The effectiveness of cortical anchorage in patients treated with Class II elastics

1992 ◽  
Vol 102 (1) ◽  
pp. 97
Keyword(s):  
Class Ii ◽  
Cortical Anchorage ◽  
Class Ii Elastics

scholarly journals Comparative Study on the Efficiency of Intermaxillary Elastic Polymers used in the Treatment of Skeletal Class II Malocclusions in Growing Patients

2019 ◽  
Vol 56 (2) ◽  
pp. 341-345 ◽  
Author(s):  
Luminita Ligia Vaida ◽  
Raluca Dima ◽  
Emilia Albinita Cuc ◽  
Bianca Maria Negrutiu ◽  
Abel Emanuel Moca ◽  
...  
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Therapeutic Approaches ◽  
Mandibular Growth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Orthodontic Patients ◽  
Group 2 ◽  
Class Ii Elastics ◽  
Group 1

The aim of this study was to evaluate the efficiency in using intermaxillary elastics to stimulate mandibular growth and advancement in orthodontic patients diagnosed with skeletal Class II malocclusion as well as to compare the use of these Class II elastics in two different therapeutic approaches. The sample consisted of 60 orthodontic patients aged 10-15 years, 34 girls and 26 boys. The sample was divided into two equal groups (each consisting of 30 patients). Patients belonging to the first group (Group 1) were subjected to 1/4�� - 6.0 oz elastics and were advised to change the elastic every 24 hours. Patients belonging to the second group (Group 2) were subjected to 1/4�- 4.5 oz elastics but with a recommendation to change the elastics every 12 hours. In order to evaluate the effectiveness of these two types of Class II elastics on mandibular growth and advancement, the value of the SNB angle at the beginning of the treatment (T1) was compared with the value of the SNB angle after 5 months of wearing intermaxillary elastics (T2). All patients showed statistically significant increased values of the SNB angle during the orthodontic treatment (p[0.001). Patients in Group 2 showed a significantly higher statistical increase (p[0.05) than patients in Group 1.

scholarly journals Influence of Class II Elastics on Centric Relation and Centric Occlusion Discrepancy after Orthodontic Treatment

2017 ◽  
Vol 11 (4) ◽  
pp. 487-493
Author(s):  
Érico Marcel Gomes de-Carvalho ◽  
Maria Rita Esteves ◽  
Martinho Campolina Rebello Horta ◽  
Giordani Santos Silveira ◽  
Paulo Isaías Seraidarian
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Centric Relation ◽  
Class Ii Elastics ◽  
Centric Occlusion

scholarly journals Two Different Applications of Class II Elastics with Nonextraction Segmental Techniques

2007 ◽  
Vol 77 (4) ◽  
pp. 694-700 ◽  
Author(s):  
Aslihan Uzel ◽  
Ilter Uzel ◽  
M. Serdar Toroglu
Keyword(s):  
Treatment Time ◽  
Control Period ◽  
Class Ii ◽  
Control Group ◽  
Treatment Groups ◽  
Facial Height ◽  
Lateral Cephalograms ◽  
Division 1 ◽  
The Mean ◽  
Class Ii Elastics

Abstract Objective: To evaluate the relative effects of Class II elastics applied directly with utility arches (UAs) or with the Reciprocal Mini–Chin Cup (RMCC) appliance. Materials and Methods: Thirty patients with Class II division 1 malocclusion were included. Fifteen of them were treated with the RMCC appliance and the other 15 treated with Class II elastics on UAs. Lateral cephalograms of an additional 15 untreated persons having the same characteristics as the treatment groups were used as a control group. Results: The mean control period was 10 months. Class I molar and canine relationships were achieved in a mean treatment time of 4.6 months with the RMCC appliance and in 8.5 months with the elastics on UAs. The amount of overjet reduction was 4.7 mm in the RMCC group (87.87% dental) and 5.2 mm in the UA group (80.76% dental). The molar correction was 4.5 mm in the RMCC group (87.36% dental) and 2.0 mm in the UA group (51.47% dental). The anterior lower facial height increased in both of the treatment groups. Conclusions: The RMCC appliance is a valuable alternative for Class II elastic use in Class II cases in which the upper molars need to be moved to the distal more than the upper incisors.

scholarly journals Twenty-year clinical experience with fixed functional appliances

2018 ◽  
Vol 23 (2) ◽  
pp. 87-109 ◽  
Author(s):  
Alexandre Moro ◽  
Suellen W. Borges ◽  
Paula Porto Spada ◽  
Nathaly D. Morais ◽  
Gisele Maria Correr ◽  
...  
Keyword(s):  
Clinical Experience ◽  
Class Ii ◽  
Easy Task ◽  
Functional Appliances ◽  
Class Ii Elastics ◽  
Clinical Cases

ABSTRACT Introduction: Considering the large number of fixed functional appliances, choosing the best device for your patient is not an easy task. Objective: To describe the development of fixed functional appliances as well as our 20-year experience working with them. Methods: Fixed functional appliances are grouped into flexible, rigid and hybrid. They are different appliances, whose action is described here. Four clinical cases will be reported with a view to illustrating the different appliances. Conclusions: Rigid fixed functional appliances provide better skeletal results than flexible and hybrid ones. Flexible and hybrid appliances have similar effects to those produced by Class II elastics. They ultimately correct Class II with dentoalveolar changes. From a biomechanical standpoint, fixed functional appliances are more recommended to treat Class II in dolichofacial patients, in comparison to Class II elastics.

Root resorption in Class II malocclusion treatment with Class II elastics

2016 ◽  
Vol 150 (4) ◽  
pp. 585-591 ◽  
Author(s):  
Guilherme Janson ◽  
Ana Niederberger ◽  
Daniela Gamba Garib ◽  
Waleska Caldas
Keyword(s):  
Root Resorption ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Class Ii Elastics

Bite-opening Mechanics as Applied in the Begg Technique

1994 ◽  
Vol 21 (2) ◽  
pp. 189-195 ◽  
Author(s):  
Xu Tian-Min ◽  
Lin Jiu-Xiang ◽  
Hu Kui ◽  
Huang Jin-Fang
Keyword(s):  
Class Ii ◽  
Dental Arch ◽  
Force Magnitude ◽  
Intrinsic Quality ◽  
The Individual ◽  
Class Ii Elastics

In the Begg Technique, factors controlling the anterior intrusive force provided by the archwire have yet to be fully clarified. The rationale for bite opening with very light forces, the effect of Class II elastics on intrusive force magnitude and the intrinsic quality of ‘Australian’ wire in bite opening are examined in this paper. A formula is presented which allows the intrusive force that archwires exert in different individuals to be predicted. The values derived from the formula were compared with case model measurements. It was found that the intrusive force of the archwire was affected by the length of the individual dental arch. The magnitude of this intrusive force was seen to increase gradually during the period of bite opening and appeared to be related to the use of Class II elastics. The study revealed factors which affected the magnitude of the intrusive force.

scholarly journals Effective and Efficient Correction of Severe Skeletal Class II Division 1 Malocclusion with Intermaxillary Elastics

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Mohammed K. Badri
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Division 1 ◽  
The Status ◽  
Patient Cooperation ◽  
Growth Modification ◽  
Class Ii Elastics ◽  
Class Ii Division 1

Treatment of Class II malocclusion accompanied with a skeletal discrepancy is challenging. The approach of correction depends on several factors such as the status and pattern of growth, severity of the malocclusion, and patient cooperation. This case report describes a successful management of a 12-year-old young adolescent boy that was presented with a Class II division 1 malocclusion with an underlying skeletal discrepancy in horizontal and vertical dimensions. Growth modification was achieved by means of bite opening and unlocking the mandible together with Class II elastics and mechanics. Treatment was highly effective and efficient by achieving all treatment goals within a period of 18 months.

scholarly journals Effects of skeletally anchored Class II elastics: A pilot study and new approach for treating Class II malocclusion

2017 ◽  
Vol 87 (4) ◽  
pp. 505-512 ◽  
Author(s):  
Selin Ozbilek ◽  
Ahmet Yalcin Gungor ◽  
Salih Celik
Keyword(s):  
Class Ii ◽  
Matched Pair ◽  
Sign Test ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Significant Group ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Two Miniplates ◽  
Class Ii Elastics

ABSTRACT Objective: To evaluate the skeletal, dentoalveolar, and soft tissue effects of skeletally anchored Class II elastics and compare them with a matched control group treated by a monobloc appliance for the correction of skeletal Class II malocclusion due to mandibular retrusion. Materials and Methods: Twelve patients (6 girls, 6 boys) were randomly divided into two groups. In the elastics group, six patients (12.9 ± 1.5 years of age; 3 boys, 3 girls) were treated with skeletally anchored Class II elastics. Two miniplates were placed bilaterally at the ramus of the mandible and the other two miniplates were placed at the aperture piriformis area of the maxilla. In the monobloc group (3 boys and 3 girls; mean age, 12.3 ± 1.6 years), patients used the monobloc appliance. The changes observed in each phase of treatment were evaluated using the Wilcoxon matched-pair sign test. Intergroup comparisons at the initial phase of treatment were analyzed by the Mann-Whitney U test. Results: There were statistically significant group differences in Co-Gn, B-VRL, U1-PP, U1-VRL, Ls-VRL, with significant increases in these parameters in the elastics group (P < .05). The mandibular incisors were protruded in the monobloc group (5.45 ± 1.23°), whereas they were retruded in the elastics group (−3.01 ± 1.66°; P < .01). Conclusions: The undesirable dentoalveolar effects of the monobloc appliance were eliminated by using miniplate anchorage. Favorable skeletal outcomes can be achieved by skeletal anchorage therapies which could be an alternative to treat skeletal Class II patients with mandibular deficiency.

Tratamento da Classe II com Invisalign

2021 ◽  
Vol 14 (53) ◽  
pp. 107-119
Author(s):  
Alexandre Moro ◽  
Bruna Girotto Olinquevicz ◽  
Nathaly D. Morais ◽  
Stéffany dos Anjos Francisco ◽  
Francielle Topolski ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Treatment Plan ◽  
Treatment Options ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Clinical Report ◽  
Orthodontic Appliance ◽  
Dental Aesthetics ◽  
Tooth Extractions ◽  
Class Ii Elastics

Complete correction of Class II malocclusion in an adult patient is not an easy task. In a case with large skeletal discrepancy, orthognathic surgery is the treatment of choice. However, in case of slight or borderline discrepancy, other treatment options are available, such as tooth extractions and miniscrews. Intermediate cases can also be treated with Class II correctors and elastics. This clinical report presents the orthodontic treatment of a 25-year-old female patient with Class II malocclusion. Clinically, the maxilla was well positioned, and the mandible was slightly retruded. The patient presented vestibularized upper incisors, well-positioned lower incisors and opted for a more aesthetically attractive orthodontic appliance. The treatment plan included teeth leveling and aligning in both arches, Class II correction, establishment of Class I molar and canine relationships, correction of overjet and overbite, midline correction, and improvement of facial and dental aesthetics. The orthodontic treatment consisted of removable Invisalign aligners and Class II elastics.

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