scholarly journals The Use of Invisalign® System in the Management of the Orthodontic Treatment before and after Class III Surgical Approach

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Renato Pagani ◽  
Fabrizio Signorino ◽  
Pier Paolo Poli ◽  
Pietro Manzini ◽  
Irene Panisi
Keyword(s):  
Orthodontic Treatment ◽  
Present Report ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Lateral Deviation ◽  
Functional Balance ◽  
Before And After ◽  
Fixed Appliances ◽  
The Stability

The approach to skeletal dysmorphisms in the maxillofacial area usually requires an orthodontic treatment by means of fixed appliances, both before and after the surgical phase. Since its introduction, Invisalign system has become a popular treatment choice for the clinicians because of the aesthetics and comfort of the removable clear aligners compared with the traditional appliances. Therefore, the aim of the present report was to illustrate the management of a malocclusion by means of Invisalign system associated with the traditional surgical technique. The present paper shows a case of a 23-year-old male patient characterized by a Class III malocclusion with lateral deviation of the mandible to the left side and cross-bite on teeth 2.2, 2.3, and 2.4. Invisalign system was used during the pre- and postsurgical phases rather than fixed appliances. The posttreatment cephalometric analysis emphasized the stability of the dental and skeletal symmetry corrections, occlusion and functional balance, over a 6-year follow-up. The results achieved at the end of the treatment showed how Invisalign can be effective in the management of the orthodontic phases in orthognathic surgery. The follow-up after 6 years emphasizes the stability of the treatment over time.

scholarly journals Modern trends in Class III orthognathic treatment: A time series analysis

2016 ◽  
Vol 87 (2) ◽  
pp. 269-278 ◽  
Author(s):  
Chang-Hoon Lee ◽  
Hyun-Hee Park ◽  
Byoung-Moo Seo ◽  
Shin-Jae Lee
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
Orthognathic Surgery ◽  
Orthodontic Treatment ◽  
Treatment Time ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Time Of Surgery ◽  
Series Analysis ◽  
Before And After

ABSTRACT Objective: To examine the current trends in surgical-orthodontic treatment for patients with Class III malocclusion using time-series analysis. Materials and Methods: The records of 2994 consecutive patients who underwent orthognathic surgery from January 1, 2004, through December 31, 2015, at Seoul National University Dental Hospital, Seoul, Korea, were reviewed. Clinical data from each surgical and orthodontic treatment record included patient's sex, age at the time of surgery, malocclusion classification, type of orthognathic surgical procedure, place where the orthodontic treatment was performed, orthodontic treatment modality, and time elapsed for pre- and postoperative orthodontic treatment. Results: Out of the orthognathic surgery patients, 86% had Class III malocclusion. Among them, two-jaw surgeries have become by far the most common orthognathic surgical treatment these days. The age at the time of surgery and the number of new patients had seasonal variations, which demonstrated opposing patterns. There was neither positive nor negative correlation between pre- and postoperative orthodontic treatment time. Elapsed orthodontic treatment time for both before and after Class III orthognathic surgeries has been decreasing over the years. Conclusion: Results of the time series analysis might provide clinicians with some insights into current surgical and orthodontic management.

Ausência de um incisivo inferior – e a coincidência das linhas médias dentárias? Relato de caso

2021 ◽  
Vol 14 (53) ◽  
pp. 70-78
Author(s):  
Priscilla Carvalhal de Oliveira ◽  
Nathalia Campos Dell’Orto Cardoso ◽  
José Nelson Mucha
Keyword(s):  
Orthodontic Treatment ◽  
Excellent Result ◽  
Good Alternative ◽  
Class Iii ◽  
Lower Incisor ◽  
Aesthetic Results ◽  
Fixed Appliances ◽  
The Right ◽  
Treatment Alternatives

Introduction: The main problem caused by the absence of only one lower incisor is the occurrence of tooth volume discrepancy (Bolton) that may present several treatment alternatives. Objective: This article aims to present a case report with congenital absence of a lower incisor of a patient undergoing orthodontic treatment with excellent occlusal, functional, and aesthetic results. As well as to discuss the problem of anterior tooth volume discrepancy (Bolton) and attainment or not of coincident median lines. Treatment performed: Complete orthodontic treatment with fixed appliances (Edgewise Standard, 0.022x0.028”) in both arches. Use of Class II oriented elastics on the right side to move the lower right canine to the position of the lateral tooth, and so on successively with the other teeth of this lower hemiarch, and to obtain coincident dental midlines. Result: Excellent result with great intercuspation and “apparent” coincidence of the dental midline with Angle’s Class III molar relationship in the right side, and stable result in several years of follow-up. Conclusions: Moving of the entire lower hemiarch of one side to mesial with coincidence of midlines with stable occlusal contacts and functional occlusion can be a good alternative.

scholarly journals Lip Morphological Changes and Differences before and after Orthodontic Treatment

2013 ◽  
Vol 1 (1) ◽  
pp. 5-12
Author(s):  
MR Islam ◽  
T Kitahara ◽  
L Naher ◽  
A Nakasima ◽  
I Takahashi
Keyword(s):  
Adult Female ◽  
Orthodontic Treatment ◽  
Morphological Changes ◽  
Class Ii ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Female Patients ◽  
Significant Difference ◽  
Before And After

Objectives: The objective of this study is to test the hypothesis that there is a difference in the morphology of the lips of Class II div 1 and Class III malocclusion, before and after orthodontic treatment. Methods: The sample subjects included 20 adult female patients with Angle Class II div 1 malocclusion and 30 adult female patients with dento-skeletal Class III malocclusion. Frontal photographs were taken both before and after orthodontic and/or orthognathic treatment. Thirty-five landmarks were placed on each tracing made from the photograph. Thereafter, landmarks were digitized into an x and y coordinates system with the subnasal point as the origin. The Class II pretreatment and posttreatment groups of rest and smile conditions were compared with the Class III group respectively, using t-tests. Results: In the Class II pretreatment group, upper and lower lips positioned downward than that in the Class III group. When smiling, there was no statistically significant difference between the two groups before treatment, whereas after orthodontic treatment both Class II and Class III groups showed the significant difference at rest and on smiling conditions. On smiling condition Class III group showed more upwards and lateral movement of the mouth corners than Class II group. Conclusion: Orthodontic treatment induced larger amount in movement of lips at smiling in both Class II and III patients, which may reflect the emotional changes in the patients after treatment. DOI: http://dx.doi.org/10.3329/bjodfo.v1i1.15971 Ban J Orthod & Dentofac Orthop, October 2010; Vol-1, No.1, 5-12

New Splint for Orthognathic Surgery

2011 ◽  
Vol 2 (2) ◽  
pp. 143-149
Author(s):  
SE Shekar ◽  
K Ranganath ◽  
B Gunasheela ◽  
N Supriya
Keyword(s):  
Orthognathic Surgery ◽  
Orthodontic Treatment ◽  
Posterior Part ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Stomatognathic System

ABSTRACT A case of skeletal class III malocclusion treated by both orthodontics and orthognathic surgery is presented. In this case, body osteotomy has been done so as to maintain the natural integrity of the posterior part of stomatognathic system, including the TMJ. A new splint was designed to position and align the sectioned mandibular segments so as to assist in easy fixation and obtain proper occlusion. The postsurgical orthodontic treatment was minimal and no relapse was observed even after 1 year follow-up.

scholarly journals Nonsurgical miniscrew-assisted rapid maxillary expansion results in acceptable stability in young adults

2016 ◽  
Vol 86 (5) ◽  
pp. 713-720 ◽  
Author(s):  
Sung-Hwan Choi ◽  
Kyung-Keun Shi ◽  
Jung-Yul Cha ◽  
Young-Chel Park ◽  
Kee-Joon Lee
Keyword(s):  
Young Adults ◽  
Treatment Modality ◽  
Orthodontic Treatment ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Initial Examination ◽  
The Stability ◽  
Maxillary Deficiency ◽  
Time Point

ABSTRACT Objective:  To evaluate the stability of nonsurgical miniscrew-assisted rapid maxillary expansion (MARME) in young adults with a transverse maxillary deficiency. Materials and Methods:  From a total of 69 adult patients who underwent MARME followed by orthodontic treatment with a straight-wire appliance, 20 patients (mean age, 20.9 ± 2.9 years) with follow-up records (mean, 30.2 ± 13.2 months) after debonding were selected. Posteroanterior cephalometric records and dental casts were obtained at the initial examination (T0), immediately after MARME removal (T1), immediately after debonding (T2), and at posttreatment follow-up (T3). Results:  Suture separation was observed in 86.96% of subjects (60/69). An increase in the maxillary width (J-J; 1.92 mm) accounted for 43.34% of the total expansion with regard to the intermolar width (IMW) increase (4.43 mm; P < .001) at T2. The amounts of J-J and IMW posttreatment changes were −0.07 mm (P > .05) and −0.42 mm (P  =  .01), respectively, during retention. The postexpansion change in middle alveolus width increased with age (P < .05). The postexpansion change of interpremolar width (IPMW) was positively correlated with the amount of IPMW expansion (P < .05) but not with IMW. The changes of the clinical crown heights in the maxillary canines, first premolars, and first molars were not significant at each time point. Conclusions:  Nonsurgical MARME can be a clinically acceptable and stable treatment modality for young adults with a transverse maxillary deficiency.

scholarly journals Sexual dimorphism in the long-term stability (10 years) of skeletal Class III treatment

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Natalia Tejedor ◽  
Conchita Martín ◽  
José Antonio Alarcón ◽  
María Dolores Oteo-Calatayud ◽  
Juan Carlos Palma-Fernández
Keyword(s):  
Sexual Dimorphism ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Term Stability ◽  
Long Term Stability ◽  
Fixed Appliances ◽  
Males And Females ◽  
Class Iii Treatment

Abstract Background Class III malocclusion is associated with high sexual dimorphism, especially in individuals older than 13 years of age, with significant differences in growth between males and females during the pubertal and postpubertal stages, and in adulthood. The aim of this research was to examine differences between males and females in long-term stability (10 years) of treatment for skeletal Class III malocclusion. Methods Thirty patients (15 males and 15 females) with skeletal Class III malocclusion, who had been treated with rapid maxillary expansion (RME) combined with face mask protraction followed by fixed appliances, were selected sequentially. Thirty patients (15 males and 15 females) with skeletal Class I and mesofacial patterns treated only with fixed appliances for dental problems served as the control group. Differences between groups and sexes were evaluated using lateral cephalograms taken at the start of treatment (T0), immediately after the end of treatment (T1), and after 10 years (T2). The long-term treatment success rate was calculated. Results Ten years after Class III treatment, overjet and overbite relapse occurred similarly in females (− 0.68 ± 0.7 mm; − 0.38 ± 0.75 mm, respectively) and males (− 1.09 ± 1.47 mm; − 0.64 ± 0.9 mm, respectively); the ANB angle and Wits appraisal became significantly more negative in males (− 1.37 ± 1.06°; − 2.7 ± 2.53 mm) than in females (− 0.18 ± 1.26°; − 0.46 ± 1.94 mm). The success rate was 73.3% in males and 80% in females. Conclusions Significant differences in the long-term stability of Class III treatment outcomes have been found between males and females, with a larger skeletal Class III relapse and lower long-term success rates in males.

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