scholarly journals Midfacial soft tissue changes after maxillary expansion using micro-implant-supported maxillary skeletal expanders in young adults: A retrospective study

2021 ◽  
Vol 51 (3) ◽  
pp. 145-156
Author(s):  
Hieu Nguyen ◽  
Jeong Won Shin ◽  
Hai-Van Giap ◽  
Ki Beom Kim ◽  
Hwa Sung Chae ◽  
...  
Keyword(s):  
Young Adults ◽  
Retrospective Study ◽  
Soft Tissue ◽  
Maxillary Expansion ◽  
Tissue Changes ◽  
Soft Tissue Changes

Soft-tissue changes after Class II malocclusion treatment using the Sander bite-jumping appliance: a retrospective study

2019 ◽  
Vol 68 (3) ◽  
Author(s):  
Michele Tepedino ◽  
Maria V. Della Noce ◽  
Domenico Ciavarella ◽  
Patrizia Gallenzi ◽  
Massimo Cordaro ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Soft Tissue ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Tissue Changes ◽  
Soft Tissue Changes

scholarly journals Three-dimensional evaluation of mid-facial soft tissue changes after expansion using micro-implant-supported maxillary skeletal expander

2020 ◽  
Author(s):  
Hieu Nguyen ◽  
Jeong Won Shin ◽  
Hai-Van Giap ◽  
Ki Beom Kim ◽  
Hwa Sung Chae ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Computerized Tomography ◽  
Soft Tissues ◽  
Cone Beam ◽  
Maxillary Expansion ◽  
Hard Tissue ◽  
Facial Soft Tissue ◽  
Tissue Changes ◽  
Cone Beam Computerized Tomography ◽  
Soft Tissue Changes

Abstract Background The aim of this study was to assess the mid-facial soft tissue changes induced by a micro-implant-supported maxillary skeletal expander in late adolescents and young adults by cone-beam computerized tomography and the correlations between hard and soft tissue changes after expansion with maxillary skeletal expander.Subjects and methods Twenty patients with maxillary transverse deficiency treated with maxillary skeletal expander were selected. Cone-beam computerized tomography images taken before and after expansion were superimposed to measure the changes in soft and hard tissue landmarks.Results Anterior nasal spine, posterior nasal spine, and alveolar bone width were significantly increased after expansion with maxillary skeletal expander (p < 0.05). The average lateral movement of the cheek points was 1.13 ± 0.33 mm (left) and 1.41 ± 0.39 mm (right), while that of the alar curvature points was 1.07 ± 0.72 mm (left) and 1.06 ± 0.68 (right) (p < 0.05). The average forward displacement of the cheek points was 0.42 ± 0.66 mm (left) and 0.60 ± 0.58 mm (right), whereas that of the alar curvature points was 0.80 ± 0.67 mm (left) and 0.68 ± 0.56 mm (right) side (p < 0.05). The average downward movement of the subnasale was 0.40 ± 0.37 mm (p < 0.05). The changes in cheek points and alar curvature points on both sides significantly correlated with hard-tissue changes (p < 0.05).Conclusions Maxillary expansion using maxillary skeletal expander resulted in significant lateral and forward movement of soft tissues of the cheek and alar curvature points on both sides and correlated with the maxillary suture opening at the anterior and posterior nasal spines.

Soft Tissue Alterations Following Protraction Approaches with and without Rapid Maxillary Expansion

2014 ◽  
Vol 38 (3) ◽  
pp. 277-283 ◽  
Author(s):  
N Canigur Bavbek ◽  
B Balos Tuncer ◽  
T Tortop
Keyword(s):  
Soft Tissue ◽  
Rapid Maxillary Expansion ◽  
Chronological Age ◽  
Control Group ◽  
Class Iii ◽  
Maxillary Expansion ◽  
Upper Lip ◽  
Lateral Cephalograms ◽  
Tissue Changes ◽  
Soft Tissue Changes

The aim of this study was to compare the soft tissue changes influenced by reverse headgear therapy with (RHg+RME) or without (RHg) rapid maxillary expansion with each other and with an untreated Class III control group (C). Study design: RHg group (10 girls, 6 boys, mean chronological age 11.1 years), RHg+RME group (12 girls, 4 boys, mean chronological age 10.8 years) and C group (7 girls, 11 boys, mean chronological age 10.2 years) comprised skeletally Class III patients with maxillary deficiency. Soft tissue measurements were made on lateral cephalograms at the beginning and at the end of the treatment and observation periods. Changes within each group and the differences between the groups were analyzed by paired t-test; the differences between the groups were determined by variance analysis and Duncan test with a significance level p&lt;0.05. Results: The sagittal depth of nose and maxilla, upper lip height and protrusion were significantly increased in treatment groups and the differences were significant when compared to control group (p&lt;0.05). Conclusion: Forward movement of upper lip was more prominent in RHg group. Reverse headgear treatment with or without RME revealed significant soft tissue changes when compared with a growing Class III control group with the same skeletal characteristics.

scholarly journals Facial soft-tissue changes after rapid maxillary expansion analyzed with 3-dimensional stereophotogrammetry: A randomized, controlled clinical trial

2016 ◽  
Vol 86 (6) ◽  
pp. 934-942 ◽  
Author(s):  
Asli Baysal ◽  
Mehmet Ali Ozturk ◽  
Ahmet Oguz Sahan ◽  
Tancan Uysal
Keyword(s):  
Treatment Group ◽  
Soft Tissue ◽  
Untreated Control ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Maxillary Expansion ◽  
Alar Base ◽  
Tissue Changes ◽  
Soft Tissue Changes

ABSTRACT Objective: To evaluate three-dimensional (3-D) soft tissue facial changes following rapid maxillary expansion (RME) and to compare these changes with an untreated control group. Materials and Methods: Patients who need RME as a part of their orthodontic treatment were randomly divided into two groups of 17 patients each. Eligibility criteria included having maxillary transverse deficiency with crossbite, and to be in the normal range according to body mass index. In the first group (mean age  =  13.4 ± 1.2 years), expansion was performed. The second group received no treatment initially and served as untreated control (mean age  =  12.8 ± 1.3 years). Skeletal and soft tissue changes were evaluated using posteroanterior cephalograms and 3-D facial images. The primary outcome of this study was to assess the soft tissue changes. The secondary outcomes were evaluation hard tissue and soft tissue relations. Randomization was done with preprepared random number tables. Blinding was applicable for outcome assessment only. MANOVA, t-test, and correlation analyses were used (P  =  .05). Results: In both groups, there was a general trend of increase for the transverse skeletal measurements, but these increases were more limited in the control group. Alar base width was greater in the treatment group (P  =  .002). Pogonion soft tissue point (P  =  .022) was located more posteriorly in the expansion group compared with the control group. Conclusions: Soft tissue changes between groups were similar, except for the alar base, which became wider in the treatment group. Weak correlations were found between the skeletal and soft tissue changes.

scholarly journals Comparison of Dentoskeletal and Soft Tissue Changes Between Tooth-Borne and Tooth-Bone-Borne Hybrid Nonsurgical Rapid Maxillary Expansions in Adults: A Retrospective Observational Study

2021 ◽  
Author(s):  
Jung-Sub An ◽  
Bo-Yeon Seo ◽  
Sug-Joon Ahn
Keyword(s):  
Soft Tissue ◽  
Vertical Dimension ◽  
Skeletal Anchorage ◽  
Maxillary Expansion ◽  
Sex Distribution ◽  
Number Of Patients ◽  
Lateral Cephalograms ◽  
Expansion Protocol ◽  
Tissue Changes ◽  
Soft Tissue Changes

Abstract Background Despite the gradual increase in the use of rapid maxillary expansion (RME), specifically RME with the aid of skeletal anchorage in adults, there have been no reports comparing dentoskeletal and soft tissue changes between nonsurgical tooth-borne and tooth-bone-borne RMEs in adults. This study aimed to analyse differences in dentoskeletal and soft tissue changes between tooth-borne and tooth-bone-borne RMEs using a similar appliance design and the same expansion protocol in adult patients. Methods Twenty-one patients with tooth-borne expansion (a conventional expansion screw with two premolars and two molar bands for dental anchorage [T-RME]) and the same number of patients with tooth-bone-borne hybrid expansion (a conventional expansion screw with two premolar and two molar bands for dental anchorage and four mini-implants in the palate for skeletal anchorage [H-RME]) were included. Dentoskeletal and soft tissue variables at pretreatment (T1) and after expansion (T2) were measured using posteroanterior and lateral cephalograms and frontal photographs. The sex distribution of the two groups was analysed using the chi-square test, and the change after RME in each group was evaluated using the Wilcoxon signed-rank test. Differences in pretreatment age, expansion duration, post-expansion duration, and dentoskeletal and soft tissue changes after RME between the two groups were determined using the Mann–Whitney U test. Results There were no significant differences in the expansion protocol, pretreatment conditions, and sex distribution between the two groups. Despite similar degrees of dental expansion at the crown level between the two groups, H-RME induced increased skeletal and parallel expansion of the maxilla compared to T-RME. After expansion, H-RME demonstrated increased forward displacement of the maxilla without significant changes in the vertical dimension, while T-RME exhibited increased backward displacement of the mandible, increased vertical dimension, and decreased overbite. Both groups showed significant retroclination and extrusion of the maxillary incisors without significant intergroup differences. There were no significant soft tissue changes between the two groups. Conclusion This study suggests that using skeletal anchorage in RME may induce increased skeletal and parallel expansion of the maxilla without significant effects on the vertical dimension.

Three-dimensional evaluation of soft tissue changes in the orofacial region after tooth-borne and bone-borne surgically assisted rapid maxillary expansion

2013 ◽  
Vol 17 (9) ◽  
pp. 2017-2024 ◽  
Author(s):  
Rania M. Nada ◽  
Bram van Loon ◽  
Thomas J.J. Maal ◽  
Stefaan J. Bergé ◽  
Yehya A. Mostafa ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Three Dimensional ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Orofacial Region ◽  
Tissue Changes ◽  
Soft Tissue Changes
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