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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.
1201

Assessing Children’s Performance on the Facial Emotion Recognition Task with Familiar and Unfamiliar Faces: An Autism Study

Unknown Date (has links)
Studies exploring facial emotion recognition (FER) abilities in autism spectrum disorder (ASD) samples have yielded inconsistent results despite the widely-accepted finding that an impairment in emotion recognition is a core component of ASD. The current study aimed to determine if an FER task featuring both unfamiliar and familiar faces would highlight additional group differences between ASD children and typically developing (TD) children. We tested the two groups of 4- to 8-year-olds on this revised task, and also compared their resting-state brain activity using electroencephalogram (EEG) measurements. As hypothesized, the TD group had significantly higher overall emotion recognition percent scores. In addition, there was a significant interaction effect of group by familiarity, with the ASD group recognizing emotional expressions significantly better in familiar faces than in unfamiliar ones. This finding may be related to the preference of children with autism for people and situations which they are accustomed to. TD children did not demonstrate this pattern, as their recognition scores were approximately the same for familiar faces and unfamiliar ones. No significant group differences existed for EEG alpha power or EEG alpha asymmetry in frontal, central, temporal, parietal, or occipital brain regions. Also, neither of these EEG measurements were strongly correlated with the group FER performances. Further evidence is needed to assess the association between neurophysiological measurements and behavioral symptoms of ASD. The behavioral results of this study provide preliminary evidence that an FER task featuring both familiar and unfamiliar expressions produces a more optimal assessment of emotion recognition ability. / Includes bibliography. / Thesis (M.A.)--Florida Atlantic University, 2017. / FAU Electronic Theses and Dissertations Collection
1202

2D/3D face recognition

Unknown Date (has links)
This dissertation introduces our work on face recognition using a novel approach based on creating 3D face model from 2D face images. Together with the pose angle estimation and illumination compensation, this method can be used successfully to recognize 2D faces with 3D recognition algorithms. The results reported here were obtained partially with our own face image database, which had 2D and 3D face images of 50 subjects, with 9 different pose angles. It is shown that by applying even the simple PCA algorithm, this new approach can yield successful recognition rates using 2D probing images and 3D gallery images. The insight gained from the 2D/3D face recognition study was also extended to the case of involving 2D probing and 2D gallery images, which offers a more flexible approach since it is much easier and practical to acquire 2D photos for recognition. To test the effectiveness of the proposed approach, the public AT&T face database, which had 2D only face photos of 40 subjects, with 10 different images each, was utilized in the experimental study. The results from this investigation show that with our approach, the 3D recognition algorithm can be successfully applied to 2D only images. The performance of the proposed approach was further compared with some of the existing face recognition techniques. Studies on imperfect conditions such as domain and pose/illumination variations were also carried out. Additionally, the performance of the algorithms on noisy photos was evaluated. Pros and cons of the proposed face recognition technique along with suggestions for future studies are also given in the dissertation. / by Guan Xin. / Thesis (Ph.D.)--Florida Atlantic University, 2012. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2012. Mode of access: World Wide Web.
1203

Simetria e atratividade facial / Symmetry and facial attractiveness

Silva, Luciana Maria da 18 March 2005 (has links)
A simetria facial foi investigada como fator de atratividade em quatro experimentos. Fotos frontais em preto e branco de faces de homens e mulheres foram manipuladas por computação gráfica para gerar faces simétricas. No Exp. I as faces simétricas foram geradas a partir da reflexão das metades laterais, direita e esquerda, de cada face. Essas faces simétricas e suas respectivas faces naturais foram apresentadas a sujeitos para julgar o quão atrativa elas eram. Os resultados mostraram que faces assimétricas (naturais) foram julgadas como mais atrativas que as simétricas. No Exp. II utilizaram-se as mesmas faces simétricas e naturais do Exp. I, porém, excluindo-se os elementos externos da face por meio de uma moldura elíptica. Essas faces foram apresentadas aos pares e pediu-se para os participantes escolher a mais atrativa, além de julgar seu grau de atratividade. Os resultados mostraram que nenhuma foto simétrica foi julgada como mais atrativa que sua respectiva face natural, bem como as faces naturais foram mais escolhidas que as simétricas. A exclusão dos elementos externos das faces não contribuiu para aumentar o grau de atratividade das mesmas. No Exp. III as faces simétricas foram geradas por técnica de morphing a partir da imagem da face original e a sua respectiva imagem refletida. A apresentação e julgamentos das faces seguiram o modelo do Exp. II. Os resultados mostraram que nenhuma face simétrica obteve escore de atratividade maior que as naturais, mas com relação às escolhas, para faces masculinas houve maior número de escolhas para as faces simétricas. No Exp. IV foram utilizadas as mesmas faces simétricas e naturais do Exp. III, excluindo-se os elementos faciais externos. Os resultados indicaram maior escores de atratividade, bem como um maior número de escolhas das faces simétricas. Comparadas ao Exp. III houve um aumento nos escores de atratividade para as faces simétricas e uma diminuição dos escores para as faces naturais. Conclui-se que a simetria não deve ser considerada como um fator isolado na análise da atratividade facial; relações entre outros elementos podem contribuir para tornar uma face mais atrativa. / The facial symmetry was investigated as attractiveness factor in four experiments. Front pictures in black and white of men\'s and women?s faces were manipulated by graphic computation to create symmetrical faces. In Exp. I, the symmetrical faces were created starting from the lateral half right and left reflection, of each face. Those symmetrical faces and their respective natural faces were presented to people that had to judge how attractive they were. The results showed that asymmetrical faces (natural) were judged as more attractive than the symmetrical ones. In Exp. II, we used the same symmetrical and natural faces of Exp. I, however, being excluded face?s external elements through an elliptic frame. These faces were presented in pairs and we asked for the participants to choose the most attractive, besides judging the attractiveness degree. The results showed that no symmetrical picture was judged as more attractive than its respective natural face, as well as the natural faces were more chosen than the symmetrical ones. The exclusion of the external elements of the faces didn\'t contribute to increase the attractiveness degree of themselves. In Exp. III, the symmetrical faces were created by morphing technique starting from the original face image and its respective reflected image. The presentation and judgments of the faces followed the model of Exp. II. The results showed that no symmetrical face obtained score of larger attractiveness than the natural ones, but regarding the choices, for masculine faces there was larger number of choices for the symmetrical faces. In Exp. IV we used the same symmetrical and natural faces of Exp. III, being excluded the external facial elements. The results indicated larger attractiveness scores, as well as a larger number of choices fore the symmetrical faces. Comparing Exp. IV with Exp. III, we had an increase in the attractiveness scores for the symmetrical faces and a decrease of the scores for the natural faces. We concluded that the symmetry should not be considered as an isolated factor in the facial attractiveness analysis; the relationships among other elements can contribute to turn a more attractive face.
1204

Atratividade facial e cirurgia ortognática: aspectos físicos e emocionais / Facial Attractiveness and Orthognatic Surgery: Emotional and Physical Aspects

Silva, Luciana Maria da 22 April 2009 (has links)
Pessoas que apresentam grandes deformidades dentofaciais podem ter prejuízos sociais, pessoais e emocionais. A cirurgia ortognática é utilizada para correções dessas deformidades, que consequentemente afeta as aparências das faces dos pacientes. Este estudo teve como objetivos: 1) Avaliar amostras de faces da população de Ribeirão Preto, SP e as faces prototípicas provenientes delas, consideradas sem deformidades; 2) Analisar atratividade facial de dez pacientes submetidos a cirurgias ortognáticas nas fases pré e pós-cirúrgicas; ao relacionar suas atratividades aos parâmetros físicos alterados pela cirurgia; e também avaliar as consequências na qualidade de vida, ansiedade e auto-estima destes pacientes. As análises faciais foram frontais e obedeceram aos critérios preconizados na literatura de meios, terços e quintos faciais. A coleta de dados com os pacientes foi feita no CEDEFACE (Centro de Pesquisa e Tratamento das Deformidades Buco-Faciais). Foram obtidas fotografias nas fases pré e pós-cirúrgicas; momentos em que também foram aplicadas escalas de qualidade de vida (WHOQOL bref), de ansiedade (IDATE e Escala Analógica de Humor) e autoestima (Escala de Autoestima de Rosenberg). Dois experimentos foram realizados. Um com as fotos das faces pré e pós-cirúrgicas a fim de avaliar a atratividade facial dos pacientes antes e depois das cirurgias e outro para comparar a atratividade facial dos pacientes com a atratividade de faces prototípicas relativas ao sexo e etnia correspondentes. Nesses experimentos os julgamentos de atratividade foram provenientes de uma amostra de 40 participantes leigos. Os resultados apontaram que: 1) As análises do banco de faces e protótipos apresentaram parâmetros físicos faciais diferentes daqueles apontados na literatura, principalmente na análise dos terços e quintos; 2) A cirurgia ortognática contribuiu para o aumento da atratividade dos pacientes, embora estes ainda considerados menos atrativos que as faces prototípicas. Também foram notadas melhoria na condição psicológica por meio do Whoqol bref e diminuição da ansiedade por meio da Escala Analógica de Humor. Tais resultados apontam para a importância de estudos sobre parâmetros físicos faciais relacionados à melhoria de sua estética e que a cirurgia ortognática para o tratamento de deformidades dentofaciais pode trazer benefícios estéticos e emocionais àqueles que a procuram. / People with salient dentofacial deformities can have social, personal and emotional injury. The orthognathic surgery is used to correct these deformities, and consequently, it affects the facial appearances of the patients. The general aims of this study were: 1) Evaluate samples of faces from a population of Ribeirão Preto, SP and their prototypical faces considered as without deformities; 2) Analyze the facial attractiveness of ten patients before and after being submitted to orthognathic surgery; searching the relationship between the attractiveness and physical parameters modified on the faces by the surgery; and also assessing the effects of this surgery on the quality of life, the anxiety and the self-esteem of these patients. The facial analyses were frontal and from the halves, the thirds and the fifths of the faces. The pictures of faces before and after the orthognathic surgery were from voluntary patients from CEDEFACE (Centro de Pesquisa e Tratamento das Deformidades Buco-Faciais) at Araraquara, SP. Before and after the surgery, these patients also had their quality of life (by WHOQOL bref scale), the anxiety (by IDATE and Escala Analógica de Humor) and the selfesteem (by Escala de Auto-Estima de Rosenberg) evaluated. There were two experiments. From an experiment, forty volunteers judged the attractiveness of the faces pictured before and after the surgery. From the other experiment, the volunteers compared the attractiveness of the patient faces with the attractiveness of the prototypical faces, respectively to their sex and race. The results showed that: 1) The facial analyses of the faces from population sample of Ribeirão Preto, SP, and their prototypical faces indicated physical parameters that differ from the literature, mainly for the facial analyses of the thirds and the fifths 2) The orthognathic surgery contributed to increase the facial attractiveness of the patients, although they were still considered less attractive than the prototypical faces. Improvement in psychological condition, assessed by the Whoqol bref, and anxiety decrement, assessed by the Escala Analógica de Humor, were noticed. These results pointed out the importance to study facial analyses related to the aesthetic improvement, and that the orthognathic surgery to treat dentofacial deformities can bring aesthetic and emotional benefits to the patients.
1205

Julgamento de atratividade facial por mulheres durante o ciclo menstrual / Judgment of facial attractiveness by women during the menstrual cycle

Perin, Cristina 11 August 2014 (has links)
Este projeto teve por objetivo investigar se existem diferenças nos julgamentos de atratividade de faces masculinizadas e feminilizadas entre mulheres durante a etapa folicular tardia e na etapa luteal (fases do ciclo menstrual) e se estas se correlacionam às alterações dos níveis hormonais. Foram incluídas 30 mulheres voluntárias, na faixa etária de 18 a 42 anos com ciclos menstruais regulares, com duração entre 24 e 33 dias, sem uso de anticoncepcional hormonal (AH). Foram utilizados para a avaliação da atratividade facial dois protótipos faciais: um de uma face feminina e outro de face masculina. De cada um desses protótipos foram confeccionadas mais quatro faces, cujos traços de duas foram masculinizados e das outras duas foram feminilizados em diferentes graus. Foram realizadas duas sessões experimentais para cada participante. A primeira sessão foi na etapa folicular tardia do ciclo menstrual e a segunda na etapa luteal do ciclo. Em cada sessão, a participante era instruída a ordenar decrescentemente as faces conforme o quão atraente cada uma lhe parecerá. Em seguida a participante classificava as faces em três grupos: Amigo, Inimigo e Amante. Posteriormente foi colhida a amostra de sangue para posteriores análises dos níveis hormonais. Ou seja, tanto na etapa folicular tardia quanto na luteal, as participantes avaliaram as imagens das faces e doaram uma amostra de sangue. As frequências foram comparadas e verificou-se que para as faces masculinas masculinizadas e a face neutra foram consideradas as mais atraentes na fase folicular tardia e na fase lútea. Na fase folicular tardia, para as faces masculinas, quanto mais masculinizadas elas forem, maior sua pontuação no grupo Amante. Na fase lútea, a face original masculina e todas as faces masculinas masculinizadas foram mais frequentemente classificadas ao grupo Amante, mas a face 50% masculinizada teve um aumento na qualificação de Inimigo. E finalmente, não foi verificada uma correlação entre os níveis hormonais e a preferência por faces mais masculinizadas ou feminilizada. Não foi evidenciada uma mudança significativa na preferência do julgamento das faces; observando-se que existe sempre uma preferência por faces mais masculinizadas para faces masculinas, e preferência por faces mais feminilizadas para faces femininas, independente das fases do ciclo menstrual. / This project aimed to investigate whether there are differences in attractiveness judgments of masculinized and feminized faces by women during the late follicular and the luteal phases (phases of the menstrual cycle) and whether these judgments correlate with hormonal level changes. Thirty women with age between 18 and 42 years old, with regular menstrual cycles lasting between 24 and 33 days, and without use of hormonal contraceptive (AH) were volunteers in this study. Stimuli were images of a female and a male prototypical faces that by computer morphing technique generated other faces with exaggeration of the gender traits by 25% and 50%. Two experimental sessions, the first in the late follicular phase and the second in the luteal phase, were conducted for each participant to judge the attractiveness of the faces, sorting them from the highest to lowest attractive. Finishing this task, the participant classified the faces into three groups: \"Friend\", \"Enemy\" or \"Lover.\" After each session in both menstrual phases blood sample of the participant was collected for further hormone level analysis. The masculinized male face and the original male face were chosen as more attractive in the follicular phase and the late luteal phase. Besides, in the late follicular phase, the more masculinized are the male faces, the higher is their score into the \"Lover\" group. In the luteal phase, also all masculinized and the original male faces were classified more frequently into the Lover group, but also the 50% masculinized male face was more frequently classified into the Enemy group. And finally, there was no correlation between hormone levels and preference for more masculinized or more feminized faces. Then, there is no evidence that hormonal levels change the face preferences. There was always a preference for masculinized faces to male faces, and preference for feminized faces for female faces, regardless of the menstrual cycle phases.
1206

Face in Japanese culture : A study on the importance of face and the relation to shame, based on the example of Japanese living in the Stockholm/Uppsala region

Steinfurth, Karolin January 2019 (has links)
This bachelor thesis conducts an anthropological study of the definition of face within Japanese culture through literature as well as by Japanese people in the age group 20 to 30 years living in the Stockholm/Uppsala region. It further investigates how face is related to shame and, in which conditions shame is felt by the above-mentioned target group. Having analyzed when shame occurs, the study further enquires how these Japanese people avoid shameful situations and how this relates to their face. As a core theme to this thesis will be an analysis of the conducted interviews with the help of Japanese anthropologist Takie Lebra’s definition of shame. This thesis will demonstrate how these Japanese informants are influenced, how they react to shaming situations and how it is related to their face.
1207

Context-based semi-supervised joint people recognition in consumer photo collections using Markov networks

Brenner, Markus January 2014 (has links)
Faces, along with the personal identities behind them, are effective elements in organizing a collection of consumer photos, as they represent who was involved. However, the accurate discrimination and subsequent recognition of face appearances is still very challenging. This can be attributed to the fact that faces are usually neither perfectly lit nor captured, particularly in the uncontrolled environments of consumer photos. Unlike, for instance, passport photos that only show faces stripped of their surroundings, Consumer Photo Collections contain a vast amount of meaningful context. For example, consecutively shot photos often correlate in time, location or scene. Further information can also be provided by the people appearing in photos, such as their demographics (ages and gender are often easier to surmise than identities), clothing, or the social relationships among co-occurring people. Motivated by this ubiquitous context, we propose and research people recognition approaches that consider contextual information within photos, as well as across entire photo collections. Our aim of leveraging additional contextual information (as opposed to only considering faces) is to improve recognition performance. However, instead of requiring users to explicitly label specific pieces of contextual information, we wish to implicitly learn and draw from the seemingly coherent content that exists inherently across an entire photo collection. Moreover, unlike conventional approaches that usually predict the identity of only one person’s appearance at a time, we lay out a semi-supervised approach to jointly recognize multiple peoples’ appearances across an entire photo collection simultaneously. As such, our aim is to find the overall best recognition solution. To make context-based joint recognition of people feasible, we research a sparse but efficient graph-based approach that builds on Markov Networks and utilizes distance-based face description methods. We show how to exploit the following specific contextual cues: time, social semantics, body appearances (clothing), gender, scene and ambiguous captions. We also show how to leverage crowd-sourced gamified feedback to iteratively improve recognition performance. Experiments on several datasets demonstrate and validate the effectiveness of our semisupervised graph-based recognition approach compared to conventional approaches.
1208

Investigation of the two types of cellular connections of Schlemm's canal inner wall cells and their role in giant vacuole and pore formation by serial block-face scanning electron microscopy

Lai, Julia 18 June 2016 (has links)
PURPOSE: To determine, under flow conditions, whether reduced connections between Schlemm’s canal (SC) inner wall (IW) and juxtacanalicular tissue (JCT) cells play a role in giant vacuole (GV) formation; and whether decreased amount of cell margin overlap between adjacent IW cells promotes paracellular pore formation using serial block-face scanning electron microscopy (SBF-SEM). METHODS: Normal human eyes were immersion-fixed (0 mmHg, N=2) or perfusion-fixed (15 mmHg, N=1). Frontal and radial sections of SC were processed for SBF-SEM. IW and JCT cells, GVs, and pores were 3D-reconstructed. In each IW cell, total number of connections with underlying JCT cells/matrix was determined. Total cell margin length (TCML) and zero-overlap length (ZL) of each IW cell were measured to calculate percent zero-overlap length (PZL=ZL/TCML). All data were compared between the eyes fixed at 0 and 15 mmHg. RESULTS: Total number of IW/JCT connections in individual IWs significantly decreased in the eye fixed at 15 mmHg (33±5, N=5 cells) compared to those fixed at 0 mmHg (189±12, N=4 cells, p<0.001). The summed GV volume in individual cells significantly increased in the eye fixed at 15mmHg (218.03±19.65 μm3) compared to those fixed at 0 mmHg (82.33±27.22 μm3, p=0.0043). PZL increased 26.68% (p=0.001) in the eye fixed at 15mmHg vs. those fixed at 0mmHg, and all paracellular pores were found only in regions where the overlap length was 0 μm. CONCLUSIONS: Cellular connections between IW/JCT and IW/IW cells play a role in GV and pore formation in normal human eyes under flow conditions. Our results provide a baseline for future comparison with primary open angle glaucoma eyes.
1209

Face analysis using polynomials / Analyse faciale basée polynômes

Bordei, Cristina 03 March 2016 (has links)
Considéré comme l'un des sujets de recherche les plus actifs et visibles de la vision par ordinateur, de la reconnaissance des formes et de la biométrie, l'analyse faciale a fait l'objet d'études approfondies au cours des deux dernières décennies. Le travail de cette thèse a pour objectif de proposer de nouvelles techniques d'utilisation de représentations de texture basées polynômes pour l'analyse faciale.<br>La première partie de cette thèse est dédiée à l'intégration de bases de polynômes dans les modèles actifs d'apparence. Nous proposons premièrement une manière d'utiliser les coefficients polynomiaux dans la modélisation de l'apparence. Ensuite, afin de réduire la complexité du modèle nous proposons de choisir et d'utiliser les meilleurs coefficients en tant que représentation de texture. Enfin, nous montrons comment ces derniers peuvent être utilisés dans un algorithme de descente de gradient.<br>La deuxième partie de la thèse porte sur l'utilisation des bases polynomiales pour la détection des points/zones d'intérêt et comme descripteur pour la reconnaissance des expressions faciales. Inspirés par des techniques de détection des singularités dans des champ de vecteurs, nous commençons par présenter un algorithme utilisé pour l'extraction des points d'intérêt dans une image. Puis nous montrons comment les bases polynomiales peuvent être utilisées pour extraire des informations sur les expressions faciales. Puisque les coefficients polynomiaux fournissent une analyse précise multi-échelles et multi-orientation et traitent le problème de redondance efficacement ils sont utilisés en tant que descripteurs dans un algorithme de classification d'expression faciale. / As one of the most active and visible research topic in computer vision, pattern recognition and biometries, facial analysis has been extensively studied in the past two decades. The work in this thesis presents novel techniques to use polynomial basis texture representations for facial analysis.<br> The first part of this thesis, is dedicated to the integration of polynomial bases in the Active Appearance Models - a set of statistical tools that proved to be very efficient in modeling faces. First we propose a way to use the coefficients obtained after polynomial projections in the appearance modeling. Then, in order to reduce model complexity we proposed to select and use as a texture representation the strongest polynomial coefficients. Finally we show how in addition to the texture representation polynomial coefficients can be used in a gradient descent algorithm since polynomial decomposition is equivalent to a filter bank.<br>The second part of the thesis concems the use of the polynomial bases for interesting points and areas detection and as a descriptor for facial expression recognition. We start by presenting an algorithm used for accurate image keypoints localization inspired by techniques of singularities detection in a vector field. Our approach consists in two major steps: the calculation of an image vector field of normals and the keypoint selection within the field both presented in a multi-scale multi resolution scheme. Finally we show how polynomial bases can be used to extract informations about facial expressions. Polynomial coefficients are used as descriptors in an facial expression classification algorithm.
1210

Avalia??o das altera??es em tecidos moles e duros de pacientes submetidos ? cirurgia ortogn?tica combinada utilizando cefalometria computadorizada

Becker, Ot?vio Emmel 02 March 2012 (has links)
Made available in DSpace on 2015-04-14T13:30:06Z (GMT). No. of bitstreams: 1 437502.pdf: 1046273 bytes, checksum: 9cb9d6a7a6e8669da406b3daccd4a8a0 (MD5) Previous issue date: 2012-03-02 / OBJECTIVE: Evaluate the differences and the correlation between the points in hard and soft tissues of the facial profile and between measures in pharyngeal airway and jaw movements, in the pre-operative and post-operative at short and medium term, in Class III patients who underwent bimaxillary orthognathic surgery (maxillary advancement and mandibular setback).MATERIALS AND METHODS: Preoperative radiographs (T1), post-operative up to 3 months (T2) and post-operative after 6 months up to 12 months (T3) of 58 patients with Class III facial pattern who underwent bimaxillary orthognathic surgery were scanned, digitized and inserted into Dolphin Imaging software v. 3D 11.0 (Dolphin Imaging Software, Canoga Park, Calif?rnia, EUA) for evaluation of 11 points of hard and soft tissue of facial profile in relation to True Vertical Line (TVL) and for the measurement of five measures of pharyngeal airway and two point of hard tissue in relation to n-perp Line. All tracings were performed by a single calibrated examiner. The Student t-test for paired samples was used to determine if significant differences between preoperative and postoperative periods and differences between the two postoperative periods to evaluate recurrence. To verify a significant correlation between hard and soft tissue points for the same periods, were used the Pearson correlation coefficient. To verify a significant correlation between the measures of pharyngeal airway and the points in hard tissue in relation to n-perp line for the same periods, it was used the Spearman correlation coefficient. The results were considered at a maximum significance level of 5% and assessed using SPSS ? software, version 18.0.RESULTS: Significant changes are identified in all points of soft and hard tissue between preand and two postoperative periods (T2-T1, T3-1) and relapse (T3-T2) in points Nasal Projection, Lower Incisor, Lower lip, Pog and Pog '. The correlation observed between the movements of all points between all periods is greater in mandible than in maxilla. Similarly the correlations between hard and soft tissue, the correlations only between hard tissues and only between soft tissues present a strong correlation between the mandibular points in T2-T1 and T3-T1. In maxilla was identified correlation between A x Upper Lip in T2-T1. In relation to airways, it was identified significant changes in all measures of nasalpharynx, oropharynx and hypopharynx evaluated between preoperative and two postoperative periods (T2-T1, T3- T1). In general, measures increased in nasal and oropharynx and decreased in hypopharynx and lower oropharynx at the short and medium term. Correlation between jaw movements and change in measures of airway was found between nasopharynx and maxillary advancement and between low oropharynx and mandibular setback. Correlation between the movements in only airway measures, in T2-T1 and T3-T1, were found between measures anatomically near located. Among the periods (T3-T2), there were no significant correlations between any measures.CONCLUSIONS: The correlation between hard and soft tissues in the mandible is greater than the maxilla. The correlations only between hard tissues and only between soft tissues follow a pattern similar to the correlations between hard and soft tissues. The results of this work are similar to results found in works about monomaxilar surgeries for both the maxilla and the mandible. The influence of the movements in hard tissues is restricted to the soft tissues of the same jaw, although there are exceptions. Correlation between jaw movements and change in measures of airway was found between nasopharynx and maxillary advancement and between low oropharynx and mandibular setback. Correlation in airway were found between measures anatomically near located, demonstrating the importance of pharyngeal muscles in this relationship. / OBJETIVO: Avaliar as diferen?as e verificar a correla??o existente entre pontos de tecido mole e pontos de tecido duro do perfil facial e entre medidas em vias a?reas far?ngeas e os movimentos nos ossos gn?ticos, nos per?odos pr? operat?rio e p?s operat?rios, a curto e m?dio prazo, em pacientes com padr?o facial Classe III, submetidos ? cirurgia ortogn?tica (CO) bimaxilar (combinada-avan?o de maxila e recuo de mand?bula).MATERIAL E METODOS: Tele radiografias pr?-operat?rias (T1), p?s-operat?rias de at? 3 meses (T2) e p?s-operat?rias entre 6 e 12 meses (T3) de 58 pacientes com padr?o facial Classe III que foram submetidos ? CO bimaxilar foram escaneadas, digitalizadas e inseridas no software Dolphin Imaging 3D v. 11.0 (Dolphin Imaging Software, Canoga Park, Calif?rnia, EUA) para avalia??o de 11 pontos de tecido duro e mole do perfil facial em rela??o ? Linha Vertical Verdadeira (LVV) e mensura??o de 5 medidas de vias a?reas far?ngeas e 2 de tecido duro em rela??o ? Linha N-perp (n-perp). Todos os tra?ados foram realizados por um ?nico avaliador calibrado. O Teste t-Student para amostras pareadas foi utilizado para verificar se houve diferen?a significativa entre os per?odos pr? e p?soperat?rios e diferen?a entre os dois tempos p?s-operat?rios para avaliar o grau de acomoda??o dos tecidos. Para verificar correla??o significativa existente entre os pontos de tecido duro e os pontos de tecido mole para os mesmos per?odos utilizou-se o coeficiente de correla??o de Pearson e entre as medidas de vias a?reas far?ngeas e as de tecido duro em rela??o ? linha n-perp o coeficiente de correla??o de Spearman. Os resultados foram considerados a um n?vel de signific?ncia m?ximo de 5% e avaliados atrav?s do software SPSS?, vers?o 18.0.RESULTADOS: Identificam-se mudan?as significativas em todos os pontos de tecido mole e duro entre o per?odo pr? e os dois per?odos p?s-operat?rios (T2-T1, T3-1) e grau significante de acomoda??o dos tecidos (T3-T2) nos pontos de Proje??o nasal, Incisivo Inferior, L?bio Inferior, Pog e Pog. A correla??o verificada entre os movimentos dos pontos entre todos os per?odos ? maior na mand?bula do que na maxila. De forma semelhante ?s correla??es entre tecido duros e moles, as correla??es entre apenas tecidos duros e apenas tecidos moles apresentam, em T2-T1 e T3-T1, forte correla??o entre os pontos mandibulares. Na maxila foi identificada correla??o entre A x L?bio Superior em T2-T1. Em rela??o ?s vias a?reas far?ngeas, identificou-se mudan?as significativas em todas as medidas de naso, oro e hipofaringe avaliadas entre o per?odo pr? e os dois per?odos p?s-operat?rios (T2-T1, T3-T1). De modo geral, as medidas de naso e orofaringe aumentaram e as de hipofaringe e orofaringe baixa diminuiram a curto e m?dio prazo. Correla??o entre os movimentos dos ossos gn?ticos e a mudan?a nas medidas das vias a?reas far?ngeas foi encontrada entre nasofaringe e avan?o maxilar e entre orofaringe baixa e recuo mandibular. Correla??o entre os movimentos apresentados apenas entre medidas de vias a?reas, em T2-T1 e T3-T1, foram encontradas entre as medidas situadas anatomicamente pr?ximas. J? entre os per?odos (T3-T2), n?o foram observadas correla??es significantes entre quaisquer medidas.CONCLUS?ES: A correla??o entre tecidos duros e moles ? maior na mand?bula do que na maxila. As correla??es apenas entre tecidos duros e apenas entre tecidos moles seguem um padr?o semelhante ?s correla??es encontradas entre tecidos duros e moles. Os resultados deste trabalho assemelham-se aos resultados encontrados em trabalhos sobre cirurgias monomaxilares, tanto para maxila quanto para mand?bula, sendo que a influ?ncia dos movimentos de tecidos duros fica, em sua maioria, restrita aos tecidos moles do mesmo maxilar, embora haja exce??es. As correla??es encontradas entre os movimentos nos ossos gn?ticos e as modifica??es nas vias a?reas s?o do aumento da Nasofaringe com o avan?o maxilar e da diminui??o da Orofaringe Baixa com o recuo mandibular a curto e m?dios prazos. Correla??es foram encontradas nas medidas de vias a?reas entre as quais est?o localizadas com proximidade anat?mica, demonstrando a import?ncia da musculatura da faringe nessa rela??o.

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