Quantitative methods for assessing tongue force
Métodos quantitativos para avaliação da força de língua
Renata Maria Moreira Moraes Furlan; Amanda Freitas Valentim; Andréa Rodrigues Motta; Márcio Falcão Santos Barroso; Cláudio Gomes da Costa; Estevam Barbosa de Las Casas
Abstract
For several years, researchers have been looking for methods to quantify tongue force and a lot of devices were constructed for this purpose. The purpose of this study is to present a critical literature review about the devices to quantify tongue strength. Thirty devices were found. They were grouped into four different categories: mouthpiece containing sensors (n=9), sensors attached on teeth surface or on palatal plates (n=8), bulbs filled with some fluid and connected to a pressure sensor (n=7) and other technologies (n=8). These methods can, potentially, help speech-language pathologists in the orofacial myology evaluation, making the diagnosis of tongue force more reliable. Some of them present disadvantages such as not being sensitive enough to small changes in force, difficulties in positioning reproducibility and other specific points. The large variation in maximum and average strength/pressure values are related to the large diversity of the methods, which use different technologies.
Keywords
Resumo
Por muitos anos, pesquisadores têm procurado métodos para quantificar a força da língua e muitos instrumentos foram construídos para este fim. O objetivo deste trabalho é apresentar uma revisão crítica da literatura sobre instrumentos para quantificar a força de língua. Os 30 aparelhos encontrados foram agrupados em quatro diferentes categorias: bocal contendo sensores (n=9), sensores fixados nos dentes, palato ou em placas palatais (n=8), bulbos preenchidos com fluidos e conectados a sensores de pressão (n=7) e outras tecnologias (n=8). Esses instrumentos podem, potencialmente, auxiliar o fonoaudiólogo na avaliação miofuncional orofacial, fazendo com que o diagnóstico de força da língua seja mais preciso. Alguns aparelhos apresentam desvantagens, tais como não serem sensíveis a pequenas mudanças de força, dificuldades na reprodutibilidade do posicionamento e outros pontos específicos. A grande variação de valores de força/pressão máxima e média encontrados relaciona-se à grande diversidade dos métodos, que empregam diferentes tecnologias.
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References
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Submitted date:
11/04/2011
