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1.
Stud Health Technol Inform ; 219: 37-43, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26799876

RESUMO

UNLABELLED: In the UNAM Faculty of Odontology, we use a stereoscopic 3D teaching method that has grown more common in the last year, which makes it important to know whether students can learn better with this strategy. The objective of the study is to know, if the 4th year students of the bachelor's degree in dentistry learn more effectively with the use of stereoscopic 3D than the traditional method in Orthodontics. METHODS: first, we selected the course topics, to be used for both methods; the traditional method using projection of slides and for the stereoscopic third dimension, with the use of videos in digital stereo projection (seen through "passive" polarized 3D glasses). The main topic was supernumerary teeth, including and diverted from their guide eruption. Afterwards we performed an exam on students, containing 24 items, validated by expert judgment in Orthodontics teaching. The results of the data were compared between the two educational methods for determined effectiveness using the model before and after measurement with the statistical package SPSS 20 version. The results presented for the 9 groups of undergraduates in dentistry, were collected with a total of 218 students for 3D and traditional methods, we found in a traditional method a mean 4.91, SD 1.4752 in the pretest and X=6.96, SD 1.26622, St Error 0.12318 for the posttest. The 3D method had a mean 5.21, SD 1.996779 St Error 0.193036 for the pretest X= 7.82, SD =0.963963, St Error 0.09319 posttest; the analysis of Variance between groups F= 5.60 Prob > 0.0000 and Bartlett's test for equal variances 21.0640 Prob > chi2 = 0.007. These results show that the student's learning in 3D means a significant improvement as compared to the traditional teaching method and having a strong association between the two methods. CONCLUSION: The findings suggest that the stereoscopic 3D method lead to improved student learning compared to traditional teaching.


Assuntos
Ortodontia/educação , Ensino , Interface Usuário-Computador , Adulto , Feminino , Humanos , Masculino , México , Gravação de Videoteipe , Adulto Jovem
2.
Rev. ADM ; 60(1): 5-13, ene.-feb. 2003. ilus
Artigo em Espanhol | LILACS | ID: lil-350564

RESUMO

El propósito del presente estudio fue la detección de la serotonina en la sutura media palatina durante el proceso inflamatorio causado por la expansión rápida maxilar (ERM). La serotonina juega un papel importante como mediador químico en el proceso inflamatorio agudo, el cual se relaciona especialmente con la permeabilidad vascular y la producción de dolor durante la aplicación de fuerzas ortopédicas que se generan como una respuesta inflamatoria en la sutura media palatina. Al realizarse la ERM se produce la seperación física del maxilar por medio de la aplicación de técnicas que pueden producir una respuesta ortopédica. Estas técnicas se usan en pacientes que necesitan un aumento en el plano transversal del maxilar, principalmente durante la dentición primaria, mixta y en algunas ocasiones en la dentición permanente, de acuerdo con la edad del paciente, creando modificaciones en la sutura media palatina y en otras estructuras craneofaciales que se encuentran relacionadas con el maxilar. Veinticuatro conejos machos de la cepa Nueva Zelanda fueron incluidos en el presente estudio, a los animales se les colocó un expansor modificado para llevar a cabo la ERM. El maxilar se disecó a los 7, 14 y 21 días después que el aparato se inseró en la boca del conejo. Se obtuvieron muestras de tejido del maxilar, se realizó la técnica de inmunohistoquímica indirecta, utilizando un anticuerpo monoclonal de ratón contra la serotonina. La serotonina no se detectó en ninguno de los grupos experimentales


Assuntos
Animais , Coelhos , Serotonina , Técnica de Expansão Palatina/efeitos adversos , Anticorpos Monoclonais , Imuno-Histoquímica/métodos , Maxila , Mediadores da Inflamação/fisiologia , Coelhos
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