Influencia del nivel de inserción ósea del diente soporte en el desplazamiento de PPR de extremidad libre mandibular asociada al implante oseointegrado

The rehabilitation with mandibular distal extension removable partial dentures (DERPD) is complex and the use of implants has been improving the functioning of this approach. The insertion bony level around of the last support tooth is an aggravating factor, since it can harm the longevity of the treatment. Thus, the aim of this research was to evaluate the displacement tendency of a mandibular DERPD associated to an implant, with different insertion bony levels and different connections between the RPD and the support tooth, by finite element analysis. Eight models were made: MA - DERPD, incisal rest, no bony loss; MB - DERPD, distal plate, no bony loss; MC - DERPD, incisal rest, no bony loss, with implant and ERA system; MD - DERPD, distal plate, no bony loss, with implant and ERA system; ME - DERPD, incisal rest, bony loss; MF - DERPD, distal plate, bony loss; MG - DERPD, incisal rest, bony loss, with implant and ERA system; MH - DERPD, distal plate, bony loss, with implant and ERA system. Loads of 50 N in each peak were applied. Displacement maps were obtained and showed that implant favors this association and the bony loss harms the prognostic of the prosthesis. It is concluded that: the introduction of the implant with ERA system reduced the displacement tendency of the tooth and supporting structures; introduction of distal plate reduced the movement tendency of the support tooth; the decrease of the periodontal support didn't influence significantly the displacement tendency of the models with distal plate distal, but it influenced the models with distal incisal rest.

A Linguagem, o Texto e o Documento no contexto da Ciência da Informação

The relation among the concepts text, document and information is discussed, with the aim of clarifying the concept of document, with a focus in the field of economic information organization and management. A document is a medium in which information is recorded and manifested. A document is, thus, material, has a purpose, can be organized and treated for its improved dissemination, and has a specific subject and context.

Evaluación del soporte social: análisis de literatura en la base de datos ebsco, búsqueda académica entre 2001 y 2011

This study aimed to analyze the literature on social support in the database ebsco-Academic Search between 2001 and 2011. It was based on a search for items that had the words "social support" and "scale" in the abstract. The sample consisted of 107 studies. It was verified in the results that there were fluctuations in the number of studies over the years. Aging & Mental Health and Quality of Life Research were the journals which published the most. On the country of residence of the first author, the countries that dominated were United States and England. 34 different instruments were used to assess social support. We also observed a lack of information concerning the psychometric qualities in the instruments descriptions.