Avaliação da influência do espaço negativo na estética, durante o sorriso
Carregando...
Arquivos
Data
2003-09-08
Autores
Ritter, Daltro Enéas [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
Foram medidos os espaços bilaterais existentes entre os dentes da arcada superior e as comissuras labiais, chamados de espaço negativo, e verificada sua influência na estética durante o sorriso. A amostra constituiu-se de 60 fotografias de sorriso forçado, de 30 indivíduos do sexo masculino e 30 do sexo feminino, entre 18 e 25 anos de idade. Essas fotos foram avaliadas, quanto à estética, por dois ortodontistas e dois leigos à odontologia, através de uma escala visual análoga. Mediu-se, em cada fotografia de sorriso, os espaços negativos direito e esquerdo, em milímetros e em proporção em relação à amplitude do sorriso. Os dados foram verificados quanto à significância estatística (p=0,05). Verificou-se que o espaço negativo médio da amostra foi de 6,68l1,99mm e de 9,6l2,56% em relação à amplitude do sorriso, para cada lado da arcada, não havendo assimetrias significativas estatisticamente entre os lados direito e esquerdo. O espaço negativo apresentou-se maior estatisticamente nos indivíduos do sexo masculino quando medido em milímetros (7,08l2,24mm- masculino; 6,28l1,62mm- feminino) (p=0,028), mas igual estatisticamente ao sexo feminino quando medido em proporção à amplitude do sorriso (9,94l2,24%- masculino; 9,26l1,61%- feminino). Os doze indivíduos com menores espaços negativos (G1), em proporção à amplitude do sorriso, comparados com os doze de maiores espaços negativos (G2), não apresentaram diferença estatística quanto à avaliação estética (p=0,110). Concluiu-se que o espaço negativo isoladamente não influenciou na avaliação estética das fotografias de sorriso na presente amostra, tanto para os ortodontistas como para os leigos.
The purpose of this study was to measure and verify the esthetic influence during smile of the bilateral space between the upper posterior teeth and the corner of the lips, known as the negative space. The sample was constituted of 60 forced smile pictures, obtained from 60 individuals (30 males and 30 females), with age ranging from 18 to 25 years. Two orthodontists and two lay people esthetically evaluated these pictures using a visual analogue scale. In each picture the right and left negative spaces were measured in millimeters and in proportion related to smile width. Data was analyzed for statistical significance (p=0.05). The sample's medium negative space was 6.68 l 1.99 mm and the proportion related to smile width was 9.6 l 2.56 %, for each side of the arch. No statistically significant asymmetries were observed between right and left sides. The mean negative space was significantly bigger in males than in females (p=0,28) (7.08 l 2.24 mm in males vs. 6.28 l 1.62 mm in females), but the proportion related to smile width was similar in males and females (9.94 l 2.24 % in males vs. 9.26 l 1.61 % in females). No significant differences were detected in the visual analogue scale esthetic analysis between the orthodontists and lay people. When the twelve individuals with smaller negative spaces in proportion to smile width where compared to the twelve individuals with bigger negative spaces in proportion to smile width, no statistical difference related to esthetical evaluation was noted (p=0,110). In conclusion, the negative space did not influence the smile esthetics in the present sample.
The purpose of this study was to measure and verify the esthetic influence during smile of the bilateral space between the upper posterior teeth and the corner of the lips, known as the negative space. The sample was constituted of 60 forced smile pictures, obtained from 60 individuals (30 males and 30 females), with age ranging from 18 to 25 years. Two orthodontists and two lay people esthetically evaluated these pictures using a visual analogue scale. In each picture the right and left negative spaces were measured in millimeters and in proportion related to smile width. Data was analyzed for statistical significance (p=0.05). The sample's medium negative space was 6.68 l 1.99 mm and the proportion related to smile width was 9.6 l 2.56 %, for each side of the arch. No statistically significant asymmetries were observed between right and left sides. The mean negative space was significantly bigger in males than in females (p=0,28) (7.08 l 2.24 mm in males vs. 6.28 l 1.62 mm in females), but the proportion related to smile width was similar in males and females (9.94 l 2.24 % in males vs. 9.26 l 1.61 % in females). No significant differences were detected in the visual analogue scale esthetic analysis between the orthodontists and lay people. When the twelve individuals with smaller negative spaces in proportion to smile width where compared to the twelve individuals with bigger negative spaces in proportion to smile width, no statistical difference related to esthetical evaluation was noted (p=0,110). In conclusion, the negative space did not influence the smile esthetics in the present sample.
Descrição
Palavras-chave
Ortodontia, Estética dentária, Sorriso
Como citar
RITTER, Daltro Enéas. Avaliação da influência do espaço negativo na estética, durante o sorriso. 2003. 135 f. Tese (doutorado) - Universidade Estadual Paulista, Faculdade de Odontologia de Araraquara, 2003.