Class II malocclusion with complex problems treated with a novel combination of lingual orthodontic appliances and lingual arches

This study is dedicated to a comparative analysis of effectiveness of using orthodontic appliances when treating class II malocclusion in children and adolescents. It was shown that treatment with the Invisalign system with a change of the lower jaw position is the most effective method for correcting class II malocclusion in growing patients. Using Invisalign aligners showed not only the best efficacy according to teleroentgenograms. but also made the treatment process comfortable for patients at all its stages. Moreover, higher level of compliance was demonstrated with treatment using the Invisalign system compared to the Twin-block appliance.

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Class II malocclusion treatment using combined Twin Block and fixed orthodontic appliances – A case report

The Saudi Dental Journal ◽

10.1016/j.sdentj.2010.09.005 ◽

2011 ◽

Vol 23 (1) ◽

pp. 43-51 ◽

Cited By ~ 1

Author(s):

Saud A. Al-Anezi

Keyword(s):

Case Report ◽

Class Ii ◽

Orthodontic Appliances ◽

Class Ii Malocclusion ◽

Twin Block ◽

Fixed Orthodontic Appliances

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Management of severe Class II malocclusion with sequential modified twin block and fixed orthodontic appliances

APOS Trends in Orthodontics ◽

10.4103/2321-1407.177966 ◽

2016 ◽

Vol 6 ◽

pp. 113-118

Author(s):

Sonal Chowdhary

Keyword(s):

Class Ii ◽

Mandibular Advancement ◽

Orthodontic Appliances ◽

Class Ii Malocclusion ◽

Functional Appliance ◽

Deep Bite ◽

Twin Block ◽

Skeletal Class ◽

Skeletal Class Ii ◽

Fixed Orthodontic Appliances

Functional appliance is an effective way of treating skeletal Class II malocclusion in children and adolescents. A 12 months stepwise mandibular advancement protocol with Herbst appliance has been proved to enhance condylar growth and improve mandibular prognathism. The present case report documents a 12-year-old boy presenting with Angle’s Class II, division 1 malocclusion associated with excessive overjet (11 mm), 100% deep bite, and retrognathic mandible. He was treated by a phase I growth modification therapy using twin block appliance with lip pads in a stepwise mandibular advancement protocol followed by a phase II preadjusted Edgewise appliance therapy.

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Management of Severe Class II Malocclusion With Sequential Fixed Functional and Orthodontic Appliances: A Case for MOrthRCSEd Examination

Singapore Dental Journal ◽

10.1016/s0377-5291(12)70007-x ◽

2010 ◽

Vol 31 (1) ◽

pp. 30-35

Author(s):

Larry CF Li ◽

A Bakr M Rabie ◽

Ricky WK Wong

Keyword(s):

Class Ii ◽

Orthodontic Appliances ◽

Class Ii Malocclusion

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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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Class II malocclusion treatment using Jasper Jumper appliance associated to intermaxillary elastics: a case report

Dental Press Journal of Orthodontics ◽

10.1590/s2176-94512013000200010 ◽

2013 ◽

Vol 18 (2) ◽

pp. 22-29 ◽

Cited By ~ 1

Author(s):

Francyle Simões Herrera-Sanches ◽

José Fernando Castanha Henriques ◽

Guilherme Janson ◽

Leniana Santos Neves ◽

Karina Jerônimo Rodrigues Santiago de Lima ◽

...

Keyword(s):

Class Ii ◽

Dental Arch ◽

Orthodontic Appliances ◽

Class Ii Malocclusion ◽

Facial Profile ◽

Division 1 ◽

Efficient Alternative ◽

Fixed Appliances ◽

One Year ◽

Lingual Retainer

INTRODUCTION: Skeletal, dental and profile discrepancies can be amended by using functional orthodontic appliances. OBJECTIVE: This study is a report of the treatment of a patient, 11 years and 4 months old, with Class II, division 1, malocclusion, convex profile, protrusion of upper incisors, pronounced overjet and overbite, and mild crowding. METHODS: The patient was treated with a Jasper Jumper associated to fixed appliances for 6 months and Class II intermaxillary elastics (3/16in) during the last 4 months. After debonding, a Hawley retainer was used during daytime and a modified Bionator for night use during one year. In the lower dental arch a bonded lingual retainer was used. This treatment combination improved the profile, as well as the overjet, overbite and molar relation. RESULTS: There was clockwise mandibular rotation and increase of lower anterior facial height. The lower incisors were protruded and extruded and the lower molars were extruded. The centric occlusal relation was checked and it was coincident to the maximum usual intercuspation. CONCLUSION: It was demonstrated that the Jasper Jumper is an efficient alternative to Class II malocclusion treatment, providing improvement in the facial profile, although the changes are more dentoalveolar than skeletal.

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Evaluation of temporomandibular joint, masticatory muscle, and brain cortex activity in patients treated by removable functional appliances: a prospective fMRI study

Dentomaxillofacial Radiology ◽

10.1259/dmfr.20190216 ◽

2019 ◽

Vol 48 (7) ◽

pp. 20190216

Author(s):

Orhan Ozdiler ◽

Kaan Orhan ◽

Emre Cesur ◽

Ayşegül Köklü ◽

Oktay Algın

Keyword(s):

Temporomandibular Joint ◽

Class Ii ◽

Masticatory Muscles ◽

Control Group ◽

Orthodontic Appliances ◽

Class Ii Malocclusion ◽

Full Time ◽

Muscle Adaptation ◽

Mri Findings ◽

Functional Appliances

Objectives: The aim of this study is to evaluate the effects of functional orthodontic appliances on the masticatory muscles, temporomandibular joint (TMJ), and brain to determine whether using functional appliances full-time or only at night yields different results. Methods: 16 patients with Class II malocclusion were included in this study. Eight patients were instructed to wear their appliances (monoblock/twinblock) full-time and the other eight patients were instructed to wear them at night while sleeping. An additional 10 patients with Class II malocclusion were later included as a pre-treatment control group. Signal intensity ratios (SIR) of TMJ structures and morphological evaluations of the masticatory muscles were done for all patients. Functional MRI (fMRI) data were also obtained from the patients while performing chewing and biting movements. Results: ANB angle was reduced significantly in both the full-time and night wear groups, by values of 1.17° and 1.35°, respectively (p < 0.05). MRI showed that SIRs were significantly increased in both groups in the masticatory muscles, retrodiscal pad, condylar process, and articular disc (p < 0.05). Both resting and task-based fMRI evaluation revealed significant increases in blood oxygen level dependent signals in several regions of the brain in both groups (p < 0.05). Conclusions: The cephalometric and MRI findings of this study indicate that the treatment effects were similar for both wear schedules. Functional appliances should be regarded not as simple devices that treat Class II malocclusion through skeletal and dental correction alone, but as exercise devices that lead to neuromuscular changes by facilitating muscle adaptation and activating various brain regions.

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Skeletal Class II Malocclusion Treated with AdvanSync 2 - A Case Report

Journal of Evolution of Medical and Dental Sciences ◽

10.14260/jemds/2021/603 ◽

2021 ◽

Vol 10 (34) ◽

pp. 2951-2953

Author(s):

Namrata Dogra ◽

Archana Jaglan ◽

Sidhu M. S. ◽

Seema Grover ◽

Suman Suman

Keyword(s):

Case Report ◽

Treatment Success ◽

Class Ii ◽

Orthodontic Appliances ◽

Class Ii Malocclusion ◽

Functional Appliance ◽

Fixed Functional Appliance ◽

Skeletal Class Ii ◽

Fixed Orthodontic Appliances ◽

Functional Appliances

Treatment of complex malocclusion poses a challenge for the orthodontist because of its multifactorial aetiology. Class II malocclusion is the most frequently encountered and treated malocclusion in orthodontic practice and affects approximately 14.6 % of the North Indian population.1 A common reason for Class II malocclusion is mandibular skeletal retrusion which is the most common characteristic, as reported by McNamara.2 This can be caused by genetic or hereditary factors. When evaluating treatment options for Class II patients, the extent of the skeletal discrepancy and the skeletal maturity of the patient needs to be considered. Treatment may range from dental compensation including camouflage with extractions to surgical procedures targeted at moving the jaw at fault. In growing patients, growth modification with functional appliances offers an intermediate treatment option. Functional appliances are basically of two types; Removable and Fixed. Removable functional appliances such as Activator, Bionator, Frankel Function regulator and Twin Block appliance change Class II relationship by the transmission of soft tissue tension to the dentition. Treatment success with these appliances relies heavily on patient compliance. Therefore, in non-compliant patients, fixed Class II correctors in conjunction with fixed orthodontic appliances are the best choice.3 Fixed functional appliances generate continuous stimuli for mandibular growth without break and permit better adaptation to functions like mastication, swallowing, speech and respiration.1 The Herbst fixed functional appliance has been used routinely for Class II patients and has undergone many design variations over time.4 The AdvanSync2 Class II corrector is a recently introduced fixed functional appliance. It has a much smaller size than the conventional Herbst appliances, is easier to place, activate and remove and most importantly, can be used in conjunction with full-arch fixed appliances throughout.3 Here we describe a case report of a patient treated with the AdvanSync2 Class II corrector and the findings observed in the sagittal and vertical dimensions

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Changes in soft tissue profile using functional appliances in the treatment of skeletal class II malocclusion

Srpski arhiv za celokupno lekarstvo ◽

10.2298/sarh1502012s ◽

2015 ◽

Vol 143 (1-2) ◽

pp. 12-15 ◽

Cited By ~ 1

Author(s):

Zorana Stamenkovic ◽

Vanja Raickovic ◽

Vladimir Ristic

Keyword(s):

Soft Tissue ◽

Class Ii ◽

Orthodontic Appliances ◽

Class Ii Malocclusion ◽

Type I ◽

Upper Lip ◽

Skeletal Class ◽

Skeletal Class Ii ◽

Facial Esthetics ◽

Soft Tissue Profile

Introduction. The effects of orthodontic treatment are considered to be successful if the facial harmony is achieved, while the structures of soft tissue profile are in harmony with skeletal structures of neurocranium and viscerocranium. In patients with skeletal distal bite caused by mandibular retrognathism, facial esthetics is disturbed often, in terms of pronounced convexity of the profile and change in the position and relationship of the lips. Objective. The aim of this study was to determine the extent of soft tissue profile changes in patients with skeletal Class II malocclusion treated with three different orthodontic appliances: Fr?nkel functional regulator type I (FR-I), Balters? Bionator type I and Hotz appliance. Methods. The study included 60 patients diagnosed with skeletal Class II malocclusion caused by mandibular retrognathism, in the period of early mixed dentition. Each subgroup of 20 patients was treated with a variety of orthodontic appliances. On the lateral cephalogram, before and after treatment, the following parameters were analyzed: T angle, H angle, the height of the upper lip, the position of the upper and lower lip in relation to the esthetic line. Within the statistical analysis the mean, maximum, minimum, standard deviation, coefficient of variation, two-factor analysis of variance with repeated measures and the factor analysis of variance were calculated using ANOVA, Bonferroni test and Student?s t-test. Results. A significant decrease of angles T and H was noticed in the application of FR-I, from 21.60? to 17.15?, and from 16.45? to 13.40? (p<0.001). FR-I decreased the height of the upper lip from 26.15 mm to 25.85 mm, while Hotz appliance and Balters? Bionator type I increased the height of the upper lip, thereby deteriorating esthetics of the patient. Conclusion. All used orthodontic appliances lead to changes in soft tissue profile in terms of improving facial esthetics, with the most distinctive changes in the application of Fr?nkel?s functional regulator type I, which is the most successful appliance for achieving the overall facial harmony of the patient.

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