Layperson assessment of smile lines and upper lip combined images in smile esthetics.
J Prosthet Dent
; 2024 Mar 21.
Article
en En
| MEDLINE
| ID: mdl-38519327
ABSTRACT
STATEMENT OF PROBLEM:
The esthetic assessment of smile lines by laypersons is a subject of ongoing debate. However, smile lines often appear with different types of upper lip curvature, which further complicates the esthetic assessment process, and studies on this combination are lacking.PURPOSE:
The purpose of this clinical study was to investigate a layperson's esthetic perception of smile lines and upper lip combined images. MATERIAL ANDMETHODS:
Twenty-six smile images resulting from combinations of 3 upper lip types, 4 anterior smile line types, and 3 posterior smile line types were generated by an image editing software program. Eighty-three laypersons (39 men and 44 women; 18 to 35 years of age) completed rating images using a visual analog scale. Unattractive smiles were designated to be those with scores <50 and attractive ones with scores ≥50. Data were analyzed using 1-way analysis of variance and Bonferroni post hoc tests (α=.05).RESULTS:
High anterior smile line with gingival display >4 mm obtained significantly lower scores of <50 when combined with all upper lip curvatures (upward 28.29 ±22.79, straight 38.74 ±23.00, downward 30.67 ±22.25, P<.01). High anterior smile lines with gingival display ≤4 mm combined with upward and straight upper lip curvature images obtained significantly higher scores, and all were ≥50 (upward 63.24 ±22.22, straight 61.40 ±21.58, P<.01).CONCLUSIONS:
From a layperson's perspective, high anterior smile lines with gingival display >4 mm combined with any lip type were determined to be unattractive. If gingival display was ≤4 mm combined with both upward and straight lip types, the smile was assessed as attractive.
Texto completo:
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Banco de datos:
MEDLINE
Idioma:
En
Revista:
J Prosthet Dent
/
J. prosthet. dent
/
Journal of prosthetic dentistry
Año:
2024
Tipo del documento:
Article