Base de dados : LILACS
Pesquisa : C07.793.266 [Categoria DeCS]
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Id: biblio-975744
Autor: Donoso-Martínez, Francisco Antonio; Bizcar, Betty; Sandoval, Catalina; Sandoval-Vidal, Paulo.
Título: Aplicación del Láser de Baja Potencia (LLLT) en Pacientes Pediátricos: Revisión de Literatura a Propósito de una Serie de Casos / Application of Low Power Laser (LLLT) in Pediatric Patients: Review of the Literature in a Series of Cases
Fonte: Int. j. odontostomatol. (Print);12(3):269-273, Sept. 2018. graf.
Idioma: es.
Projeto: Conicyt.
Resumo: RESUMEN: El uso del láser de baja potencia en odontología está siendo cada vez más frecuente y con excelentes resultados, los equipos más modernos traen pre-establecidos la dosimetría de los parámetros para las diferentes acciones clínicas. El objetivo de esta revisión fue encontrar evidencia científica que permita al clínico tener como una alternativa de tratamiento el uso del láser de baja potencia en patologías orales de tejidos blandos y duros en pacientes pediátricos. Se realizó una revisión de la literatura por medio de buscadores como PubMed, LILACS y SciELO. Después de leer a texto completo todos los trabajos es posible señalar que el láser de baja frecuencia es una buena alternativa terapéutica en la resolución de signos y síntomas en patologías orales que aquejan al paciente pediátrico, puesto que, presenta un rápido control del dolor, la inflamación, el sangrado y acelera los procesos de reparación celular.

ABSTRACT: Low Level Laser Therapy in dentistry is becoming more frequent and has had excellent results, with state of the art equipment having pre-established dosimetry parameters for the various clinical actions. The objective of this review was to find scientific evidence that allows the clinician to have the use of low power laser as treatment alternative, in oral soft tissue and hard pathologies in pediatric patients. A review of the literature was performed through search engines such as PubMed, LILACS and SciELO. After reading the texts, it was possible to point out that low frequency laser is a good therapeutic alternative in the resolution of signs and symptoms in oral pathologies of the pediatric patient. This alternative allows for rapid pain control, reduces inflammation and bleeding, and accelerates cellular repair processes.
Descritores: Estomatite Aftosa/terapia
Úlceras Orais/terapia
Terapia com Luz de Baixa Intensidade/métodos
Sensibilidade da Dentina/radioterapia
Lasers Semicondutores/uso terapêutico
-Resultado do Tratamento
Odontopediatria/métodos
Terapia a Laser/métodos
Freio Labial/cirurgia
Limites: Humanos
Criança
Tipo de Publ: Relatos de Casos
Revisão
Responsável: CL1.1 - Biblioteca Central


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Texto completo SciELO Brasil
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Id: biblio-951996
Autor: Rosa, Raydsa Raíssa Moura; Calazans, Francielle Karoline Santos; Nogueira, Ruchele Dias; Lancellotti, Ailla Carla Rocha Acosta; Gonçalves, Luciano de Sousa; Geraldo-Martins, Vinícius Rangel.
Título: Effects of different desensitizing treatments on root dentin permeability
Fonte: Braz. oral res. (Online);30(1):e111, 2016. tab, graf.
Idioma: en.
Resumo: Abstract The objective of this study was to evaluate the effects of diode laser and a desensitizing dentifrice on dentin permeability. Fifty-two root dentin fragments were obtained (5 × 5mm) and treated with 24% EDTA gel. The samples were divided into 4 groups (n = 13): G1, control (no treatment); G2, diode laser (λ = 908 nm, 1.5 W, continuous mode, 20s); G3, application of abrasive dentifrice for 1 minute (Elmex Sensitive Professional (International Gaba); and G4, application of abrasive dentifrice for 1 minute followed by irradiation with diode laser. Ten samples per group were immersed in 2% methylene blue solution for 4h. The specimens were washed, longitudinally sectioned, observed under optical microscopy, photographed and assessed based on the degree of dye leakage. The remaining samples were observed under scanning electron microscopy (SEM). The leakage data were subjected to ANOVA test, followed by Tukey's t-test (α = 5%). Groups 2, 3 and 4 showed less dye penetration than the control group (p < 0.05), but were similar among each other. SEM images showed that dentinal tubules were open in G1, and fused and occluded in G2. Group 3 showed dentinal tubules that were occluded by the metal ions from the toothpaste. G4 presented similar characteristics to G3, and the presence of fused dentin. The diode laser and the dentifrice were effective in reducing dentinal permeability, and the combination of the two treatments did not show better results than either one used alone.
Descritores: Raiz Dentária/efeitos dos fármacos
Dentifrícios/química
Dentina/efeitos dos fármacos
Permeabilidade da Dentina/efeitos dos fármacos
Sensibilidade da Dentina/tratamento farmacológico
Dessensibilizantes Dentinários/química
-Propriedades de Superfície/efeitos dos fármacos
Propriedades de Superfície/efeitos da radiação
Fatores de Tempo
Raiz Dentária/efeitos da radiação
Microscopia Eletrônica de Varredura
Distribuição Aleatória
Reprodutibilidade dos Testes
Dentina/efeitos da radiação
Permeabilidade da Dentina/efeitos da radiação
Terapia a Laser/métodos
Lasers Semicondutores/uso terapêutico
Limites: Animais
Bovinos
Responsável: BR1.1 - BIREME


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Id: biblio-952033
Autor: Pintado-Palomino, Karen; Vasconcelos, Cecília Vilela Matias; Silva, Roberto Juns da; Fressatti, Andre Luiz de Macedo; Motta, Bianka Jurca Gonçalves da; Pires-DE-Souza, Fernanda de Carvalho Panzeri; Tirapelli, Camila.
Título: Effect of whitening dentifrices: a double-blind randomized controlled trial
Fonte: Braz. oral res. (Online);30(1):e82, 2016. tab, graf.
Idioma: en.
Resumo: Abstract The aim of this clinical study was to evaluate tooth color changes (ΔE) and tooth sensitivity (TS) associated with whitening dentifrices. Sixty participants were selected according to inclusion and exclusion criteria and then allocated to three groups (n = 20): Colgate Luminous White (G1), Close Up White Now (G2) and Sorriso dentifrice (G3-control). The participants were instructed to use only the provided dentifrice and toothbrush in standardized oral hygiene procedures for 4 weeks. ΔE was assessed by spectrophotometry (CIELab System) whereas TS was determined by a visual analog scale at baseline and weekly using four assessment points. The data were analyzed by two-way ANOVA and Tukey's post-hoc test and Friedman test (α = 0.05). ΔE (baseline-assessment point 4) showed no significant difference (p>0.05) across the groups: G1 (ΔE = 5.1), G2 (ΔE = 6.8), and G3 (ΔE = 4.4). Δb (baseline-assessment point 4) was significantly different (p < 0.05) in G2 (3.8) when compared to G1 (-0.2) and G3 (0.3). There was no significant difference (p > 0.05) in TS at baseline. Both the control and whitening dentifrices caused similar tooth color changes (ΔE). There was no significant TS during the study period.
Descritores: Clareamento Dental/métodos
Dentifrícios/farmacologia
Sensibilidade da Dentina/induzido quimicamente
Clareadores Dentários/farmacologia
-Espectrofotometria
Fatores de Tempo
Método Duplo-Cego
Análise de Variância
Resultado do Tratamento
Cor
Dentifrícios/efeitos adversos
Clareadores Dentários/efeitos adversos
Escala Visual Analógica
Limites: Humanos
Masculino
Feminino
Adulto
Tipo de Publ: Ensaio Clínico Controlado Aleatório
Responsável: BR1.1 - BIREME


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Id: biblio-989478
Autor: Onwubu, Stanley Chibuzor; Mdluli, Phumlane Selby; Singh, Shenuka; Tlapana, Tshepo.
Título: A novel application of nano eggshell/titanium dioxide composite on occluding dentine tubules: an in vitro study
Fonte: Braz. oral res. (Online);33:e016, 2019. tab, graf.
Idioma: en.
Projeto: National Research Foundation of South Africa.
Resumo: Abstract To synthesize Nano eggshell-titanium-dioxide (EB@TiO2) biocomposite and to evaluate its effectiveness in occluding opened dentine tubules. EB@TiO2 was synthesized and characterized using X-ray diffraction (XRD), and Transmission Electron Microscope (TEM). Sixteen simulated bovine dentine discs were prepared and randomly assigned into four groups according to the following treatment (n = 4): Group 1: No treatment; Group 2: eggshell powder; Group 3: EB@TiO2; Group 4: Sensodyne. These were then agitated in a solution of 1g powder and 40mL water for 3hours. Thereafter, each dentine discs from the respective groups were post-treated for 5 min with 2wt% citric acid to test their acid resistant characteristics. Scanning Electron Microscope (SEM) was used to observe the effectiveness of occluded dentine pre-and post-treatment. The cytotoxicity of the synthesized EB@TiO2 was tested using NIH 3T3 assay. ANOVA was used to evaluate the mean values of the occluded area ratio and the data of MTS assay. This was followed by a multi-comparison test with Bonferroni correction (α = .05). The XRD confirmed that EB@TiO2 was successfully modified through ball-milling. The TEM revealed the presence of both spherical and irregular particle shape powders. The SEM result showed that EB@TiO2 could effectively occlude open dentine tubules. Equally, the result demonstrated that EB@TiO2 exhibited the highest acid resistant stability post-treatment. NIH 3T3 assay identified that EB@TiO2 had little effect on the NIH 3T3 cell line even at the highest concentration of 100µg/ml. This study suggests that the application of EB@TiO2 effectively occluded dentine tubules and the occlusion showed a high acid resistant stability.
Descritores: Fosfatos/farmacologia
Titânio/química
Permeabilidade da Dentina/efeitos dos fármacos
Sensibilidade da Dentina/terapia
Casca de Ovo/química
Nanocompostos/química
Dessensibilizantes Dentinários/farmacologia
Fluoretos/farmacologia
Nitratos/farmacologia
-Titânio/análise
Titânio/farmacologia
Remineralização Dentária
Microscopia Eletrônica de Varredura
Células NIH 3T3
Combinação de Medicamentos
Casca de Ovo/ultraestrutura
Nanocompostos/análise
Nanocompostos/uso terapêutico
Limites: Animais
Bovinos
Camundongos
Responsável: BR1.1 - BIREME


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Id: biblio-1039299
Autor: Tardem, Chane; Albuquerque, Elisa Gomes; Lopes, Letícia de Souza; Marins, Stella Soares; Calazans, Fernanda Signorelli; Poubel, Luiz Augusto; Barcelos, Roberta; Barceleiro, Marcos de Oliveira.
Título: Clinical time and postoperative sensitivity after use of bulk-fill (syringe and capsule) vs. incremental filling composites: a randomized clinical trial
Fonte: Braz. oral res. (Online);33:e089, 2019. tab, graf.
Idioma: en.
Projeto: National Council for Scientific and Technological Development.
Resumo: Abstract The objectives of this double-blind randomized clinical trial were to compare (a) the clinical times and (b) the occurrence and severity of postoperative sensitivity, of posterior restoration that used a universal adhesive, in a self-etch or selective enamel-etching technique, along with incremental or bulk-fill composites (presented in syringes or capsules). A total of 295 posterior restorations were placed according to the following groups: SETB - self-etch/bulk-fill in syringe; SETC - self-etch/bulk-fill in capsules; SETI - self-etch/incremental; SEEB - selective enamel-etching/bulk-fill in syringe; SEEC - selective enamel-etching/bulk-fill in capsules; and SEEI - selective enamel-etching/incremental. Clinical time was assessed by a reason (s/mm3) between the total volume of resin inserted and the total time required to perform the restorations. Postoperative sensitivity was evaluated using two scales (Numeric Rating Scale and Visual Analogue Scale). Mean clinical time results, analyzed by Wald's Chi-square, showed significant statistical differences among all groups (p<0.001), indicating that the restorative strategy affected the time required for the restoration. A generalized estimating equation model statistical analysis, performed to compare postoperative sensitivity, showed that neither the restorative technique, the adhesive strategy nor the presentation mode of the bulk-fill composite affected the overall risk of postoperative sensitivity (4.06 [2.22-6.81]). The use of bulk-fill composite, presented in capsules or syringes, is less time consuming and does not increase the risk or intensity of postoperative sensitivity relative to the traditional incremental technique.
Descritores: Resinas Compostas/uso terapêutico
Restauração Dentária Permanente/efeitos adversos
Sensibilidade da Dentina/etiologia
-Complicações Pós-Operatórias/etiologia
Valores de Referência
Seringas
Fatores de Tempo
Cápsulas
Método Duplo-Cego
Reprodutibilidade dos Testes
Fatores de Risco
Resultado do Tratamento
Limites: Humanos
Masculino
Feminino
Tipo de Publ: Ensaio Clínico Controlado Aleatório
Responsável: BR1.1 - BIREME


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Id: biblio-1100929
Autor: Nahas, Rodrigo; Gordim, Valéria; Carvalho, Cassio Volponi; Calderero, Luis Marcelo; Rosa, Ecinele Francisca; Sakiyama, Thaís; César Neto, João Batista; Pannuti, Cláudio Mendes; Romito, Giuseppe Alexandre.
Título: Treatment of multiple recessions with collagen matrix versus connective tissue: a randomized clinical trial
Fonte: Braz. oral res. (Online);33:e123, 2019. tab, graf.
Idioma: en.
Resumo: Abstract The objective of this study was to determine whether collagen matrix (CM) is an alternative to connective tissue graft technique (CTG) in the treatment of multiple gingival recessions (GR). The indication of CM for the treatment of multiple GR is not yet clear. More studies are needed to better understand this treatment modality, as an alternative to CTG. In this single-blind, split-mouth randomized clinical trial, fifteen patients with multiple Miller class I upper GR were selected and randomly assigned to control group (CTG) or test group (CM). Root coverage (RC) and patient-centered outcomes were evaluated at baseline and after 3, 6, and 12 months. A total of 82 GRs were treated. There was no significant difference regarding GR depth (GRD, primary outcome) between CTG (0.5 ± 0.9 mm) and CM groups (0.6 ± 1.0 mm) (p = 0.225). Percentage of RC was 82.14% in CTG and 77.7% in CM. Both groups demonstrated a gain in keratinized tissue width at 12 months (p < 0.05). Dentine hypersensitivity was effectively reduced in both groups. Postoperative pain was significantly higher in the CTG (p = 0.001). Esthetic satisfaction was high for both groups, with no significant difference (p > 0.05) between groups. After 12 months, both surgical treatments were able to promote RC, and GRD was similar in both CTG and CM groups.
Descritores: Colágeno/uso terapêutico
Tecido Conjuntivo/transplante
Retração Gengival/cirurgia
-Retalhos Cirúrgicos
Fatores de Tempo
Modelos Lineares
Método Simples-Cego
Reprodutibilidade dos Testes
Seguimentos
Resultado do Tratamento
Estatísticas não Paramétricas
Sensibilidade da Dentina/prevenção & controle
Duração da Cirurgia
Escala Visual Analógica
Pessoa de Meia-Idade
Limites: Humanos
Masculino
Feminino
Adolescente
Adulto
Adulto Jovem
Responsável: BR1.1 - BIREME


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Texto completo SciELO Brasil
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Id: biblio-1132649
Autor: Department of Operative Dentistry and Dental MaterialsZeola, Livia Fávaro; Department of Operative Dentistry and Dental MaterialsTeixeira, Daniela Navarro Ribeiro; Department of Operative Dentistry and Dental MaterialsGalvão, Alexia da Mata; Department of Operative Dentistry and Dental MaterialsSouza, Paola Gomes; Department of Operative Dentistry and Dental MaterialsSoares, Paulo Vinícius.
Título: Brazilian dentists perception of dentin hypersensitivity management
Fonte: Braz. oral res. (Online);33:e115, 2019. tab, graf.
Idioma: en.
Projeto: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES).
Resumo: Abstract: The aim of this study was to investigate how Brazilian dentists perceive and manage dentin hypersensitivity (DH) in their clinical routine. A 13-item questionnaire-based survey was developed and sent electronically to a convenience sample of dentists. The questionnaire assessed the personal and dental practice characteristics of the sample, the occurrence of DH in their daily clinical practice, and management strategies. The data were analyzed descriptively and together with the chi-square test (a = 0.05). A total of 353 responses were obtained from September 2017 to March 2018. Of all the respondents, 62% were females, 49.9% reported fewer than five years of dental practice, and 70.5% were self-identified as private practitioners. Most of the dentists reported an estimated frequency (30-60%) of patients with DH in their practice. The most frequently cited (91.79%) trigger of DH was air blast and/or scratching with a probe. The first-choice strategy to manage DH was a dentin desensitizer (48.16%). The number of years in clinical practice did not influence DH relapse frequency (p = 0.76) significantly, or consider DH treatment as a problem (p = 0.22). The present findings indicate that, regardless of clinical experience, dentists in Brazil still consider DH management a challenge in their daily dental practice. In addition, the results suggest that guidelines should be developed to disseminate the available knowledge regarding this condition in ways that may influence decision-making processes among practitioners.
Descritores: Padrões de Prática Odontológica/estatística & dados numéricos
Gerenciamento Clínico
Sensibilidade da Dentina/terapia
-Brasil
Inquéritos e Questionários
Dessensibilizantes Dentinários/uso terapêutico
Tomada de Decisão Clínica
Limites: Humanos
Masculino
Feminino
Responsável: BR1.1 - BIREME


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Id: biblio-1132658
Autor: Rocha, Mariana Oliveira Cotta; Cruz, Aléxia Aguiar Carvalho Fonseca; Santos, Daniella Oliveira; Douglas-DE-Oliveira, Dhelfeson Willya; Flecha, Olga Dumont; Gonçalves, Patricia Furtado.
Título: Sensitivity and specificity of assessment scales of dentin hypersensitivity - an accuracy study
Fonte: Braz. oral res. (Online);34:e043, 2020. tab, graf.
Idioma: en.
Resumo: Abstract The aim of the present study was to compare the sensitivity and specificity of pain scales used to assess dentin hypersensitivity (DH). The preferred scale, and toothbrushing habits of participants were also investigated. This cross-sectional study was conducted with students and employees of a Brazilian Federal University who presented DH. The participants answered a questionnaire about their toothbrushing and drinking habits. Hypersensitive and non-sensitive teeth were submitted to tactile and ice stick stimuli. Then, the subjects marked their pain level in the visual analogue (VAS), numeric scale (NS), faces pain scale (FPS) and verbal evaluation scale (VES). DH was also assessed by Schiff scale (SS). The data were analyzed by Wilcoxon and Chi-Square tests, as well as by ROC curve. The mean age of the sample (56 women, 16 men) was 27.8 years. The most prevalent acidic beverage was coffee (36.0%) and the most preferred scale was the NS (47.2%). The pain level was statistically higher in teeth with DH compared to teeth without DH (p < 0.05). The accuracy ranged from 0.729 (SS) to 0.750 (NS). The highest sensitivity value was 81.9% for NS. The SS presented the highest specificity (91%). The visual analog, numerical, verbal evaluation, faces pain, and Schiff scales were accurate for DH diagnosis. The Schiff scale was the preferred scale for DH assessment.
Descritores: Medição da Dor/métodos
Sensibilidade da Dentina/diagnóstico
-Escovação Dentária/efeitos adversos
Bebidas/efeitos adversos
Índice de Gravidade de Doença
Estudos Transversais
Inquéritos e Questionários
Reprodutibilidade dos Testes
Sensibilidade e Especificidade
Estatísticas não Paramétricas
Expressão Facial
Limites: Humanos
Masculino
Feminino
Adolescente
Adulto
Adulto Jovem
Responsável: BR1.1 - BIREME


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Id: biblio-1091439
Autor: Castillo-Silva, Brenda E; Patiño-Marín, Nuria; Martínez-Castañón, Gabriel Alejandro; Medina-Solís, Carlo E; Zavala Alonso, Norma Verónica; Silva-Herzog, Daniel; Ramírez-Ortíz, Mariana; Laredo-Naranjo, Martha Alicia.
Título: Identification of the Most Appropriate Site for the Cold Test in Molar Teeth / Identificación del sitio más apropiado para la prueba de frío en dientes molares
Fonte: Odovtos (En línea);20(1):79-88, Jan.-Apr. 2018. tab.
Idioma: en.
Resumo: Abstract A test frequently used to complement endodontic diagnoses is the cold test; however, in the last 20 years, authors have reported incorrect results within pulp sensitivity tests. Specifically, a high frequency of false results in posterior teeth, were found. The aim of this study was to identify the most appropriate site for the cold test in molar teeth with a need for endodontic treatment, calculating predictive values, accuracy and reproducibility. A cross-sectional study was performed, evaluating 390 subjects. A total of 152 subjects of both genders from the ages of 15-65 years old participated. The ideal standard was established by direct pulp inspection, and the cold test agent used was 1,1,1,2-tetrafluoroethane. The patients were divided into four groups in relation to the molar tooth: (1) mandibular first molar, (2) mandibular second molar, (3) maxillary first molar, and (4) maxillary second molar. 169 teeth and 676 sites were studied. (a) The most appropriate sites for cold test were the middle third of the buccal surface and cervical third of the buccal surface in the mandibular molars with the following results: Middle third of the first molar: Accuracy 0.93, positive predictive value 0.90 and negative predictive value 0.96. Middle third of the second molar: Accuracy 0.93, positive predictive value 1.00 and negative predictive value 0.90. In relation to third cervical the results were: First molar: Accuracy 0.93, positive predictive value 0.89 and negative predictive value 0.97 y second molar: Accuracy 0.93, positive predictive value 1.00 and negative predictive value 0.90. (b) The highest reproducibility was observed in the middle third of the buccal surface with cervical third of the buccal surface in the mandibular second molar (1.00). The most appropriate site and reproducibility of the sites are auxiliary to complement endodontic diagnose with the cold test.

Resumen Una prueba frecuentemente utilizada para complementar los diagnósticos endodónticos es la prueba de frío. Sin embargo, en los últimos 20 años, los autores han reportado resultados incorrectos con las pruebas de sensibilidad pulpar. Específicamente, se ha observado una alta frecuencia de resultados falsos en dientes posteriores. El objetivo del estudio fue identificar el sitio más adecuado para la prueba de frío en dientes molares con necesidad de tratamiento endodóntico, calculando valores predictivos, exactitud y reproducibilidad. Se realizó un estudio transversal donde se evaluaron a 390 sujetos. 152 sujetos de ambos sexos de 15 a 65 años cumplieron con los criterios de inclusión. El estándar ideal que se utilizó en el estudio fue la inspección directa de pulpa en la cámara pulpar y la prueba de frío utilizada fue el 1,1,1,2-tetrafluoroetano. Los pacientes fueron divididos en cuatro grupos en relación al diente molar: (1) primer molar mandibular, (2) segundo molar mandibular, (3) primer molar maxilar, y (4) segundo molar maxilar. En el estudio se evaluaron 169 dientes con 676 sitios. (a) Los sitios más adecuados para la prueba de frío fueron el tercio medio y el tercio cervical de la superficie bucal en los molares mandibulares con los siguientes resultados: Tercio medio del primer molar: Exactitud 0.93, valor predictivo positivo 0.90 y valor predictivo negativo 0.96. Tercio medio del segundo molar: Exactitud 0.93, valor predictivo positivo 1.00 y valor predictivo negativo 0.90. En relación al tercio cervical los resultados fueron: Primer molar: Exactitud 0.93, valor predictivo positivo 0.89 y valor predictivo negativo 0,97 y segundo molar: Exactitud 0.93, valor predictivo positivo 1.00 y valor predictivo negativo 0.90. (b) La más alta reproducibilidad (1.00) se observó entre el tercio medio con el tercio cervical de la superficie bucal en el segundo molar inferior. El sitio más apropiado y la reproducibilidad de los sitios son auxiliares para complementar el diagnóstico endodóntico con la prueba de frío.
Descritores: Sensibilidade e Especificidade
Temperatura Baixa
Sensibilidade da Dentina/diagnóstico
Dente Molar
-Valor Preditivo dos Testes
México
Limites: Humanos
Masculino
Feminino
Tipo de Publ: Ensaio Clínico Fase I
Responsável: CR1.1 - BINASSS - Biblioteca Nacional de Salud y Seguridad Social


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Texto completo SciELO Chile
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Id: biblio-975767
Autor: Vilchez-Fuentes-Rivera, Katherine; Rumiche, Francisco Aurelio; Tay, Lidia Yileng.
Título: Efecto del Extracto de Maíz Morado "Chicha Morada" durante el blanqueamiento Dental. In vitro / Effect of Purple Corn Beverage "Chicha Morada" During Dental Bleaching. In vitro
Fonte: Int. j. odontostomatol. (Print);12(4):416-422, dic. 2018. tab, graf.
Idioma: es.
Resumo: RESUMEN: El resultado del tratamiento de blanqueamiento dental puede verse afectado en pacientes que consumen bebidas pigmentantes durante el tratamiento. El objetivo de este trabajo consistió en valuar el efecto in vitro de la exposición al extracto de maíz morado (chicha morada) sobre el color del esmalte humano, durante y después del tratamiento del blanqueamiento dental con peróxido de hidrógeno al 35 %. Se utilizaron 48 dientes humanos, divididos en grupos según la bebida a la que se expuso: Extracto de maíz morado peruano (MM), té verde (T) y agua destilada (A); la mitad de los especímenes expuestos a cada bebida fueron sometidos a blanqueamiento dental con peróxido de hidrógeno al 35 % durante los primeros días de exposición a la pigmentación, resultando en los siguientes grupos: Grupo A: Sin blanqueamiento + maíz morado, Grupo B: Sin blanqueamiento + té verde, Grupo C: Sin blanqueamiento + agua destilada, Grupo D: Con blanqueamiento + maíz morado, Grupo E: Con blanqueamiento + té verde, Grupo F: Con blanqueamiento + agua destilada. Los cambios de color se midieron con un espectrofotómetro digital (VITA Easyshade Advance 4.0, VITA, Alemania) antes del blanqueamiento, durante el blanqueamiento, finalizado el blanqueamiento y al final de los 36 días de exposición a los pigmentos. Según el ∆E, el extracto de maíz morado difiere significativamente con el agua destilada (p < 0,05). Con respecto al grado de luminosidad, el extracto de maíz morado con blanqueamiento presentó los menores valores de luminosidad (p < 0,05). En cuanto al croma, no hubo diferencias entre los grupos (p > 0,05). La exposición al extracto de maíz morado pigmenta los dientes, durante el blanqueamiento el extracto de maíz morado no afecta el tratamiento, pero si la exposición continúa luego del blanqueamiento dental, el color de los dientes se verá afectado.

ABSTRACT: The result of tooth whitening treatment may be affected in patients who consume staining drinks during treatment. The aim of this work was to evaluate the in vitro effect of the exposure to purple corn extract (chicha morada) on human enamel color, during and after the treatment of teeth whitening with 35 % hydrogen peroxide. Forty-eight human teeth were used, divided into groups according to the drink to which it was exposed: Peruvian purple corn extract (MM), green tea (T) and distilled water (A); half of the specimens exposed to each drink were subjected to tooth whitening with 35 % hydrogen peroxide during the first days of exposure to pigmentation, resulting in the following groups: Group A: Without bleaching + purple corn, Group B: Without whitening + green tea, Group C: No whitening + distilled water, Group D: With whitening + purple corn, Group E: With whitening + green tea, Group F: With whitening + distilled water. The color changes were measured with a digital spectrophotometer (VITA Easyshade Advance 4.0, VITA, Germany) before bleaching, during whitening, after whitening and at the end of 36 days of exposure to pigments. According to the ∆E, the purple corn extract differs significantly with the distilled water (p <0.05). Regarding the degree of luminosity, the purple corn extract with whitening presented the lowest luminosity values (p <0.05). As for the chroma, there were no differences between the groups (p> 0.05). Exposure to purple corn extract pigments the teeth, during whitening the purple corn extract does not affect the treatment, but if the exposure continues after tooth whitening, the color of the teeth will be affected.
Descritores: Pigmentos Biológicos/química
Clareamento Dental
Clareadores Dentários
-Peru
Bebidas
Técnicas In Vitro
Espectrofotômetros
Comissão de Ética
Zea mays/classificação
Zea mays/química
Sensibilidade da Dentina
Peróxido de Hidrogênio
Limites: Humanos
Responsável: CL1.1 - Biblioteca Central



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