Perceptions of Altered Smile Esthetics: A Comparative Evaluation in Orthodontists, Dentists, and Laypersons

Table 1

Comparison of mean esthetic scores of different smile variables as evaluated by the study populations.

Smile; variables	Orthodontist; mean SD ()	Dentist; mean SD ()	Laypersons; mean SD ()	value	value
Smile arc	2 0.000	1.29 0.825	1.53 0.680	9.713	0.000
Buccal corridor	1.93 0.262	0.89 0.832	0.801 0.114	18.617	0.000
Gummy smile (1st acceptable choice)	1.29 0.535	1.34 0.539	1.78 1.141	3.968	0.022
Midline diastema (1st acceptable choice)	1.32 0.548	1.06 0.236	1.18 0.527	2.542	0.083
Crown length (1st acceptable choice)	1.14 0.356	1.03 0.169	1.37 0.906	3.098	0.049
Crown width (1st acceptable choice)	1.21 0.499	1.37 0.490	1.63 1.131	2.433	0.093

SD: standard deviations, one-way ANOVA, , and .