scholarly journals Early management of class II division 2 malocclusion. Literature review

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
Carolina Rodríguez-Manjarrés ◽  
Margarita-Rosa Padilla-Tello
Keyword(s):  
Treatment Options ◽  
Relevant Information ◽  
Class Ii ◽  
Mixed Dentition ◽  
Mandibular Advancement ◽  
Maxillary Expansion ◽  
Early Management ◽  
Mandibular Retrognathism ◽  
Dental Crowding ◽  
Division 2

This paper presents the most relevant information about the class II division 2 malocclusion (II / 2) described in the literature and different treatment options based on orthopedics. Class II malocclusion is characterized by mandibular retrognathism and / or prognathic maxillary which could affect the molar relationship and considering the dental component is subdivided into Type 1, characterized by vestibular inclination of all upper incisors and Type 2 with upper central incisors retroclined and vestibularized lateral incisors. It presents multifactorial etiology. As reported by the literature, the incidence of malocclusion Class II / 2 ranges from 3-12%. It is characterized by different vertical, transverse, facial, skeletal and dental features that differentiate it from other malocclusions, and thus make decisions on time. Therefore, early treatment of this type of malocclusion, can reduce the possibility of surgery, minimizec the severity of the alteration in stomatological system functions and improve the overall appearance of the patient. The goals of treatment are directed transversely performing maxillary expansion to allow correction in alteration of the axial inclination of the upper incisors and solve dental crowding, leading to a malocclusion class II / 1, for further mandibular advancement. Keywords: Malocclusion, Class II Division 2, mixed dentition, functional orthopedics of the jaws.

scholarly journals Prediction of Class II improvement after rapid maxillary expansion in early mixed dentition

2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Alberto Caprioglio ◽  
Chiara Bergamini ◽  
Lorenzo Franchi ◽  
Nicolò Vercellini ◽  
Piero Antonio Zecca ◽  
...  
Keyword(s):  
Class Ii ◽  
Rapid Maxillary Expansion ◽  
Mixed Dentition ◽  
Maxillary Expansion

scholarly journals Rapid maxillary expansion effects in Class II malocclusion: A systematic review

2015 ◽  
Vol 85 (6) ◽  
pp. 1070-1079 ◽  
Author(s):  
Murilo Fernando Neuppmann Feres ◽  
Hasnain Raza ◽  
Adel Alhadlaq ◽  
Tarek El-Bialy
Keyword(s):  
Systematic Review ◽  
Relevant Literature ◽  
Class Ii ◽  
Rapid Maxillary Expansion ◽  
Mixed Dentition ◽  
Qualitative Assessment ◽  
Cochrane Library ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Maxillary Expansion

ABSTRACT Objective:  To evaluate the effectiveness of rapid maxillary expansion (RME) on the sagittal dental or skeletal parameters of growing children with Class II malocclusion. Materials and Methods:  A systematic review intended to identify relevant literature was conducted. The search was performed on Medline, Embase, Cochrane Library, and Scopus databases. Reference lists of the included articles were also screened for relevant documents. The qualitative assessment was performed according to the Methodological Index for Non-Randomized Studies (MINORS) tool, and the resultant data were grouped and analyzed concerning dental and skeletal sagittal effects of RME. Results:  Of 25 screened studies, seven articles met eligibility criteria and were included. Study samples were observed during mixed dentition stage and characterized as having either Class II dental malocclusion or skeletal discrepancy. None of the included studies was a randomized clinical trial. Included controlled studies presented several inadequacies related to control group or lacked appropriate comparative statistical analysis. Besides being frequently based on deficient methodology, dental and skeletal sagittal effects of RME were either controversial or lacked clinical relevance. Conclusion:  The effect of RME on the sagittal dimension of Class II malocclusions has not been proved yet. Future randomized controlled clinical trials are still needed to definitely address this question.

scholarly journals Ortho-surgical Management of Severe Skeletal Class II Div 2 Malocclusion in Adult

2017 ◽  
Vol 7 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Suchita Tarvade Daokar ◽  
Gauri Agrawal ◽  
Charushila Chaudhari ◽  
Sheetal Yamyar
Keyword(s):  
Case Report ◽  
Surgical Approach ◽  
Class Ii ◽  
Mandibular Advancement ◽  
Class Ii Malocclusion ◽  
Growth Modulation ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Bilateral Sagittal Split Osteotomy ◽  
Mandibular Retrognathism

Skeletal Class II malocclusion is attributed to maxillary prognathism, mandibular retrognathism or combination of both. In adolescent cases, the treatment includes growth modulation with headgear or myofunctional appliances. However in adults, optimum esthetic and functional efficacy can be achieved by orthodontic-surgical combination. This case report describes a 21 years old post-pubertal male with severe skeletal Class II discrepancy with normal maxilla and retrognathic mandible. The case was treated with bilateral sagittal split osteotomy (BSSO) with mandibular advancement approach. Straight profile, pleasing esthetics, bilateral Class I molar and canine relationship, normal overjet and overbite were achieved because of a combined ortho-surgical approach.

scholarly journals Skeletal Class II Case Presentation: Utilization of the AdvanSync 2 Appliance

2018 ◽  
Vol 8 ◽  
pp. 168-174
Author(s):  
Bill M. Dischinger
Keyword(s):  
Class Ii ◽  
Mandibular Advancement ◽  
Permanent Teeth ◽  
Herbst Appliance ◽  
Case Presentation ◽  
Skeletal Class ◽  
Excellent Outcome ◽  
Skeletal Class Ii ◽  
Facial Esthetics ◽  
Division 2

The Herbst appliance has been used routinely in the specialty of orthodontics for nearly 40 years. Over this time, many design variations have been utilized. One of the recent designs is the AdvanSync 2 appliance, manufactured by Ormco. The AdvanSync 2 appliance is smaller than the conventional Herbst appliances and allows the clinician to place braces on all the permanent teeth forward of the first molars. In the case presented, the patient presented with a skeletal Class II, division 2 malocclusion. Facially, it was determined that mandibular advancement would be advantageous for ideal facial esthetics. The result of treatment utilizing the Damon System braces and the AdvanSync 2 Class II corrector was an excellent outcome both dentally and in regard to facial esthetics.

scholarly journals Mesial Rotation of the Upper First Molar: Association with Anterior Dental Crowding in Mixed and Permanent Dentition

2020 ◽  
Vol 10 (15) ◽  
pp. 5301
Author(s):  
Vincenzo Quinzi ◽  
Simona Tecco ◽  
Alessandro Nota ◽  
Eleonora Caggiati ◽  
Stefano Mummolo ◽  
...  
Keyword(s):  
Class Ii ◽  
Permanent Dentition ◽  
Mixed Dentition ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Chi Square ◽  
Anterior Crowding ◽  
Dental Crowding

The position of the upper first molar (UFM) is currently considered the “key of occlusion”. The purpose of this study was to evaluate the prevalence of the mesiorotated UFM, and its relationship with anterior dental crowding in mixed and permanent dentition. Intra-oral scans of upper dental arches of 180 subjects with mixed dentition and 169 subjects with permanent dentition were retrospectively analyzed to investigate the presence of UFM mesiopalatal rotation and presence of anterior crowding. The occlusal relationship and the presence of caries were also recorded. In subjects with permanent dentition, there was a statistically significant correlation between anterior crowding and UFM mesiopalatal rotation (Pearson’s chi-square = 9.03; p = 0.06). Among cases with permanent dentition, subjects with UFM mesiopalatal rotation showed an OR = 3.28 (95% CI = 0.99–10.93; p = 0.042) of moderate/severe anterior dental crowding, respect to subjects without UFM rotation. In subjects with mixed dentition, there was a statistically significant correlation between molar occlusal relationship and UFM mesiopalatal rotation (Pearson’s chi-square = 14.98; p = 0.002), and subjects with molar class II showed a OR = 10.2 (95% CI = 2.16–48.22; p = 0.0005) to present UFM mesiopalatal rotation, with respect to subjects with molar class I. UFM mesiopalatal rotation is associated to anterior dental crowding in permanent dentition, and to class II malocclusion in mixed dentition.

Extraction or non-extraction treatment for Class II division 2 malocclusion?

2018 ◽  
Vol 19 (3) ◽  
pp. 88-89
Author(s):  
Benjamin J Goldstein ◽  
Analia Veitz-Keenan
Keyword(s):  
Class Ii ◽  
Division 2 ◽  
Extraction Treatment

Comparative Dentoskeletal Study of Class II Division 1 and Class II Division 2 Malocclusion Subjects

2011 ◽  
Vol 1 (1) ◽  
pp. 36-41
Author(s):  
Jyoti Dhakal
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Basic Difference ◽  
Cephalometric Radiograph ◽  
Significant Difference ◽  
Division 1 ◽  
Dentoskeletal Morphology ◽  
Division 2 ◽  
Dental Cast ◽  
Class Ii Division 1

The dentoskeletal characteristics of Class II malocclusion subjects were evaluated using cephalometric radiograph and dental cast of 60 untreated patients. The sample included 30 Class II Division 1 and 30 Class II Division 2 malocclusion patients. The inter-canine, inter-premolar, inter-molar, inter-canine alveolar, inter-premolar alveolar, inter-molar alveolar widths are measured on study models. The result showed statistically significant difference between the groups for mandibular inter-canine width only. The cephalometric analysis revealed that SNB angle was responsible for the skeletal sagittal difference between the two groups except for the position of maxillary incisors. No basic difference in dentoskeletal morphology existed between Class II Division 1 and Class II Division 2 malocclusions.

scholarly journals The British Orthodontic Society MOrth Cases Prize 2019

2021 ◽  
pp. 146531252098287
Author(s):  
Adam C Jowett
Keyword(s):  
Class Ii ◽  
Functional Appliance ◽  
First Case ◽  
Permanent Molars ◽  
Fixed Appliances ◽  
Unerupted Teeth ◽  
Removable Appliance ◽  
Division 2 ◽  
Lower Arch ◽  
First Permanent Molars

This paper describes the orthodontic treatment of two cases that were successful in winning the British Orthodontic Society (BOS) Membership in Orthodontics (MOrth) Cases Prize in 2019. The first case describes the management of a 12-year-old girl with a Class II division 2 malocclusion complicated by moderate upper and lower arch crowding, multiple unerupted teeth, restored lower first permanent molars, pseudo-transposition of the lower left lateral incisor and canine, and diminutive upper lateral incisors. Treatment involved a combination of an upper removable appliance followed by upper and lower preadjusted edgewise fixed appliances. Anteroposterior correction and overbite reduction was achieved with triangular Class II elastics with posterior occlusal disengagement. Both upper permanent canines were exposed and aligned, and the diminutive upper incisors built up with resin-based composite. Treatment was completed over a period of 23 months. The second case describes the management of a 13-year-old boy with a Class II division 2 malocclusion complicated by severe upper and lower arch crowding with unerupted UR5, UL4, LR3, rotated LR5, an increased overbite complete to tooth, buccally displaced upper canines and hypoplastic upper first premolars. Treatment involved a first phase of functional appliance therapy, followed by the extraction of UR4, UL4, LL5, LR4 and upper and lower preadjusted edgewise fixed appliances over a 28-month period.

scholarly journals Comparative Evaluation of Adenoids, Upper Airway, and Tongue Using “Predictors of Difficult Airways” in Class II Division 1 and Division 2 Cases with Class I Cases: Prospective In Vivo Observational Study

2021 ◽  
pp. 030157422096341
Author(s):  
Smita Mangesh Choudhari ◽  
Sunita Shrivastav
Keyword(s):  
Significant Positive Correlation ◽  
Upper Airway ◽  
Class Ii ◽  
Class I ◽  
Positive Correlation ◽  
Division 1 ◽  
Difficult Airways ◽  
Mandibular Protrusion ◽  
Division 2 ◽  
Class Ii Division 1

Introduction: Altered nasorespiratory function leads to altered craniofacial growth. Thus, airway evaluation is important for preventive, interceptive, and corrective orthodontic treatment. The aim of this study was to evaluate and compare adenoids, the upper airway, the tongue, and mandibular dimensions using “predictors of difficult airways” in class II division 1 and class II division 2 cases with class I cases. Method: Sixty subjects of age 15 to 18 years were divided into 3 groups (group 1: class I cases; group 2: class II division 1 cases; and group 3: class II division 2 cases) based on cephalometric parameters, with 20 cases in each group. Cephalometric evaluation of adenoids and the nasopharyngeal airway was done using the Handelman–Osborne area method. Upper and lower airway evaluation was done using McNamara’s linear method. “Predictors of difficult airways” were used for evaluation of the airway, which included nasal competency, the Mallampati scale, mandibular length, mandibular protrusion, and the thyromental distance. Results: The present study found a significant positive correlation between the grades of nasal competency and percentage adenoid wall area, and a significant negative correlation between the grades of nasal competency and the upper airway. There was a significant positive correlation between the grades of nasal competency and mandibular length, and a significant positive correlation between the grades of mandibular protrusion and mandibular length. There was a significant positive correlation between the grades of the thyromental distance and mandibular length. Conclusion: It was concluded that the “predictors of difficult airways” would be helpful in early diagnosis and identification of potential risk factors that may cause “breathing disorders”–related malocclusions and later on increase the risk of developing OSA.

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