Avaliação ultra-sonográfica do crescimento facial pré-natal
Ano de defesa: | 2008 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Pontifícia Universidade Católica do Rio Grande do Sul
Porto Alegre |
Programa de Pós-Graduação: |
Não Informado pela instituição
|
Departamento: |
Não Informado pela instituição
|
País: |
Não Informado pela instituição
|
Palavras-chave em Português: | |
Link de acesso: | http://hdl.handle.net/10923/360 |
Resumo: | This study has the objective of evaluate the measurements of fetal cephalometrics, in the midsagittal plan, from images generated by ultra sonograms, in order to allow a better understanding of the mechanism of prenatal growth. The transversal sample consisted of 120 ultrasonographic images from healthy embryos of caucasian ancestry, in single gestation, between the 17ª and 35ª weeks. Angular measurements had been carried through that evaluated five variables: the maxillary position in relation to the anterior cranial base (SNMx), the mandibular position in relation to the anterior cranial base (SNMd), the intermaxillary distance difference to intermaxillary referring to Nasion (MxNMd), the mandible growth direction – Y-axis angle (NSGn) and the tegumental facial profile convexity (G'SnPog'). The averages and shunting line-standard for each variable were described and statistical tests were applied, that evaluated the compatibility of the obtained measures as well as the correlations between these and the gestational ages. The data had been analyzed with statistical software SPSS 15,0 (Chicago, IL, the USA) and Excel for Windows 2007 (Microsoft Corp., Redmond, WA, the USA). The results had indicated that three, of the five studied variables, had presented statistical significant correlations with the advance of the gestational age. From the results, it was concluded that, during the observed fetal period, the mandible grew, on average, more than what the maxilla, having as reference the anterior cranial base. There was a reduction of the intermaxilar sagittal difference and the convexity of the tegumental facial profile. The measurements related to the maxillary position and the Y-axis angle of mandibular growth had not presented correlations with the gestational age. |
id |
PUCR_e51b9e479327d803dd5d9dc4d763df34 |
---|---|
oai_identifier_str |
oai:repositorio.pucrs.br:10923/360 |
network_acronym_str |
PUCR |
network_name_str |
Repositório Institucional PUCRS |
repository_id_str |
|
spelling |
Cardon, StefanMarchioro, Ernani Menezes2011-12-27T14:13:59Z2011-12-27T14:13:59Z2008http://hdl.handle.net/10923/360This study has the objective of evaluate the measurements of fetal cephalometrics, in the midsagittal plan, from images generated by ultra sonograms, in order to allow a better understanding of the mechanism of prenatal growth. The transversal sample consisted of 120 ultrasonographic images from healthy embryos of caucasian ancestry, in single gestation, between the 17ª and 35ª weeks. Angular measurements had been carried through that evaluated five variables: the maxillary position in relation to the anterior cranial base (SNMx), the mandibular position in relation to the anterior cranial base (SNMd), the intermaxillary distance difference to intermaxillary referring to Nasion (MxNMd), the mandible growth direction – Y-axis angle (NSGn) and the tegumental facial profile convexity (G'SnPog'). The averages and shunting line-standard for each variable were described and statistical tests were applied, that evaluated the compatibility of the obtained measures as well as the correlations between these and the gestational ages. The data had been analyzed with statistical software SPSS 15,0 (Chicago, IL, the USA) and Excel for Windows 2007 (Microsoft Corp., Redmond, WA, the USA). The results had indicated that three, of the five studied variables, had presented statistical significant correlations with the advance of the gestational age. From the results, it was concluded that, during the observed fetal period, the mandible grew, on average, more than what the maxilla, having as reference the anterior cranial base. There was a reduction of the intermaxilar sagittal difference and the convexity of the tegumental facial profile. The measurements related to the maxillary position and the Y-axis angle of mandibular growth had not presented correlations with the gestational age.Este estudo teve como objetivo avaliar medidas cefalométricas fetais, no plano médio sagital, a partir de imagens geradas por ultra-sonografia, de forma a possibilitar uma melhor compreensão do mecanismo de crescimento pré-natal. A amostra transversal constituiu-se de 120 imagens ultra-sonográficas de fetos saudáveis de ascendência caucasiana, em gestações únicas, no período entre a 17ª e a 35ª semana VIU. Foram realizadas medições angulares que avaliaram cinco variáveis: a posição maxilar em relação à base anterior do crânio (SNMx), a posição mandibular em relação à base anterior do crânio (SNMd), a diferença intermaxilar com referência em Násio (MxNMd), a direção de crescimento da mandíbula – ângulo do eixo Y (NSGn) e a convexidade do perfil facial tegumentar (G’SnPog’). Descreveram-se as médias e desvios-padrão para cada variável e aplicados testes estatísticos que avaliaram a reprodutibilidade das medidas obtidas assim como as correlações entre estas e as idades gestacionais. Os dados foram analisados com o software SPSS 15. 0 (Chicago, IL, USA) e Excel para Windows 2007 (Microsoft Corp., Redmond, WA, USA). Os resultados indicaram que três, das cinco variáveis estudadas, apresentaram correlações estatisticamente significantes com o avanço da idade gestacional. A partir dos resultados obtidos, conclui-se que, durante o período fetal observado, a mandíbula cresceu, em média, mais do que a maxila, tendo como referência a base anterior do crânio. Houve redução da diferença sagital intermaxilar e da convexidade do perfil facial tegumentar. As medidas relativas à posição maxilar e ao ângulo do eixo Y de crescimento mandibular não apresentaram correlações com a idade gestacional.Made available in DSpace on 2011-12-27T14:13:59Z (GMT). No. of bitstreams: 2 000412663-0.pdf: 790888 bytes, checksum: 33993606c35eb137132bc4bb1fb39580 (MD5) license.txt: 581 bytes, checksum: 44ea52f0b7567232681c6e3d72285adc (MD5)Pontifícia Universidade Católica do Rio Grande do SulPorto AlegreODONTOLOGIAORTODONTIAORTOPEDIA FACIALULTRASONOGRAFIA PRÉ-NATALDIAGNÓSTICO PRÉ-NATALDESENVOLVIMENTO FETALDESENVOLVIMENTO MAXILOFACIALFACE - CRESCIMENTO E DESENVOLVIMENTOAvaliação ultra-sonográfica do crescimento facial pré-natalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisPontifícia Universidade Católica do Rio Grande do SulFaculdade de OdontologiaPrograma de Pós-Graduação em OdontologiaMestrado2008porreponame:Repositório Institucional PUCRSinstname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSinfo:eu-repo/semantics/openAccessORIGINAL000412663-0.pdfTexto Completoapplication/pdf790888repositorio.pucrs.br/jspui/bitstream/10923/360/1/000412663-0.pdf33993606c35eb137132bc4bb1fb39580MD51LICENSElicense.txttext/plain581repositorio.pucrs.br/jspui/bitstream/10923/360/2/license.txt44ea52f0b7567232681c6e3d72285adcMD52TEXT000412663-0.pdf.txt000412663-0.pdf.txtExtracted texttext/plain106850repositorio.pucrs.br/jspui/bitstream/10923/360/3/000412663-0.pdf.txteff5785cc37de30be913c30db02e3a64MD5310923/3602017-09-28 11:05:35.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ório InstitucionalPRI |
dc.title.pt_BR.fl_str_mv |
Avaliação ultra-sonográfica do crescimento facial pré-natal |
title |
Avaliação ultra-sonográfica do crescimento facial pré-natal |
spellingShingle |
Avaliação ultra-sonográfica do crescimento facial pré-natal Cardon, Stefan ODONTOLOGIA ORTODONTIA ORTOPEDIA FACIAL ULTRASONOGRAFIA PRÉ-NATAL DIAGNÓSTICO PRÉ-NATAL DESENVOLVIMENTO FETAL DESENVOLVIMENTO MAXILOFACIAL FACE - CRESCIMENTO E DESENVOLVIMENTO |
title_short |
Avaliação ultra-sonográfica do crescimento facial pré-natal |
title_full |
Avaliação ultra-sonográfica do crescimento facial pré-natal |
title_fullStr |
Avaliação ultra-sonográfica do crescimento facial pré-natal |
title_full_unstemmed |
Avaliação ultra-sonográfica do crescimento facial pré-natal |
title_sort |
Avaliação ultra-sonográfica do crescimento facial pré-natal |
author |
Cardon, Stefan |
author_facet |
Cardon, Stefan |
author_role |
author |
dc.contributor.author.fl_str_mv |
Cardon, Stefan |
dc.contributor.advisor1.fl_str_mv |
Marchioro, Ernani Menezes |
contributor_str_mv |
Marchioro, Ernani Menezes |
dc.subject.por.fl_str_mv |
ODONTOLOGIA ORTODONTIA ORTOPEDIA FACIAL ULTRASONOGRAFIA PRÉ-NATAL DIAGNÓSTICO PRÉ-NATAL DESENVOLVIMENTO FETAL DESENVOLVIMENTO MAXILOFACIAL FACE - CRESCIMENTO E DESENVOLVIMENTO |
topic |
ODONTOLOGIA ORTODONTIA ORTOPEDIA FACIAL ULTRASONOGRAFIA PRÉ-NATAL DIAGNÓSTICO PRÉ-NATAL DESENVOLVIMENTO FETAL DESENVOLVIMENTO MAXILOFACIAL FACE - CRESCIMENTO E DESENVOLVIMENTO |
description |
This study has the objective of evaluate the measurements of fetal cephalometrics, in the midsagittal plan, from images generated by ultra sonograms, in order to allow a better understanding of the mechanism of prenatal growth. The transversal sample consisted of 120 ultrasonographic images from healthy embryos of caucasian ancestry, in single gestation, between the 17ª and 35ª weeks. Angular measurements had been carried through that evaluated five variables: the maxillary position in relation to the anterior cranial base (SNMx), the mandibular position in relation to the anterior cranial base (SNMd), the intermaxillary distance difference to intermaxillary referring to Nasion (MxNMd), the mandible growth direction – Y-axis angle (NSGn) and the tegumental facial profile convexity (G'SnPog'). The averages and shunting line-standard for each variable were described and statistical tests were applied, that evaluated the compatibility of the obtained measures as well as the correlations between these and the gestational ages. The data had been analyzed with statistical software SPSS 15,0 (Chicago, IL, the USA) and Excel for Windows 2007 (Microsoft Corp., Redmond, WA, the USA). The results had indicated that three, of the five studied variables, had presented statistical significant correlations with the advance of the gestational age. From the results, it was concluded that, during the observed fetal period, the mandible grew, on average, more than what the maxilla, having as reference the anterior cranial base. There was a reduction of the intermaxilar sagittal difference and the convexity of the tegumental facial profile. The measurements related to the maxillary position and the Y-axis angle of mandibular growth had not presented correlations with the gestational age. |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008 |
dc.date.accessioned.fl_str_mv |
2011-12-27T14:13:59Z |
dc.date.available.fl_str_mv |
2011-12-27T14:13:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10923/360 |
url |
http://hdl.handle.net/10923/360 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Pontifícia Universidade Católica do Rio Grande do Sul Porto Alegre |
publisher.none.fl_str_mv |
Pontifícia Universidade Católica do Rio Grande do Sul Porto Alegre |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional PUCRS instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) instacron:PUC_RS |
instname_str |
Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) |
instacron_str |
PUC_RS |
institution |
PUC_RS |
reponame_str |
Repositório Institucional PUCRS |
collection |
Repositório Institucional PUCRS |
bitstream.url.fl_str_mv |
repositorio.pucrs.br/jspui/bitstream/10923/360/1/000412663-0.pdf repositorio.pucrs.br/jspui/bitstream/10923/360/2/license.txt repositorio.pucrs.br/jspui/bitstream/10923/360/3/000412663-0.pdf.txt |
bitstream.checksum.fl_str_mv |
33993606c35eb137132bc4bb1fb39580 44ea52f0b7567232681c6e3d72285adc eff5785cc37de30be913c30db02e3a64 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1747679332534321152 |