Base de dados : LILACS
Pesquisa : E06.186.501 [Categoria DeCS]
Referências encontradas : 843 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 85 ir para página                         

  1 / 843 LILACS  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Chile
Texto completo
Id: biblio-975735
Autor: Paris, Leslie; Figueroa, Daniela; Alcántara, Raúl; Lagos, Germán; Muñoz, Francisca.
Título: Percepción Intraoperatoria del Paciente sobre la Preparación de la Cavidad de Acceso Endodóntico / Patient Intraoperatory Perception About Endodontic Access Cavity Preparation
Fonte: Int. j. odontostomatol. (Print);12(3):211-218, Sept. 2018. tab, graf.
Idioma: es.
Resumo: RESUMEN: La creencia de que el tratamiento de endodoncia es el tratamiento dental más doloroso es algo habitual. A pesar de ello, la percepción intraoperatoria durante el tratamiento de endodoncia ha sido poco estudiada. Por ello, el objetivo de esta investigación fue describir la percepción de dolor y la experiencia intraoperatoria del paciente tratado en endodoncia, durante la etapa de acceso endodóntico. Se analizaron las valoraciones sobre dolor intraoperatorio realizadas por 20 pacientes, tratados en la clínica de especialidad de una universidad tradicional chilena, durante la etapa de acceso endodóntico en molares. Para ello se utilizaron escalas cuantitativas de valoración de la intensidad del dolor y el análisis de contenido cualitativo de una entrevista semi-estructurada. Se observó que los participantes de sexo femenino, los tratamientos en molares mandibulares y en dientes con diagnóstico de pulpitis irreversible sintomática obtuvieron medias mayores en cuanto a la valoración de la intensidad del dolor. Sin embargo, en la mayoría de los casos el dolor fue descrito como leve. En el análisis cualitativo lo descrito por los participantes se agrupó en 10 categorías. Se observó un mayor porcentaje de referencias a la categoría "Ansiedad ante el tratamiento" (16 %) seguido de "Percepción de la atención profesional" (14 %). Sin embargo, también destacaron las referencias al dolor en su totalidad (25 %) ya sea a "Ausencia de dolor" (13 %) o a "Presencia de dolor en algún grado" (12 %). Se concluyó que entre los participantes de esta investigación existió percepción de dolor intraoperatorio durante la etapa de acceso endodóntico, sin embargo, este fue de carácter leve en la mayoría de los casos.

ABSTRACT: There is a common belief that endodontic treatment is the most painful dental treatment of all. Despite this idea, intraoperative perception during endodontic treatment has not been fully studied. Therefore, the aim of this research was to describe the perception of pain and the intraoperative experience of endodontic treated patients, during the endodontic access cavity preparation. We analyzed the valuations on intraoperative pain completed by 20 patients, treated at the endodontic clinic of a traditional Chilean university, during the endodontic access cavity preparation in molars. For this purpose, quantitative scales of pain intensity assessment and qualitative content analysis of a semi-structured interview were employed. Female participants, treatments in mandibular molars and in teeth diagnosed with symptomatic irreversible pulpitis obtained higher means in terms of assessment of pain intensity. However, in most cases the pain was described as mild. In the qualitative analysis the participant's descriptions were grouped into 11 categories. There was a higher percentage of references to the category "Anxiety before treatment" (16 %) followed by "Perception of professional care" (14 %). However, references to pain in its totality (25 %) either to "Absence of pain" (13 %) or to "Presence of pain to some degree" (12 %) also stood out. It was concluded that among the participants of this investigation there was perception of intraoperative pain during the endodontic access stage, however, this was mild in most cases.
Descritores: Raiz Dentária/anatomia & histologia
Preparo de Canal Radicular/métodos
-Dor
Chile
Epidemiologia Descritiva
Inquéritos e Questionários
Preparo de Canal Radicular/instrumentação
Instrumentos Odontológicos
Percepção da Dor
Consentimento Livre e Esclarecido
Limites: Humanos
Masculino
Feminino
Adolescente
Adulto
Pessoa de Meia-Idade
Idoso
Responsável: CL1.1 - Biblioteca Central


  2 / 843 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-951956
Autor: Cruz Gonzalez, Alberto Carlos; Marín Zuluaga, Dairo Javier.
Título: Clinical outcome of root caries restorations using ART and rotary techniques in institutionalized elders
Fonte: Braz. oral res. (Online);30(1):e63, 2016. tab.
Idioma: en.
Resumo: Abstract The aim of this study was to compare the clinical performance of root caries restorations after a six-month period using two methods, a conventional technique with rotary instruments and an atraumatic restorative technique (ART), in an institutionalized elderly population in the city of Bogotá, Colombia. Root caries represents a multifactorial, progressive, chronic lesion with softened, irregular and darkened tissue involving the radicular surface; it is highly prevalent in the elderly, especially in those who are physically or cognitively impaired. A quasi-experimental, double-blind, longitudinal study was carried out after cluster randomization of the sample. Two different experienced dentists, previously trained, performed the restorations using each technique. After six months, two new investigators performed a blind evaluation of the condition of the restorations. The results showed a significantly higher rate of success (92.9%) using the conventional technique (p < 0.03). However, we concluded that ART may have been the preferred technique in the study population because 81% of those restorations survived or were successful during the observation period.
Descritores: Cárie Radicular/terapia
Instrumentos Odontológicos
Restauração Dentária Permanente/instrumentação
Tratamento Dentário Restaurador sem Trauma/métodos
-Método Duplo-Cego
Estudos Longitudinais
Assistência Odontológica para Idosos
Resultado do Tratamento
Falha de Restauração Dentária
Restauração Dentária Permanente/métodos
Cimentos de Ionômeros de Vidro/uso terapêutico
Pessoa de Meia-Idade
Casas de Saúde
Limites: Humanos
Masculino
Feminino
Idoso
Idoso de 80 Anos ou mais
Tipo de Publ: Estudo Comparativo
Ensaio Clínico Controlado Aleatório
Responsável: BR1.1 - BIREME


  3 / 843 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-952006
Autor: Silva, Emmanuel João Nogueira Leal; Vieira, Vania Cristina Gomes; Tameirão, Michele Dias Nunes; Belladonna, Felipe Gonçalves; Neves, Aline de Almeida; Souza, Erick Miranda; De-Deus, Gustavo.
Título: Quantitative transportation assessment in curved canals prepared with an off-centered rectangular design system
Fonte: Braz. oral res. (Online);30(1):e43, 2016. tab, graf.
Idioma: en.
Projeto: Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro; . Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro; . Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro.
Resumo: Abstract The purpose of this study was to assess the ability of an off-centered rectangular design system [ProTaper Next (PTN)] to maintain the original profile of the root canal anatomy. To this end, ProTaper Universal (PTU), Reciproc (R) and WaveOne (WO) systems were used as reference techniques for comparison. Forty clear resin blocks with simulated curved root canals were randomly assigned to 4 groups (n = 10) according to the instrumentation system used: PTN, PTU, R and WO. Color stereomicroscopic images of each block were taken before and after instrumentation. All image processing and data analysis were performed with an open source program (Fiji v.1.47n). Evaluation of canal transportation was obtained for two independent regions: straight and curved portions. Univariate analysis of variance and Tukey's Honestly Significant Difference test were performed, and a cut-off for significance was set at α = 5%. Instrumentation systems significantly influenced canal transportation (p = 0.000). Overall, R induced significantly lower canal transportation compared with WO, PTN and PTU (p = 0.000). The curved portion displayed superior canal transportation compared to the straight one (p = 0.000). The significance of the difference among instrumentation systems varied according to the canal level evaluated (p = 0.000). In its straight portion, R and WO exhibited significantly lower transportation than PTN; whereas in the curved portion, R produced the lowest deviation. PTU exhibited the highest canal transportation at both levels. It can be concluded that PTN produced less canal transportation than PTU and WO; however, R exhibited better centering ability than PTN.
Descritores: Preparo de Canal Radicular/instrumentação
Instrumentos Odontológicos
Cavidade Pulpar/anatomia & histologia
-Titânio/química
Processamento de Imagem Assistida por Computador
Teste de Materiais
Reprodutibilidade dos Testes
Análise de Variância
Preparo de Canal Radicular/métodos
Desenho de Equipamento
Modelos Anatômicos
Níquel/química
Tipo de Publ: Estudo de Avaliação
Responsável: BR1.1 - BIREME


  4 / 843 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-952046
Autor: Jardine, Alexander Pompermayer; Rosa, Ricardo Abreu da; Santini, Manuela Favarin; Zaccara, Ivana Maria; Só, Marcus Vinicius Reis; Kopper, Patrícia Maria Poli.
Título: Shaping ability of rotatory or reciprocating instruments in curved canals: a micro-computed tomographic study
Fonte: Braz. oral res. (Online);30(1):e86, 2016. tab, graf.
Idioma: en.
Resumo: Abstract This study aimed to compare apical transportation, centering ratio, and working time during root canal preparation with Wizard Navigator (WN), WaveOne (WO), or ProTaper Universal (PT) and to describe deformation and fracture of these instruments. Thirty-six mesiobuccal roots from maxillary molars were micro-computed tomography (micro-CT) scanned and then sorted into three groups (n = 12): Wizard Navigator (WN), WaveOne (WO), and ProTaper Universal (PT). The root canals were prepared using WN, WO, or PT; the time of each canal preparation was timed; and the specimens were micro-CT re-scanned. The instruments were submitted to scanning electron microscopy (SEM) before and after their use. The data on canal transportation at 1, 2, 3, 4 and 5 mm and preparation time were analyzed by the Kruskal-Wallis test, followed by the Mann-Whitney U test. The centering ratio was analyzed by ANOVA, followed by Tukey's test. Both instrument deformation and fracture were described. Apical transportation was similar among groups at 1, 2, 3 and 4 mm. The WO group showed higher canal transportation at 5mm than the other groups (p = 0.03). There was no significant difference in centering ratio among the groups. Preparation time in the WO group was significantly lower than in the other groups (p = 0.004). Small differences were observed in the surface area of all instruments. The WN, WO, and PT groups had a similar centering ratio without procedural errors or significant structural changes. At 5 mm from the apex, the WO group showed the largest canal transportation toward the furcation and root canal preparation was faster than in the WN and PT groups.
Descritores: Preparo de Canal Radicular/instrumentação
Instrumentos Odontológicos
Cavidade Pulpar/anatomia & histologia
-Fatores de Tempo
Titânio/química
Microscopia Eletrônica de Varredura
Reprodutibilidade dos Testes
Análise de Variância
Estatísticas não Paramétricas
Preparo de Canal Radicular/métodos
Cavidade Pulpar/diagnóstico por imagem
Desenho de Equipamento
Microtomografia por Raio-X
Dente Molar/anatomia & histologia
Níquel/química
Limites: Humanos
Responsável: BR1.1 - BIREME


  5 / 843 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-974468
Autor: Department of Restorative DentistrySousa-Neto, Manoel Damião de; Silva-Sousa, Yara Correa; Mazzi-Chaves, Jardel Francisco; Department of Restorative DentistryCarvalho, Kleber Kildare Teodoro; Barbosa, Ana Flávia Simões; Department of Restorative DentistryVersiani, Marco Aurélio; Jacobs, Reinhilde; Leoni, Graziela Bianchi.
Título: Root canal preparation using micro-computed tomography analysis: a literature review
Fonte: Braz. oral res. (Online);32(supl.1):e66, 2018. tab, graf.
Idioma: en.
Resumo: Abstract: This literature review has critically analyzed the published research related to the biomechanical preparation of root canals with three-dimensional analysis using micro-computed tomography (micro-CT). In December 2017, six databases (PubMed, Cochrane, Web of Science, Embase, Scopus, and Science Direct) were accessed using keywords to find articles including the use of the micro-CT analysis in biomechanical root canal preparation. There were 60 full articles that were selected, which were screened and read by two authors. The research that was reviewed and analyzed included root canal anatomy and sample selection, changes in canal shape and untouched canal areas, canal transportation and centering ability, and kinematics (motion). Of the studies selected, 49.18% discussed anatomical characteristics, with 54.1% of these studies describing mesial roots of mandibular molars with moderate curvature. Only 35% used a stratified distribution based on root canal system morphology and quantitative data obtained by micro-CT. The analysis of canal transportation and centering ability showed that transport values in the apical third exceeded the critical limit of 0.3 mm in mesial roots of mandibular molars with moderate curvature, especially in the groups in which a reciprocating system was used. In relation to kinematics, 91.70% of the reviewed studies evaluated continuous rotating instruments, followed by reciprocating rotation (38.33%), vibratory (15%), and the adaptive kinematics, which was in only 8.33%. The reciprocating kinematics was associated with higher canal decentralization and transportation indexes, as well as a greater capacity for dentin removal and debris accumulation. This literature review showed that the anatomy, the type of design and kinematics of instruments, and the experimental design are factors that directly influence the quality of biomechanical preparation of root canals analyzed in a qualitative and quantitative manner by micro-CT.
Descritores: Preparo de Canal Radicular/métodos
Cavidade Pulpar/anatomia & histologia
Cavidade Pulpar/diagnóstico por imagem
Microtomografia por Raio-X/métodos
-Preparo de Canal Radicular/instrumentação
Imageamento Tridimensional
Instrumentos Odontológicos
Desenho de Equipamento
Ligas
Mandíbula
Dente Molar
Limites: Humanos
Tipo de Publ: Revisão
Responsável: BR1.1 - BIREME


  6 / 843 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-974471
Autor: Discipline of EndodonticsGavini, Giulio; Discipline of EndodonticsSantos, Marcelo dos; Discipline of EndodonticsCaldeira, Celso Luis; Discipline of EndodonticsMachado, Manoel Eduardo de Lima; Discipline of EndodonticsFreire, Laila Gonzales; Discipline of EndodonticsIglecias, Elaine Faga; Department of EndodonticsPeters, Ove Andrea; Post graduation Program in Dental SciencesCandeiro, George Táccio de Miranda.
Título: Nickel-titanium instruments in endodontics: a concise review of the state of the art
Fonte: Braz. oral res. (Online);32(supl.1):e67, 2018. tab, graf.
Idioma: en.
Resumo: Abstract: The introduction of automated instrumentation in endodontics represented a major advance in progress for this specialty, with improvements in the quality and predictability of root canal preparation and a significant reduction in procedural errors. In recent years, endodontic instruments have undergone a series of changes brought about by modifications in design, surface treatments, and thermal treatments. In addition, new movements have also been incorporated to offer greater safety and efficiency, optimizing the properties of the NiTi alloy, especially through eccentric rotary motion. An understanding of the mechanical properties of these new NiTi instruments and their effect on the clinical performance of root canal preparation is essential if dental practitioners are to select the instruments that provide optimal clinical outcomes, especially in curved or flattened canals. The objective of this literature review is to present and discuss the characteristics of the NiTi alloys used in the major instrumentation systems available in the market, as well as the influence of the metallurgical and mechanical properties of NiTi instruments and the movements that drive them, to enable more accurate and predictable planning of root canal preparation.
Descritores: Preparo de Canal Radicular/instrumentação
Desenho de Equipamento
Ligas/química
-Propriedades de Superfície
Preparo de Canal Radicular/métodos
Ligas Dentárias/química
Instrumentos Odontológicos
Limites: Humanos
Tipo de Publ: Revisão
Responsável: BR1.1 - BIREME


  7 / 843 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-974475
Autor: Department of EndodonticsSiqueira Junior, José Freitas; Department of EndodonticsRôças, Isabela das Neves; Department of EndodonticsMarceliano-Alves, Marília Fagury; Department of EndodonticsPérez, Alejandro Ron; Ricucci, Domenico.
Título: Unprepared root canal surface areas: causes, clinical implications, and therapeutic strategies
Fonte: Braz. oral res. (Online);32(supl.1):e65, 2018. tab, graf.
Idioma: en.
Resumo: Abstract: Chemomechanical preparation is intended to clean, disinfect, and shape the root canal. This step is of utmost importance during treatment of infected teeth with apical periodontitis, because treatment outcome depends on how effectively the clinician eliminates bacteria, their products, and necrotic tissue that would serve as substrate for bacterial regrowth. Nonetheless, curvatures and complex internal anatomical variations of the root canal system can pose a high degree of difficulty in reaching these goals. In infected teeth, bacteria may persist not only in difficult-to-reach areas such as isthmuses, ramifications, dentinal tubules, and recesses from C-shaped or oval/flattened canals, but also in areas of the main canal wall that remain untouched by instruments. If bacteria withstand chemomechanical procedures, there is an augmented risk for post-treatment apical periodontitis. This article discloses the reasons why some areas remain unprepared by instruments and discusses strategies to circumvent this issue and enhance infection control during endodontic treatment/retreatment of teeth with apical periodontitis.
Descritores: Preparo de Canal Radicular/métodos
Cavidade Pulpar/microbiologia
-Periodontite Periapical/terapia
Irrigantes do Canal Radicular/uso terapêutico
Resultado do Tratamento
Preparo de Canal Radicular/instrumentação
Instrumentos Odontológicos
Cavidade Pulpar/anatomia & histologia
Cavidade Pulpar/diagnóstico por imagem
Microtomografia por Raio-X/métodos
Limites: Humanos
Tipo de Publ: Revisão
Responsável: BR1.1 - BIREME


  8 / 843 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-952136
Autor: Castro, Roberta Fonseca de; Melo, Juliana do Socorro Soares; Dias Junior, Luiz Carlos de Lima; Silva, Emmanuel João Nogueira Leal; Brandão, Juliana Melo da Silva.
Título: Evaluation of the efficacy of filling material removal and re-filling after different retreatment procedures
Fonte: Braz. oral res. (Online);32:e94, 2018. tab, graf.
Idioma: en.
Resumo: Abstract This study analyzed the influence of different retreatment protocols on amount of remaining filling material and amount of new sealer after endodontic retreatment. Forty mandibular molars with curved mesial roots were prepared with ProTaper Universal system, and filled with AH Plus sealer mixed with 0.1% rhodamine B and gutta-percha. After 7 days, the specimens were randomized according to the retreatment protocol (n = 10): ProTaper Retreatment System (PTR); PTR+Orange Oil (PTR+OO); PTR+Passive Ultrasonic Irrigation (PTR+PUI). No retreatment was performed in the control group (CG). After retreatment, the root canals were filled with AH Plus mixed with 0.1% fluorescein and gutta-percha. Samples were evaluated under confocal laser scanning microscopy and analyzed using Image J software. Data were analyzed using Kruskal-Wallis and Dunn tests (p < 0.05). Regarding presence of residual filling, the Kruskal-Wallis test indicated no differences among the different retreatment techniques in the perimeter and the isthmus analyses (p > 0.05); however, PTR+PUI was associated with a lesser amount of residual filling material in the canal area analysis (p < 0.05). In evaluating the new filling, the perimeter analysis showed a lesser amount of new endodontic sealer in the PTR group (p < 0.05). Moreover, the PTR+PUI group presented a significantly greater amount of new endodontic sealer in the canal area analysis (p < 0.05). There was no difference among groups in the isthmus analysis (p > 0.05). It can be concluded that PTR associated to PUI yielded better results in removing root canal filling material from the canal area. However, none of the protocols resulted in root walls completely free of remnants.
Descritores: Materiais Restauradores do Canal Radicular/uso terapêutico
Materiais Restauradores do Canal Radicular/química
Tratamento do Canal Radicular/métodos
-Tratamento do Canal Radicular/instrumentação
Reprodutibilidade dos Testes
Resultado do Tratamento
Estatísticas não Paramétricas
Microscopia Confocal
Retratamento/métodos
Instrumentos Odontológicos
Cavidade Pulpar/efeitos dos fármacos
Cavidade Pulpar/química
Limites: Humanos
Tipo de Publ: Estudo de Avaliação
Responsável: BR1.1 - BIREME


  9 / 843 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-952167
Autor: Rivera-Peña, Melissa Esther; Duarte, Marco Antônio Húngaro; Alcalde, Murilo Priori; De Andrade, Flaviana Bombarda; Vivan, Rodrigo Ricci.
Título: A novel ultrasonic tip for removal of filling material in flattened/oval-shaped root canals: a microCT study
Fonte: Braz. oral res. (Online);32:e88, 2018. tab, graf.
Idioma: en.
Resumo: Abstract The aim of this study was to evaluate the influence of a novel ultrasonic tip as an auxiliary method for removing filling material from flattened/oval-shaped canals. The null hypothesis tested was that this method does not influence removing the filling material in flattened/oval-shaped canals. Forty-five mandibular incisors were selected and randomly divided into three experimental groups (n = 15) according to different protocols for removing root canal filling material. Group R: Reciproc R25/.08, Group RC: Reciproc R25/.08 + Clearsonic tip, and Group CR: Clearsonic tip + Reciproc R25/.08. The teeth were scanned pre and post-operatively by means of a micro-computed tomography system. Data were analyzed using non-parametric Kruskal-Wallis and Dunn tests (p < 0.05). The percentage of residual root canal filling material between the experimental groups was examined. Statistically significant differences between the experimental groups were found in the root canal. Group R had the highest percentage of residual root canal filling material when compared with Groups RC and CR. The lowest percentage of residual root canal filling material was observed in Group CR. In the apical third of the root canal, statistically significant differences were found between the different protocols. The use of the ClearSonic tip followed by the Reciproc 25/.08 file to remove filling material resulted in the lowest percentage of residuals in the whole root canal and in the apical third.
Descritores: Materiais Restauradores do Canal Radicular
Ultrassom/instrumentação
Preparo de Canal Radicular/instrumentação
Instrumentos Odontológicos
Cavidade Pulpar/anatomia & histologia
-Valores de Referência
Ultrassom/métodos
Teste de Materiais
Reprodutibilidade dos Testes
Análise de Variância
Estatísticas não Paramétricas
Preparo de Canal Radicular/métodos
Retratamento
Desenho de Equipamento
Microtomografia por Raio-X
Incisivo/anatomia & histologia
Limites: Humanos
Tipo de Publ: Estudo de Avaliação
Responsável: BR1.1 - BIREME


  10 / 843 LILACS  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-1001610
Autor: Endodontic DivisionMachado, Camila Ambrósio Dias; Endodontic DivisionSouza, Amanda Caselato Andolfatto; Endodontic DivisionLoureiro, Caroline; Martinho, Frederico Canato; Endodontic DivisionCintra, Luciano Tavares Ângelo; Endodontic DivisionDezan Junior, Eloi; Endodontic DivisionJacinto, Rogério de Castilho.
Título: Comparison of two rotary systems in bacteria/lps removal from endodontic infections: randomized clinical trial
Fonte: Braz. oral res. (Online);33:e039, 2019. tab, graf.
Idioma: en.
Projeto: Brazilian agencies Fapesp; . Edital Primeiros Projetos Unesp-Prope.
Resumo: Abstract: This clinical study compared the effectiveness of two rotary systems: HyFlex CM (Coltene-Whaledent, Altstetten, Switzerland) and ProTaper Next (Dentsply Sirona, Ballaigues, Switzerland) on the removal of cultivable bacteria and endotoxins from primarily infected root canals. This study was designed as a randomized single-blinded, 2-arm, clinical trial. Twenty-four primarily infected root canals were selected and randomly divided into 2 groups: HyFlex CM (n = 12); and ProTaper Next (n = 12). Samples were collected before and after the biomechanical preparation and inoculated in specific flasks. Irrigation was performed using 2.5% sodium hypochlorite. A kinetic turbidimetric lysate assay of limulus amoebocytes was used to quantify endotoxins. Microbiological culture technique was used to determine the count of bacterial colony forming units (CFU/mL). Data collected were statistically analyzed using SigmaPlot 12.0 for Windows. The Two-Way ANOVA statistical test was performed and the level of significance was 5%. In the samples before the biomechanical preparation, cultivable bacteria and endotoxins were evidenced in 100% of the cases. The culture analysis revealed that there was no statistically significant difference in the bacterial reduction between the two instrumentation systems. Endotoxins were present in 100% of the canals after instrumentation and there was no statistical difference between the two systems in endotoxin reduction. Thus, it was concluded that both instrumentation systems were effective in reducing root canal bacteria and endotoxins with primary endodontic infection and that there was no statistical difference between them. However, no system was able to eliminate 100% of the bacteria and their by-products.
Descritores: Bactérias/isolamento & purificação
Lipopolissacarídeos/análise
Instrumentos Odontológicos
Cavidade Pulpar/microbiologia
-Teste de Materiais
Técnicas Bacteriológicas
Resultado do Tratamento
Preparo de Canal Radicular/instrumentação
Endotoxinas/análise
Carga Bacteriana
Pessoa de Meia-Idade
Limites: Humanos
Masculino
Feminino
Adulto
Tipo de Publ: Estudo Comparativo
Ensaio Clínico Pragmático
Responsável: BR1.1 - BIREME



página 1 de 85 ir para página                         
   


Refinar a pesquisa
  Base de dados : Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde