Influence of canine vertical position on smile esthetic perceptions by orthodontists and laypersons

Paiva, Thaís Teixeira de; Machado, Ricardo Martins; Motta, Alexandre Trindade Simões da; Mattos, Cláudia Trindade

doi:10.1016/j.ajodo.2017.07.018

Cited by 19 publications

(19 citation statements)

References 24 publications

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“…In recent years, there has been an increased focus on smile esthetics in contemporary orthodontics, both among dental professionals and patients 1‐4 5‐8 .…”

Section: Introductionmentioning

confidence: 99%

“…According to Kokich et al, 10 maxillary lateral incisor width can have a different threshold of esthetic perception between general dentists, orthodontists, and laypeople. Studies have demonstrated that orthodontists can be more critical on their assessment of smile microesthetics than laypeople 1,11 . These differences should be taken into consideration when treating an orthodontic patient, since patient satisfaction may often rely on esthetic outcomes 12 …”

Section: Introductionmentioning

confidence: 99%

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Influence of maxillary lateral incisor width ratio on perception of smile esthetics among orthodontists and laypersons

Florez

Rinchuse

Zullo

2020

J Esthet Restor Dent

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Objective This study aimed to analyze the impact of different maxillary lateral incisor width ratios on the perception of smile esthetics among orthodontists and laypersons. Methods A smile photograph of a male subject showing the lips and gingival margins was selected. The smile was standardized for maxillary central incisor width proportions and ideally perceived smile esthetics. The maxillary lateral incisor width was symmetrically modified in increments of ratios of the central incisor from a ratio of 4:10 to a ratio of 8:10. The images were analyzed by 283 laypersons and 83 orthodontists who ranked the level of attractiveness using a visual analog scale. Results There were significant differences between the esthetic perception of the five different width ratios, and between the orthodontists and laypersons in their evaluations of esthetics (P < 0.0004). There were no significant differences in esthetic evaluations between genders. Conclusions For orthodontists, the most attractive width ratio was 5.7:10, while the highest ranked ratio among laypersons was 8:10, although laypersons ranked all ratios very similarly. Both groups ranked the width ratio of 4:10 the lowest. Orthodontists were more critical in their assessment of esthetics. Clinical significance To what proportions or protocol should a peg‐shaped maxillary lateral incisor or missing lateral, that is, to be replaced with an implant/crown be restored? This is an important clinical question that is often encountered by the orthodontist and the restoring dentist. The literature suggests that orthodontists and laypeople have different perceptions of smile esthetics, and it is important to have patient centered goals when treatment planning. Further research is necessary to identify the width ratio of which the lateral incisor is perceived to be esthetic as well as the ideal ratio to consider when restoring lateral incisors. This research assessed and compared the perception that orthodontists and laypeople have on smile esthetics regarding different width ratios of lateral incisors.

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“…In recent years, there has been an increased focus on smile esthetics in contemporary orthodontics, both among dental professionals and patients 1‐4 5‐8 .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of maxillary lateral incisor width ratio on perception of smile esthetics among orthodontists and laypersons

Florez

Rinchuse

Zullo

2020

J Esthet Restor Dent

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“…McNamara et al [9] analyzed the differences in the degree of interests of nonprofessionals in 6 facial regions (chin, ears, eyes, mouth, nose, and other regions) through eye tracking. Paiva et al [10] evaluated 10 photos by the visual analog scale. ey concluded that the vertical position of the maxillary canine teeth has an impact on the smile aesthetic evaluation, while gingival margin does not.…”

Section: Introductionmentioning

confidence: 99%

Esthetic Evaluation of Facial Soft Tissue Based on Nonrigid Image Deformation

Yang

Mohamed

et al. 2020

Mathematical Problems in Engineering

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As the time passes by, orthodontics is paying more and more attention to facial aesthetics. However, related research is mostly in the stage of qualitative evaluation without clinical reference of specific soft tissue data. Therefore, by collecting the pre- and post-treatment photographs of 26 adult female patients, this study used image deformation technology to process the photos of a 23-year-old female patient, and two groups of facial photos were established. Then, 22 males and 27 females were selected to conduct an aesthetic evaluation to the original and processed photos by questionnaire survey. Relevant indicators of the corresponding photos were obtained. Group t-test, paired t-test, and nonparametric test were used in data calculation. For patients with high compliance, deep overbite with low angle or average angle are more suitable for fixed appliance with the bite plate, while with high angle are not suitable. The nonprofessionals prefer narrower face, more retracted lip position, and fuller chin than in the actual treatment. Among them, female evaluators prefer narrower lower face than male evaluators do. Male evaluators prefer thicker lips and chins, especially thicker lower lips than female evaluators do. Laypeople prefer narrower face, more retracted lip position, and fuller chin.

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“…In this sense, data indicate different aesthetic perceptions when comparing orthodontist and patient evaluations of facial characteristics. In addition, professionals are more intuitive in detecting facial discrepancies when compared to patients (Kokich et al, 2006; Paiva et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The influence of varying maxillary central incisor vertical dimension on perceived smile aesthetics

et al. 2019

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Objective: To evaluate patient perception of the smile focused on analysis of the upper incisors. Design: Cross-sectional study. Setting: Department of Clinical and Social Dentistry at Federal University of Paraíba, João Pessoa, Brazil. Participants: The sample consisted of 135 individuals (73 women and 62 men). Methods: Images with different characteristics associated with the incisal edges were shown at random and analysed using a Likert scale. Data were analysed using the Chi-square test or Fisher’s exact test with a statistically significant difference ( P < 0.05). Results: Smile I (difference of 1.5 mm in relation to the central incisor and lateral) was considered the most aesthetic, while Smile III (no difference in height between the central and lateral incisors) was the least aesthetic. A significant difference was found between perception of smile II (difference of 1 mm in relation to the central incisor and lateral) and age groups ( P < 0.005), with 31% (n = 13) of individuals aged 45–64 years considering smile II as not pleasant, 4.4% (n = 2) aged 15–24 years and 8.3% (n=4) aged 25–44 years and 4.4% (n = 2) aged 15–24 years considering the same. A significant difference was also found in relation to educational background of the assessor and smile perception, with smile III ( P = 0.0441) and smile IV ( P = 0.0053) considered the most aesthetic ( P = 0.0116). Conclusion: The smile considered most attractive among the sample was that with 1.5 mm steepness between the central and lateral incisors, while a flat smile arc was considered least attractive.

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Influence of canine vertical position on smile esthetic perceptions by orthodontists and laypersons

Cited by 19 publications

References 24 publications

Influence of maxillary lateral incisor width ratio on perception of smile esthetics among orthodontists and laypersons

Influence of maxillary lateral incisor width ratio on perception of smile esthetics among orthodontists and laypersons

Esthetic Evaluation of Facial Soft Tissue Based on Nonrigid Image Deformation

The influence of varying maxillary central incisor vertical dimension on perceived smile aesthetics

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