Evaluation of perceptions of smile esthetics by dental students

Paken, Gamze; Ünal, Merve

doi:10.2478/bjdm-2021-0016

Cited by 3 publications

(3 citation statements)

References 28 publications

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“…At the same time, it was considered acceptable, according to [ 37 , 38 ]. In contrast, 91.0% of students did not find the midline shift attractive [ 39 ].…”

Section: Discussionmentioning

confidence: 99%

“…These results are comparable to those described in [ 10 , 41 ], verifying the impact of structures adjacent to the smile on the perception of upper dental midline deviations in 1 mm. On the other hand, [ 38 , 39 ] studied midline inclinations in an asymmetrical nose and chin and found them to influence perception. Silva and colleagues [ 42 ] observed that laypeople preferred canting of the dental midline in the same direction as the deviation of the nose and chin rather than the opposite.…”

Section: Discussionmentioning

confidence: 99%

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Effect of the ethnic, profession, gender, and social background on the perception of upper dental midline deviations in smile esthetics by Chinese and Black raters

et al. 2023

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Abstracts Background The purpose of this study was to compare the perception of upper dental midline deviation on the attractiveness of a smile among raters from different ethnicities, professions, genders, and ages and measure to what extent the presence or absence of the associated smiling structures influence the raters' evaluations. Methods A male subject (26 years of age) with adequate smile characteristics was selected by 3 experienced orthodontists, and 561 raters from 2 different ethnic groups (281 Chinese raters and 280 Black raters) rated the subject's smile after the subject's upper dental midline was digitally altered from 0 to 5 mm using a 5-point Likert scale on 12 smile photographs divided into two groups: group 1, in the presence of smile related structures, two-thirds of the nose, lips, and chin (NLC), and group 2, in the absence of smile related structures, the lips only (L). Results There were statistically significant differences (p < 0.05) between the two ethnicities, in 2 mm and 4 mm in-group NLC and 5 mm in-group L, as well as the raters' profession to each midline shift of both groups (NLC) and (L) for both ethnicities except for 0 mm. Regarding the role of associated smile structures, the smile photos were observed in the presence of smile-associated structures, and in its absence (NLC × L), statistically significant differences (p < 0.05) were found when the deviation was 5 mm among the Chinese raters; in 1 mm, and 4 mm among the Black raters. Among different genders, statistical differences were only reported (p < 0.05) for Chinese raters for 5 mm in NLC, while statistical differences were observed for 2 mm and 3 mm in NLC for Black raters. For age categories, differences were observed (p < 0.05) for 4 mm, 5 mm in NLC and 4 mm, and 5 mm in L for Chinese raters, while 5 mm in NLC and 1 mm in L for Black raters. Conclusion Perception of the upper dental midline deviations was influenced by the factors of ethnicity, profession, presence or absence of smile-associated structures, as well as the gender and age of the raters.

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“…At the same time, it was considered acceptable, according to [ 37 , 38 ]. In contrast, 91.0% of students did not find the midline shift attractive [ 39 ].…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effect of the ethnic, profession, gender, and social background on the perception of upper dental midline deviations in smile esthetics by Chinese and Black raters

et al. 2023

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“…In a case study carried out in 2016, in a young patient with bruxism, a progressive increase in the size and depth of incisal embrasures resulted in a pleasing smile 8 . In older dentition, the incisal edges get blunt with wear and attrition; a younger smile can be given by altering the incisal embrasure forms 9 . Contact points and incisal embrasures are also carefully planned while rehabilitating smiles using direct composite restorations because of their significant influence 10 .…”

Section: Introductionmentioning

confidence: 99%

Perception of the Most Esthetically Pleasing Incisal Embrasure Design

Badshah

Khalid

2022

J Gandhara Med Dent Sci

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OBJECTIVES: To determine the frequency of female dentate patients' most appealing incisal edge embrasure designs. METHODOLOGY: The sample consisted of 385 female dentate patients between 18 to 40 years of age visiting Sardar Begum Dental College and Hospital, Peshawar, from January 2021 to June 2021. The subject's perception was recorded by having the subjects visualize a set of five photographs showing different categories of incisal edge embrasure designs classified by Foulger and Tredwin. The labels of these different photograph categories were obscured using a non-transparent tape, and A, B, C, D, and E; names were assigned to them, respectively, to avoid bias. Means and standard deviations were calculated for quantitative variables like age, while the frequency was calculated in percentage for categorical variables for the most appealing incisal edge embrasure design. RESULTS: The most attractive incisal edge embrasure design amongst the female dentate patients was the "Ideal" design with 33.8%. The second most attractive design displayed "Equal" incisal edge embrasures with 31.4. The "Reversed" and "None" categories had 12.2% and 9.9% percentages. The least attractive design amongst these females was with "Exaggerated" incisal edge embrasures. CONCLUSION: Female dentate patients' most appealing incisal edge embrasure design displays the "Ideal" incisal edge embrasure form.

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Clinical audit of an artificial intelligence (AI) empowered smile simulation system: a prospective clinical trial

Adel,

Bichu,

Pandian

et al. 2024

Sci Rep

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Smile aesthetics is an important factor to consider during orthodontic treatment planning. The aim of the present study is to assess the predictability of Invisalign SmileView for digital AI smile simulation in comparison to actual smile treatment outcomes, using various smile assessment parameters. A total of 24 adult subjects (12 females and 12 males; mean age 22 ± 5.2 years) who chose to be treated using Invisalign were prospectively recruited to have their pretreatment smiles captured using the Invisalign SmileView to simulate their new smiles before treatment was started. Patients were then treated using upper and lower Invisalign aligners with average treatment time of 18 ± 6 months. Full post-treatment records were obtained and full smile frame images of simulated smile and actual final smile of each subject were evaluated by an independent examiner using an objective assessment sheet. Ten smile variants were used to assess the characteristics of the full smile images. Significance level was set at P < 0.05. The ICC for the quantitative parameters showed that there was an overall excellent & good internal consistency (alpha value > 0.7 & > 0.9). The Independent t test was performed amongst the quantitative variables. The P value was not significant for all except maxillary inter canine width (P = 0.05), stating that for the five variables namely; philtrum height, commissure height, smile width, buccal corridor and smile index, actual mean values were similar to the simulation mean values. For the qualitative variables, the Kappa value ranged between 0.66 and − 0.75 which showed a substantial level of agreement between the examiners. Additionally, the Chi square test for the qualitative variables, revealed that the P value was found to be significant in all except lip line. This implies that only the lip line values are comparable. More optimal lip lines, straighter smile arcs and more ideal tooth display were achieved in actual post treatment results in comparison to the initially predicted smiles. Five quantitative smile assessment parameters i.e., philtrum height, commissure height, smile width, buccal corridor, and smile index, could be used as reliable predictors of smile simulation. Maxillary inter canine width cannot be considered to be a reliable parameter for smile simulation prediction. A single qualitative parameter, namely the lip line, can be used as a reliable predictor for smile simulation. Three qualitative parameters i.e., most posterior tooth display, smile arc, and amount of lower incisor exposure cannot be considered as reliable parameters for smile prediction.Trial Registration number and date: NCT06123585, (09/11/2023)

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Evaluation of perceptions of smile esthetics by dental students

Cited by 3 publications

References 28 publications

Effect of the ethnic, profession, gender, and social background on the perception of upper dental midline deviations in smile esthetics by Chinese and Black raters

Effect of the ethnic, profession, gender, and social background on the perception of upper dental midline deviations in smile esthetics by Chinese and Black raters

Perception of the Most Esthetically Pleasing Incisal Embrasure Design

Clinical audit of an artificial intelligence (AI) empowered smile simulation system: a prospective clinical trial

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