Submitted by Nivaldo Melo (nivaldo.melo@ufvjm.edu.br) on 2015-11-19T12:29:13Z No. of bitstreams: 2 priscilla_barbosa_diniz.pdf: 1599201 bytes, checksum: 14d7b94ab7bbb735435870e67fd8c9cd (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-11-19T14:04:12Z (GMT) No. of bitstreams: 2 priscilla_barbosa_diniz.pdf: 1599201 bytes, checksum: 14d7b94ab7bbb735435870e67fd8c9cd (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Made available in DSpace on 2015-11-19T14:04:12Z (GMT). No. of bitstreams: 2 priscilla_barbosa_diniz.pdf: 1599201 bytes, checksum: 14d7b94ab7bbb735435870e67fd8c9cd (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Previous issue date: 2014 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / Este trabalho, composto por dois artigos, teve por objetivo estudar a associa??o entre fun??o mastigat?ria e seus fatores determinantes. Explorar a rela??o entre fun??o mastigat?ria (for?a de mordida, performance mastigat?ria, limiar de degluti??o) e suas poss?veis associa??es entre as condi??es bucais (bruxismo, c?rie, m? oclus?o, DTM) e corporais de crian?as (IMC). O primeiro cap?tulo ? uma revis?o sistem?tica que objetivou verificar a influ?ncia do bruxismo do sono sobre a for?a de mordida e avaliar qualitativamente a consist?ncia metodol?gica dos estudos publicados na literatura mundial. O segundo artigo ? um estudo transversal realizado com 59 crian?as de quatro a 12 anos de idade atendidas na cl?nica de odontopediatria da Universidade Federal dos Vales do Jequitinhonha e Mucuri, em Diamantina (Brasil). Objetivou-se verificar a associa??o entre as condi??es bucais, corporais e a performance masigat?ria. No final do primeiro estudo, conclui-se que apesar do maior n?mero de relatos n?o houve diferen?a na for?a de mordida entre os grupos, as metodologias apresentam inconsistentes. S?o necess?rios novos estudos que relacionem o bruxismo do sono e for?a de mordida. E no segundo artigo as crian?as em fase de denti??o dec?dua apresentam pior performance mastigat?ria do que crian?as em fase de denti??o mista e permanente. Al?m disso, quanto maior o n?mero de dentes cavitados, pior foi a performance mastigat?ria. O comprometimento da fun??o mastigat?ria pode facilitar o diagnostico ao identificar crian?as com perdas dent?rias e les?es cariosas que, por sua vez, pode estar associado a outros problemas como altera??es no estado nutricional infantil e disfun??es temporomandibulares / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2014. / ABSTRACT This work, consisting of two articles, aimed to study the association between masticatory function and its determinants. Explore the relationship between masticatory function (bite force, masticatory performance, swallowing threshold) and the possible association between oral conditions (bruxism, caries, malocclusion, DTM) and body of children (BMI). The first chapter is a systematic review aimed to assess the influence of sleep bruxism on the bite force and qualitatively assess the methodological consistency of the studies published in the literature. The second article is a cross-sectional study with 59 children aged four to 12 years old attending the pediatric dentistry clinic at the Federal University of the Jequitinhonha and Mucuri, in Diamantina (Brazil). This study aimed to investigate the association between oral conditions, body and masigat?ria performance. At the end of the first study, it is concluded that despite the increased number of reports no difference in bite force between the groups, the methodologies have inconsistent. Further research correlating sleep bruxism and bite force. And in the second article children in deciduous dentition have worse masticatory performance than children in mixed and permanent dentition. Furthermore, the higher the cavitation number of teeth, chewing performance was worst. The impairment of masticatory function may facilitate the diagnosis by identifying children with tooth loss and caries lesions which, in turn, may be associated with other problems such as changes in nutritional status and temporomandibular disorders. KEYWORDS:

Linha de pesquisa: Epidemiologia e controle das doen?as bucais. / ?rea de concentra??o: Odontopediatria. / Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-01-09T17:58:21Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) debora_souto_souza.pdf: 1070377 bytes, checksum: 562fbb6f4882bd48d44c79a12642d975 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-01-10T13:23:52Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) debora_souto_souza.pdf: 1070377 bytes, checksum: 562fbb6f4882bd48d44c79a12642d975 (MD5) / Made available in DSpace on 2017-01-10T13:23:52Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) debora_souto_souza.pdf: 1070377 bytes, checksum: 562fbb6f4882bd48d44c79a12642d975 (MD5) Previous issue date: 2016 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Funda??o de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG) / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Objetivo: Avaliar a associa??o entre condi??es bucais, limiar de degluti??o e performance mastigat?ria de crian?as pr?-escolares. Metodologia: Um estudo transversal foi realizado com uma amostra composta por 127 crian?as entre tr?s e cinco anos de idade. O fluxo salivar, a presen?a de c?rie cavitada na regi?o posterior, o n?mero de dentes presentes e o n?mero de unidades oclusais foram as condi??es bucais avaliadas. Al?m disso, foram analisados o n?mero de ciclos mastigat?rios at? a degluti??o, o tamanho mediano da particular no limiar de degluti??o e na performance mastigat?ria. Essas avalia??es foram conduzidas utilizando um material teste (Optocal), que foi processado pela t?cnica de peneiragem e o tamanho mediano da part?cula (X50) foi avaliado pela equa??o de Rosin-Rammler. A an?lise dos dados foi realizada utilizando-se o programa Statistical Package for the Social Sciences (SPSS) para Windows, vers?o 22.0 e incluiu a descri??o de frequ?ncia das vari?veis, teste de correla??o de Spearman, an?lise de regress?o linear simples e m?ltipla. Resultados: Considerando o n?mero de ciclos como vari?vel dependente, somente o tamanho mediano das part?culas no limiar de degluti??o permaneceu associado a esta vari?vel (p<0,001). O tamanho mediano das part?culas na performance mastigat?ria (p<0,001) e o n?mero de ciclos (p<0,001) foram associados ao tamanho mediano das part?culas no limiar de degluti??o quando esta vari?vel foi considerada dependente. Utilizando o tamanho mediano das part?culas na performance mastigat?ria como vari?vel dependente, o n?mero de dentes (p<0,001) e o tamanho mediano das part?culas no limiar de degluti??o (p<0,001) foram as vari?veis que permaneceram associadas. Conclus?o: Um maior n?mero de ciclos mastigat?rios foi associado a um menor tamanho mediano da part?cula no limiar de degluti??o e o tamanho mediano da part?cula no limiar de degluti??o foi associado ? performance mastigat?ria e ao n?mero de ciclos mastigat?rios. Um arco dent?rio mais completo e um menor tamanho mediano da part?cula no limiar de degluti??o foram associados a uma melhor performance mastigat?ria. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Odontologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / Aim: Assess the association between oral conditions swallowing threshold and masticatory performance of preschool children. Methods: A cross-sectional study was performed with 127 children between three and five years old. The oral conditions evaluated were salivary flow, the presence of cavitated caries in posterior teeth, the number of teeth and the number of occlusal units. In addition, we analyzed the number of masticatory cycles to swallowing, particularly the median size in the threshold swallowing and masticatory performance. These evaluations were conducted using a test material (Optocal), which was processed by sieving technique and the median particle size (X50) was evaluated by the equation of Rosin-Rammler. Data analysis was performed using the Statistical Package for Social Sciences (SPSS) for Windows, version 22.0 and included a description of variables frequency, Spearman correlation test, analysis of simple and multiple linear regression. Results: Considering the number of cycles as the dependent variable, only the median particle size in the swallowing threshold remained associated with this variable (p <0.001). The median particle size in the masticatory performance ( p <0.001) and the number of cycles (p <0.001) were associated with median particle size in swallowing threshold when this variable was considered to be dependent. Using the median particle size of the masticatory performance as the dependent variable, the number of teeth (p <0.001) and the median particle size in swallowing threshold (p <0.001) were the variables that remained associated. Conclusion: A larger number of masticatory cycles was associated with a lower median particle size in the swallowing threshold, the median particle size in the swallowing threshold was associated with masticatory performance and the number of masticatory cycles. A fuller dental arch and a lower median particle size in the swallowing threshold were associated with a better masticatory performance.