Soft tissue changes after a mandibular osteotomy for symmetric skeletal class III malocclusion

Odontology ◽  
2016 ◽  
Vol 105 (3) ◽  
pp. 375-381
Author(s):  
Seigo Ohba ◽  
Haruka Kohara ◽  
Takamitsu Koga ◽  
Takako Kawasaki ◽  
Kei-ichirou Miura ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mandibular Osteotomy ◽  
Skeletal Class ◽  
Tissue Changes ◽  
Soft Tissue Changes

scholarly journals Changes in soft tissue profile during the treatment of Class III malocclusion treated with Class III activator

2013 ◽  
Vol 2 (2) ◽  
pp. 24-29
Author(s):  
MSA Mamun ◽  
MLA Hyder ◽  
MZ Hossain
Keyword(s):  
Soft Tissue ◽  
Treated Patient ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Facial Profile ◽  
Skeletal Class ◽  
Soft Tissue Profile ◽  
Tissue Changes ◽  
Soft Tissue Changes ◽  
Cephalometric Study

Objective: This longitudinal retrospective cephalometric study was undertaken in an attempt to evaluate the effect of Class III activator on the soft tissue structures in subjects with skeletal Class III. Methods: The material consisted of cephalometric films of 26 Class III patients (13females and 13 males, with a mean age of 13.58±4.38 years). Each treated patient was matched before treatment with Class III subject for sex and age. Differences at T1 and T2 were examined using paired t-test. Results: After treatment the patients' soft tissue profile improved significantly compare with before treatment. Conclusion: Soft tissue changes were found in patients treated by Class III activator in skeletal Class III patients. Clinical relevance: Class III activator may be an efficient method to improving soft tissue facial profile in Skeletal Class III malocclusion. DOI: http://dx.doi.org/10.3329/bjodfo.v2i2.16160 Ban J Orthod & Dentofac Orthop, April 2012; Vol-2, No.2, 24-29

Three-dimensional analysis of lip soft tissue changes and related jaw changes in patients with skeletal class III malocclusion and facial asymmetry

2021 ◽  
pp. 1-14
Author(s):  
Wenjie Xu ◽  
Hao Tan ◽  
Xuehuan Meng ◽  
Ye Ming ◽  
Tao Wang ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Orthognathic Surgery ◽  
Three Dimensional ◽  
Facial Asymmetry ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Tissue Changes ◽  
Soft Tissue Changes ◽  
Jaw 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.

Skeletal, Dental and Soft Tissue Changes in Postural Class III Malocclusion Treated with a Maxillary Removable Appliance

2007 ◽  
Vol 31 (2) ◽  
pp. 149-152
Author(s):  
Elham Abu Alhaija
Keyword(s):  
Soft Tissue ◽  
Treated Patient ◽  
Treated Group ◽  
T Test ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Soft Tissue Profile ◽  
Tissue Changes ◽  
Soft Tissue Changes ◽  
Removable Appliance

Objective: This longitudinal retrospective cephalometric study was undertaken in an attempt to evaluate the effect of upper removable appliances on the hard and soft tissue structures in subjects with postural Class III. Methods: The material consisted of cephalometric films of 17 Class III patients (8 females and 9 males, with a mean age of 10.10 ± 1.63). Each treated patient was matched before treatment with Class III subject for sex and age. Differences in treated group at T1 and T2 and between treated and untreated groups were examined using paired t-test and independent t-test respectively. Results: Treated and untreated Class III subjects differed in mandibular prognathism (SNB, P&lt;0.01). Upper incisors proclined and inter-incisal angle reduced during treatment (P&lt;0.001). Soft tissue A point moved anteriorly as maxillary incisors were proclined (P&lt;0.05). Soft tissue profile was improved (NNP, P&lt;0.05; NAP, P&lt;0.01). Conclusion: Skeletal, dental and soft tissue changes were found in patients treated by upper removable appliance in postural Class III patients. Clinical relevance: upper removable appliance is an efficient method to procline upper incisors in postural Class III malocclusion and may be of greater influence in improving soft tissue profile.

Submandibular soft tissue changes after mandibular set-back surgery in skeletal Class III patients

2019 ◽  
Vol 120 (4) ◽  
pp. 301-309
Author(s):  
B.-Y. Yeo ◽  
J.-S. Kim ◽  
J. Kim ◽  
J.-Y. Kim ◽  
W.-W. Jang ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Class Iii ◽  
Skeletal Class ◽  
Back Surgery ◽  
Tissue Changes ◽  
Soft Tissue Changes
Sign in / Sign up

Export Citation Format

Share Document