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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Avalia??o qualitativa de cirurgi?es, em imagens tomogr?ficas, do uso de horm?nios de crescimento recombinante (rhGH) em procedimentos de levantamento do assoalho do seio maxilar

De Marco, Ricardo Giacomini 06 March 2017 (has links)
Submitted by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-05-25T15:00:50Z No. of bitstreams: 1 DIS_RICARDO_GIACOMINI_DE_MARCO_PARCIAL.pdf: 425010 bytes, checksum: 70ab63ee01f40dabcc01f10861fb479f (MD5) / Made available in DSpace on 2017-05-25T15:00:50Z (GMT). No. of bitstreams: 1 DIS_RICARDO_GIACOMINI_DE_MARCO_PARCIAL.pdf: 425010 bytes, checksum: 70ab63ee01f40dabcc01f10861fb479f (MD5) Previous issue date: 2017-03-06 / At the back regions of maxilla, often are unable to accommodate dental implants because of thin bone thickness. In these cases, the procedure of lifting the maxillary sinus floor is the viable option to rehabilitate this area. One of the main reasons patients give up treatment is the waiting time between the bone graft and the installation of dental implants (around 6 months). This research sought to use Human Growth Hormone (GH), together with Lyophilized Bovine Bone (Bio-Oss?), in Maxillary Sinus Floor Survey procedures to analyze whether there is a reduction in bone maturation time. In the first phase of the work, three patients were operate bilaterally, and on one side the conventional maxillary sinus survey and on the other side was add Human Growth Hormone (Somatropin). After 3 to 5 months were make Computed tomography of cases operated. The images obtained were assemble in questionnaire format, without identification of the patient, material used, time after surgery and use of GH or not. The questionnaire was forwad to 52 Oral and Maxillofacial Surgeons, by e-mail. At the end of the work, we concluded that growth hormone-enhanced grafts obtained full majority of the evaluators' agreement to install the implants at the time the Topographies were make. Unlike in the group without Growth Hormone, the great majority of the evaluators considered the moment inopportune for implant installation. These results demonstrate positive interference in the quality of the tomographic image, when the increase of the Growth Hormone was make, according to the opinion of the evaluators. Key / Regi?es posteriores de maxila, frequentemente, s?o incapazes de acomodar implantes dent?rios devido a pouca espessura de osso. Nesses casos, o procedimento de levantamento do assoalho do seio maxilar ? a op??o vi?vel para reabilitar essa ?rea. Um dos principais motivos que faz os pacientes desistirem do tratamento ? o tempo de espera entre o enxerto ?sseo e a instala??o dos implantes dent?rios (em torno de 6 meses). Esta pesquisa buscou utilizar o Horm?nio de Crescimento Humano Recombinante (rhGH), juntamente com o Osso Bovino Liofilizado (Bio-Oss?), em procedimentos de Levantamento de Assoalho de Seio Maxilar para analisarmos se h? redu??o no tempo de matura??o ?ssea. Na primeira fase do trabalho, tr?s pacientes foram operados bilateralmente, sendo que, em um lado, foi realizado o levantamento de seio maxilar convencional e, no outro lado, foi acrescentado o rhGH (Somatropina). Entre tr?s a cinco meses, foram realizadas tomografias computadorizada dos casos operados. As imagens obtidas foram montadas em formato de question?rio, sem identifica??o de paciente, material utilizado, tempo p?s-operat?rio e uso ou n?o do rhGH. O question?rio foi encaminhado para cinquenta e dois Cirurgi?es Bucomaxilofaciais e Implantodontistas por e-mail. Ao final do trabalho, conclu?mos que os enxertos com incremento do rhGH obtiveram plena maioria da concord?ncia dos avaliadores em instalar os implantes no momento em que as tomografias foram realizadas. Ao contr?rio, no grupo sem incremento do rhGH, a grande maioria dos avaliadores considerou o momento inoportuno para instala??o dos implantes. Esses resultados demonstram interfer?ncia positiva na qualidade da imagem tomogr?fica, quando realizado o incremento do Horm?nio de Crescimento, conforme a opini?o dos avaliadores.

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