scholarly journals Comparison of Soft Tissue Changes Produced by Two Different Appliances on Mixed Dentition Children

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Nashid Fareen ◽  
Mohammad Khursheed Alam ◽  
Mohd Fadhli Khamis ◽  
Norehan Mokhtar
Keyword(s):  
Soft Tissue ◽  
Gender Disparity ◽  
Mixed Dentition ◽  
Age Difference ◽  
Class Iii ◽  
Upper Lip ◽  
Cross Sectional ◽  
Lower Lip ◽  
Tissue Changes ◽  
Soft Tissue Changes

Objective. This study was focused on comparing and analyzing the soft tissue changes induced by Reverse Twin-Block (RTB) and Reverse Pull Face Mask (RPFM) in early and late mixed dentition Malay children having Class III malocclusion. Methods. This cross-sectional study includes a total sample of 95 Malay children of both early (8-9 years) and late (10-11 years) mixed dentition stages. The comparison was between 49 samples treated by RTB and 46 samples treated by RPFM. Both pre- and posttreatment changes were assessed with Holdaway’s analysis using the CASSOS software. In each cephalogram, 71 anatomic landmarks were traced. Descriptive and multiple regression analyses were performed for statistical evaluation. Results. Statistically significant changes were noticed in soft tissue facial angle, subnasale to H-line, skeletal profile convexity, upper lip strain, H-line angle, lower lip to H-line, and inferior sulcus to H-line measurements. Gender disparity was noticed in upper lip strain. Other significant changes were influenced by the type of appliance. However, the mean differences were minute to notice clinically. Age difference did not have any effect on the treatment changes. Conclusions. RPFM revealed treatment outcome with more protruded upper lip than RTB.

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<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<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 Comparative evaluation of soft tissue changes in Class I borderline patients treated with extraction and nonextraction modalities

2016 ◽  
Vol 21 (4) ◽  
pp. 50-59 ◽  
Author(s):  
Aniruddh Yashwant V. ◽  
Ravi K. ◽  
Edeinton Arumugam
Keyword(s):  
Soft Tissue ◽  
Class I ◽  
Upper Lip ◽  
Lower Lip ◽  
Borderline Cases ◽  
Skeletal Malocclusion ◽  
Nasolabial Angle ◽  
Borderline Patients ◽  
Tissue Changes ◽  
Soft Tissue Changes

Abstract Objective: To compare soft tissue changes in Class I borderline cases treated with extraction and nonextraction modalities. Methods: A parent sample of 150 patients with Class I dental and skeletal malocclusion (89 patients treated with premolar extraction and 61 patients without extraction) was randomly selected and subjected to discriminant analysis which identified the borderline sample of 44 patients (22 extraction and 22 nonextraction patients). Pretreatment and post-treatment cephalograms of the borderline subsample were analyzed using 22 soft tissue parameters. Results: Upper and lower lips were more retracted and thickness of the upper lip increased more in the borderline extraction cases (p < 0.01). The nasolabial angle became more obtuse and the interlabial gap was reduced in the borderline extraction cases (p < 0.01). Lower lip, interlabial gap and nasolabial angle showed no changes in the borderline nonextraction cases. Conclusion: The soft tissue parameters which can be used as guideline in decision making to choose either extraction or nonextraction in Class I borderline cases are upper and lower lip protrusion in relation to the E-plane and Sn-Pg' line, lower lip protrusion in relation to the true vertical line (TVL), upper lip thickness, nasolabial angle and interlabial gap.

scholarly journals Soft tissue changes after mandibular setback and bimaxillary surgery in Class III patients

2013 ◽  
Vol 83 (5) ◽  
pp. 817-823 ◽  
Author(s):  
Davor Jokić ◽  
Dražen Jokić ◽  
Vedran Uglešić ◽  
Darko Macan ◽  
Predrag Knežević
Keyword(s):  
Soft Tissue ◽  
Class Iii ◽  
Upper Lip ◽  
Le Fort ◽  
Soft Tissue Change ◽  
Before And After ◽  
Tissue Changes ◽  
Bimaxillary Surgery ◽  
Soft Tissue Changes ◽  
Le Fort I

ABSTRACT Objective: To evaluate the relationship between soft tissue and bone structure for Class III patients before and after bilateral sagittal split osteotomy (BSSO) and bimaxillary orthognathic surgery; to determine the impact of other factors on soft tissue change; and to evaluate correlations between thickness of tissue before surgery, SNA, SNB, and ANB angles, and soft tissue changes. Materials and Methods: The study included 78 Class III patients treated only with BSSO or with BSSO and Le Fort I osteotomy. Lateral cephalograms were taken before and 3 months to 1 year after surgery. After all points of the Zagreb82 and Legan and Burstone profile analysis were traced, the ratio of five soft tissue points before and after surgery was evaluated. Results: Soft tissue between points Sn and A and upper lip showed statistically significant changes for patients treated with bimaxillary surgery and BSSO. Only gender had an influence on soft tissue change. The correlation between soft tissue thickness and changes after surgery was significant. A change in SNB angle correlated with upper lip thickness for patients treated with BSSO but not for patients treated with BSSO and Le Fort I. SNA angle changes correlated with soft tissue changes between points Sn and A. Conclusion: Results of this study show soft tissue changes after BSSO and BSSO and Le Fort I and eliminate the deficiencies that were indicated in the meta-analysis of soft tissue changes from a previous study.

scholarly journals Hard and Soft Tissue Changes in Patients with Borderline Class III Malocclusion after Maxillary Advancement or Mandibular Setback Surgery: A Cross-Sectional Study

2020 ◽  
pp. 1-6
Author(s):  
Abdolreza Jamilian ◽  
Ali Fateh ◽  
Ludovica Nucci ◽  
Abdolreza Jamilian ◽  
Fabrizia d’Apuzzo ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Cross Sectional Study ◽  
Distributed Data ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Cross Sectional ◽  
Mandibular Setback ◽  
Maxillary Advancement ◽  
Tissue Changes ◽  
Soft Tissue Changes

Background: The primary aim of this study was to assess the esthetic profile and hard and soft tissue changes in patients with borderline class III malocclusion after maxillary advancement or mandibular setback surgery. The secondary aim was also to evaluate the patients’ face attractiveness after different surgical treatment. Materials and Methods: This observational cross-sectional study evaluated 50 patients with borderline class III malocclusion with a mean age of 29 ± 4 years treated from 2014 to 2019. They were divided into two groups based on the type of surgical treatment underwent: 13 patients were treated with mandibular setback (4 males, 9 females), and 37 patients with maxillary advancement (16 males, 21 females). Hard and soft tissue parameters were measured pre and postoperative evaluation. Frontal and profile photographs of these patients were judged by 15 orthodontists, 15 oral and maxillofacial surgeons, and 15 laypeople before and after surgery. The most and the least attractive profiles were scored 10 and 0, respectively. T-test was used to analyze normally distributed data while Mann-Whitney test for non-normally distributed data. The Kruskal-Wallis test was used to compare the esthetic judgement between the three groups of observers. Pairwise comparisons were carried out using the Mann-Whitney test. Results: Nasolabial angle, SNA, U1/NA (°), U1/NA (mm), L1/NB (°) and L1/NB (mm) were significantly different between the two groups p<0.04, p<0.001, p<0.001, p<0.005, p<0.07, p<0.08, p<0.01 respectively Orthodontists, oral and maxillofacial surgeons, and laypeople all gave a lower score to mandibular setback and higher score to maxillary advancement in terms of facial profile esthetics (P<0.001). Conclusion: Some cephalometric parameters were significantly different between the two groups. The maxillary advancement seemed to provide better results in facial profile esthetics than mandibular setback for patients with borderline class III malocclusion.

scholarly journals Dentoskeletal and soft tissue changes associated with miniscrew anchorage in customized lingual orthodontics

2018 ◽  
Vol 47 (1) ◽  
pp. 84-95
Author(s):  
Dawei Liu ◽  
Jing Li ◽  
Feifei Lei ◽  
Xuedong Wang ◽  
Yanheng Zhou
Keyword(s):  
Soft Tissue ◽  
Clinical Effectiveness ◽  
Upper Lip ◽  
Lingual Orthodontics ◽  
Premolar Extraction ◽  
Anterior Teeth ◽  
Mandibular Plane ◽  
Space Closure ◽  
Tissue Changes ◽  
Soft Tissue Changes

Objectives The goal of this study was to analyze skeletal, dental, and soft tissue changes of patients treated with customized lingual systems and to evaluate the clinical effectiveness of miniscrew anchorage. Methods Nine upper first premolar extraction patients who were treated with customized lingual appliances were included in this study. Miniscrews were used for reinforcement of molar anchorage. Cephalometric films and study models were obtained before treatment (T1), after alignment (T2), and after treatment (T3). Treatment effects were analyzed by cephalometric radiographs and study models. Results The upper anterior teeth were retracted significantly at T2 and T3 (4.41 ± 4.14 mm and 5.51 ± 2.48 mm, respectively). During space closure, the upper first molars showed slight mesial movement (1.50 ± 1.97 mm). The intercanine width of the upper arch increased at T2 (1.59 ± 1.81 mm), but decreased at T3 (0.11 ± 1.00 mm). The sella-nasion-A, A-nasion-B, and mandibular plane angles were not significantly changed at T3. The upper lip showed continuous retraction at both T2 and T3 (1.40 ± 1.46 mm and 2.32 ± 2.48 mm, respectively). Conclusions By using miniscrew anchorage for lingual orthodontics, patients’ dental and soft tissue changes considerably improved and molar anchorage was reinforced.

scholarly journals Study of soft tissue changes in the upper lip and nose after backward movement of the maxilla in orthognathic surgery

2020 ◽  
Vol 46 (6) ◽  
pp. 385-392
Author(s):  
Suyun Seon ◽  
Hyun-Woo Lee ◽  
Bong-Jin Jeong ◽  
Baek-Soo Lee ◽  
Yong-Dae Kwon ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Orthognathic Surgery ◽  
Upper Lip ◽  
Tissue Changes ◽  
Soft Tissue Changes

Soft-tissue changes associated with different surgical procedures for treating class III patients

2014 ◽  
Vol 75 (4) ◽  
pp. 299-307 ◽  
Author(s):  
M. Ghassemi ◽  
A. Jamilian ◽  
J.R. Becker ◽  
A. Modabber ◽  
U. Fritz ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Surgical Procedures ◽  
Class Iii ◽  
Tissue Changes ◽  
Soft Tissue Changes

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.

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