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| Author(s): |
Carla Moreto Santos
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | Ribeirão Preto. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Odontologia de Ribeirão Preto (PCARP/BC) |
| Defense date: | 2009-05-22 |
| Examining board members: |
Simone Cecilio Hallak Regalo;
Esem Pereira Cerqueira;
Vanderlei Luiz Gomes;
Helio Ferraz Porciuncula;
Mathias Vitti
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| Advisor: | Simone Cecilio Hallak Regalo |
| Abstract | |
Modern population has been frequently suffered by problems like stomatognatic system´s dysfunction and collapse. Primitive populations study could be important to evaluate the real interference that modern habits of life have on this system functioning. This study aims at comparing data measured in 38 Xingu Villages indigenous people and 38 render urban concerning at clinical evaluation of facial measurement, vertical dimension occlusion, muscular palpation, physiological occlusal erosion, maximal opening mouth limit, habits of life, Fonseca Clinical Index; and referring at electromyographic (EMG) assessment of masticatory muscles during postural and dynamic activities. A correlation assessment of these data between indigenous and white people was realized. Clinical assessment data showed be facial measurements similar in indigenous and white volunteers, high pain to muscle palpation in white people, high levels of physiological occlusal erosion in indigenous than white, maximal opening mouth limit reduced in indigenous, life habits more health in indigenous, higher Fonseca Clinical Index in white volunteers. Electromyographic data revealed reduced activity in indigenous group than white people. Correlation between data revealed that in white group the wearing facets is related to vertical dimension occlusion reducing and in indigenous this correlation do not exist, the facets wearing is related to age in both groups, white people revealed a muscle palpation pain increasing while EMG reduced and in indigenous this correlation was inverted, the correlation between EMG and maximal opening mouth limit was conversely proportional to white and do not occurred in indigenous, there was no correlation between EMG and Fonseca Index in both groups. Is possible to conclude that Xingu Villages indigenous recruiting less motor units and muscle fibers to acquit their functions when compared to white people, and revealed less signals of stomatognatic system dysfunction than white. This fact is being related to health and efficient training of this musculature enable by a feed based on fibers and proteins and absence of stress. Job in Xingu villages is simply subsistence life way, and respect among the people during all Xingu indigenous life provides longing model health of stomatognatic system. (AU) | |