Search results for "Mexico city"
showing 7 items of 7 documents
Malocclusion and TMJ disorders in teenagers from private and public schools in Mexico City.
2011
Objective: To identify, among Mexican teenagers from public and private schools, the frequency, severity of malocclusion and orthodontic treatment needs, and their possible association with temporomandibular joint disorders. Material and Methods: Fifteen-year-old students were recruited from public and private schools. Clinical findings were registered as follows: oral hygiene status with the Oral Hygiene Index-Simplified, malocclusion using the Dental Aesthetic Index (DAI), and TMJ disorders following WHO criteria. Negative binomial and logistic regression models were constructed for data analysis. Results: A total of 249 fifteen-year old students were included in the study (118 female 47.…
First Published Record of a Neurosurgical Procedure on the North American Continent, Mexico City, by Pedro Arias de Benavides, 1561:Secretos de Chiru…
2000
The first published account of a neurosurgical intervention performed on the North American continent is described. The operation took place in Mexico City in 1561. The neurosurgical intervention was performed by a Spanish surgeon, Pedro Arias de Benavides, on a 13-year-old boy who had sustained head trauma that caused an open depressed cranial fracture and exposed the cerebrum. A description of this case was first published in Valladolid, Spain, 6 years after the event, in a book entitled Secretos de Chirurgia ("Secrets of Surgery").
Study on frequency of dental developmental alterations in a MEXICAN school-based population
2016
Background The aim of this study was to know the distribution of dental developmental alterations in the population requesting stomatological attention at the Admission and Diagnosis Clinic of our institution in Mexico City. Material and Methods We reviewed the archives and selected those files with developmental dental alterations. Analyzed data were diagnoses, age, gender, location and number of involved teeth. Results Of the 3.522 patients reviewed, 179 (5.1%) harbored 394 developmental dental alterations. Of them, 45.2% were males and 54.8% were females with a mean age of 16.7 years. The most common were supernumeraries, dental agenesia and dilaceration. Adults were 30.7% of the patient…
La atenuación de los marcadores de control de contacto en PRESEEA: un estudio comparativo entre España y México
2018
En el presente trabajo se estudia el valor atenuante de los marcadores conversacionales de control de contacto en el corpus de entrevistas PRESEEA en dos ciudades de España (Valencia y Madrid) y dos de México (Monterrey y México D. F.). A partir de la inclusión de las intervenciones tanto del entrevistador como del entrevistado, se observan una serie de tendencias que resultan comunes en estas dos variedades geográficas. Los resultados muestran que el entrevistado atenúa para proteger su imagen, mientras que el entrevistador utiliza esta estrategia pragmática como medio para conseguir información de su interlocutor. Esta recopilación de datos se puede dar a través de la petición directa de …
La propuesta sobre educación de la comisión para el estudio de los problemas españoles (1945)
2019
En este artículo se analiza y transcribe el texto redactado por un grupo de destacados profesores y pedagogos españoles exiliados, con especial atención a su contextualización. El grupo integraba la ponencia sobre educación de la Comisión de estudio de los problemas españoles, impulsada por la Unión de Profesores Españoles en el Extranjero. El documento final fue publicado en 1945 en la ciudad de México D.F.: en los Talleres tipográficos de B. Costa Amic, y ocupa 23 páginas. Se trata de un auténtico programa de actuación a llevar a cabo tras la restauración de la República en España, que en esas fechas tras finalizar la guerra en Europa, se pensaba cercana. A group of Spanish leading teache…
Needles made of human bones from Xochimilco
2018
Abstract This paper presents the study of needles made of long human bones (Homo sapiens) from the region of Xochimilco, now a quarter in Mexico City, which in pre-Hispanic times was one of the cities conquered by the Aztec empire. We shall discuss the development and use of these needles, as well as the identification of the raw material they are made of and a proposal about what people these bones were obtained from: captives or craftsmen's relatives? The archaeological household at San Pedro, in Xochimilco, presents in its early stages (12th century–15th century) stone technology, and in its final stages (16th century, around the time of arrival of the Spanish conquerors) the possible us…
Dental developmental alterations in patients with dilacerated teeth.
2018
Background The aim of this study was to record and analyze all DDAs associated to dilacerated teeth in patients attending the clinics of the Postgraduate Division, Facultad de Odontología, UNAM in Mexico City. Material and Methods Orthopantomograms from all patients seeking for stomatological attention in our institution were reviewed and those cases of dilaceration were separated. Age, gender, diagnosis, location, involved teeth and associated DDAs were recorded and analyzed. Results From 6,340 patients, 99 (1.6%) harbored 125 dilacerated teeth. Of them, 45 (45.5%) showed one or more DDAs. The most frequently detected DDAs were hypodontia, enamel pearls, taurodontism and microdontia. Concl…