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:

Submitted by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-06-30T17:56:18Z No. of bitstreams: 1 DIS_ROBERTA_ALENCASTRO_AVILA_PARCIAL.pdf: 118749 bytes, checksum: dc5aeca744ebbdf64a56379812249ac5 (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-06-30T17:56:27Z (GMT) No. of bitstreams: 1 DIS_ROBERTA_ALENCASTRO_AVILA_PARCIAL.pdf: 118749 bytes, checksum: dc5aeca744ebbdf64a56379812249ac5 (MD5) / Made available in DSpace on 2017-06-30T17:56:37Z (GMT). No. of bitstreams: 1 DIS_ROBERTA_ALENCASTRO_AVILA_PARCIAL.pdf: 118749 bytes, checksum: dc5aeca744ebbdf64a56379812249ac5 (MD5) Previous issue date: 2017-01-20 / Introduction: The objective of this work was through a prospective cohort analysis evaluate possible correlations between periimplantar bone loss of lower fixed implants (PTFIs) and their respective distribution of bilateral occlusal contacts, maximum bite force (FMM), area occlusal contacts of left and right lateral movements, their relation with the antagonist arch and the presence or absence of provisional fixed prosthesis. Materials and Methods: This convenience sample consisted of 20 (twenty) patients with lower PTFIs who were followed for one year, after the installation of the prosthesis. In the two data collections the FMM measurement was performed, the occlusal contacts distribution was measured through the T-Scan III device and a Cone Beam computed tomography was ordered to evaluate the periimplant bone loss. For the measurement of bone loss, a comparison was made between the initial and second moments. After this process the results of periimplant bone loss were correlated and compared with the other data obtained. The statistical analysis performed to evaluate bone loss of implants was the Friedman test and Wilcoxon test, Mann-Whitney comparisons test, the Spearman correlations test and Student's T-test. Results: The main results were: 1) the implants do not differentiate in relation to periimplant bone loss; 2) there was no significant correlation of bone loss with FMM, right and left laterality and the distribution of contacts in maximum intercuspal position; 3) in comparison between bone loss of patients with full dentures and partially edentulous, they showed no statistically significant difference, as well as in patients who received provisional full prosthesis and those who did not receive. Conclusion: Bone loss appears to occur similarly between all implants, sides, and regions. FMM, R and L laterality, MIH contact distribution, and the antagonist arcade do not appear to interfere with periimplant bone remodeling. The preliminary results of this study suggest that there is no need for provisioning in inferior restorations, since there were no differences in bone loss between patients who received and did not receive fixed provisional. / Introdu??o: O objetivo deste trabalho foi atrav?s de uma an?lise tipo coorte prospectivo, avaliar as poss?veis rela??es existentes entre a perda ?ssea periimplantar de pr?teses totais fixas implantossuportadas inferiores (PTFIs) e sua respectiva distribui??o de contatos oclusais bilaterias, for?a m?xima de mordida (FMM), ?rea de contatos oclusais nos movimentos de lateralidade esquerda e direita, sua rela??o com arcada antagonista e presen?a ou n?o de pr?tese fixa provis?ria. Materiais e M?todos: A amostra de conveni?ncia foi constitu?da por 20 pacientes portadores PTFIs inferiores, e foram acompanhados por um per?odo de um ano, ap?s a instala??o da pr?tese. Nas duas coletas de dados foi realizada a medi??o da FMM, medi??o da distribui??o dos contatos oclusais atrav?s do aparelho T-Scan III e solicitado uma tomografia computadorizada Cone Beam para avalia??o da perda ?ssea periimplantar. Para mensura??o da perda ?ssea, foi realizada a compara??o entre as tomadas iniciais e no segundo momento. Ap?s, os resultados de perda ?ssea periimplantar foram correlacionados e comparados com os demais dados obtidos. A an?lise estat?stica realizada para avaliar perda ?ssea dos implantes, lados e regi?es foi o teste de Friedman e teste de Wilcoxon, para compara??es teste de Mann-Whitney e para as correla??es teste de Spearman e teste T de Student. Resultados: Os principais resultados foram: 1) os implantes n?o se diferenciam em rela??o a perda ?ssea periimplantar; 2) n?o houve correla??o significativa de perda ?ssea com FMM, lateralidade D e E e a distribui??o de contatos em MIH; 3) na compara??o entre perda ?ssea de pacientes com antagonista PT e parcialmente ed?ntulos, n?o mostrou diferen?a estatisticamente significativa, assim como em pacientes que receberam protocolo provis?rio e os que n?o receberam. Conclus?o: A perda ?ssea parece ocorrer de forma semelhante entre todos os implantes, lados e regi?es. A FMM, a lateralidade D e E, a distribui??o de contatos em MIH e a arcada antagonista n?o parecem interferir na remodela??o ?ssea periimplantar. Os resultados preliminares deste estudo sugerem que n?o h? necessidade de provisionaliza??o em protocolos inferiores, visto que n?o houve diferen?as de perda ?ssea entre os pacientes que receberam e n?o receberam provis?rio fixo.