The Class II malocclusion: Differential diagnosis and clinical application of activators, extraoral traction, and fixed appliances

ABSTRACTBased on our literature search, we found that the use of miniplate anchorage with Forsus fatigue-resistance device (FRD) has not yet been reported. Therefore, the aim of the present case report was to present the treatment of a patient with skeletal Class II malocclusion with mandibular retrusion using Forsus FRD with miniplate anchorage. Fixed appliances with 0.022-inch slots were attached to the maxillary teeth and after 8 months of the leveling and alignment of the upper arch, 0.019 × 0.025-inch stainless steel archwire was inserted and cinched back. Two weeks after the placement of the miniplates bilaterally at the symphysis of the mandible, Forsus FRD was adjusted to the miniplates with a 35-mm length of rod chosen. Nine months after the skeletal anchored Forsus worn, Class I canine and molar relations were achieved and overjet was eliminated.

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Treatment effects of the Carriere® Motion 3D™ appliance for the correction of Class II malocclusion in adolescents

The Angle Orthodontist ◽

10.2319/121418-872.1 ◽

2019 ◽

Vol 89 (6) ◽

pp. 839-846 ◽

Cited By ~ 2

Author(s):

Hera Kim-Berman ◽

James A. McNamara ◽

Joel P. Lints ◽

Craig McMullen ◽

Lorenzo Franchi

Keyword(s):

Treatment Group ◽

Phase I ◽

Phase Ii ◽

Treatment Effects ◽

Class Ii ◽

Occlusal Plane ◽

Class Ii Malocclusion ◽

Forward Movement ◽

Skeletal Changes ◽

Fixed Appliances

ABSTRACT Objectives: To determine the treatment effects produced in Class II patients by the Carriere® Motion 3D™ appliance (CMA) followed by full fixed appliances (FFA). Materials and Methods: This retrospective study evaluated 34 adolescents at three time points: T1 (pretreatment), T2 (removal of CMA), and T3 (posttreatment). The comparison group comprised 22 untreated Class II subjects analyzed at T1 and T3. Serial cephalograms were traced and digitized, and 12 skeletal and 6 dentoalveolar measures were compared. Results: Phase I with CMA lasted 5.2 ± 2.8 months; phase II with FFA lasted 13.0 ± 4.2 months. CMA treatment restricted the forward movement of the maxilla at point A. There was minimal effect on the sagittal position of the chin at pogonion. The Wits appraisal improved toward Class I by 2.1 mm during the CMA phase but not during FFA. Lower anterior facial height increased twice as much in the treatment group as in controls. A clockwise rotation (3.9°) of the functional occlusal plane in the treatment group occurred during phase I; a substantial rebound (−3.6°) occurred during phase II. Overjet and overbite improved during treatment, as did molar relationship; the lower incisors proclined (4.2°). Conclusions: The CMA appliance is an efficient and effective way of correcting Class II malocclusion. The changes were mainly dentoalveolar in nature, but some skeletal changes also occurred, particularly in the sagittal position of the maxilla and in the vertical dimension.

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Stability of molar relationship after non-extraction Class II malocclusion treatment

Dental Press Journal of Orthodontics ◽

10.1590/s2176-94512013000200013 ◽

2013 ◽

Vol 18 (2) ◽

pp. 42-54 ◽

Cited By ~ 1

Author(s):

Darwin Vaz de Lima ◽

Karina Maria Salvatore de Freitas ◽

Marcos Roberto de Freitas ◽

Guilherme Janson ◽

José Fernando Castanha Henriques ◽

...

Keyword(s):

Treatment Time ◽

Class Ii ◽

Class Ii Malocclusion ◽

Retention Period ◽

End Of Treatment ◽

Initial Severity ◽

Fixed Appliances ◽

Correlation Tests ◽

The Stability ◽

Mean Time

OBJECTIVE: This study aimed to evaluate the stability of molar relationship after non-extraction treatment of Class II malocclusion. METHODS: The sample comprised 39 subjects (16 females, 23 males) with initial Class II malocclusion treated with no extractions, using fixed appliances. Mean age at the beginning of treatment was 12.94 years, at the end of treatment was 15.14 years and at post-retention stage was 21.18 years. Mean treatment time was 2.19 years and mean time of post-treatment evaluation was 6.12 years. To verify the influence of the severity of initial Class II molar relationship in stability of molar relationship, the sample was divided into two groups, one presenting a ½-cusp or ¾-cusp Class II molar relationship, and the other with full-cusp Class II molar relationship. In dental casts from initial, final and postretention stages, molar, first and second premolars and canine relationships were measured. Data obtained were analyzed by dependent ANOVA, Tukey and Pearson's correlation tests, as well as independent t test between the two groups divided by severity of initial molar relationship. RESULTS: There was a non-statistically significant 0.12 mm relapse of molar relationship. The initial severity of Class II molar relationship was not correlated to relapse in the post-retention period. When compared, the two groups showed no difference in relapse of molar relationship. CONCLUSION: It was concluded that correction of Class II molar relationship is stable and initial severity does not influence relapse of molar relationship.

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Effects of the pendulum appliance, cervical headgear, and 2 premolar extractions followed by fixed appliances in patients with Class II malocclusion

American Journal of Orthodontics and Dentofacial Orthopedics ◽

10.1016/j.ajodo.2007.12.032 ◽

2009 ◽

Vol 136 (6) ◽

pp. 833-842 ◽

Cited By ~ 17

Author(s):

Renata Rodrigues de Almeida-Pedrin ◽

José Fernando Castanha Henriques ◽

Renato Rodrigues de Almeida ◽

Marcio Rodrigues de Almeida ◽

James A. McNamara

Keyword(s):

Class Ii ◽

Class Ii Malocclusion ◽

Pendulum Appliance ◽

Fixed Appliances

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3D Printed Orthodontic Distalizer with Individual Base for Tooth-Borne Hybrid Approach in Class II Unilateral Malocclusions Treatment

10.20944/preprints202111.0547.v1 ◽

2021 ◽

Author(s):

Andrej Thurzo ◽

Wanda Urbanová ◽

Bohuslav Novák ◽

Iveta Waczulíková ◽

Ivan Varga

Keyword(s):

Medical Device ◽

Clinical Application ◽

Clinical Performance ◽

Hybrid Approach ◽

Research Paper ◽

Class Ii ◽

Class Ii Malocclusion ◽

3D Printed ◽

Novel Method

Aim of this research paper is to introduce a novel method of hybrid orthodontic tooth-borne distalizer treatment of class II malocclusion by using 3D printed biocompatible personalized distalizer. Explains 3D designing, printing and clinical application of individualized biocompatible medical device dedicated for orthodontic teeth distalization. Compares such distalizer manufactured from two different biocompatible photopolymers (white and transparent). Evaluates their clinical performance and also patients’ aesthetical perception. Clinical part includes comparison of treatment debonding on the set of 12 complete orthodontic treatments with uni-lateral class II malocclusion managed with hybrid approach (CAT-Invisalign with 3D printed distalizer). Paper offers an evaluation of the personalized distalizer functioning in regard to current publications and comparison to conventional prefabricated alternatives like Carriere® Distalizer™ appliance. Results showed no significance of material differences on clinical performance of such individualized distalizers. Research showed preference of patients towards transparent biocompatible photopolymer instead of white A2 shade.

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Cephalometric evaluation of Class II malocclusion treatment with cervical headgear and mandibular fixed appliances

European Journal of Orthodontics ◽

10.1093/ejo/cjn039 ◽

2008 ◽

Vol 30 (5) ◽

pp. 477-482 ◽

Cited By ~ 12

Author(s):

M. R. Freitas ◽

D. V. Lima ◽

K. M. S. Freitas ◽

G. Janson ◽

J. F. C. Henriques

Keyword(s):

Class Ii ◽

Class Ii Malocclusion ◽

Fixed Appliances

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Comparison of the dentoskeletal and soft tissue changes with the cervical headgear and Jones Jig followed by fixed appliances in Class II malocclusion patients: A retrospective study

International Orthodontics ◽

10.1016/j.ortho.2020.03.001 ◽

2020 ◽

Vol 18 (3) ◽

pp. 424-435

Author(s):

Fernanda Pinelli Henriques Fontes ◽

Silvio Augusto Bellini-Pereira ◽

Aron Aliaga-Del-Castillo ◽

Mayara Paim Patel ◽

Marcos Roberto de Freitas ◽

...

Keyword(s):

Retrospective Study ◽

Soft Tissue ◽

Class Ii ◽

Class Ii Malocclusion ◽

Tissue Changes ◽

Fixed Appliances ◽

Soft Tissue Changes

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Cephalometric effects of the Jones Jig appliance followed by fixed appliances in Class II malocclusion treatment

Dental Press Journal of Orthodontics ◽

10.1590/2176-9451.19.3.044-051.oar ◽

2014 ◽

Vol 19 (3) ◽

pp. 44-51 ◽

Cited By ~ 7

Author(s):

Mayara Paim Patel ◽

José Fernando Castanha Henriques ◽

Karina Maria Salvatore de Freitas ◽

Roberto Henrique da Costa Grec

Keyword(s):

Orthodontic Treatment ◽

Class Ii ◽

Class Ii Malocclusion ◽

Fixed Appliance ◽

Face Height ◽

End Of Treatment ◽

Fixed Appliances ◽

The Mean ◽

Anchorage Loss ◽

Mean Time

OBJECTIVE: The aim of this study was to cephalometrically assess the skeletal and dentoalveolar effects of Class II malocclusion treatment performed with the Jones Jig appliance followed by fixed appliances. METHODS: The sample comprised 25 patients with Class II malocclusion treated with the Jones Jig appliance followed by fixed appliances, at a mean initial age of 12.90 years old. The mean time of the entire orthodontic treatment was 3.89 years. The distalization phase lasted for 0.85 years, after which the fixed appliance was used for 3.04 years. Cephalograms were used at initial (T1), post-distalization (T2) and final phases of treatment (T3). For intragroup comparison of the three phases evaluated, dependent ANOVA and Tukey tests were used. RESULTS: Jones Jig appliance did not interfere in the maxillary and mandibular component and did not change maxillomandibular relationship. Jones Jig appliance promoted distalization of first molars with anchorage loss, mesialization and significant extrusion of first and second premolars, as well as a significant increase in anterior face height at the end of treatment. The majority of adverse effects that occur during intraoral distalization are subsequently corrected during corrective mechanics. Buccal inclination and protrusion of mandibular incisors were identified. By the end of treatment, correction of overjet and overbite was observed. CONCLUSIONS: Jones Jig appliance promoted distalization of first molars with anchorage loss represented by significant mesial movement and extrusion of first and second premolars, in addition to a significant increase in anterior face height.

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Treatment of a severe Class II malocclusion with pre-existing root resorption - A judicious use of orthodontic appliances

South African Dental Journal ◽

10.17159/2519-0105/2021/v76no3a4 ◽

2021 ◽

Vol 76 (3) ◽

pp. 142-146

Author(s):

Ismaeel Hansa

Keyword(s):

Treatment Duration ◽

Root Resorption ◽

Treatment Plan ◽

Class Ii ◽

Orthodontic Appliances ◽

Class Ii Malocclusion ◽

Increased Risk ◽

Risk Of Progression ◽

Fixed Appliances ◽

Extraction Treatment

The orthodontic treatment of patients with pre-existing root resorption (RR) is often difficult due to the increased risk of progression and often a compromised treatment outcome can be expected. The treatment plan in such situations should comprise of a root sparing strategy, which includes reducing the treatment duration with fixed appliances, non-extraction treatment, reducing force levels, avoiding intrusion of at-risk teeth, reducing the amount of apical movement of the affected teeth and intermittent force application where possible. The following case report shows the use of a root sparing strategy in the treatment of a severe Class II malocclusion with pre-existing root resorption of the 11 and 21.

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