Perceptions of dental professionals and laypeople to altered maxillary incisor crowding

Ma, Wei; Preston, Brian; Asai, Yutaka; Guan, Huiyan; Guan, Guoqiang

doi:10.1016/j.ajodo.2014.07.018

Cited by 17 publications

(12 citation statements)

References 23 publications

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“…This is in accordance with earlier studies where orthodontic professionals tended to be more critical of dental irregularities compared with laypeople. 6,8 In terms of limitations, the precision of some of the potential thresholds prompting decisions for re-treatment in the present study was limited by the necessity to include a limited number of examples (typically 3) within each category to allow a significant range of features to be assessed. More detailed analysis may therefore be undertaken in the future.…”

Section: Discussionmentioning

confidence: 99%

“…Clinicians typically have a lower tolerance for orthodontic irregularity than patients. [6][7][8] However, the majority of research has focused on upper anterior discrepancies. Moreover, while Little's irregularity index, the most accepted for quantifying relapse, solely accounts for horizontal displacements, there is little appreciation of the relative importance of this and other possible manifestations of malalignment.…”

Section: Introductionmentioning

confidence: 99%

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Mixed-methods assessment of perceptions of mandibular anterior malalignment and need for orthodontic retreatment

Kearney

Pandis

Fleming

2016

American Journal of Orthodontics and Dentofacial Orthopedics

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mixed-methods assessment of perceptions of mandibular anterior malalignment and need for orthodontic retreatment

Kearney

Pandis

Fleming

2016

American Journal of Orthodontics and Dentofacial Orthopedics

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“…One of the consequences of dental crowding is the spatial displacement of teeth. Previous studies have simulated the rotational displacement of the maxillary lateral incisors and central incisors due to crowded dentition [ 8 , 9 ]. Labiolingual movement of maxillary lateral incisors is also a common deformity caused by crowded dentition, yet we are unaware of studies about the aesthetic effects of such movement.…”

Section: Introductionmentioning

confidence: 99%

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

et al. 2021

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Background The maxillary anterior teeth play a crucial role in smile aesthetics. Previous studies regarding the importance of maxillary lateral incisors for smile aesthetics concentrated on their size, incisor edge level, and inclination, etc. However, the aesthetic effect of lateral incisor movement in the spatial position has not been studied yet. Therefore, the purpose of this study was to explore the influence of the labiolingual position of maxillary lateral incisors on the aesthetic perception of smiles by orthodontists and laypersons, as well as analyze differences in this perception between male and female raters. Methods A three-dimensional (3D) dental model was generated from the photograph of a man’s smile using iOrtho7.0 software (Time Angel, Wuxi, China). Based on this model, seven images were generated with different labiolingual positions of the maxillary lateral incisors in 0.5 mm increments (+ indicating labial translation, and—indicating lingual translation). The images were evaluated by 86 orthodontists and 161 laypersons using a visual analog scale, with lower scores indicating less attractiveness. Data were analyzed using Student’s t test and one-way analysis of variance with post hoc test. Results There was no significant difference in smile ratings by males and females. Orthodontists assigned lower scores to all images than laypersons. The smile at + 1.5 mm was considered the least attractive by orthodontists, while smiles at + 1.5 mm and − 1.5 mm were regarded as the least attractive by laypersons. The smile at 0 mm was evaluated as the most attractive by all raters. Laypersons gave different scores to smiles at 0 or − 0.5 mm, but orthodontists did not. Conclusions The labiolingual position of maxillary lateral incisors does affect the perception of smile aesthetics. Orthodontists may rate smile aesthetics more critically than laypersons. Therefore, communication and discussion between orthodontists and patients is needed to achieve better therapeutic and aesthetic outcomes.

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“…One of the consequences of dental crowding is the spatial displacement of teeth. Previous studies have simulated the rotational displacement of the maxillary lateral incisors and central incisors due to crowded dentition [8,9]. Labiolingual movement of maxillary lateral incisors is also a common deformity caused by crowded dentition, which can be easily found in the clinic.…”

Section: Introductionmentioning

confidence: 99%

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

Jiang

Cao

Yang

et al. 2021

Preprint

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Background: The maxillary anterior teeth play a crucial role in smile aesthetics. Previous studies regarding the importance of maxillary lateral incisors for smile aesthetics concentrated on their size, incisor edge level, and inclination, etc. However, the aesthetic effect of lateral incisor movement in the spatial position has not been studied yet. Therefore, the purpose of this study was to explore the influence of the labiolingual position of maxillary lateral incisors on the aesthetic perception of smiles by orthodontists and laypersons, as well as analyze differences in this perception between male and female raters.Methods: A three-dimensional (3D) dental model was generated from the photograph of a man’s smile using iOrtho7.0 software (Time Angel, Wuxi, China). Based on this model, seven images were generated with different labiolingual positions of the maxillary lateral incisors in 0.5 mm increments (+ indicating labial translation, and - indicating lingual translation). The images were evaluated by 86 orthodontists and 161 laypersons using a visual analog scale, with lower scores indicating less attractiveness. Data were analyzed using Student’s t test and one-way analysis of variance with post hoc test.Results: There was no significant difference in smile ratings by males and females. Orthodontists assigned lower scores to all images than laypersons. The smile at +1.5 mm was considered the least attractive by orthodontists, while smiles at +1.5 mm and -1.5 mm were regarded as the least attractive by laypersons. The smile at 0 mm was evaluated as the most attractive by all raters. Laypersons gave different scores to smiles at 0 or -0.5 mm, but orthodontists did not.Conclusions: The labiolingual position of maxillary lateral incisors does affect the perception of smile aesthetics. Orthodontists may rate smile aesthetics more critically than laypersons. Therefore, communication and discussion between orthodontists and patients is needed to achieve better therapeutic and aesthetic outcomes.

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Perceptions of dental professionals and laypeople to altered maxillary incisor crowding

Cited by 17 publications

References 23 publications

Mixed-methods assessment of perceptions of mandibular anterior malalignment and need for orthodontic retreatment

Mixed-methods assessment of perceptions of mandibular anterior malalignment and need for orthodontic retreatment

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

Aesthetic evaluation of the labiolingual position of maxillary lateral incisors by orthodontists and laypersons

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