Orientador: Dirceu Barnabé Raveli / Banca: Ary dos Santos Pinto / Banca: Lídia Parsekian Martins / Banca: João Sarmento Pereira Neto / Banca: Maria Beatriz Borges de Araújo Magnani / Resumo: A presente investigação buscou determinar os padrões de perfil facial de preferência da população brasileira, mediante coleta de opiniões utilizando a rede mundial de computadores - Internet, verificando se existem diferenças nos resultados obtidos, quando avaliados os diferentes grupos, distribuídos por profissão, faixa etária, gênero, grau de instrução e região do país, além de observar se existe diferença na opinião dos indivíduos consultados, quanto ao fato de ter utilizado ou não aparelho ortodôntico. Com essa finalidade, foram construídos seis questionários digitais, cada um contendo sete silhuetas, as quais corresponderam a perfis faciais andrógenos, com variações na posição da maxila, da mandíbula, do nariz, dos lábios e do mento, modificando-se, dessa forma, os ângulos nasolabial, mentolabial, a projeção dos lábios e do mento, variando o perfil de côncavo a convexo. As opiniões de 1574 respondentes foram analisadas, estaticamente, o que possibilitou a definição do perfil facial preferido e do rejeitado da população consultada, ficando estabelecido que a silhueta preferida apresentou perfil reto, e a rejeitada, padrão estético facial com perfil convexo e deficiência mandibular. Quando analisadas as variáveis em questão, concluiu-se que existe associação significativa entre a imagem, preferida ou rejeitada, em relação às variáveis estudadas (p<0,05), exceto para a região do país, cujas imagens não apresentaram qualquer associação significativa à determinada região (p<0,05). / Abstract: The present investigation seeks to determine the standards of facial profile preferred by the Brazilian population, by means of collecting opinions utilizing the world wide net computers - Internet, verifying if there are differences between the results obtained when different groups are evaluated, distributed by profession, age range, gender, degree of instruction and region of the country, besides observing if there is difference in the opinion of the consulted individuals, by the fact of having used orthodontic devices or not. With this purpose, six digital surveys were constructed, each one containing seven silhouettes, which corresponded to androgymous facial profiles, with variations in the position of the maxilla, mandible, nose, lips and chin, modifying, this way, the nasolabial and mentolabial angles, the projection of lips and chin, ranging the profile from concave to convex. The opinions of 1574 replyings were analyzed, statistically, by which made possible to define the preferred and the rejected facial profile of the consulted population, being established that the preferred silhouette presented a straight profile, and the rejected one, a facial pattern with convex profile and mandibular deficiency. When analyzed the variations in question, it was concluded that significant association between the image exists, preferred or rejected, in comparison to the variations studied (p<0,05), except for the region of the country, whose images had not presented any significant association to a determined region (p<0,05). / Doutor

INTRODUCTION: Evaluate how esthetic smiling variables influence laypeople’s preference for a step or no step between the incisal edges of the maxillary central and lateral incisors, and how subject demographics may modify such an association. METHODS: Sixteen smiling photographs with differing esthetic variable combinations were duplicated and paired. One of each pair was modified to create a 1mm step between the maxillary central and lateral incisors, while the other picture had no step. Photos were shown to 200 laypeople, and they were asked to choose which smile they prefer for each pairing. RESULTS: 99% of the subjects did not realize any difference between the photos in each pairing. 63% of the subjects surveyed in this study were college educated. For ten out of sixteen esthetic combinations, people preferred no step between central and lateral incisors. People younger than 43 years of age preferred no step for four esthetic categories. In one of the esthetic categories, males preferred a step, while females preferred no step. Caucasians and other racial backgrounds preferred no step for one esthetic combination. For two categories, people who did not attend college preferred a step, and those who did attend college preferred no step. CONCLUSIONS: More people prefer no step between maxillary central and lateral incisors, and patient background and demographics have little-to-no influence on this preference.

Made available in DSpace on 2014-06-11T19:33:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-11-24Bitstream added on 2014-06-13T21:05:57Z : No. of bitstreams: 1 hahn_l_dr_arafo.pdf: 820851 bytes, checksum: b6b957bbdf19589e0651474a4b13fec7 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A presente investigação buscou determinar os padrões de perfil facial de preferência da população brasileira, mediante coleta de opiniões utilizando a rede mundial de computadores - Internet, verificando se existem diferenças nos resultados obtidos, quando avaliados os diferentes grupos, distribuídos por profissão, faixa etária, gênero, grau de instrução e região do país, além de observar se existe diferença na opinião dos indivíduos consultados, quanto ao fato de ter utilizado ou não aparelho ortodôntico. Com essa finalidade, foram construídos seis questionários digitais, cada um contendo sete silhuetas, as quais corresponderam a perfis faciais andrógenos, com variações na posição da maxila, da mandíbula, do nariz, dos lábios e do mento, modificando-se, dessa forma, os ângulos nasolabial, mentolabial, a projeção dos lábios e do mento, variando o perfil de côncavo a convexo. As opiniões de 1574 respondentes foram analisadas, estaticamente, o que possibilitou a definição do perfil facial preferido e do rejeitado da população consultada, ficando estabelecido que a silhueta preferida apresentou perfil reto, e a rejeitada, padrão estético facial com perfil convexo e deficiência mandibular. Quando analisadas as variáveis em questão, concluiu-se que existe associação significativa entre a imagem, preferida ou rejeitada, em relação às variáveis estudadas (p<0,05), exceto para a região do país, cujas imagens não apresentaram qualquer associação significativa à determinada região (p<0,05). / The present investigation seeks to determine the standards of facial profile preferred by the Brazilian population, by means of collecting opinions utilizing the world wide net computers - Internet, verifying if there are differences between the results obtained when different groups are evaluated, distributed by profession, age range, gender, degree of instruction and region of the country, besides observing if there is difference in the opinion of the consulted individuals, by the fact of having used orthodontic devices or not. With this purpose, six digital surveys were constructed, each one containing seven silhouettes, which corresponded to androgymous facial profiles, with variations in the position of the maxilla, mandible, nose, lips and chin, modifying, this way, the nasolabial and mentolabial angles, the projection of lips and chin, ranging the profile from concave to convex. The opinions of 1574 replyings were analyzed, statistically, by which made possible to define the preferred and the rejected facial profile of the consulted population, being established that the preferred silhouette presented a straight profile, and the rejected one, a facial pattern with convex profile and mandibular deficiency. When analyzed the variations in question, it was concluded that significant association between the image exists, preferred or rejected, in comparison to the variations studied (p<0,05), except for the region of the country, whose images had not presented any significant association to a determined region (p<0,05).

Made available in DSpace on 2014-06-11T19:33:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-09-06Bitstream added on 2014-06-13T19:44:07Z : No. of bitstreams: 1 farias_rl_dr_arafo.pdf: 979418 bytes, checksum: 09fd574874b5c9aa5ebfb6e93c121a8b (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O presente trabalho evidencia a importância da análise do perfil facial na área do diagnóstico, planejamento e prognóstico de casos em ortodontia ou especialidades afins. Os conceitos subjetivos de beleza e a grande variedade de tipos faciais dificultam a seleção de modelos que possam representar padrões de referências. Apesar da visão subjetiva possuir elevado poder na tomada de decisões, outros critérios de avaliação podem contribuir com mais objetividade nas interpretações da estética facial. O estudo enfoca o assunto de três maneiras: a) obtém uma amostra de 120 indivíduos de ambos os gêneros, entre as idades de 08 e 23 anos, residentes na cidade de João Pessoa, Paraíba, escolhidos aleatoriamente; b) apresenta um instrumento clínico denominado Paquímetro do Perfil Facial, destinado a tomada de medidas verticais e horizontais em pontos localizados no perfil mole e testado em todos os participantes da amostra, investigando possíveis diferenças entre gêneros; c) avalia esteticamente, através de fotografias, os 120 perfis faciais da amostra, submetendo-as ao julgamento de um comitê de avaliadores, com o propósito de verificar a influência de valores subjetivos na identificação das características faciais. / This study present the importance of facial profile analysis in diagnosis, treatment planning and prognostic of Orthodontic cases. Because of the subjective concepts of beauty and the number of facial types, it is difficult to select a reference pattern of facial attractiveness. Although the subjective view is important and influence decisions, other aspects of facial esthetics contribute with more objectivity in the assessments. This study focused some of these aspects: a) a sample of 120 individuals, of both genders, between 8 and 23 years old, were randomly selected in the city of João Pessoa, Paraíba. c) photographies of 120 facial profiles were assessed by a panel composed by specialists and lay people, to assess the influence of subjective values in facial attractiveness. Some of the results presented: a) the measurements found with the caliper were highly influenced by the nose; b) this influence was higher in the horizontal than vertical measurements; c) a difference between gender and age was found; d) an increasement of growth pattern was found in males than in females; e) the differences between genders were more evident in older individuals of the sample. f) the male profiles were more convex than the female profiles; g) the concordance intra and inter examiner were not high; h) maxillae and mandibular aspects were easily assessed; j) aspects of facial and dentoalveolar height were most difficult to assess; k) the facial caliper was coherent with the functional purpose.

Made available in DSpace on 2014-06-11T19:24:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-02-21Bitstream added on 2014-06-13T19:10:20Z : No. of bitstreams: 1 rodrigues_cdt_me_arafo.pdf: 1007694 bytes, checksum: 511e67ee8c6a6729c9bf1567a84a4cd0 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O presente estudo se propôs a avaliar o grau de percepção da atratividade do sorriso em função dos seguintes fatores: variações das normas de beleza, conhecimento dos avaliadores e enquadramento fotográfico. Alterações digitais foram realizadas nos sorrisos de fotografias faciais de dois indivíduos de sexos distintos, a fim de enquadrá-las nas normas estéticas estabelecidas pela literatura. Após as alterações, as fotografias foram cortadas em âmbito bucal para que os sorrisos também fossem avaliados neste enquadramento. Para cada enquadramento foram criados 11 sorrisos: uma do sorriso ideal controle (I) (sorriso ideal segundo normas consideradas) e 10 variações individuais de cada uma das normas consideradas a saber: 1) Desvio de linha média- 2mm (LM2) e 3 mm (LM3); 2) Linha do sorriso- linha do sorriso reta (LSR) e linha do sorriso reversa (LSRV); 3) Angulação incisivos laterais- 10º para mesial (A10m) e 10º para distal (A10d); 4) Diastema: 0.5mm e 1mm e 5) Proporção dental- proporção de Alber e proporção de Platão, totalizando 44 fotografias. Estas foram avaliadas individualmente por 4 examinadores, 2 especialistas em dentística e 2 leigos, utilizando a escala visual analógica (VAS), em duas sessões de análise. Puderam ser observadas diferenças entre avaliações feitas por dentistas e leigos. Para algumas fotografias a atratividade do sorriso se modificou quando avaliado este nos diferentes enquadramentos. Foi observado que o sorriso ideal controle, de ambos sexos e âmbitos de avaliações, mostrou maior atratividade que os sorrisos com variações nas normas estéticas. Os sorrisos que continham grandes diastemas e linha do sorriso reta ou invertida obtiveram maior prejuízo da atratividade do sorriso. As três proporções matemáticas (Alber, Platão e Proporção Áurea) determinaram elevados níveis de atratividade... . / The objective of the present study was to evaluate the perception degree of the smile attractiveness due to the following factors: variations of beauty patterns, knowledge of the examiners and photographic framing. Digital alterations were made in facial photographs of 2 individuals of both sexes in order to fit them into the esthetical patterns established by the literature. After the alterations, the photographs focused the mouth so as the smiles could also be evaluated in this framing. For each framing, eleven smiles were created: one of the control ideal smile (I) (ideal smile according to the patterns considered) and 10 individual variations of each one of the patterns considered, as follows: 1) midline deviation - 2mm (LM2) and 3 mm (LM3); 2) Smile line - straight smile line (LSR) and inverted smile line (LSRV); 3) Lateral incisors angulation - 10º towards mesial (A10m) and 10º towards distal (A10d); 4) Diastema: 0.5mm and 1mm and 5) Dental proportion - Alber's proportion and Plato's proportion, totaling 44 photographs, which were individually evaluated by 4 examiners, 2 specialists in operative dentistry and 2 laypeople, using the analogical visual scale (VAS), in 2 sessions of analysis. Differences could be observed between the evaluations made by dentists and laypeople. The smile attractiveness has changed for some photographs when they were evaluated in the different framing alterations. It was possible to observe that the control ideal smile of both sexes and different evaluation ambits showed a more intense attractiveness than the smiles with variations of the esthetical patterns. Large diastemas and also straight or inverted smile lines were the conditions which strongly harmed the smile attractiveness. The three mathematical proportions (Alber's, Plato's and The Golden Proportion) determined high levels of... (Complete abstract, click electronic address below).

Magister Scientiae - MSc / The aim of this project was to compare the shear bond strengths of three light cure orthodontic adhesive resins with three different stainless steel molar brackets. / South Africa

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Abstract ESTHETIC PREFERENCES FOR MAXILLARY INCISOR LABIOLINGUAL INCLINATION ACROSS RACES by Elvi Marie Barcoma, D.D.S. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Dentistry at Virginia Commonwealth University Virginia Commonwealth University, 2015 Major Director: Bhavna Shroff, D.M.D., M.Dent.Sc, Program Director, Orthodontics Objective: To determine if people of different racial backgrounds prefer different amounts of maxillary incisor labiolingual inclination from a smiling profile view. Materials and Methods: An electronic survey was created with smiling profile images of an African-American female and a White female with varying degrees of maxillary incisor labiolingual inclination. Images were ranked from most attractive to least attractive. Results: There was no statistically significant difference in the overall preference for maxillary incisor labiolingual inclination between African-American and White evaluators or between genders. The estimated optimal incisal inclination across races was -8.1°. Conclusions: There was no clinically significant difference in the estimated optimal inclination across races or between genders. The average of the top three maxillary incisor inclinations ranged between -10° and -5°. The majority of evaluators preferred retroclined maxillary incisors over proclined maxillary incisors.