scholarly journals Alveolar and symphysis regions of patients with skeletal class II division 1 anomalies with different vertical growth patterns

2012 ◽  
Vol 06 (02) ◽  
pp. 123-132 ◽  
Author(s):  
Elcin Esenlik ◽  
Fidan Alakus Sabuncuoglu
Keyword(s):  
Normal Subjects ◽  
Class Ii ◽  
Growth Patterns ◽  
Control Group ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms ◽  
Division 1 ◽  
Main Factor ◽  
Class Ii Division 1

ABSTRACTObjectives: The aim of this study was to investigate the alveolar and symphysis region properties in hyper-, hypo-, and normodivergent Class II division 1 anomaliesMethods: Pretreatment lateral cephalograms of 111 young adult female patients with skeletal Class II division 1 anomalies were compared to those of 54 Class I normal subjects (control group). Class II cases were divided into hyperdivergent (n = 58), hypodivergent (n = 19), and normodivergent groups (n = 34). The heights and widths of the symphysis and alveolus and the depth of maxillary palate were measured on the lateral cephalogramsResults: Mean symphysis width was wider in the hypodivergent Class II group than in the other groups, while mean symphysis height was similar among all groups. Maxillary palatal depth, upper incisor angle, upper and lower molar alveolar heights, and Id–Id′ width were also similar among groupsConclusion: Symphysis width is the main factor in the differential diagnosis of Class II division 1 anomaly rather than symphysis height and hypodivergent Class II Division 1 anomaly is more suitable for mandibular incisors movements. (Eur J Dent 2012;6:123-132)

scholarly journals Cephalometric characterization of skeletal Class II, division 1 malocclusion in white Brazilian subjects

2005 ◽  
Vol 13 (2) ◽  
pp. 198-203 ◽  
Author(s):  
Marcos Roberto de Freitas ◽  
Marcos Antonio Cirino dos Santos ◽  
Karina Maria Salvatore de Freitas ◽  
Guilherme Janson ◽  
Daniel Salvatore de Freitas ◽  
...  
Keyword(s):  
Sample Selection ◽  
Class Ii ◽  
Control Group ◽  
Experimental Sample ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms ◽  
Significant Difference ◽  
Division 1 ◽  
Class Ii Division 1

One of the main points in Orthodontic studies is the growth and development of the craniofacial structures. In this study, skeletal cephalometric characteristics of Class II, division 1 malocclusion were assessed in lateral cephalograms. The experimental sample comprised 55 white Brazilian individuals of both genders, with an ANB angle of 4.5 degrees or higher. The mean age of the subjects was 13.5 years. Steiner and McNamara Jr cephalometric analyses were used in order to evaluate the relation between angular and linear positions of the apical bases, the dental and cranial structures, comparing with the values obtained in the control group (available at Bauru Dental School-USP). The results showed that, for the experimental group, the maxilla was well positioned in relation to the cranial base. The maxillomandibular relation showed an increased overjet, which was predictable based on criteria for sample selection. The geometrical proportion of the apical bases presented a small mandible and a normal sized maxilla. The craniofacial growth pattern presented a vertical tendency. The maxillary incisors were buccally inclined and well positioned by the linear evaluation. The mandibular incisors showed marked buccal inclination and protrusion. No statistically significant difference between genders was found.

scholarly journals Long Term Stability of Skeletal Class II Treatment with Modified Bionator Followed by Fixed Appliance - A Case Report

2021 ◽  
Vol 10 (22) ◽  
pp. 1726-1731
Author(s):  
Harshil Naresh Joshi ◽  
Jay Soni ◽  
Santosh Kumar Goje ◽  
Arth Patel ◽  
Shireen Mann ◽  
...  
Keyword(s):  
Case Report ◽  
Class Ii ◽  
Growth Patterns ◽  
Growth Potential ◽  
Human Populations ◽  
Skeletal Class ◽  
Class Ii Treatment ◽  
Skeletal Class Ii ◽  
Division 1 ◽  
Class Ii Division 1

The most prevalent malocclusion seen in day-to-day practice is Class II division 1 malocclusion. Most patients with malocclusions in class II division 1 have an underlying skeletal difference between the maxilla and the mandible. The treatment of skeletal class II division 1 depends on the patient's age, the ability of growth potential, the seriousness of malocclusion, and the patient's adherence to treatment. Myofunctional equipment can be successfully used to treat rising patients with deficient mandible class II division 1 malocclusion. This case report shows a focus on Class II Division 1 care due to mandibular deficiency using modified bionator appliances accompanied by fixed mechanotherapy with growth modification approach. Class II Division 1 is one of the most widely encountered form of malocclusion in human populations. The common characteristic of Class II Div 1 malocclusion in growing children is mandibular retrusion, according to Dr. James McNamara.1 The prevalence of Skeletal Class II malocclusion is 15 % of the world's total population. Underlying difference between Maxillary & Mandibular jaw makes the Class II Div 1 malocclusion more complex than it appears. It’s due to a contribution of only maxilla, or only mandible, or a combination of both. The treatment of Class II division 1 relies on the patient's age, growth ability, degree of malocclusion, and patient compliance with therapy.1,2 The cases with retrognathic mandible must be addressed by altering the direction & amount of mandibular growth by using functional appliances.3 The Bionator is a tooth-borne appliance that significantly changes dental and skeletal component of the face through a repositioning of mandible in a more protrusive & balanced way, selective eruption of teeth and profile enhancement.4-7 The Balters Bionator was first introduced in 1960 by Wilhelm Balters as a functional appliance & still one of the most widely used removable appliances for correction of mandibular retrognathism.8 In functional orthopaedics, all aspects of genetically determined individual growth patterns are important, most particularly time, potential, and growth direction. Although during the prepubertal phase there is limited skeletal development, substantial growth occurs during puberty, but with great individual variation. To prevent damage to erupting teeth and to normalize jaw growth, early functional orthopaedic intervention in the prepubertal phase is used.9,10,11 The purpose of this case report is to illustrate how satisfactory results were obtained in the treatment of Class II division 1 malocclusion with modified Bionator in young patients. The positive facial, dental and cephalometric improvements are also illustrated, with the aid of proper diagnosis, amplified by excellent patient cooperation in case selection.

scholarly journals Evaluation of tongue posture & dimensions in relation to skeletal Class I and Class II patterns- A cephalometric study

2021 ◽  
Vol 7 (4) ◽  
pp. 276-281
Author(s):  
Puja Khanna ◽  
Sumit Chhabra ◽  
Preeti Munjal ◽  
Sunny Mittal ◽  
Nishtha Arora
Keyword(s):  
Statistical Tests ◽  
Class Ii ◽  
Class I ◽  
Control Group ◽  
Skeletal Class ◽  
Normal Occlusion ◽  
Division 1 ◽  
Skeletal Pattern ◽  
Bonferroni Test ◽  
Class Ii Division 1

Association of tongue posture with dental and facial skeletal pattern have been suggested in past. This study was undertaken to assess tongue posture and dimensions in Class I and Class II Dentoskeletal patterns to determine whether any correlation exists between tongue posture and skeletal pattern of an individual. Cephalograms of 150 individuals (aged 18-23 years), taken in Natural Head Position (NHP) and tongue at rest were divided into three groups i.e. Group 1 – Class I Normal occlusion, Group 2 – Class II Division 1 Normodivergent and Group 3 – Class II Division 1 Hypodivergent, consisting of 50 samples each. To ensure the rest position of tongue, patient was asked to relax for 30 seconds after coating the tongue with barium sulphate in midline and then to swallow, and the X-ray was taken at the end of swallowing. Each group was divided into two subgroups according to sex. Groups were constituted according to the Frankfort mandibular plane angle (FMA) angle. The subjects who had skeletal Class II pattern due to mandibular retrusion and not due to maxillary prognathism were only included in the study group. Statistical analysis was done using the software SPSS version 21.0. The statistical tests used were unpaired t-test and One-way ANOVA test with post-hoc bonferroni test. The p-value was considered significant if less than 0.05.The dorsum of the tongue was higher at back and lower in front in Class II Division 1 Hypodivergent group as compared to Class I Normal occlusion group (P<.05). Tongue height and tongue length were significantly reduced in Class II Division 1 Normodivergent and Class II Division 1 Hypodivergent malocclusion groups when compared to Class I control group (P<.05).The study supports the existence of a relationship between posture & dimensions of the tongue with Class I and Class II skeletal patterns.

scholarly journals Fixed Lingual Mandibular Growth Modificator: a new appliance for Class II correction

2013 ◽  
Vol 18 (4) ◽  
pp. 70-81
Author(s):  
Osama Hasan Alali
Keyword(s):  
Case Report ◽  
Class Ii ◽  
Deep Bite ◽  
Mandibular Growth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Division 1 ◽  
Class Ii Division 1

INTRODUCTION: This article demonstrates the description and use of a new appliance for Class II correction. MATERIAL AND METHODS: A case report of a 10-year 5 month-old girl who presented with a skeletally-based Class II division 1 malocclusion (ANB = 6.5º) on a slightly low-angle pattern, with ML-NSL angle of 30º and ML-NL angle of 22.5º. Overjet was increased (7 mm) and associated with a deep bite. RESULTS: Overjet and overbite reduction was undertaken with the new appliance, Fixed Lingual Mandibular Growth Modificator (FLMGM). CONCLUSION: FLMGM may be effective in stimulating the growth of the mandible and correcting skeletal Class II malocclusions. Clinicians can benefit from the unique clinical advantages that FLMGM provides, such as easy handling and full integration with bracketed appliance at any phase.

scholarly journals TADs assisted Camouflage Orthodontic Treatment of Class II Division 1 Malocclusion in a Non Growing Patient: A case report

2018 ◽  
Vol 8 (2) ◽  
pp. 55-59
Author(s):  
Ankita Gupta ◽  
Trilok Shrivastava
Keyword(s):  
Case Report ◽  
Class Ii ◽  
Maxillary Incisor ◽  
Mandibular Incisor ◽  
Anterior Crowding ◽  
Skeletal Class ◽  
Curve Of Spee ◽  
Skeletal Class Ii ◽  
Division 1 ◽  
Class Ii Division 1

Class II, Division I malocclusion has been described as the most frequent treatment problem in orthodontic practice. Aim & objectives of the present case report was to evaluate the management of skeletal Class II division 1 malocclusion in non growing patient with extraction of upper first premolars. Clinical and cephalometric evaluation revealed skeletal Class II with Angles Class II division 1 malocclusion with mild mandibular anterior crowding and increased overjet, severe maxillary incisor proclination, mild mandibular crowding, exaggerated curve of spee, convex profile, incompetent lips, increased overjet and overbite. Maxillary first premolars were extracted followed by en-masse retraction of anteriors with the help of temporary anchorage devices (TADs) to avoid anchorage loss. Mandibular incisor was extracted to correct curve of spee. Following treatment marked improvement in patient’s smile, facial profile and lip competence were achieved and there was a remarkable increase in the patient’s confidence and quality of life.

scholarly journals Full Mouth Reconstruction of a Skeletal Class II Division 1 Patient with Adenoid Cystic Carcinoma Using an Interim Immediate Obturator and a Definitive Obturator

2017 ◽  
Vol 2017 ◽  
pp. 1-5
Author(s):  
Mehran Bahrami ◽  
Seyed Mehran Falahchai
Keyword(s):  
Adenoid Cystic Carcinoma ◽  
Anterior Segment ◽  
Class Ii ◽  
Skeletal Class ◽  
Anterior Teeth ◽  
Adenoid Cystic ◽  
Skeletal Class Ii ◽  
Division 1 ◽  
The Right ◽  
Class Ii Division 1

A 61-year-old female patient with adenoid cystic carcinoma (ACC) of the right maxilla and Angle class II division 1 malocclusion had received a subtotal maxillectomy in right side and used a conventional clasp-retained obturator. After implants placement, a maxillary interim immediate obturator (IIO) and then a definitive obturator using six endosseous implants were fabricated. During one-year follow-up, the patient was completely satisfied. Ideally, after implants placement in edentulous patients suffering from hemimaxillectomy, an implant-supported obturator (ISO) is designed in order to prevent nasal reflux and to improve speech and swallowing. However, in the following case, because of skeletal class II division 1 malocclusion and implants insertion in the premaxilla, using an ISO was impossible because it would cause excessive upper lip protrusion and lack of anterior teeth contact. Therefore, a five-unit implant-supported fixed partial denture (FPD) was fabricated in the maxillary anterior segment so that anterior teeth contacts were possible and the patient’s normal lip support was achieved. A bar and three ball attachments were used in the maxillary posterior segment. A closed-hollow-bulb ISO was preferred. Conventional ISO in these patients results in several problems. Using a maxillary anterior FPD along with ISO caused satisfactory results in the current patient.

scholarly journals Successful orthodontic treatment of Class II division 1 malocclusion in a non growing patient : A case report

2013 ◽  
Vol 2 (2) ◽  
pp. 41-45
Author(s):  
MW Ali ◽  
MZ Hossain
Keyword(s):  
Stainless Steel ◽  
Case Report ◽  
Class Ii ◽  
Maxillary Incisor ◽  
Skeletal Class ◽  
Canine Retraction ◽  
Anterior Teeth ◽  
Skeletal Class Ii ◽  
Division 1 ◽  
Class Ii Division 1

Aim & objectives of the present case report was to evaluate the management of skeletal Class II division 1 malocclusion in non growing patient with extraction of upper first premolars. Clinical and cephalometric evaluation revealed skeletal Class II division 1 malocclusion with severe maxillary incisor proclination, convex profile, average mandibular plane angle, incompetent lips, increased overjet and overbite. After extraction of upper 1st premolars, canine retraction was done which was followed by retraction of severely proclined upper anterior teeth by judicious control of third order bend in rectangular stainless steel arch wire with “V” loop . For anchorage management, intra oral anchorage with tip back & toe in bends in stainless steel arch wire was satisfactory. Following treatment marked improvement in patient’s smile, facial profile and lip competence were achieved and there was a remarkable increase in the patient’s confidence and quality of life. DOI: http://dx.doi.org/10.3329/bjodfo.v2i2.16165 Ban J Orthod & Dentofac Orthop, April 2012; Vol-2, No.2, 41-45

scholarly journals Effective and Efficient Correction of Severe Skeletal Class II Division 1 Malocclusion with Intermaxillary Elastics

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Mohammed K. Badri
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Division 1 ◽  
The Status ◽  
Patient Cooperation ◽  
Growth Modification ◽  
Class Ii Elastics ◽  
Class Ii Division 1

Treatment of Class II malocclusion accompanied with a skeletal discrepancy is challenging. The approach of correction depends on several factors such as the status and pattern of growth, severity of the malocclusion, and patient cooperation. This case report describes a successful management of a 12-year-old young adolescent boy that was presented with a Class II division 1 malocclusion with an underlying skeletal discrepancy in horizontal and vertical dimensions. Growth modification was achieved by means of bite opening and unlocking the mandible together with Class II elastics and mechanics. Treatment was highly effective and efficient by achieving all treatment goals within a period of 18 months.

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