Smile attractiveness in class III patients after orthodontic camouflage or orthognathic surgery

Reis, Gabriela Martins; Freitas, Daniel Salvatore de; Oliveira, Renata Cristina Gobbi de; Oliveira, Ricardo César Gobbi de; Pinzan-Vercelino, Célia Regina Maio; Freitas, Karina Maria Salvatore de; Valarelli, Fabrício Pinelli

doi:10.1007/s00784-021-03966-w

Cited by 11 publications

(20 citation statements)

References 35 publications

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“…By contrast, previous studies have usually included patients with maxilla retrognathism and mandible prognathism. 8,12,34,35 Consequently, our analysis had fewer confounding factors, and we obtained consistent skeletal, dental, and soft tissue changes with orthognathic surgery.…”

Section: Discussionmentioning

confidence: 61%

“…In this retrospective study, we quantitatively evaluated the relationship of smile parameters with the surgical outcomes of patients with skeletal Class malocclusion by cephalometric factors, including landmarks and displacements. Although many studies have examined soft tissue changes after orthognathic surgery among patients with skeletal Class III malocclusion [28][29][30][31] , to the best of our knowledge, few studies have evaluated changes in smile parameters after orthognathic surgery in patients with skeletal Class III malocclusion [12][13][14][15] .…”

Section: Discussionmentioning

confidence: 99%

“…[5][6][7] Many studies have emphasized the skeletal and soft tissue changes before and after orthognathic surgery for patients with skeletal Class III malocclusion [8][9][10][11] ; however, few studies have explored the postoperative changes in smile esthetics. [12][13][14][15] In this study, we compared changes in smile parameters and investigated the impact of sex and chin asymmetry on smile parameters before and after surgical-orthodontic treatment in patients with skeletal Class III malocclusion with mandible prognathism. The null hypotheses were that no postoperative changes occur in any of the smile parameters, and that sex has no in uence on smile esthetics.…”

Section: Introductionmentioning

confidence: 99%

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Changes in Smile Parameters Following Surgical-orthodontic Treatment for Skeletal Class III Malocclusion

Cheng

Hsu

Moreira

et al. 2022

Preprint

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PurposeTo analyze differences in smile parameters following surgical-orthodontics in skeletal Class III patients with mandibular prognathism and to identify factors affecting smile parameters after orthognathic surgery.Materials and Methods:These retrospective study comprised of thirty-four patients, diagnosed as having skeletal Class III malocclusion with pure mandible prognathism, were treated with surgical-orthodontics in Taipei Medical University Hospital. Hard and soft tissue variables were measured through lateral cephalometry, and smile esthetics were measured using extraoral photographs. Postoperative changes in smile parameters and differences between sexes were analyzed using the t test. The relationship among smile parameters were analyzed using the Pearson correlation. Random forest methods and decision tree deep learning models were used to identify the variables associated with asymmetry after surgery.Results:Postoperatively, the buccal corridor (p = 0.024), upper lip height (C1) (p = 0.003), and smile index (p = 0.031) were significantly different. The upper midline and right chelion were significantly different between sexes. A very strong positive correlation was observed between the upper lip height and upper lip ratio and between the lower lip height and lower lip ratio; a strong positive correlation was observed between lower teeth exposure and the interlabial gap and between the right chelion and left chelion. By contrast, a strong negative correlation was observed between lower teeth exposure and the smile index and between the smile index and interlabial gap. The following smile parameters associated with asymmetry exhibited the most changes after surgery: lower lip area, interlabial gap, smile index, buccal corridor, and arc ratio.Conclusions:Following orthognathic surgery, marked changes were noted in skeletal, dental, and soft tissue parameters, but smile esthetics changed less from the frontal view. The most changes regarding asymmetry after surgery were noted in the lower lip area, interlabial gap, smile index, buccal corridor, and arc ratio in this order.

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Section: Discussionmentioning

confidence: 61%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Changes in Smile Parameters Following Surgical-orthodontic Treatment for Skeletal Class III Malocclusion

Cheng

Hsu

Moreira

et al. 2022

Preprint

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“…These results agree with prior research findings where people with normal occlusion were perceived as more attractive compared with those with malocclusion. 20,21 Self-perceived aesthetics was also found to be associated with malocclusion severity levels among Brazilian adolescents. 22 The existence of cultural and individual variations in acceptance of some occlusal irregularities, such as diastemas, 23,24 suggests a need for comparison of results from different populations to identify cultural differences in the impact of occlusal irregularities on perceived smile attractiveness.…”

Section: Resultsmentioning

confidence: 91%

Factors That Influence Self-perception Of Smile Attractiveness Among Adolescents

Akpasa

Yemitan

Ogunbanjo

et al. 2022

Egyptian Orthodontic Journal

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“…Patients with severe malocclusion have poor oral aesthetic self-perception, with aesthetic impact expressed by the constraint on smiling or showing teeth 24 . Malocclusion adversely affects the attractiveness of the face and smile, especially in the case of Class III malocclusion 5 – 7 , 25 . Thus, it is known that self-evaluation of facial attractiveness such as smile is closely related to facial morphology and malocclusion.…”

Section: Discussionmentioning

confidence: 99%

Effects of sex, age, choice of surgical orthodontic treatment, and skeletal pattern on the psychological assessments of orthodontic patients

Hino

Maeda‐Iino

Yagi

et al. 2022

Sci Rep

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We aimed to examine the effects of sex, age, choice of surgical orthodontic treatment, and skeletal pattern on psychological assessment scores of orthodontic patients before edgewise treatment. They completed the State-Trait Anxiety Inventory (STAI), Beck Depression Inventory (BDI)-II, and the psychological domain of the World Health Organization Quality of Life 26 (Psych-QOL) for assessment of anxiety, depression, and body image, respectively. No significant effects on psychological assessment scores due to sex or age differences were found. Surgical orthodontic treatment patients and patients with skeletal Class III had significantly higher STAI-Trait and/or BDI-II scores and lower Psych-QOL score. Based on the linear mixed-effects model, the choice of surgical orthodontic treatment had a significant effect on the STAI-Trait, BDI-II, and Psych-QOL scores. No significant interaction effect was found between the choice of surgical orthodontic treatment and the skeletal pattern by ANB angle. Patients with skeletal Class I or III who chose surgical orthodontic treatment had higher STAI-Trait and/or BDI-II scores and/or lower body image score, respectively. These results suggest that patients who chose surgical orthodontic treatment, particularly those with skeletal Class I and III, may be more prone to experience anxiety and depression and have body image dissatisfaction.

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Smile attractiveness in class III patients after orthodontic camouflage or orthognathic surgery

Cited by 11 publications

References 35 publications

Changes in Smile Parameters Following Surgical-orthodontic Treatment for Skeletal Class III Malocclusion

Changes in Smile Parameters Following Surgical-orthodontic Treatment for Skeletal Class III Malocclusion

Factors That Influence Self-perception Of Smile Attractiveness Among Adolescents

Effects of sex, age, choice of surgical orthodontic treatment, and skeletal pattern on the psychological assessments of orthodontic patients

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