Base de dados : LILACS
Pesquisa : E05.320.274 [Categoria DeCS]
Referências encontradas : 163 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 17 ir para página                         

  1 / 163 LILACS  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
Id: biblio-1145337
Autor: Rojas, Victor; Macherone, Catalina; Zursiedel, Maria Ignacia; Valenzuela, Juan Guillermo.
Título: Rapid maxilary expansion in young adults: comparison of tooth-borne and bone-borne appliances, a cohort study / Expansión rápida maxilar en pacientes adultos jóvenes: comparación de aparatos dentosoportados y esqueletalmente soportados: estudio de cohorte
Fonte: J. oral res. (Impresa);8(3):201-209, jul. 31, 2019. graf, tab.
Idioma: en.
Resumo: Introduction: Maxillary constrictions are one of the most frequent abnormalities, regardless of the type of dentition studied. They can be treated either with tooth-borne or bone-borne expander appliances, depending on the biological maturation of the patient. Treatment during prepubertal stages has been shown to be successful, but there is evidence of an open suture even in late adolescence stages. The aim of this study is to compare the effects of a rapid expansion bone-borne device to a tooth-borne device in young adults suffering from maxillary constriction, by means of Cone-Beam Computed Tomography. Materials and methods: A retrospective observational study was conducted in nine patients (three males, six females) with a mean age of 18±5.5 years, who attended the Dentistry Service of Universidad de Chile during 2014-2015. Six patients were treated with tooth-borne appliances (Hyrax type) and three patients with bone-borne appliances (MARPE). Linear measurements of the anterior and posterior transverse dimension and angular measurements of the inclination of molars and incisors were obtained through CBCT for each group in T1 and T2. Results: A significant increase in the posterior transverse dimensions in both groups was observed. Radiolucency of the suture was observed in all patients treated with miniscrews and in half of the patients treated with Hyrax. Greater angulation of molars was shown in the tooth-borne group in comparison with the bone-borne group. Conclusion: Both appliances caused an increase in the posterior transverse dimension, but bone anchored appliances achieved a more parallel and skeletal expansion. Randomized clinical trials with a larger sample and follow-up are needed.

Introducción: Las compresiones maxilares son una de las anomalías más frecuentes, independiente del tipo de dentición que se esté estudiando. Su tratamiento se puede realizar con un aparato expansor ya sea dentosoportado o esqueletalmente soportado, dependiendo de las consideraciones de maduración biológica del paciente. Se ha demostrado éxito en el tratamiento en etapas prepuberales, sin embargo, existe evidencia de una sutura abierta aún en etapas post adolescencia. El objetivo de este estudio es comparar, mediante Cone Beam CT, los efectos de un dispositivo de expansión rápida maxilar esqueletamente soportado, en relación a los dentosoportados, en adultos jóvenes con compresión maxilar. Material y método: Se realizó un estudio de tipo observacional retrospectivo, donde se evaluaron nueve pacientes (tres hombres y seis mujeres) con un promedio de edad de 18±5,5 años,que asistieron al Servicio de Ortodoncia de la Universidad de Chile, durante los años 2014-2015. Seis pacientes fueron tratados con aparatos dentalmente soportados (tipo Hyrax) y tres pacientes con apartos esqueletalmente soportados (MARPE). A través de CBCT se tomaron medidas lineares de la dimensión transversal anterior y posterior, y medidas angulares de la inclinación de molares e incisivos para cada grupo en T1 y T2. Resultados: Hubo un aumento significativo en la dimensión transversal posterior de ambos grupos. Se presentó radiolucidez de la sutura en un 100% de los pacientes tratados con microtornillos y 50% de los pacientes tratados con hyrax. Hubo mayor angulación de molares en el grupo dentosoportado en comparación al grupo esqueletalmente soportado. Conclusiones: Ambos aparatos lograron un aumento de la dimensión transversal posterior, sin embargo, los de anclaje esqueletal lograron una expansión más paralela y esqueletal. Hacen falta ensayos clínicos aleatorizados con mayor muestra y seguimiento.
Descritores: Aparelhos Ortodônticos
Próteses e Implantes
Técnica de Expansão Palatina/instrumentação
-Desenho de Aparelho Ortodôntico
Tomografia Computadorizada de Feixe Cônico
Limites: Humanos
Masculino
Feminino
Adolescente
Adulto
Adulto Jovem
Tipo de Publ: Estudo Observacional
Responsável: CL30.1 - Biblioteca


  2 / 163 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
Id: biblio-1147671
Autor: Sandoval López, Rafael; Hernández Rivas, María Isabel; Hernández Rivas, María Isabel.
Título: Aditamento deslizante sobre microimplante, para la corrección de maloclusión Clase II división 1: reporte de un caso clínico / Sliding Jig on Microimplant for the correction of Class II division 1 malocclusion: case report
Fonte: Ortodoncia;84(167):44-54, jun. 2020. ilus.
Idioma: es.
Resumo: La maloclusión de Clase II ha sido tratada con diferentes técnicas y con diferentes aparatos que, en su conjunto, promueven la corrección del problema. Cada uno de ellos tiene sus propias indicaciones, y proporciona la mejora de la función, la estética, la salud y la estabilidad de los tratamientos ortodónticos. Se ha demostrado la efectividad de muchos de ellos para la corrección de este problema. El objetivo de este trabajo es presentar la confección y el mecanismo de acción de un aditamento ortodóntico auxiliar para el movimiento dentario, conocido como "aditamento deslizante sobre microimplante" (ADSM), utilizado con aparatos fijos en el tratamiento de la maloclusión Clase II(AU)

Class II malocclusion has been treated with different techniques and with different devices, which as a whole promote the correction of the problem. Each of them has its own indications and provides the improvement of function, aesthetics, health and stability of orthodontic treatments. The effectiveness of many of them has been demonstrated for the correction of this problem. The objective of this work is to present the making and the mechanism of action of an auxiliary orthodontic attachment for the dental movement known as Sliding Jig on Microimplant (SJOM), which is used in association with fixed appliances in the treatment of Class II malocclusion(AU)
Descritores: Implantes Dentários
Desenho de Aparelho Ortodôntico
Procedimentos de Ancoragem Ortodôntica
Má Oclusão de Angle Classe II
Má Oclusão de Angle Classe II/terapia
Responsável: AR408.1 - Biblioteca


  3 / 163 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
Texto completo
Id: biblio-1101252
Autor: VILANOVA, Lorena; HENRIQUES, José Fernando Castanha; PATEL, Mayara Paim; REIS, Rachelle Simões; GREC, Roberto Henrique da Costa; ALIAGA-DEL CASTILLO, Aron; BELLINI-PEREIRA, Silvio Augusto; JANSON, Guilherme.
Título: Class II malocclusion treatment changes with the Jones jig, Distal jet and First Class appliances
Fonte: J. appl. oral sci;28:e20190364, 2020. tab, graf.
Idioma: en.
Projeto: CAPES; . FAPESP; . FAPESP.
Resumo: Abstract Objective Maxillary molar distalization with intraoral distalizer appliances is a non-extraction orthodontic treatment used to correct molar relationship in patients with Class II malocclusion presenting maxillary dentoalveolar protrusion and minor skeletal discrepancies. This study compares the changes caused by three distalizers with different force systems. Methodology 71 patients, divided into three groups, were included. The Jones jig group (JJG, n=30; 16 male, 14 female, 13.17 years mean age) was treated with the Jones jig for 0.8 years. The Distal jet group (DJG, n=25; 8 male, 17 female, 12.57 years mean age) was treated with the Distal jet for 1.06 years. The First Class group (FCG, n=16; 6 male, 10 female, 12.84 years mean age) was treated with the First Class for 0.69 years. Intergroup treatment changes were compared using one-way ANOVA, followed by post-hoc Tukey's tests. Results Intergroup comparisons showed significantly greater maxillary incisor protrusion in DJG than in FCG (2.56±2.24 mm vs. 0.74±1.39mm, p=0.015). The maxillary first premolars showed progressive and significantly smaller mesial angulation in JJG, FCG and DJG, respectively (14.65±6.31º, 8.43±3.99º, 0.97±3.16º; p<0.001). They also showed greater mesialization in JJG than FCG (3.76±1.46 mm vs. 2.27±1.47 mm, p=0.010), and greater extrusion in DJG compared to JJG (0.90±0.77 mm vs 0.11±0.60 mm, p=0.004). The maxillary second premolars showed progressive and significantly smaller mesial angulation and mesialization in JJG, FCG and DJG, respectively (12.77±5.78º, 3.20±3.94º, -2.12±3.71º and 3.87±1.34 mm, 2.25±1.40 mm, 1.24±1.26 mm, respectively; p<0.001). DJG showed smaller distal angulation of maxillary first molars (-2.14±5.09º vs. -7.73±4.28º and -6.05±3.76º, for the JJG and FCG, respectively; p<0.001) and greater maxillary second molars extrusion (1.17±1.41 mm vs -0.02±1.16 mm and 0.16±1.40 mm, for the JJG and FCG, respectively; p=0.003). Overjet change was significantly larger in DJG compared to FCG (1.79±1.67 mm vs 0.68±0.84; p=0.046). Treatment time was smaller in FCG (0.69±0.22 years vs 0.81±0.33 years and 1.06±0.42 years, comparing it with the JJG and DJG, respectively; p=0.005). Conclusion The three appliances corrected the Class II molar relationship by dentoalveolar changes. The Distal jet produced smaller molar distal angulation than the Jones jig and First Class. The First Class appliance showed less anchorage loss, greater percentage of distalization and shorter treatment time than the Jones jig and Distal jet.
Descritores: Técnicas de Movimentação Dentária/instrumentação
Desenho de Aparelho Ortodôntico
Aparelhos Ortodônticos Fixos
Má Oclusão de Angle Classe II/terapia
Dente Molar/fisiopatologia
-Valores de Referência
Cefalometria
Reprodutibilidade dos Testes
Estudos Retrospectivos
Análise de Variância
Resultado do Tratamento
Procedimentos de Ancoragem Ortodôntica/instrumentação
Má Oclusão de Angle Classe II/fisiopatologia
Limites: Humanos
Masculino
Feminino
Criança
Adolescente
Responsável: BR28.1 - Serviço de Biblioteca e Documentação Professor Doutor Antônio Gabriel Atta


  4 / 163 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
Id: biblio-1120824
Autor: Arbildo, Heber; Gamarra, Luis; Rojas, Sandra; Infantes, Edward; Cruzado, Fredy; Vásquez, Hernán.
Título: Comparing the periodontal clinical effect between conventional and self-ligating brackets: systematic review and meta-analysis
Fonte: J. oral res. (Impresa);7(4):155-161, abr. 27, 2018. tab, graf, ilus.
Idioma: en.
Resumo: Introduction: orthodontists constantly seek to reduce the duration of their provided treatments and the patient's time in the office. for this reason, different bracket systems are currently used in orthodontics; an example is self-ligating brackets (SLB) which are believed to offer advantages over conventional brackets (CB). objective: to evaluate and compare the clinical periodontal effect of CB and SLB through a systematic review and a meta-analysis. material and method: a search of the literature was carried out until December 2017, in the biomedical databases: PubMed, Embase, SciELO, ScienceDirect, SIGLE, LILACS, BBO, Google Scholar and the Cochrane Central Register of Controlled Trials. the selection criteria of the studies were defined as such: randomized clinical trials, up to 5 years old and that report the clinical effects (probing depth, bleeding on probing, gingival index and plaque index) from the use of CB and SLB. the risk of study bias was analyzed through the Cochrane Handbook of systematic reviews of interventions. results: the search strategy resulted in 12 articles, eight of which reported no difference in the reduction in probing depth, bleeding on probing, gingival index and plaque index (p>0.05) between CB and SLB. conclusion: the literature reviewed suggests that there are no differences in the periodontal clinical effect among patients who received orthodontic treatment with CB or SLB.
Descritores: Braquetes Ortodônticos/microbiologia
Desenho de Aparelho Ortodôntico
-Índice Periodontal
Índice de Placa Dentária
Placa Dentária
Limites: Humanos
Tipo de Publ: Revisão
Responsável: CL30.1 - Biblioteca


  5 / 163 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
Id: biblio-1095172
Autor: Barbosa, William Carlos Silva; Correr, Américo Bortolazzo; Carneiro, Diego Patrik Alves; Vedovello Filho, Mário; Godoi, Ana Paula Terossi de; Valdrighi, Heloísa Cristina.
Título: Evaluation of friction on self-ligating and conventional brackets associated with different types of archwires submitted to sliding mechanics
Fonte: Braz. j. oral sci;18:e191605, jan.-dez. 2019. ilus.
Idioma: en.
Resumo: Aim: The aim of this study was to verify the frictional force during sliding mechanics in orthodontic tooth movement, using conventional metal brackets of the active and passive self-ligating types with stainless steel and copper nickel titanium archwires. Methods: This experimental in vitro study was conducted with conventional metal (Morelli, Sorocaba, SP, Brazil) brackets, active self-ligated (SLI Morelli, Sorocaba, SP, Brazil) and passive self-ligated (SLP Morelli, Sorocaba, SP, Brazil), with slot 0.022 x 0.028 inches and Roth prescription. The brackets were tested with rectangular section 0.019 x 0.025 inch copper nickel titanium and stainless steel archwires. For each type of bracket, 10 sets of plate/bracket/archwire segment (n=10) were fabricated. Non-parametric Kruskal Wallis and Dunn tests were used for comparison between types of brackets and Wilcoxon tests for comparison between types of archwires. Results: The results showed that the frictional force values were higher with copper nickel titanium than with stainless steel archwires (p<0.05). When copper nickel titanium archwires were used, the active self-ligating brackets showed higher frictional force values than the other types, followed by the conventional brackets. Lower frictional force values were observed with passive self-ligating brackets. For stainless steel archwires, no difference was observed between conventional and active self-ligating brackets, the passive self-ligating type presented lower frictional force values than the others. Conclusion: It was concluded that the higher frictional force was observed when active self-ligating brackets were associated with copper nickel titanium archwires. Lower frictional force was verified between passive self-ligating brackets combined with stainless steel archwires
Descritores: Braquetes Ortodônticos
Desenho de Aparelho Ortodôntico
Fricção em Ortodontia
Responsável: BR218.1 - Biblioteca Carlos Henrique Robertson Liberalli


  6 / 163 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
Id: biblio-1024548
Autor: Di Giano, María Eugenia; Bono, Andrea Erica.
Título: Caso clínico tratado con sistema de alineadores removibles / A clinical case treated with clear aligners
Fonte: Ortodoncia;82(164-165):66-73, jun. 2019. ilus.
Idioma: es.
Descritores: Aparelhos Ortodônticos Removíveis
Braquetes Ortodônticos
Desenho de Aparelho Ortodôntico
Contenções Ortodônticas
Má Oclusão de Angle Classe II
Limites: Adulto
Tipo de Publ: Relatos de Casos
Responsável: AR408.1 - Biblioteca


  7 / 163 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
Id: biblio-995920
Autor: González Zuazquita, Mónica; Di Giano, María Eugenia; La Valle, Gabriela; Iaracitano, Betina.
Título: Expansión y contracción en ortodoncia con alineadores / Orthodontic expansion and contraction with aligners
Fonte: Ortodoncia;82(163):81-83, ene.-jun. 2018. ilus.
Idioma: es.
Descritores: Técnicas de Movimentação Dentária
Técnica de Expansão Palatina
Desenho de Aparelho Ortodôntico
Desenho Assistido por Computador
Responsável: AR408.1 - Biblioteca


  8 / 163 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
Id: biblio-995910
Autor: Bacci, Henrique.
Título: Ortodoncia lingual: de la artesanía al CAD-CAM / Lingual orthodontics: from handicraft to CAD-CAM
Fonte: Ortodoncia;82(163):68-76, ene.-jun. 2018. ilus.
Idioma: es.
Resumo: La Ortodoncia Lingual es una técnica con un gran atractivo para el público adulto debido a su as-pecto prácticamente invisible. Aunque se sabe que en algunas partes del mundo la popularidad de la técnica lingual es notoria, en Occidente esta propuesta de tratamiento todavía es poco diseminada. Los aparatos linguales totalmente personalizados por tecnología CAD-CAM repre-sentan un reciente diseño de tratamiento. Los hallazgos demuestran que la infinita posibilidad de individualización de los aparatos generados por esta tecnología tiene grandes posibilidades de dictar el camino de una nueva era de la Orto-doncia Estética.

Lingual Orthodontics is a technique with great appeal for adults due to its almost invisible appearance. Although it is known that in some parts of the world the popularity of the Lingual Technique is notorious, in the West this treatment proposal is not widely spread out yet. The fully customized lingual appliances produced by CAD-CAM technology represent a recent treatment design. The findings show that the endless possibility of individualization of the appliances generated by this technology has great chance to dictate the way of a new era of Aesthetic Orthodontics.
Descritores: Braquetes Ortodônticos
Desenho de Aparelho Ortodôntico
Desenho Assistido por Computador
Estética Dentária
Limites: Pessoa de Meia-Idade
Tipo de Publ: Relatos de Casos
Responsável: AR408.1 - Biblioteca


  9 / 163 LILACS  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
Id: biblio-995901
Autor: Mateu, María Eugenia; La Valle, Gabriela; Lumi, María; Calabrese, Diana; Iglesias, Marina; Folco, Alejandra Alicia.
Título: Tratamiento de mordida abierta con placas alineadoras. Reporte de un caso clínico / Open bite treatment with aligners. Case report
Fonte: Ortodoncia;82(163):18-24, ene.-jun. 2018. ilus.
Idioma: es.
Resumo: Este artículo describe el tratamiento de ortodoncia con placas alineadoras, realizado en la Cátedra de Ortodoncia de la Facultad de Odontología de la Universidad de Buenos Aires, en una paciente de 25 años de edad, con mordida abierta anterior dentoalveolar y ligero apiñamiento dentario, quien concurre por recidiva de su tratamiento completado anteriormente. Se planificó el tratamiento con placas alineadoras. Luego de 17 meses de uso, se lograron los objetivos, y se logró el cierre de la mordida. Se corrigió el apiñamiento y se obtuvieron guías funcionales. El caso es acompañado de registros fotográficos y tomográficos iniciales y finales.

This paper describes the orthodontics treatment with aligners, performed in the course of Orthodontics at the University of Buenos Aires, on a female 25-years-old patient who attends for consultation due to the recurrence of a previously treated dentoalveolar open bite and mild crowding problem. Treatment with aligners was planned. The objectives were achieved after 17 months of treatment, and the bite closure was obtained. The crowding was corrected and functional guides were obtained. The case is accompanied by initial and final photographic and tomographic records.
Descritores: Recidiva
Desenho de Aparelho Ortodôntico
Mordida Aberta/terapia
Má Oclusão de Angle Classe II
Limites: Adulto
Tipo de Publ: Relatos de Casos
Responsável: AR408.1 - Biblioteca


  10 / 163 LILACS  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
Texto completo
Id: biblio-905995
Autor: Barreda, Graciela J; Dzierewianko, Elizabeth A; Muñoz, Karina A; Piccoli, Gisela I.
Título: Surface wear of resin composites used for Invisalign(R) attachments / Desgaste superficial de las resinas compuestas utilizadas en los "attachments" de la técnica Invisalign®
Fonte: Acta odontol. latinoam;30(2):90-95, 2017. ilus, tab.
Idioma: en.
Resumo: Orthodontic treatments with Invisalign® require the use of attachments, which are composite resin buttons attached to tooth surfaces. Attachments constitute one of the most powerful tools for improving the efficiency of orthodontic tooth movement. The main purpose of this study was to evaluate surface wear over six months in two resin composites (Filtek Z350 XT, 3M ESPE and Amelogen Plus TW, Ultradent Products Inc.) used for making Invisalign® attachments. These composites were selected for their esthetic and mechanical properties. Forty attachments were bonded to the buccal surface of maxillary teeth. Materials were randomized and assigned in a double blind manner. Impressions were taken of the attachments using a preestablished technique immediately after bonding and following 6 months of clinical use. The impressions were examined by Scanning Electron Microscopy (SEM) at 12fold magnification to identify changes in surface texture and attachment shape. Data were analyzed using MannWhitney's test on the overall ranking of detected changes in those variables. Statistically significant differences (P<0.001) were found for surface wear, with greater changes in Amelogen Plus. Attachment shape did not change significantly in either material (P>0.05). According to the results of this study, the alteration of the attachment surface during the first six months of treatment depends on the composite used, while attachment shape does not appear to be affected, so the clinical performance of the materials evaluated could be considered acceptable (AU)

Los tratamientos ortodóncicos con alineadores Invisalign® utilizan aditamentos construidos en resinas compuestas llamados "attachments" adheridos a la superficie dentaria. El "attachment" es una de las herramientas más potentes para mejorar la eficiencia del movimiento dental. El propósito de este estudio fue evaluar el desgaste superficial de dos resinas compuestas utilizadas para construir los "attachments" en el tratamiento de ortodoncia con la técnica de alineadores Invisalign®. Se evaluaron 40 "attachments" adheridos a la superficie vesti bular de piezas dentarias del maxilar superior en un período de 6 meses. Los "attachments" fueron construidos en forma aleatoria y a doble ciego con dos resinas compuestas (Filtek Z350 XT de 3M ESPE y Amelogen Plus TW Ultradent Products Inc) elegidas de acuerdo con las propiedades estéticas y mecánicas requeridas. Los "attachments" fueron impresionados con una técnica preestablecida inmediatamente luego de ser adheridos y a los 6 meses. Las muestras fueron preparadas para su observación mediante Microscopía Electrónica de Barrido (MEB) a 12 aumentos. Se observaron los cambios producidos en la textura superficial y la forma entre el inicio y los seis meses de tratamiento. Los datos fueron analizados y comparados utilizando la prueba de MannWhitney, realizada en función del ordena miento global, de menor a mayor según el cambio producido en esas variables. Los materiales analizados mostraron una diferencia estadísti camente significativa (P<0,001) en el desgaste superficial, siendo el Amelogen Plus el material que evidenció mayor cambio. Las modificaciones en la forma de los "attachments" no fueron estadísticamente significativas en ambos materiales (P>0,05). Según los resultados obtenidos en este estudio, la modificación de la superficie de los "attachments" durante los primeros seis meses de tratamiento varía en función del composite empleado, en tanto la forma del "attachment" no parece ser afectada de manera similar, por lo que el desempeño clínico podría ser considerado aceptable cuando se emplean los materiales evaluados (AU)
Descritores: Aparelhos Ortodônticos
Propriedades de Superfície
Desenho de Aparelho Ortodôntico
Resinas Compostas
-Teste de Materiais
Microscopia Eletrônica de Varredura
Análise Estatística
Estética Dentária
Limites: Humanos
Tipo de Publ: Estudo de Avaliação
Responsável: AR29.1 - Biblioteca



página 1 de 17 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