Research Article

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

Table 5

Intragroup comparison of esthetic scores by LSD method.

Smile variablesGroup comparison value

Smile arcOrthodontist dentist0.000
Dentist layperson0.089
Orthodontist layperson0.003

Buccal corridorOrthodontist dentist0.000
Dentist layperson0.272
Orthodontist layperson0.000

Gummy smile
(1st choice)
Orthodontist dentist0.793
Dentist layperson0.025
Orthodontist layperson0.018

Gummy smile
(2nd choice)
Orthodontist dentist0.698
Dentist layperson0.017*
Orthodontist layperson0.068

Midline diastema
(1st choice)
Orthodontist dentist0.026
Dentist layperson0.219
Orthodontist layperson0.212

Midline diastema
(2nd choice)
Orthodontist dentist0.008
Dentist layperson0.713
Orthodontist layperson0.013

Crown length
(1st choice)
Orthodontist dentist0.478
Dentist layperson0.138
Orthodontist layperson0.017

Crown length
(2nd choice)
Orthodontist dentist0.053
Dentist layperson0.165
Orthodontist layperson0.001

Crown width
(1st choice)
Orthodontist dentist0.460
Dentist layperson0.037
Orthodontist layperson0.111

Crown width
(2nd choice)
Orthodontist dentist0.880
Dentist layperson0.126
Orthodontist layperson0.205

, , and .