RESUMO
The aim of this study was to evaluate the sagittal and vertical relapses after Le Fort 1 osteotomy in bilateral cleft lip and palate (BCLP) patients. Lateral cephalograms before surgery, immediately after the procedure, at one year, and at least two years (when available) after surgery were superimposed. The positions of five landmarks were studied in a coordinate system. Uni- and multivariate analyses investigated the effect of various factors on the relapse. Of the 71 patients included for a BCLP, 54 presented complete data at one year, and 30 patients were included for the long follow-up study (mean of 55 months). The mean maxillary advancement was 6.2 mm on the sub-spinal point (A). Sagittal relapse occurred at one year (mean of 1.1 mm on point A, 0.7 mm on point prosthion (P); p < 0.0001) and progressed by 0.5 mm and 1.0 mm, respectively, on the same points at the last follow-up. The mean vertical relapse was 0.5 mm on point A (p = 0.044), 0.6 mm on point P (p = 0.16) and 0.5 mm on incisor (I) (p = 0.056). The vertical relapse was correlated to the degree of vertical movement. Three factors were associated to the recurrence including a prior pharyngeal flap, an associated mandibular osteotomy and smoking habits.
Assuntos
Fenda Labial , Fissura Palatina , Humanos , Fenda Labial/cirurgia , Fissura Palatina/cirurgia , Estudos Retrospectivos , Seguimentos , Osteotomia de Le Fort/métodos , Maxila/cirurgia , Recidiva , CefalometriaRESUMO
ABSTRACT: Aim: To compare the hydraulic conductance of human dentin disks which have been treated with an adhesive by operators of different genders and by active or passive modes of application. 60 third molars of healthy adults were included in resin blocks. These were cut to obtain 60 dentin disks of 1mm +/- 0.1 mm thick. Group 1 and 2, the adhesive was applied by 15 male operators passively (group 1) and vigorously (group 2). Groups 3 and 4, the adhesive was applied by 15 female operators passively (group 3) and vigorously (group 4). The flow rate was measured with a diffusion chamber and the hydraulic conductance of the disks was determined. Results: Mean for hydraulic conductance of each group was: 1 (0.01752), 2 (0.00355), 3 (0.01215), 4 (0.00877) in μl/minxcm2. There was statistically significant difference in the hydraulic conductance between experimental and control groups. There was no difference in dentin hydraulic conductance between genders. There was statistically significant difference in hydraulic conductance between the different modes of application. There was a moderate association between the pressure exerted when applying the adhesive and the values of dentin hydraulic conductance in vitro.
Assuntos
Humanos , Técnicas In Vitro , Adesivos , Adesivos Dentinários , Dentina , Dente SerotinoRESUMO
ABSTRACT: Aim: Determine the influence of time of passive evaporation of the solvent in a universal adhesive on the hydraulic conductance and permeability of dentin in an ex vivo human model. Henceforth, 60 healthy non-occluding third molars, indicated for therapeutic extraction/removal, of informed and consented patients aged between 18 and 30 years, were used here in. First, extracted teeth were incorporated into epoxy resin blocks and then dentin disks (1mm +/- 0.1 mm thick) were prepared. Dentin was acid etched with 35% ortho-phosphoric acid for 15 seconds in order to remove the smear layer and obtain permeable dentin. Samples were then randomized and divided into 5 groups (n=12). A Single Bond Universal adhesive layer with different time of passive evaporation of the solvent was then applied: GC=10 seconds, G1=30 seconds, G2=60 seconds, G3=300 seconds and G4=50 minutes. Finally, the flow rate was measured using a diffusion chamber, a model previously proposed by Pashley et al. Results: The obtained hydraulic conductance averages were as follows: GC=0.00052, G1=0.00018, G2=0.00006, G3=0.00005, G4=0.00005 expressed in uL•cm-2•min-1cm•H2O-1. For comparisons between groups, ANOVA and post hoc Tukey (ρ<0.05) tests were applied, resulting in a statistically significant difference between the GC group and all experimental groups (ρ <0.05). An influence of solvent passive evaporation thereby reducing hydraulic conductance in the experimental groups, was detected.
Assuntos
Adesivos/química , Adesivos Dentinários/química , Volatilização , Água/químicaRESUMO
Abstract: Aim: to determine the knowledge and management of dentoalveolar trauma in primary school teachers in rural and urban schools in the district of Paillaco, Chile, in 2014. Methods: An observational study was conducted in 167 teachers in the city of Paillaco. A survey developed from the questionnaires proposed by McIntyre et al. and Yassen et al. was used. The survey, previously approved by 2 experts, was applied in person in the school facilities, after the application of a pilot test. Demographic characteristics of the participants and the frequency of correct responses by geographical location of the educational establishment (rural/urban) were analyzed. For the inferential analysis, the chi-square and t-tests (p smaller than .05) were used. Results: 130 valid questionnaires (41.21 more less 0.95 years, 68.4 percent women) were obtained. Participating teachers achieved an 83.3 percent of correct diagnosis of dentoalveolar trauma and a 55.5 percent of correct answers regarding its management. There were with no statistically significant differences in relation to geographical location. Conclusion: Primary school teachers in the district of Paillaco have a high level of knowledge of dentoalveolar trauma, but not of its management.
Resumen: Objetivo: determinar el nivel de conocimiento y manejo del traumatismo dentoalveolar en un grupo de profesores chilenos de enseñanza básica, ciudad de Paillaco, año 2014. Metodología: Se realizó un estudio observacional de tipo censal en 167 profesores de Paillaco. Se utilizó una encuesta elaborada a partir de los cuestionarios propuestos por McIntyre et al. y Yassen et al. La encuesta se aplicó de forma presencial en las escuelas tras una prueba piloto y aprobación por 2 expertos. Se analizaron las características demográficas de los participantes y la frecuencia de respuestas correctas según ubicación geográfica del establecimiento educacional (rural/urbano). Para el análisis inferencial se utilizaron las pruebas de chi-cuadrado y t-test (p menor que .05). Resultados: Se obtuvieron 130 cuestionarios válidos (41,21 más menos 0,95 años, 68,4 por ciento mujeres). Los profesores participantes lograron un 83,3 por ciento de respuestas correctas sobre diagnóstico de trauma dentoalveolar y un 55,5 por ciento de respuestas correctas sobre su manejo, sin diferencias estadísticamente significativas según ubicación geográfica. Conclusión: Los profesores de enseñanza básica de la comuna de Paillaco presentan un alto nivel de conocimiento sobre trauma dentoalveolar, pero no sobre su manejo.
Assuntos
Humanos , Masculino , Adulto , Feminino , Pessoa de Meia-Idade , Idoso , Docentes , Conhecimentos, Atitudes e Prática em Saúde , Avulsão Dentária , Fraturas dos Dentes , Chile , Estudo Observacional , Inquéritos e QuestionáriosRESUMO
Infant facial fracture incidence is low. Most reported cases affect the jaw and are single fractures. We present a twenty-two-month old patient, who had a high-energy car accident. Among other injures, she suffered a multiple mandibular fracture: bicondylar, left body and right parasymphyseal. Stable internal fixation of parasymphyseal and body mandibular fracture was performed on the third day. Condylar fractures had a functional treatment with switching elastic traction to prevent ankylosis. Computed tomography (CT) showed mandibular condyles remodelling after six months. Clinical examination showed that mandibular movement ranges were preserved without alteration. Successful treatment of paediatric patients is based on the achievement of an adequate anatomic reduction and the stability of the fracture, allowing opportune form and function recovery, in order to assure further development of dental and facial structures...
La incidencia de fracturas faciales en infantes es baja. Los casos reportados muestran que afectan principalmente a la mandíbula y corresponden a fracturas únicas. Presentamos una paciente de 22 meses de edad, que sufre accidente automovilístico. Resulta entre otros, con múltiples frac-turas mandibulares: bicondílea, de cuerpo izquierdo y parasinfisiaria derecha. Al tercer día se realiza fijación interna estable en fractura parasinfisiaria y de cuerpo mandibular y tratamiento funcional de las frac-turas condíleas a través de tracción elástica alterna-da, para prevenir la anquilosis. Tomografía computa-da a los seis meses muestra remodelación de los cóndilos mandibulares. Al examen clínico los rangos de movimiento mandibular están conservados y sin alteración. El éxito del tratamiento en pacientes pediátricos se basa en obtener una adecuada reducción anatómica y estabilidad de la fractura, que permita recuperar oportunamente forma y función, asegurando el futuro desarrollo de las estructuras dentarias y faciales.
Assuntos
Humanos , Feminino , Lactente , Fixação Interna de Fraturas , Fraturas Mandibulares/cirurgiaRESUMO
The aim of the study is to determine the association. between abdominal obesity and periodontal disease by means of multivariate analysis. Materials and method: A cross -sectional observational study was carried out. From March to April 2014, patients admitted to the Dental SciencesBuilding at Universidad Austral de Chile were subjected to a clinical periodontalexamination. Periodontitis was defined by a probing pocket depth equal to orgreater than 4mm in at least one site of the teeth in two different quadrants,along with active bleeding within 30 seconds after probing. Abdominal obesity was defined by waist-hip ratio with values equal to or greater than 0.90 for men and 0.88 for women. Oral hygiene was assessed by Simplified Oral Hygiene Index. Smoker status was determined after undergoing an interview. Results: The sample comprised 136 participants (51 males and 85 females), with a mean age of 40.6+/-15.1 years. Prevalence of periodontal disease was 49.2 percent and obesity was 50.7 percent. A 62.3 percent of the patients showed both, periodontal disease and obesity. A statistically significant association between abdominal obesity (Odds ratio (OR)=2.4, 95 percent confidence interval (CI): 1.1, 5.1), cigarette comsumption(OR=4.0, 95 percent CI: 1.0, 16.5), poor oral hygiene (OR=2.8, 95 percent CI: 1.3, 5.9) and periodontal disease was established. Conclusion: There is a statically significant association between abdominal obesity and periodontal disease...
El objetivo es determinar la asociación de la obesidad abdominal y la enfermedad periodontal por medio de un análisis multivariado. Material y métodos: Se realizó un estudio observacional de corte transversal en donde se evaluaron pacientes ingresados al Edificio de las Ciencias Odontológicas de la Universidad Austral de Chile en los meses de marzo y abril del año 2014. Fueron sometidos a un examen clínico periodontal. La periodontitis se determinó con una profundidad al sondaje igual o superior a 4 mm. en al menos un sitio del diente en dos cuadrantes diferentes con sangrado activo hasta 30 segundos luego del sondaje; y la obesidad abdominal mediante el Índice cintura/cadera con valores igual o mayores a 0.9 en hombres y 0.88 en mujeres. Se evaluó la higiene oral mediante el Índice de Higiene Oral Simplificado; y la condición de fumador mediante un interrogatorio. Resultados: Se incluyeron 136 participantes (51 hombres y 85 mujeres) con una edad media de 40.6 años +/- 15.1 DE. La prevalencia de periodontitis fue 49.2 por ciento y de obesidad 50.7 por ciento. Un 62.3 por ciento presentó periodontitis y obesidad abdominal. Se estableció una asociación estadísticamente significativa entre obesidad abdominal (Odds ratio = 2.4, 95 por ciento Intervalo de confianza: 1.1, 5.1], consumo de tabaco (Odds ratio = 4.0, 95 por ciento Intervalo de confianza: 1.0, 16.5), higiene oral pobre (Odds ratio = 2.8, 95 por ciento Intervalo de confianza: 1.3, 5.9) y enfermedad periodontal. Conclusión: Existe una asociación estadísticamente significativa entre la obesidad abdominal y la enfermedad periodontal...
Assuntos
Humanos , Masculino , Adolescente , Adulto , Feminino , Adulto Jovem , Pessoa de Meia-Idade , Doenças Periodontais/epidemiologia , Obesidade Abdominal/epidemiologia , Tecido Adiposo , Distribuição por Idade e Sexo , Estudos Transversais , Análise Multivariada , Relação Cintura-QuadrilRESUMO
Introducción: la solución en la que se almacenan los discos de dentina mientras son estudiados, ha determinado ser vital para reproducir condiciones posibles de encontrar in vivo, y finalmente resulta crítica en la evaluación de cualquier estudio relativo a la conductancia hidráulica. El objetivo de este estudio fue determinar in vitro la variación en la tasa de filtración transdentinaria en discos de dentina humana, luego de 2,4,6,7,14,21 y 28 días almacenados en HBSS(Hanks Balanced Salt Solution), formalina al 10% y suero fisiológico. Métodos: se utilizaron 41 terceros molares humanos sanos en inoclusión. Estos dientes fueron desinfectados en Timol al 0,1% por 24 horas, para luego ser incluidos en bloques de resina epóxica. Estos fueron cortados de manera que se lograran discos de dentina de 1 mm de grosor. Posterior a esto, a los discos dentinarios se les midió su conductancia hidráulica, luego fueron separados para ser almacenados en diferentes medios. Se conformaron los siguientes grupos: 1)formalina al 10%; b) solución de Hank (HBSS) y c)suero fisiológico. Luego se midió su conductancia hidráulica luego de 1, 2, 4, 6, 7, 14, 21 y 28 días. El análisis estadístico fue por ANOVA y post hoc de Tukey (SPSSv15). Resultados: los resultados obtenidos indicaron que las medias de los discos dentinarios, en todas las soluciones de almacenamiento, aumentaron su conductancia hidráulica comparando el día de corte y el día 28 de análisis. Conclusiones: no existieron diferencias significativas (p > 0,005) de conductancia hidráulica entre los diferentes días de los discos almacenados en solución de Hank.
Introduction: the solution used to store dentin disks while being studied has proven to be vital in reproducing possible in vivo conditions, and it is ultimately critical in evaluating hydraulic conductance studies. The goal of this in vitro study was to determine transdentin filtration rate variation in human dentin disks after 2, 4, 6, 7, 14, 21, and 28 days stored in Hanks Balanced Salt Solution (HBSS), 10% formalin, and saline solution. Methods: this study included 41 unerupted healthy human third molars. These teeth were disinfected in 0.1% thymol for 24 hours before being embedded in epoxy resin blocks and then cut to obtain 1 mm thick dentin disks. The disks hydraulic conductance was later measured, and then they were separated and stored in different solutions. They were sorted out in three groups: a) 10% formalin, b) Hank solution (HBSS) and c) saline solution. Hydraulic conductance was measured after 1, 2, 4, 6, 7, 14, 21, and 28 days. Statistical analysis was performed by ANOVA and Tukeys post hoc (SPSS v.15). Results: the results suggest that the average of dentine disks hydraulic conductance increased in all the storage solutions when comparing the analysis between day 1 and day 28. Conclusions: no significant differences were found (p > 0.005) in terms of hydraulic conductance among the various times the disks were stored in Hanks solution.
Assuntos
Humanos , Dentina , DifusãoRESUMO
BACKGROUND: The purpose of the study was to determine if the effect of llama OIF on LH secretion is mediated by stimulation of the hypothalamus or pituitary gland. METHODS: Using a 2-by-2 factorial design to examine the effects of OIF vs GnRH with or without a GnRH antagonist, llamas with a growing ovarian follicle greater than or equal to 8 mm were assigned randomly to four groups (n = 7 per group) and a) pre-treated with 1.5 mg of GnRH antagonist (cetrorelix acetate) followed by 1 mg of purified llama OIF, b) pre-treated with 1.5 mg of cetrorelix followed by 50 micrograms of GnRH, c) pre-treated with a placebo (2 ml of saline) followed by 1 mg of purified llama OIF or d) pre-treated with a placebo (2 ml of saline) followed by 50 micrograms of GnRH. Pre-treatment with cetrorelix or saline was given as a single slow intravenous dose 2 hours before intramuscular administration of either GnRH or OIF. Blood samples for LH measurement were taken every 15 minutes from 1.5 hours before to 8 hours after treatment. The ovaries were examined by ultrasonography to detect ovulation and CL formation. Blood samples for progesterone measurement were taken every-other-day from Day 0 (day of treatment) to Day 16. RESULTS: Ovulation rate was not different (P = 0.89) between placebo+GnRH (86%) and placebo+OIF groups (100%); however, no ovulations were detected in llamas pre-treated with cetrorelix. Plasma LH concentrations surged (P < 0.01) after treatment in both placebo+OIF and placebo+GnRH groups, but not in the cetrorelix groups. Maximum plasma LH concentrations and CL diameter profiles did not differ between the placebo-treated groups, but plasma progesterone concentrations were higher (P < 0.05), on days 6, 8 and 12 after treatment, in the OIF- vs GnRH-treated group. CONCLUSION: Cetrorelix (GnRH antagonist) inhibited the preovulatory LH surge induced by OIF in llamas suggesting that LH secretion is modulated by a direct or indirect effect of OIF on GnRH neurons in the hypothalamus.
Assuntos
Camelídeos Americanos , Fase Folicular/efeitos dos fármacos , Hormônio Liberador de Gonadotropina/análogos & derivados , Hormônio Luteinizante/metabolismo , Ovulação/efeitos dos fármacos , Animais , Camelídeos Americanos/sangue , Camelídeos Americanos/metabolismo , Camelídeos Americanos/fisiologia , Regulação para Baixo/efeitos dos fármacos , Feminino , Fármacos para a Fertilidade/metabolismo , Fármacos para a Fertilidade/farmacologia , Fase Folicular/metabolismo , Hormônio Liberador de Gonadotropina/farmacologia , Antagonistas de Hormônios/farmacologia , Hormônio Luteinizante/sangue , Masculino , Indução da Ovulação/métodos , Placebos , Fluxo Pulsátil/efeitos dos fármacos , Sêmen/metabolismo , Sêmen/fisiologia , Proteínas de Plasma Seminal/metabolismo , Proteínas de Plasma Seminal/farmacologiaRESUMO
OBJECTIVE: To determine, in a sheep model, the effect of a short-term progestative treatment on growth dynamics and functionality of induced corpora lutea. DESIGN: Observational, model study. SETTING: Public university. PATIENT(S): Sixty adult female sheep. INTERVENTION(S): Synchronization and induction of ovulation with progestogens and prostaglandin analogues; ovarian ultrasonography, blood sampling, and ovariectomy. MAIN OUTCOME MEASURE(S): Determination of pituitary function and morphologic characteristics, expression of luteinizing hormone (LH) receptors, and progesterone secretion of corpora lutea. RESULT(S): The use of progestative pretreatments for assisted conception affect the growth patterns, the expression of LH receptors, and the progesterone secretion of induced corpora lutea. CONCLUSION(S): The current study indicates, in a sheep model, the existence of deleterious effects from progestogens on functionality of induced corpora lutea.
Assuntos
Corpo Lúteo/crescimento & desenvolvimento , Corpo Lúteo/metabolismo , Acetato de Fluorogestona/administração & dosagem , Ciclo Menstrual/fisiologia , Indução da Ovulação , Progesterona/metabolismo , Progestinas/administração & dosagem , Receptores do LH/biossíntese , Animais , Corpo Lúteo/efeitos dos fármacos , Feminino , Ciclo Menstrual/efeitos dos fármacos , Modelos Animais , Ovulação/efeitos dos fármacos , Ovulação/fisiologia , Indução da Ovulação/métodos , OvinosRESUMO
Este artículo revisa las acepciones comunes de los términos "cuerpo" y "corporalidad", las distingue y las sitúa en la vivencia de la imagen corporal femenina actual. Desde este análisis, propone algunas explicaciones en torno del culto al cuerpo, la vigorexia y los trastornos alimentarios. Concluye proponiendo un viraje desde la somatolisis actual a un proceso de integración cuerpo-corporalidad.
This paper review the common definitions of body and corporality. These are distinguished and settled in the current feminine corporal image. From this analysis it proposes some explanations in relation to the body worship, the "vigorexia" and the alimentary disorders. This paper concludes proposing a change from the current "somatolysis" to an integrative process of the body and corporality.
Este artigo revisa os conceitos comuns dos termos "corpo" e "corporalidade", as distingue e as situa na vivência da imagem corporal feminina atual. Desde esta análise, propõe algumas explicações em torno ao culto do corpo, a anorexia e os tanstornos alimentares. Conclui porpondo um olhar a partir da "somatolises" atual a um processo de integração corpo-corporal.
Assuntos
Humanos , Feminino , Imagem Corporal , Mulheres/psicologia , Percepção/éticaAssuntos
Humanos , Feminino , Adolescente , Adulto , Anorexia , Bulimia , Meio Social , Redes Comunitárias , Relações Interpessoais , Relações Mãe-Filho , Apego ao ObjetoRESUMO
La anorexia nerviosa es un trastorno caracterizado por un extremo adelgazamiento, miedo fóbico a subir de peso, trastorno de la percepción de la imagen corporal y amenorrea. La bulimia nerviosa se caracteriza por la presencia de "atracones", con ingesta de grandes cantidades de comida en un corto período de tiempo y conductas compensatorias inapropiadas para prevenir el aumento de peso: vómitos autoinducidos, abuso de laxantes y diuréticos, ayuno y ejercicio excesivo. La prevalencia de estos trastornos no se conocen en Chile. Se estima que entre el 1 y 4 por ciento de las mujeres adolescentes y jóvenes sufren de anorexia nerviosa y que ha habido un significativo aumento de estos trastornos de acuerdo a lo reportado en la literatura extranjera. La bulimia nerviosa sería más frecuente que la AN, pero no se conoce la real magnitud del problema. En la Clínica Psiquiátrica de la Universidad de Chile, la consulta y hospitalización por trastornos de la alimentación se ha triplicado en la última década. En el presente estudio se evaluaron 284 alumnos unversitarios, 86 hombres y 198 mujeres a través del Eating Attitudes Test (E.A.T) para detectar conductas asociadas a los trastornos de la alimentación. Se encontró un 9,86 por ciento de prevalencia de conductas asociadas a los trastornos de la alimentación, 12,6 por ciento para las mujeres y 3,49 por ciento para los hombres. Alrededor del 20 por ciento de las mujeres presentan alteraciones de la conducta alimentaria como realización de dietas, y selección de alimentos
Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Bulimia/epidemiologia , Anorexia Nervosa/epidemiologia , Estudantes , Imagem Corporal , Inquéritos sobre Dietas , Prevalência , Catárticos/administração & dosagem , Comportamento AlimentarRESUMO
El presente artículo señala las principales características del enfoque psicosomático, los esquemas de clasificación de las distintas patologías así como las principales teorías consideradas en la expresión somática de una emoción. Se consideran aspectos psicológicos y psicodinámicos involucrados y se intenta contextualizar el síntoma vocal sin base orgánica demostrable en cuanto a su comprensión actual y las bases de la investigación en el área. Se refuerza la idea del trabajo multidisciplinario
Assuntos
Humanos , Distúrbios da Voz/psicologia , Transtornos Psicofisiológicos/diagnóstico , Equipe de Assistência ao Paciente , Medicina Psicossomática/tendências , Transtornos Psicofisiológicos/etiologia , Transtornos Psicofisiológicos/psicologiaRESUMO
30 pacientes mujeres con trastorno de la alimentación de acuerdo a los criterios del DSM IV, 20 con BN y 14 con AN, y 30 controles sanos fueron evaluadas con la escala de alexitimia de la Universidad de Buenos Aires UBA, adaptación de la escala de alexitimia de Toronto TAS, la escala de depresividad de Beck y el test de actitudes allmentarias EAT 40. Se consignó además estado nutricional a través del índice de Masa Corporal IMC y tiempo de evolución de la enfermedad. El promedio de edad fue de 20,2 años, con un promedio de años de evolución de 4,4 años. El IMC fue de 21,39 para las bulímicas y de 17,12 para las anorécticas. El puntaje al EAT fue de 50,3, considerándose positivo para anorexia puntajes de 30 o más. El 55,8 por ciento de la muestra obtuvo un puntaje mayor a 20 en el BDI, positivo para depresividad. En la TAS, el 50 por ciento de las pacientes obtuvo un puntaje T de 60 o más, positivo para alexitimia, comparado con el 0,07 por ciento de los controles sanos. No se encontró diferencias entre AN y BN respecto a la presencia de alexitimia. La alexitimia apareció relacionada a depresividad, 15 de las 17 pacientes alexitírnicas presentaban depresividad versus 5 de las pacientes no alexitímicas. No se encontró relación entre alexitimia y puntaje al EAT, tiempo de evolución de la enfermedad ni estado nutricional