,05). Apenas o Endofill apresentou citotoxicidade após 24 h. MTA Fillapex e Endofill reduziram a produção da enzima desidrogenase succinica após 48 h. AH Plus não apresentou toxicidade em nenhum momento. MEV mostrou que os grupos AH Plus e o MTA Fillapex apresentaram fibroblastos com morfologia próxima ao grupo controle, enquanto que o grupo do Endofill apresentou poucas células com finos prolongamentos. O presente estudo demonstrou que resultados satisfatórios foram apresentados nos grupos AH Plus e Sealapex, mas não para o Endofill após 48 h. O método utilizado permitiu avaliar a citotoxicidade dos cimentos que se difundem pelo ápice radicular.
Descritores: Materiais Restauradores do Canal Radicular/toxicidade
Raiz Dentária/efeitos dos fármacos
Modelos Biológicos
-Técnicas In Vitro
Microscopia Eletrônica de Varredura
Linhagem Celular
Meios de Cultura
Limites: Seres Humanos
Responsável: BR1.1 - BIREME



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