Factors affecting changes in soft tissue profile after various treatment modalities for skeletal Class II malocclusion: A cross-sectional study

Khan, Adil Aziz; Fida, Mubassar; Sukhia, Rashna Hoshang

doi:10.1016/j.ortho.2019.06.009

Cited by 3 publications

(2 citation statements)

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“…Orthodontic camouflage treatment could be applied to patients with mild to moderate skeletal discrepancies. For adult patients with severe skeletal discrepancies, orthognathic surgery might be needed [ 24 , 25 ].…”

Section: Discussionmentioning

confidence: 99%

Three-dimensional evaluation of soft tissues in hyperdivergent skeletal class II females in Guangdong

et al. 2022

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Objectives To establish the three-dimensional facial soft tissue morphology of adolescent and adult females in the Guangdong population and to study the morphological characteristics of hyperdivergent skeletal class II females in Guangdong compared with that of normodivergent class I groups. Materials and methods The 3dMDface system was used to capture face scans of 160 patients, including 45 normal and 35 hyperdivergent skeletal class II adolescents (aged 11–14 years old) and 45 normal and 35 hyperdivergent skeletal class II adults (aged 18–30 years old). Thirty-two soft tissue landmarks were mapped, and 21 linear, 10 angular and 17 ratio measurements were obtained by 3dMDvultus analysis software. Data were assessed with a t-test of two independent samples between the normal adolescent and adult groups and between the normal and hyperdivergent skeletal class II groups. Results The linear measurements of the Guangdong adult females were larger than those of the adolescents in both Class I and Class II groups. However, the angular and ratio measurements had no significant difference. The vertical linear measurements were higher and the sagittal and transverse linear measurements were smaller in the hyperdivergent class II group (p < 0.05). The soft tissue ANB angle, chin-lip angle, and mandibular angle were significantly larger and the soft tissue facial convexity angle and nasal convexity angle were significantly smaller in the hyperdivergent class II group (p < 0.05). Additionally, there were significant differences in the ratio measurements between the hyperdivergent class II groups and the control groups (p < 0.05). Conclusions The three-dimensional facial morphology of Guangdong adolescent and adult females was acquired. The facial soft tissue measurements of the adults were higher in the three dimensions except for the facial convexity and proportional relationships which were similar, suggesting that the growth pattern remained the same. The three-dimensional facial soft tissue features of hyperdivergent skeletal class II were characterized by the terms “long, convex, and narrow”. Three-dimensional facial measurements can reflect intrinsic hard tissue characteristics.

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Section: Discussionmentioning

confidence: 99%

Three-dimensional evaluation of soft tissues in hyperdivergent skeletal class II females in Guangdong

et al. 2022

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“…Orthodontic camou age treatment could be applied to patients with mild to moderate skeletal discrepancies. For adult patients with severe skeletal discrepancies, orthognathic surgery might be needed [19][20].…”

Section: Linear Measurements Between Adolescent Females With Hyperdivergent Skeletal Class II Malocclusion and Those With Individualized mentioning

confidence: 99%

Three-Dimensional Evaluation of Soft Tissues in Hyperdivergent Skeletal Class II Females in Guangdong

Zhang¹,

Deng²,

Wen³

et al. 2021

Preprint

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Background: To establish the three-dimensional facial soft tissue morphology of adolescent and adult females in the Guangdong ethnic group and to study the morphological characteristics of hyperdivergent skeletal class Ⅱ females in Guangdong compared with the characteristics of normal groups.Materials and Methods: The 3dMDface system was used to capture face scans of 160 patients, including 45 normal and 35 hyperdivergent skeletal class II adolescents (aged 11–14 years old) and 45 normal and 35 hyperdivergent skeletal class II adults (aged 18–30 years old). Thirty-two soft tissue landmarks were mapped, and 21 linear, 10 angular and 17 ratio measurements were obtained by 3dMDvultus analysis software. Data were assessed with a t-test of two independent samples between the normal adolescent and adult groups and between the normal and hyperdivergent skeletal class II groups.Results: The linear measurements of the Guangdong adult females were larger than those of the adolescents. However, the angular and ratio measurements had little difference. The vertical linear measurements were higher and the sagittal and transverse linear measurements were smaller in the hyperdivergent class II group (p<0.05). The soft tissue ANB angle, chin-lip angle, and mandibular angle were significantly larger and the soft tissue facial convexity angle and nasal convexity angle were significantly smaller in the hyperdivergent class II group (p<0.05). Additionally, there were significant differences in the ratio measurements between the hyperdivergent class II groups and the control groups (p<0.05).Conclusions: The three-dimensional facial morphology of Guangdong adolescent and adult females was acquired. The facial soft tissue measurements of the adults were higher in height, width and depth, suggesting that from the adolescent to adult period, facial soft tissue grows in three dimensions. However, the facial convexity and proportional relationships were similar, suggesting that the growth pattern remained the same. The three-dimensional facial soft tissue features of hyperdivergent skeletal class II were characterized by the terms “long, convex, and narrow”, which was similar to the hard tissue features of hyperdivergent skeletal class II seen in previous studies. Three-dimensional facial measurements can reflect intrinsic hard tissue characteristics.

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Efficacy and safety of micro-implant anchorage in Angle class II malocclusion orthodontic treatment

et al. 2020

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Background: Angle class II malocclusion is clinically complex and common malocclusion type, which affects beauty. Conventional treatment has the disadvantages of long course of treatment, high cost, easy recurrence and limited curative effect. Clinical practice shows that micro-implant anchorage has certain advantages in the treatment of Angle II malocclusion, but lacks the evidence of evidence-based medicine. This study systematically evaluates the efficacy and safety of micro-implant anchorage in the treatment of Angle class II malocclusion. Methods: A systematic search was performed by retrieving on English databases (PubMed, Embase, Web of Science, and the Cochrane Library) and Chinese databases (CNKI, Wanfang, Weipu [VIP], CBM). Besides, manually search for Google and Baidu academic of micro-implant anchorage in the treatment of Angle class II malocclusion in randomized controlled clinical research. The retrieval time limit was from the establishment of the database to September 2020. Two researchers independently extracted and evaluated the quality of the data in the included study. A meta-analysis was performed using RevMan5.3 software. Results: In this study, the efficacy and safety of micro-implant anchorage against Angle class II malocclusion were evaluated by SNA, BNA, ANB, NLA°, Adverse reaction. Conclusions: This study will provide reliable evidence-based evidence for the clinical application of micro-implant anchorage in the treatment of Angle class II malocclusion. Ethics and dissemination: Private information from individuals will not be published. This systematic review also does not involve endangering participant rights. Ethical approval was not required. The results may be published in a peer-reviewed journal or disseminated at relevant conferences. OSF Registration number: DOI 10.17605/OSF.IO/UPBR8.

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Factors affecting changes in soft tissue profile after various treatment modalities for skeletal Class II malocclusion: A cross-sectional study

Cited by 3 publications

References 23 publications

Three-dimensional evaluation of soft tissues in hyperdivergent skeletal class II females in Guangdong

Three-dimensional evaluation of soft tissues in hyperdivergent skeletal class II females in Guangdong

Three-Dimensional Evaluation of Soft Tissues in Hyperdivergent Skeletal Class II Females in Guangdong

Efficacy and safety of micro-implant anchorage in Angle class II malocclusion orthodontic treatment

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