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Academic literature on the topic 'Ortodoncia - Diagnóstico, Cefalometría, Cabeza - Radiografía'
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Journal articles on the topic "Ortodoncia - Diagnóstico, Cefalometría, Cabeza - Radiografía"
Cutipa, Willy. "COMPARACIÓN DEL CEFALOGRAMA DE STEINER Y TATIS EN LA DETERMINACIÓN DEL PATRÓN ESQUELETAL." Evidencias en Odontología Clínica 2, no. 2 (December 5, 2017): 44. http://dx.doi.org/10.35306/eoc.v2i2.366.
Full textDissertations / Theses on the topic "Ortodoncia - Diagnóstico, Cefalometría, Cabeza - Radiografía"
Llana, Gagliuffi Jan Helmy. "Variaciones cefalométricas de los ángulos formados por los planos base anterior del cráneo, palatino y mandibular en pacientes adenoideos pre y post quirúrgicos." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2004. https://hdl.handle.net/20.500.12672/1733.
Full textPresently work the variations cephalometrics of the angles was studied formed by the planes base previous of the skull, palatine and Jawbone in 60 adenoid patients that arrived to the service of otorrinolaringología of the Naval Medical Center during the year 2001 who you/they were intervened surgically (adenoidectomía) The lateral cephalometric of the 60 patients was studied with adenoid hipertrofy that were operated two years ago approximately of the adenoides who were selected based on their clinical histories. For it was necessary the gathering of the x-rays lateral surgical pre and the taking of the lateral x-rays after 2 years approximately, that is to say in the year 2003, of the surgical operation. Where one kept in mind the analyses of Steiner and of Schwartz, for it was made it the lines cephalometrics, necessary for the present study, of the following planes. -plane Bases previous of the skull (SN) - Palatine -plane (ENA-ENP) - Jawbone-plane (Go-Gn) Then the angles were located: - Angle SN/ENA-ENP - Angle ENA-ENP/Go-Gn - Angle SN/Go-Gn These angles were traced in the x-rays pre and post adenoidectomia; being that the averages of the angle SN/Go-Gn pre and post surgical they are respectively 39.6º and 36.5º where a significant difference exists (p = 0.00) in the angular variation; the averages of the angle SN/ENA-ENP pre and post surgical they are respectively 8.0º and 7.46º where a significant difference exists (p = 0.035) in the angular variation, and the averages of the angle ENA-ENP/Go-Gn pre and post surgical they are respectively 29.5º and 28.1º where a significant difference exists (p = 0.00) in the angular variation. With regard to the sex significant difference doesn't exist and with regard to the age in the patients of 9 to 11 years were a bigger variation cephalometric among the x-rays pre and post surgical with regard to the other groups . Key words: Variation cephalometric, plane bases previous of the skull, plane palatine, plane jawbone, adenoidectomía, adenoid hipertrofy.
Tesis
Alvarez, Vicuña Sandra Milagros. "Ángulo SN-Frankfort en los diferentes biotipos faciales de los pacientes atendidos en el Servicio de Ortodoncia del Hospital Nacional Hipólito Unanue durante el periodo 2014-2017." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2018. https://hdl.handle.net/20.500.12672/7550.
Full textTesis
Pereira, Neto João Sarmento 1957. "Avaliação da eficacia do posicionador mandibular de Sarmento nas telerradiografias laterais da cabeça." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287928.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo:O objetivo da presente pesquisafoi testar o "Posicionador Mandibular de Sarmento para telerradiografias da cabeça em norma lateral". A hipótese consistiu em verificar a diferença entre as grandezas lineares e angulares pelo método convencional e as com posicionador mandibular. Foram analisadas oito grandezas angulares (SNA, SNB, ANB, FMA, FMlA, IMPA, ANG.Z e PI.Ocl.) e cinco grandezas lineares (AO-BO, AFA, AFP, QT e LS) e o lAF . Os resultados demonstraram significância estatística ao teste t para dados pareados para as grandezas SNB, FMA e PI.OCL, ao nível de p = 0,01 e 0,05. Com base na análise dos resultados obtidos, concluímos que o dispositivo foi efetivo no controle da estabilidade do terço inferior da face, durante as tomadas telerradiografias da cabeça em norma lateral. As grandezas angulares SNB, FMA e PI.Ocl. apresentaram maior variabilidade quando comparadas com as fornecidas pela tomada de raio X pelo método convencional
Abstract: The objective of the present research went to test the "Sarmento's Mandibular Positioner for cephalometric radiography of the head in lateral norm". The hypothesis consisted of verifying the difterence among the linear and angular greatness for the conventional method and the with mandibular positioner. Eight angular measurements were analyzed (SNA, SNB, ANB, FMA, FMIA, IMPA, ANG.l and PLOcL) and five linear (AO-BO, AFA, AFP, QT and LS) and IAF. The results demonstrated statistical significance to the test t for SNB, FMA and PLOCL, at the levei of p = 0,01 and 0,05. With base in the analysis of the obtained results, we concluded that the device was eftective in the control of the stability of the inferior third of the face The angular greatness SNB, FMA and PLOcL they presented larger variability when compared with supplied them for the ray taking X for the conventional method. KEY-WORDS: Cephalometry; cephalostat; mandibular positioner
Doutorado
Ortodontia
Doutor em Radiologia Odontológica
Rivera, Ramos Enith Shirley. "Estudio cefalométrico en niños de 9 años según análisis cefalométrico lateral de Ricketts." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2007. https://hdl.handle.net/20.500.12672/2200.
Full textTesis
Negreiros, Paulo Eduardo. "O efeito sobre as medidas cefalometricas devido à alteração da posição natural da cabeça (PNC) em telerradiografias tomadas em norma lateral." [s.n.], 2000. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290216.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Em 1884, os craniologistas adotaram o plano horizontal de Frankfurt, determinado pelos pontos Pório esquerdo, Pório direito e pelo ponto Infra-orbitário esquerdo, como sendo a referência que define a posição da cabeça enquanto paralela ao solo. Quando do surgimento da cefalometria, adotaram-se inúmeros pontos, linhas e planos de referência utilizados em craniometria, dentre os quais o plano horizontal de Frankfurt, porém somente com o desenvolvimento do cefalostato, em 1931, a validade do emprego dessas referências passou a ser questionada devido à dificuldade de localização dos pontos Pório e do Orbitário e à grande variabilidade interindividual de inclinação desse plano o que gera interpretações duvidosas nas análises cefalométricas nele baseadas. Dessa maneira a Posição Natural da Cabeça (PNC) associada a uma linha de referência extracraniana tornou-se objeto de interesse tanto para a antropologia quanto para a ortodontia por ser um posicionamento estável para as avaliações da estética facial, para o diagnóstico e para o estudo longitudinal do crescimento craniofacial. Este trabalho objetivou estudar as alterações das grandezas cefalométricas angulares e lineares mais comumente utilizadas em cefalometria, quando a posição natural da cabeça (PNC) é modificada durante a tomada da telerradiografia, sua influência no diagnóstico ortodôntico e a confiabilidade e reprodutibilidade da PNC em tomadas radiográficas sucessivas. Analisou-se 180 telerradiografias tomadas em norma lateral de 30 pacientes do sexo feminino com idade média de 21,3 anos obtidas em duas séries de tomadas radiográficas com intervalo de 15 dias entre as séries. Registrou-se em cada série, a posição natural da cabeça (PNC), a PNC acrescida de 5 graus (PNC+5°) e a PNC com flexão de 5 graus (PNC-5°) de cada paciente. Os resultados obtidos demonstraram que as grandezas lineares S-N, ENA-ENP, CO-Gn, Go-Gn, e as grandezas angulares SNA, ANB, PP.GoGn, l.PP, IMPA, 1.1, SN.VER e HF.VER não apresentaram alterações estatisticamente significantes entre as posições estudadas e entre as séries de tomadas radiográficas. As grandezas angulares SNB, SN.GoGn, FMA, SN.PP, Ângulo Z e a grandeza linear Co-Go apresentaram alterações estatisticamente significantes tanto entre as posições quanto entre séries de tomadas radiográficas, porém sem significância do ponto de vista clínico. Concluiu-se que as medidas angulares e lineares avaliadas não apresentaram alterações significantes quando a posição natural da cabeça modificou-se dentro da faixa de variação angular estudada, o que não conduziu a diagnósticos ou interpretações duvidosas. Devido a baixa variação das angulações dos ângulos SN.VER e HF.VER demonstrou-se que a metodologia empregada com a utilização da Unidade Orientadora de Posicionamento, apresentada neste trabalho, permite a reprodutibilidade da posição natural da cabeça com grande confiabilidade dentro de uma faixa de variação da PNC em ± 5°.
Abstract: Em 1884, craniologists adopted the Frankfurt horizontal plane, determined by the left Porion, right Porion and left Orbitale points, as being the reference that defines the head position while parallel to the soil. When of the appearance of the cephalometry, countless points, lines and reference planes were used in craniometry, among them the Frankfurt horizontal plane. However, only with the development of the cephalostat, in 1931, the validity of the employment of those references became questioned due to the difficulty of location of the Porion and Orbitale points and to the great variability of individual inclination of that plane which lead to doubtful interpretations when used for cephalometric analyses. Therefore, the Natural Head Position (NHP) associated with an extracranial reference line became object of so much interest for the anthropology as for the orthodontics due to a stable positioning for the evaluations of the facial aesthetics, diagnosis and for the longitudinal study of the craniofacial growth. This work aimed to study the alterations of angular and linear cephalometrics measurements more commonly used in cephalometry, when the natural head position (NHP) is modified during the taking of cephalometric radiography, its intluence in the orthodontic diagnosis, and the reliability and reproducibility of NHP for successive radiographs. One hundred and eighty cephalometrics radiographs were taken in lateral norm of 30 female patients with age range of 21,3 years old. The X-ray were obtained in two series within 15 days interval among them. In each of the series, the natural head position (NHP), the NHP added of 5 degrees (NHP+5°) and NHP with 5 degrees of flexion (NHP-5°) were registered from each patient. The obtained results demonstrated that the linear measurements S-N, ENA-ENP, CO-Gn, Go-Gn, and the angular measurements SNA, ANB, PP. GoGn, I.PP, IMP A, 1.1, SN. VER and HF. VER did not present statistically significant alterations among the studied positions and the two series of radiographic taken as well. The angular measurements of SNB, SN.GoGn, FMA, SN.PP, Z Angle and the linear measurements Co-Go presented statistically significant alterations even between the positions themselves as in the two series of radiographs taken, however, without significance on the clinical point of view. It was concluded that the angular and linear measurements appraised did not present significant alterations when the natural head position modified within of the angular variation strip studied, which did not lead to doubtful diagnosis or interpretations. Due to low variation of the angulations of the SN.VER and HF.VER angles, it was demonstrated that the methodology used with the employment of the Guiding Unit of Positioning presented in this work, allows the reproducibility of the natural head position with great reliability within at 5° variation strip of NHP.
Mestrado
Mestre em Ortodontia