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Effect of posterior gingival smile on the perception of smile esthetics

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Effect of posterior gingival smile on the perception of smile esthetics

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dc.contributor.author Rodríguez Martínez, Alicia es
dc.contributor.author Vicente Hernández, Ascensión es
dc.contributor.author Bravo González, Luis Alberto es
dc.date.accessioned 2014-07-04T07:53:28Z
dc.date.available 2014-07-04T07:53:28Z
dc.date.issued 2014 es
dc.identifier.citation Rodríguez Martínez, Alicia ; Vicente Hernández, Ascensión ; Bravo González, Luis Alberto. Effect of posterior gingival smile on the perception of smile esthetics. En: Medicina oral, patología oral y cirugía bucal. Ed inglesa, 2014, Vol. 19, No. 1: 82-87 es
dc.identifier.uri http://hdl.handle.net/10550/36845
dc.description.abstract Objectives: To evaluate and compare the influence of posterior gummy smile on the perception of smile esthetics by orthodontists, general-dentists and laypersons. Study Design: A frontal photograph of a smile with normal gum exposure was chosen and manipulated digitally using Adobe Photoshop C3 to generate three further images with posterior gum exposure of 4, 6 and 8mm. These four images were assessed by the three evaluator groups: orthodontists (n=40), general-dentists (n=40) and laypersons (n=40). Both orthodontists and dentists had at least ten years professional experience and laypersons were aged between 40-50 years. The proportion of men to women was 20:20 in each group. Evaluators awarded a score to the smile esthetics of each image: 1=acceptable, 2=moderately acceptable, 3=unacceptable. Afterwards, each evaluator placed the four images in order of esthetic preference. Results: No significant differences (p>0.05) were detected between the three evaluator groups for the photo without posterior gummy smile. The perception of smile esthetics for a the 4mm posterior gummy smile (median for orthodontists=2, general-dentists= 1, laypersons=1), the 6mm (median for orthodontists=2, general-dentists=1, laypersons=1) and the 8mm (median for orthodontists=3, general-dentists=2, laypersons=2) was significantly different between orthodontists and the other two evaluator groups (p<0.0017). The three evaluator groups coincided in placing the image with the 6mm gum exposure in first place in order of esthetic preference. Conclusions: Posterior gummy smile influences the perception of smile esthetics more negatively among orthodontists than the rest of the groups. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Effect of posterior gingival smile on the perception of smile esthetics es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.type.hasVersion VoR es_ES
dc.identifier.url http://www.medicinaoral.com/pubmed/medoralv19_i1_p82.pdf es

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