Improved lip esthetics in patients with skeletal Class III malocclusion and facial asymmetry after isolated mandibular orthognathic surgery

OBJECTIVE: To investigate three-dimensional soft tissue changes of lips and related jaw changes in patients with skeletal class III malocclusion and facial asymmetry using cone-beam computerized tomography (CBCT). METHOD: This study included 46 CBCT scans of patients with aforementioned character before (T1) and 6–12 months after orthognathic surgery (T2). Subjects were divided into 2 groups according to two types of orthognathic surgery namely, the one-jaw surgery group who underwent bilateral sagittal splint ramus osteotomy (BSSRO) and the two-jaw surgery group who underwent Le Fort I osteotomy and BSSRO. Mimics 19.0 software are used for model reconstruction, landmark location and three-dimensional cephalometric analysis. Descriptive statistics and correlation analyses are used to investigate jaw hard tissue and lip soft tissue changes. RESULTS: In one-jaw group, the mandible shows changes in contour and position (p < 0.05), and the surgery causes changes of lip structure on the deviated side. While in two-jaw group, jaws only show changes in spatial position, and surgery changes contour of bilateral lips and nasolabial angle (p < 0.05). At the same time, lip symmetry increases significantly in both groups postoperatively. CONCLUSIONS: Orthognathic surgery can improve lip aesthetics in patients with skeletal class III malocclusion and facial asymmetry. However, changes induced by two surgical approaches are different. Surgeons should have a clear acquaintance with this difference to deal with different situations.

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Ramal inclination in the frontal plane after bimaxillary orthognathic surgery in skeletal class III facial asymmetry

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie ◽

10.1007/s00056-021-00344-9 ◽

2021 ◽

Author(s):

Eun-Hye Park ◽

Ae-Rim Ha ◽

Kyung-A Kim ◽

Ki-Ho Park ◽

Yoon-Goo Kang

Keyword(s):

Orthognathic Surgery ◽

Frontal Plane ◽

Facial Asymmetry ◽

Class Iii ◽

Skeletal Class ◽

Bimaxillary Orthognathic Surgery

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Cone-beam computed tomography analysis of transverse dental compensation in patients with skeletal Class III malocclusion and facial asymmetry

The Korean Journal of Orthodontics ◽

10.4041/kjod.2018.48.6.357 ◽

2018 ◽

Vol 48 (6) ◽

pp. 357 ◽

Cited By ~ 1

Author(s):

Ji-Yea Lee ◽

Sung-Hoon Han ◽

Hyeong-Seok Ryu ◽

Hee-Min Lee ◽

Sang-Cheol Kim

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Facial Asymmetry ◽

Cone Beam ◽

Class Iii ◽

Class Iii Malocclusion ◽

Skeletal Class ◽

Dental Compensation ◽

Tomography Analysis

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Orthodontic camouflage of skeletal Class III malocclusion with miniplate: a case report

Dental Press Journal of Orthodontics ◽

10.1590/2177-6709.21.4.089-098.oar ◽

2016 ◽

Vol 21 (4) ◽

pp. 89-98 ◽

Cited By ~ 4

Author(s):

Marcel Marchiori Farret ◽

Milton M. Benitez Farret ◽

Alessandro Marchiori Farret

Keyword(s):

Orthognathic Surgery ◽

Class Iii ◽

Class Iii Malocclusion ◽

Lower Lip ◽

Facial Profile ◽

Skeletal Class ◽

Mandibular Teeth ◽

One Year ◽

Angle Class Iii Malocclusion

ABSTRACT Introduction: Skeletal Class III malocclusion is often referred for orthodontic treatment combined with orthognathic surgery. However, with the aid of miniplates, some moderate discrepancies become feasible to be treated without surgery. Objective: To report the case of a 24-year-old man with severe skeletal Angle Class III malocclusion with anterior crossbite and a consequent concave facial profile. Methods: The patient refused to undergo orthognathic surgery; therefore, orthodontic camouflage treatment with the aid of miniplates placed on the mandibular arch was proposed. Results: After 18 months of treatment, a Class I molar and canine relationship was achieved, while anterior crossbite was corrected by retraction of mandibular teeth. The consequent decrease in lower lip fullness and increased exposure of maxillary incisors at smiling resulted in a remarkable improvement of patient's facial profile, in addition to an esthetically pleasing smile, respectively. One year later, follow-up revealed good stability of results.

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