A three-dimensional analysis of skeletal and dental characteristics in skeletal class III patients with facial asymmetry

Yu, Jinfeng; Hu, Yun; Huang, Mingna; Ding, Xiaoqian; Zheng, Leilei

doi:10.3233/xst-17333

Cited by 10 publications

(15 citation statements)

References 27 publications

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“…Dans ce cas la gestion de l'asymétrie se fait généralement au moyen de compensation dentaire via l'activation asymétrique des appareils orthodontiques, à condition que les principes biomécaniques de base, et la notion d'ancrage soient bien gérés. [13][14][15].…”

Section: Discussionunclassified

Orthodontic Treatment by Compensation of a Skeletal Class III Associated with Mandibular Laterognathy: Aesthetic Challenge and Therapeutic Occlusion

Elhajoubi¹,

Elidrissi²,

Bahoum³

et al. 2021

Integr J Med Sci

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Introduction: This case report describes compensatory orthodontic treatment in a young patient aged 13 years. She presented with a class III skeletal malocclusion associated with mandibular laterognathy. The patient's main reason for consultation was the anterior cross bite and the aesthetics of her smile.Materials and Methods: The chosen treatment was therefore an orthodontic camouflage with the extraction of the first mandibular premolars and the second maxillary premolars, in order to catch a correct anterior articular and restore a good occlusal relationship, however, the mandibular laterognathy was camouflaged by means of dental compensations and also by correcting the deviation of the incisors medians through a class III mechanics with good anchorage management.Results: After 24 months of treatment, an ideal overjet and overbite associated with a Class I canine and molar relationship, was obtained, associated with a perfect coincidence of the interincisor medians.Conclusion: Class III skeletal cases can often be treated either by orthodontic camouflage or surgery. In our case study, the treatment adopted was orthodontic camouflage with extractions. The results of the treatment were satisfactory and the occlusal objectives were achieved. The final harmonious smile pleased the patient and improved her self-esteem and quality of life.

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Section: Discussionunclassified

Orthodontic Treatment by Compensation of a Skeletal Class III Associated with Mandibular Laterognathy: Aesthetic Challenge and Therapeutic Occlusion

Elhajoubi¹,

Elidrissi²,

Bahoum³

et al. 2021

Integr J Med Sci

View full text Add to dashboard Cite

show abstract

“…The treatment objectives for this patient were: (1) to align and level the arches with lower crowding through stripping; (2) to correct the axial inclination of the incisors with the skeletal planes (dental decompensation); (3) to correct the skeletal base relationship to the SN plane and mandibular asymmetry through orthognathic surgery (Le Fort I osteotomy with maxillary advancement and BSSO of mandibular setback, with repositioning to correct asymmetry); (4) to achieve an angle Class I; (5) to obtain a correct overjet and overbite; (6) to improve the function of the stomatognathic system and facial aesthetic with a functional occlusion.…”

Section: Methodsmentioning

confidence: 99%

“…Additionally, orthodontic treatment has been demonstrated to increase oral health parameters [3]. Facial asymmetry can manifest as a part of disharmony of the craniofacial complex, altering the proportions between the facial thirds [4], having skeletal, dental, and soft tissue involvement [5]. According to Thiesen et al, the prevalence of facial asymmetry varied from 11 to 37% [6], being 61% more prevalent in skeletal Class III patients [7] than skeletal Class II [4].…”

Section: Introductionmentioning

confidence: 99%

“…The assessment of facial asymmetry is usually performed by comparing the distance between gnation or ment points and the facial midline [4]. The etiology is not entirely known, but several genetic and environmental risk factors are identified [4,5]. Most cases of facial asymmetry have a mandibular origin, resulting in a deviation of the lower third of the face [6].…”

Section: Introductionmentioning

confidence: 99%

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Surgical-Orthodontic Diagnosis and Treatment Planning in an Asymmetric Skeletal Class III Patient—A Case Report

et al. 2021

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The skeletal Class III pattern is characterized by a sagittal intermaxillary mesial discrepancy. This discrepancy may have an unfavorable impact on function and aesthetics, which can be aggravated by the presence of facial asymmetries. This case report describes the diagnosis and treatment planning of a 19-year-old male patient with a skeletal Class III, maxillary hypoplasia, anterior crossbite, and mandibular asymmetry. When the patient reached skeletal maturity at the end of puberty, the definitive diagnosis was skeletal Class III with hyperdivergent profile and mandibular asymmetry, and a surgical-orthodontic treatment was proposed. At the end of the treatment, bimaxillary surgical correction allowed a skeletal Class I with mandibular symmetry, improving the function of the stomatognathic system and facial aesthetics.

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“…Skrinjaric et al [ 8 ] found that the degree of fluctuation in dental arch asymmetry is highest in class III patients. Yu et al [ 9 ] found that the mandibular deviation of class III dental arches can misdirect the teeth to the buccolingual direction, leading to dental arch asymmetry. Veli et al [ 10 ] found that asymmetry in dental arches with class II subdivision malocclusion does not change with increasing age.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Growth and Development of Adolescents’ Dental Arch Asymmetry with Normal Occlusion Using Three-Dimensional Digital Models

Yang¹,

Ding

Li³

2021

Journal of Healthcare Engineering

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Objective. The purpose of this study was to observe the dental arch asymmetry in 12-year-olds with normal occlusion during the early permanent dentition stage. Methods. Ninety-two 12-year-old students (46 males and 46 females) who had normal occlusion during early permanent dentition were selected from a junior high school in Tangshan, China. Once per year for three consecutive years, a dental cast was obtained from each subject, and the cast was scanned with a 3D digital scanner (R700 3D). The median palatal plane (MPP) and transverse palatal plane (TPP) were used as the reference plane for the transverse and anteroposterior measurements, respectively. Results. Most of the dental arch asymmetry indicators decreased with age, but these differences were not statistically significant. The values of the midincisal edge of the upper central incisors (U1), midincisal edge of the upper lateral incisors (U2), upper canine cusp tip (U3), upper first premolar buccal cusp tip (U4), upper second premolar buccal cusp tip (U5), upper first molar mesiobuccal cusp tip (U6MB), and upper first molar distobuccal cusp tip (U6DB) to the TPP were 0.019 mm, 0.279 mm, 0.017 mm, 0.016 mm, 0.016 mm, 0.027 mm, and 0.200 mm, respectively; these values were larger in males than in females ( P < 0.05 ). The values of 2–5, 6MB, and 6DB-TPP were 0.154 mm, 0.102 mm, 0.119 mm, 0.259 mm, 0.206 mm, and 0.123 mm, respectively, larger in the mandibular than in the maxillary dental arch ( P < 0.05 ). The values of the midincisal edge of the lower central incisors (L1), midincisal edge of the lower lateral incisors (L2), lower canine cusp tip (L3), lower first premolar buccal cusp tip (L4), lower second premolar buccal cusp tip (L5), lower first molar mesiobuccal cusp tip (L6MB), and lower first molar distobuccal cusp tip (L6DB) to the MPP were 0.399 mm, 0.197 mm, 0.258 mm, 0.248 mm, 0.214 mm, 0.575 mm, and 0.531 mm, respectively, larger than L1-5, L6MB, and L6DB-TPP ( P < 0.05 ). Conclusion. The asymmetry of the dental arch in 12-to-15-year-olds with normal occlusion did not change significantly with age. The anteroposterior asymmetry of the maxillary dental arch is larger in males than in females. With the exception of the central incisor, the anteroposterior asymmetry of the mandibular dental arch is larger than that of the maxillary dental arch. The transverse asymmetry of the mandibular dental arch is larger than the anteroposterior asymmetry.

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A three-dimensional analysis of skeletal and dental characteristics in skeletal class III patients with facial asymmetry

Cited by 10 publications

References 27 publications

Orthodontic Treatment by Compensation of a Skeletal Class III Associated with Mandibular Laterognathy: Aesthetic Challenge and Therapeutic Occlusion

Orthodontic Treatment by Compensation of a Skeletal Class III Associated with Mandibular Laterognathy: Aesthetic Challenge and Therapeutic Occlusion

Surgical-Orthodontic Diagnosis and Treatment Planning in an Asymmetric Skeletal Class III Patient—A Case Report

Evaluation of Growth and Development of Adolescents’ Dental Arch Asymmetry with Normal Occlusion Using Three-Dimensional Digital Models

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