scholarly journals Relationship of Lateral Dentoskeletal Morphology to Dental Crowding in Patients With Class II Malocclusions

2016 ◽  
Vol 17 (1) ◽  
pp. 12-22
Author(s):  
Enas Al-Jwary ◽  
Hind Jarjees ◽  
Omar Alluazy
Keyword(s):  
Class Ii ◽  
Dentoskeletal Morphology ◽  
Dental Crowding ◽  
Relationship Of

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 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 Multiple Sclerosis in French Canadians: Evidence for HLA Class II Susceptibility and Resistance Genes

1990 ◽  
Vol 17 (4) ◽  
pp. 382-386 ◽  
Author(s):  
D.G. Haegert ◽  
M. Michaud ◽  
G.S. Francis
Keyword(s):  
Multiple Sclerosis ◽  
Resistance Genes ◽  
Rflp Analysis ◽  
Class Ii ◽  
Hla Class Ii ◽  
Extended Haplotype ◽  
Allele Specific ◽  
Relationship Of ◽  
The Relationship ◽  
Susceptibility And Resistance

ABSTRACT:HLA class II DRBI, DQB1 and DQA1 gene probes were used to study DNA from unrelated French Canadian multiple sclerosis (MS) patients and controls by restriction fragment length polymorphism (RFLP) analysis. An MS-associated and linked series of allele-specific RFLPs or allogenotypes was identified among this relatively homogeneous ethnic group; the allogenotypes include DRwl5, DQw6 and a DQA1 allogenotype termed DQαlb. An additional allogenotype which cross-hybridizes with DQA1 and is termed DQA2 upper (DQA2U), was shown not only to be part of the MS-associated extended haplotype, but also to be independently associated with MS in DRwl5-negative patients. Conversely a second DQA2 allogenotype, termed DQA2 lower (DQA2L) and a DQB1 allogenotype (DQw7) linked to DQA2L showed negative correlations with MS. It seems likely that the relationship of the HLA class II gene region to MS is complex and that MS susceptibility may reflect interaction between disease susceptibility and resistance genes.

scholarly journals The prevalence of malocclusion among 7–15-year-old Lithuanian schoolchildren

Medicina ◽  
2009 ◽  
Vol 45 (2) ◽  
pp. 147 ◽  
Author(s):  
Antanas Šidlauskas ◽  
Kristina Lopatienė
Keyword(s):  
Important Determinant ◽  
Age Groups ◽  
Epidemiological Data ◽  
Dental Arch ◽  
Class Iii ◽  
Posterior Crossbite ◽  
Normal Occlusion ◽  
Dental Crowding ◽  
Relationship Of ◽  
The Relationship

The epidemiological data on the prevalence of malocclusion is an important determinant in planning appropriate levels of orthodontic services. The occurrence of occlusal anomalies varies between different countries, ethnic and age groups. The aim of this study was to describe the prevalence of malocclusion among Lithuanian schoolchildren in the 7–9-, 10– 12-, and 13–15-year age groups assessing occlusal morphology. The study included 1681 schoolchildren aged 7–15 years. The crowding, spacing, overbite, overjet, the relationship of the first upper and lower molars according Angle’s classification, and posterior crossbite were assessed. The study demonstrated that only 257 children had normal occlusion, and 44 had undergone orthodontic treatment among them. The greatest overjet in the studied contingent was 11 mm, and the negative overjet – 3 mm. The overbite ranged between 0 and 6 mm with a mean of 2.29±1.23 mm. Posterior crossbite was recorded in 148 children (8.8%). This study showed that the prevalence of malocclusion among 7–15-year-old Lithuanian schoolchildren is 84.6%. The most common malocclusion was dental crowding. The upper dental arch crowding was registered for 44.1% and lower for 40.3% of all schoolchildren. The class I molar relationship was detected in 68.4% of the subjects, class II – in 27.7%, and class III – in 2.8%.

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