Dento-Facial Orthopaedics in the Correction of Class II Malocclusion

1982 ◽  
Vol 9 (1) ◽  
pp. 3-31 ◽  
Author(s):  
N. M. Bass
Keyword(s):  
Conventional Treatment ◽  
Class Ii ◽  
Facial Features ◽  
Second Phase ◽  
Class Ii Malocclusion ◽  
Combined Approach ◽  
Case Histories ◽  
Mandibular Growth ◽  
Skeletal Class ◽  
Skeletal Class Ii

An orthopaedic appliance system has been developed with the specific therapeutic intention of removing those factors responsible for the initiation or maintenance of the skeletal Class II malocclusion. This is accomplished by means of restraint and redirection of forward maxillary growth and induction of mandibular growth. Concurrently, adverse soft tissue influences are eliminated or ameliorated. Clinical and experimental evidence gives support to this concept and case histories show the clinical mode of use of the appliance system. An initial 10–12 month orthopaedic phase is followed by a second phase of similar duration, utilizing full Edgewise therapy to perfect the occlusion. The second phase is much reduced in complexity and is generally confined to alignment and final detailing as the essential corrections have been achieved in the orthopaedic phase. It is considered that this combined approach to Skeletal II treatment is more physiologic than conventional treatment and results in a better harmony of dental and facial features.

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 Skeletal Class II Malocclusion Treatment with Combined Twin Block and Lip Bumper Appliances: A Case Report

2021 ◽  
Vol 16 (Supp. 1) ◽  
pp. 87-94
Author(s):  
Hilda Fitria Lubis ◽  
Nurhayati Harahap ◽  
Ananda Permata Sari
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Condylar Cartilage ◽  
Lower Lip ◽  
Mandibular Growth ◽  
Twin Block ◽  
Skeletal Class ◽  
Anterior Teeth ◽  
Skeletal Class Ii ◽  
Lip Bumper

Functional appliances have been used over a century in clinical orthodontic treatments for skeletal Class II malocclusion patients. Its popularity is attributed to its high patient adaptability and ability to produce rapid treatment changes. The twin block and lip bumper can be combined depending on the patient’s cases. The purpose of therapy with twin block is effective in mandibular growth deficiencies to induce supplementary lengthening of mandibular by stimulating increased growth at the condylar cartilage. The patient was a ten-year-old male patient with skeletal Class II malocclusion. He had a convex facial profile, SNA (sella, nasion, A point) angle of 77.5°, SNB (sella, nasion, B point) angle of 73.0°, ANB (A point, nasion, B point) angle of 4.5°, overjet of 6.5 mm, overbite of 11/41 = 5.0 mm, 21/31 = 4.5 mm, abnormal upper labial frenulum, crossbite in the second left premolar of maxilla, crowded anterior teeth of mandibular, deficiency of mandibular growth, lower lip sucking habit, anterior teeth of maxilla with diastema and proclination. Orthodontic treatment for patient is a combination of twin block and lip bumper appliances. After seven months, frenectomy is used to eliminate and correct the spacing in the frenulum. After 10 months, the patient’s skeletal and profile had improved to skeletal Class I malocclusion, SNA angle of 78.0°, SNB angle of 75.0°, ANB angle of 3.0°, overbite and overjet of 4.0 mm, and the lower lip sucking habit had stopped. Twin block and lip bumper appliances are particularly good alternative treatment in managing selected cases of skeletal Class II malocclusion.

scholarly journals No Compliance Correction of Class II Malocclusion in Growing Patients Whit HERBST Appliance: A Case Report

2018 ◽  
Vol 12 (1) ◽  
pp. 605-613 ◽  
Author(s):  
M. Portelli ◽  
A. Militi ◽  
M. Cicciù ◽  
A. Lo Giudice ◽  
G. Cervino ◽  
...  
Keyword(s):  
Class Ii ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Herbst Appliance ◽  
Functional Therapy ◽  
Deep Bite ◽  
Mandibular Growth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Mandibular Retrusion

Background:Class II malocclusion is the most common sagittal skeletal discrepancy, with a prevalent skeletal pattern of mandibular retrusion. The correction of mandibular retrusion with functional removable appliance needs a good patient’s compliance; for this reason, some clinicians prefer to use no compliance apparatus.Objective:Objective of the present therapy note is to demonstrate that the use of no compliance apparatus can provide a good correction of skeletal class II malocclusion.Methods:In the present study, authors report a therapy note referred to a 10 years old patient, woman, affected by Class II, with mandibular retrusion and deep bite, treated in 2013 at the Dep. of Orthodontics of Messina University. An orthodontic treatment has been planned with the aim of stimulating mandibular growth; an Herbst appliance with a cantilever design, bonded on first maxillary and mandibular molars, has been used. After eleven months of functional therapy a bilateral molar class I have been obtained.Results:In the therapy note proposed, authors obtained a resolution of mandibular retrusion, a correction of overjet, overbite and dental crowding in both arches, and a bilateral molar and canine class I has been achieved.Conclusion:Herbst appliance seems to be efficient in the correction of II Class Malocclusion, independently from patient’s cooperation; moreover , early correction of Class II malocclusion with functional appliances produces several clinical advantages.

Uso de propulsor mandibular fixo Flex Developer como recurso no tratamento da Classe II em paciente não colaborador

2020 ◽  
Vol 13 (52) ◽  
pp. 40-51
Author(s):  
Renato Barcellos Rédua
Keyword(s):  
Upper Airway ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Advantages And Disadvantages ◽  
Skeletal Class Ii ◽  
High Incidence ◽  
Therapeutic Alternatives ◽  
Smile Aesthetics ◽  
Treatment Alternatives

Class II malocclusion has a high incidence in the population, which may compromise smile aesthetics, occlusion function and stability. Skeletal Class II may affect facial aesthetics and upper airway volume. Class II malocclusion is routinely associated with skeletal Class II condition, having as treatment alternatives the use of Extra Buccal Appliance (EBA) or removable or fixed propulsor appliance. This article describes a case of a patient who did not accept the use of EBA and so it was fitted a Flex Developer propulsor for Class II correction and discussed the advantages and disadvantages of therapeutic alternatives for Class II correction.

A Comparison of Five Different Methods for Describing Sagittal Jaw Relationship

1993 ◽  
Vol 20 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Johannes Kirchner ◽  
Stephen Williams
Keyword(s):  
Correlation Analysis ◽  
Treatment Planning ◽  
Class Ii ◽  
Diagnosis And Treatment ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Accurate Picture

Analysis of sagittal jaw relationship is important in orthodontic diagnosis and treatment planning, and can be investigated by angular or linear parameters. In the present study an analysis was performed using profile cephalograms of 40 children with skeletal Class II malocclusion. A correlation analysis is presented, involving five different methods of expressing sagittal jaw relationships. Whilst some degree of agreement could be noted, it was not possible to suggest a pair of measurements, which in combination, could give a more accurate picture of sagittal jaw relationships.

Abordagem precoce da má oclusão de Classe II esquelética com atresia maxilar e mordida aberta anterior e o uso de alinhadores ClearCorrect – relato de caso

2021 ◽  
Vol 14 (53) ◽  
pp. 97-106
Author(s):  
Roberto Hideo Shimizu ◽  
Isabela Almeida Shimizu ◽  
Ana Cláudia M. Melo Toyoffuku ◽  
Rebecca Marquesini ◽  
Tatiane Travizan Lima ◽  
...  
Keyword(s):  
Treatment Time ◽  
Low Complexity ◽  
Class Ii ◽  
Open Bite ◽  
Class Ii Malocclusion ◽  
Anterior Open Bite ◽  
Skeletal Class ◽  
Posterior Crossbite ◽  
Skeletal Class Ii ◽  
High Predictability

Adequate planning and early treatment of Angle Class II malocclusion with maxillary atresia and anterior open bite provides harmonization of maxillomandibular bone bases in the three planes of space. Orthodontic aligners have emerged as an alternative treatment having the following advantages: being more aesthetic and more comfortable for the patient, less treatment time when they are correctly indicated, less chairside time, less complications, possibility of remote monitoring, easier feeding, and dental hygiene. On the other hand, they offer difficulties to treat adults with severe skeletal Class II malocclusions, posterior crossbite and anterior open bite. Therefore, the objective of this clinical case report is to early correct skeletal Class II malocclusion with maxillary atresia through the use of mechanical orthopedics and devices that help eliminate habits and close the anterior open bite, and later the use of orthodontic aligners to finish the treatment. It was concluded that the early interceptive treatment of malocclusion was efficient to harmonize the bone bases in the anteroposterior, vertical, and transversal directions, changing this malocclusion from high to low complexity and, consequently, highly predictable and with an excellent prognosis for treatment with orthodontic aligners. The treatment with ClearCorrect aligners corrected the occlusion in a shorter period of time when compared to corrective orthodontics and with a high predictability in relation to the virtual setup.

scholarly journals A combined Surgical-Orthodontic treatment in skeletal Class II malocclusion patients

2021 ◽  
Vol 3 (2) ◽  
pp. 82-87
Author(s):  
Prathyaksha Shetty ◽  
Dipjyothi Baruah ◽  
Amit Rekhawat ◽  
Karthik Cariappa ◽  
Sujala Ganapati Durgekar ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Mandibular Advancement ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Sagittal Split Osteotomy ◽  
Skeletal Class Ii ◽  
Facial Esthetics ◽  
Bilateral Sagittal Split Osteotomy ◽  
Common Problems

Skeletal Class II malocclusion with mandibular deficiency is one of the most common problems that patients seek treatment. Adult patients with severe skeletal Class II malocclusion need orthognathic surgery for successful treatment. Bilateral sagittal split osteotomy (BSSO) is the most often preferred technique for these patients. This case report briefs about two male patient of age 24 years presented with Class II Skeletal relation, mesoprosopic facial form, horizontal growth pattern and Angle’s Class II div 1 malocclusion who were treated with Bilateral sagittal split osteotomy (BSSO) mandibular advancement. The ideal anteroposterior relation was established along with a Class I molar, incisor, canine relationship and ideal overjet, overbite and the overall facial esthetics were significantly improved. Combined surgical-orthodontic treatment aims to obtain a more harmonious facial, skeletal, dental and soft tissue relationship with an added patient self esteem.

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