scholarly journals Can Orthodontic Treatment Be Stable 20 Years after the End of the Treatment Scheme? Treatment of a Class 2, Division 1 Malocclusion with Severe Skeletal Discrepancy and Its 20-Year Follow-Up

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Domenico Aiello ◽  
Riccardo Nucera ◽  
Stefania Costa ◽  
Michele Mario Figliuzzi ◽  
Sergio Paduano
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Class I ◽  
Second Phase ◽  
Correct Identification ◽  
Italian Population ◽  
Lower Lip ◽  
Oral Breathing ◽  
Mandibular Retrusion

Class II malocclusions, after class I malocclusions, are the most frequent in the juvenile Italian population. They are most often skeletal in origin and due to mandibular retrusion. Functional devices seem to have a beneficial effect on the growth of the jaw. Long-term maintenance of the achieved results is essential for therapeutic success in any orthodontic treatment; moreover, the retention phase should last as long as possible, especially in the lower anterior sector. A female patient aged 10 years and 3 months presented a visibly convex profile and a severe mandibular retrusion. The anamnesis brought to light the habit of oral breathing and lower-lip sucking. The cephalometric analysis showed a normodivergent skeletal class II. The first treatment phase involved the use of a Bass type for 12 months at the end of the functional treatment; the second phase of fixed therapy was carried out following the principles of bioprogressive techniques. The photos at the end of treatment show an important improvement in the profile; a full class I ratio of molar and canine teeth was achieved with an excellent interarch relationship and a correction of the V-shaped upper arch. The result is occlusally and profilometrically stable after 2, 4, 5, 10, 14, and 20 years. The maintenance of a stable orthodontic result over time is the result not only of a correct and physiological occlusion but also and above all of a correct diagnosis and correct identification of problems that can cause the malocclusion itself. Flawed habits such as interposition of the lower lip and oral breathing must be intercepted and corrected early in order to correct them and not affect the long-term result of orthodontic treatment. In this case, a functional device associated with an orthodontic fixed finishing and a correct retention phase were necessary to correctly treat a second-class mandibular retrusion whose result remained stable 20 years after the end of therapy.

scholarly journals Prevalence of malocclusion in north Cyprus School

2019 ◽  
Author(s):  
Nadejda Beleva ◽  
Nazli Idil Kacamak ◽  
Cagla Sin ◽  
Beste Kamiloglu
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Class I ◽  
Correct Identification ◽  
Class Iii ◽  
Dental Services ◽  
National Education ◽  
Northern Cyprus ◽  
Male Patients ◽  
Division 2

Abstract Background. The epidemiology of the population living in a country plays an important role in the planning and implementation of dental services. Correct identification of the need for orthodontic treatment in individuals is a very complex subject and requires detailed analysis. The aim of this study was to measure the prevalence of malocclusion among randomly selected subjects aged 12-15 years attending secondary schools regardless of any socio-economic or social status in Northern Cyprus.Methods. After the approval of the competent authorities in the Ministry of National Education and the Ministry of Health of Northern Cyprus and of the parents whose subjects were to take part in the study, the evaluation was carried out by a team of three people, two of whom are in the process of specializing in orthodontics and one doctoral student at the qualification stage. The study included a randomly selected sampling composed of 426 subjects (203 females and 223 males). Results. The statistical evaluation of the samples collected in the study found that 20.6% of the subjects had no occurrence of occlusion, 74.4% had Class I, 21.1% had Class II (part 1, 18.8%, part 2, 2.3%) and 4.5% had Class III malocclusion. Of the 419 patients, 86 (20.2%) were in need of orthodontic treatment. Although not statistically significant, it was determined that 19.7% of female patients and 20.7% of the male patients were in need for orthodontic treatment.Conclusions. The most common orthodontic malocclusion in Cyprus is Class I, the least common malocclusion is Class II division 2.

scholarly journals The Assessment of Fixed Orthodontic Treatment Successfulness Using American Board of Orthodontics System in Airlangga University Dental Hospital

2021 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
I Gusti Aju Wahju Ardani ◽  
Dimas Iman Nugroho ◽  
Fakhma Zakki Ramadhani ◽  
Ida Bagus Narmada
Keyword(s):  
Soft Tissue ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
Class I ◽  
Orthodontic Appliances ◽  
Treatment Needs ◽  
Lower Lip ◽  
Skeletal Malocclusion ◽  
Before And After ◽  
Dental Hospital

Background: The purpose of orthodontic treatment is to improve efficient function, tissue balance, and obtain harmonious facial aesthetic results so the successfulness of orthodontic treatment should be comprehensive because maloclusion can occur in dentoalveolar, skeletal and soft tissue tissues. Purpose: This study aims to evaluate the successfulness of orthodontic treatment using fixed orthodontic appliances in Orthodontic Clinic Dental Hospital, Faculty of Dental Medicine Universitas Airlangga by means of ABO system. Methods: Descriptive analytic by comparing the data before and after treatment, then the sample was divided into 3 based on the skeletal malocclusion group. Dental efficacy was measured using the ABO system and the Bolton anterior ratio. Skeletal success by looking at ANB, FHI, and proportion of anterior facial height (UAFH: LAFH). Meanwhile, the success of the soft tissue was by seeing the changes in the aesthetic lines of the upper and lower lips. The statistics used in this study were Kruskal-Whallis for the ABO DI and OGS difference test, Spearman to determine the relationship between ABO DI and OGS measurement components and McNemar and Wilcoxon to determine the difference before and after treatment on all measurements. Results: Treatment of class I skeletal malocclusion had the best mean ABO OGS score. Class II and III treatments had significant treatment advancements. In other measurements, there are significant differences after treatment at FHI in class I, (UAFH: LAFH) in class II and lower lip esthetic line in class II. Conclusion: Generally, the successfulness of orthodontic treatment in Orthodontic Clinic Dental Hospital, Faculty of Dental Medicine, Universitas Airlangga was adequate. In addition, the assessment of the successful orthodontic treatment needs to be adjusted to the standard values that can be accepted by a certain population, especially the Javanese population.

The Retroclined Upper Incisor

1975 ◽  
Vol 2 (4) ◽  
pp. 207-216 ◽  
Author(s):  
G. G. T. Fletcher
Keyword(s):  
Oral Cavity ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
Vertical Dimension ◽  
Class I ◽  
Lower Lip ◽  
Causative Factors ◽  
Relationship Of ◽  
Division 2

In the interest of further clarification of the interaction of the multiple causative factors of upper incisor retroclination, the development of Class II Division 2 occlusion is contrasted to that of Class I. The patients whose records were used had not received orthodontic treatment. It was found that upper incisor retroclination in Class II Division 2 occurred after their emergence into the oral cavity. The effect is attributed to the upper incisors being able to erupt well within the cover of the lower lip through a combination of circumstances related to the proportional balance of the patient's facial structures in the vertical dimension. The lower lip would guide the upper incisors into retroclined positions, only if the latter were unobstructed by digit, tongue or other teeth of either arch. This implied not only a critical balance in size and relationship of the facial structures in the vertical dimension but also equally critical balances in the antero-posterior and lateral dimensions, without which the lower lip factor alone would be ineffective.

scholarly journals Another way of looking at treatment stability

2016 ◽  
Vol 86 (5) ◽  
pp. 721-726 ◽  
Author(s):  
Kaoutar Zinad ◽  
Annemie M.W.J. Schols ◽  
Jan G.J.H. Schols
Keyword(s):  
Orthodontic Treatment ◽  
Treatment Initiation ◽  
Peer Assessment ◽  
Treated Group ◽  
Class I ◽  
Physiological Changes ◽  
Treatment Responses ◽  
Study Participants ◽  
Gender Specific

ABSTRACT Objective:  To determine the contribution of normal physiological changes to the overall manifestation of a relapse after orthodontic treatment. We analyzed long-term changes in the dentition of patients with Class I malocclusions after orthodontic treatment compared with a representative group with untreated Class I malocclusions. Materials and Methods:  Study participants (n  =  66; mean age, 12 years at treatment initiation) were treated for Class I malocclusions. Dental changes were evaluated at 2, 5, 10, and 15 years after treatment. Control participants (n  =  79) had untreated Class I malocclusions (n  =  53 evaluated at ages 12 and 22 years; n  =  26 evaluated at ages 19 and 39 years). Dental changes were evaluated with the Peer Assessment Rating (PAR) index. Results:  In untreated and treated groups, PAR scores increased over time with gender-specific changes. In the untreated groups, the PAR score significantly increased in male participants between the ages of 12 and 22 years (P  =  .04) and in female participants between the ages of 19 and 39 years (P  =  .001). In the treated group, early posttreatment changes were primarily related to the initial treatment response. Later changes in the PAR score could be attributed to physiological changes, with the same gender-specific changes as those observed in the untreated group. Conclusions:  The pattern of physiological changes in dentition for participants between the ages of 12 and 39 was different between sexes. Females showed more relapse than males between 10 and 15 years posttreatment. This distinction should be considered when evaluating long-term orthodontic treatment responses.

scholarly journals Correction of gummy smile by superior repositioning of maxilla in Bangladeshi people

2016 ◽  
pp. 1-5
Author(s):  
Abdullah Al Masud ◽  
Muhammad Shohag Shikder ◽  
Mohammad Tofazzal Hossan ◽  
Mohammad Mahfuzul Gani ◽  
Mohammad Wahidul Islam
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Le Fort I Osteotomy ◽  
Le Fort ◽  
Le Fort I ◽  
Gummy Smile

Vertical maxillary excess is associated with gummy smile, incompetent lip,  bimaxillary proclination, Angle’s class-I or class-II malocclusion with or without retogenia. After proper evaluation preoperative orthodontic treatment was performed in every cases and superior repositioning of the maxilla by Le Fort-I osteotomy is presented. Three patients with maxillary excess associated with retrogenia or microgenia were treated with this technique in combination with genioplasty. The maxillary segment was repositioned a maximum of 7.0 mm superiorly at point A. The mandible autorotated anterosuperiorly to achieve sound occlusion. Point B moved 1.0–3.0 mm anteriorly and 5.0–8.0 mm superiorly. The pogonion moved 4.0 mm anteriorly in a case done without genioplasty and the pogonion moved maximum 8.0mm in case done in combination with genioplasty. All patients obtained sound occlusion and a good profile after the operation. Almost no skeletal relapse was observed during 3 years of postoperative follow-up. Amount of gingiva showing during smile was ranges from 5.0mm –7.0mm which was 0-2.0mm after superior repositioning of the maxilla. Ban J Orthod & Dentofac Orthop, April 2016; Vol-6 (1-2), P.1-5

scholarly journals Citologia esfoliativa da cavidade bucal

2021 ◽  
Vol 40 (1) ◽  
pp. 52-56
Author(s):  
Pantelis Varvaki Rados ◽  
Manoel Sant'Ana Filho ◽  
João Jorge Diniz Barbachan ◽  
Onofre Quadros ◽  
Letícia Cavalcanti Fatturi Ruppenthal ◽  
...  
Keyword(s):  
Early Stage ◽  
Qualitative Evaluation ◽  
Class Ii ◽  
Class I ◽  
Anatomical Site ◽  
Specific Cell ◽  
Cytological Diagnosis ◽  
Class Iii ◽  
Lower Lip ◽  
Cytological Alterations

Cytopatholory is based on the analysis of mucosa scaled cells. It is able to reveal atypias before there is a perceivable clinical manifestation, contributing for the early detection of cytological alterations suspected of malignancy. Among the malignant neoplasias, the Epidermoid Carcinoma is the most prevalent in the mouth, reaching a percentage of 95 % of cases. By the early stage, most part of Epidermoid Carcinomas are not recognized at the clinical examination. The present study aimed to experience students for the work of collecting, preparing of material and analysis of results obtained by the scaling of the buccal mucosa. 82 patients Who were seeking for dental assistance were undertaken to examination at Universidade Federal do Rio Grande do Sul Dental School Triage Division. The selected anatomical areas for the collecting of material were the lower lip redness, tongue lateral edge and mouth ground. Malignancy cytological criteria were used for the qualitative evaluation of samples. For each smear a cytological degree was applicd, according to the criteria of Papanicolaou and Traut. Class I was the predominant cytological diagnosis (57.8 0/0) against Class II cytological diagnosis (38.2 0/0) and Class III (4.0 0/0). Most of lip smears (80.5 0/0) and ground (52.5 0/0) were classified as Class I, while on the tongue Class II diagnosis were predominant (57.3 0/0). The quantitative analysis of epithelial maturation enabled the acknowledgement of a specific cell pattern for each anatomical site examined. The presence of suspected smears, clinically unconfirmed, suggests the need of further studies on greater population samples.

scholarly journals Long-term skeletal effects of high-pull headgear followed by fixed appliances for the treatment of Class II malocclusions

2018 ◽  
Vol 88 (5) ◽  
pp. 530-537
Author(s):  
E. Erin Bilbo ◽  
Steven D. Marshall ◽  
Karin A. Southard ◽  
Verrasathpurush Allareddy ◽  
Nathan Holton ◽  
...  
Keyword(s):  
Class Ii ◽  
Class I ◽  
Control Group ◽  
Orthodontic Appliances ◽  
Skeletal Changes ◽  
Fixed Orthodontic Appliances ◽  
Horizontal Growth ◽  
Skeletal Effects ◽  
Fixed Appliances

ABSTRACT Objectives: The long-term skeletal effects of Class II treatment in growing individuals using high-pull facebow headgear and fixed edgewise appliances have not been reported. The purpose of this study was to evaluate the long-term skeletal effects of treatment using high-pull headgear followed by fixed orthodontic appliances compared to an untreated control group. Materials and Methods: Changes in anteroposterior and vertical cephalometric measurements of 42 Class II subjects (n = 21, mean age = 10.7 years) before treatment, after headgear correction to Class I molar relationship, after treatment with fixed appliances, and after long-term retention (mean 4.1 years), were compared to similar changes in a matched control group (n = 21, mean age = 10.9 years) by multivariable linear regression models. Results: Compared to control, the study group displayed significant long-term horizontal restriction of A-point (SNA = −1.925°, P < .0001; FH-NA = −3.042°, P < .0001; linear measurement A-point to Vertical Reference = −3.859 mm, P < .0001) and reduction of the ANB angle (−1.767°, P < .0001), with no effect on mandibular horizontal growth or maxillary and mandibular vertical skeletal changes. A-point horizontal restriction and forward mandibular horizontal growth accompanied the study group correction to Class I molar, and these changes were stable long term. Conclusions: One phase treatment for Class II malocclusion with high-pull headgear followed by fixed orthodontic appliances resulted in correction to Class I molar through restriction of horizontal maxillary growth with continued horizontal mandibular growth and vertical skeletal changes unaffected. The anteroposterior molar correction and skeletal effects of this treatment were stable long term.

Freeman-Sheldon Syndrome: Case Management from Age 6 to 16 Years

1997 ◽  
Vol 34 (2) ◽  
pp. 151-153 ◽  
Author(s):  
Kimie Ohyama ◽  
Takafumi Susami ◽  
Yoshiyuki Kato ◽  
Hiromi Amano ◽  
Takayuki Kuroda
Keyword(s):  
Case Management ◽  
Orthodontic Treatment ◽  
Mouth Opening ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Limited Mouth Opening ◽  
Deep Bite ◽  
Long Term Follow Up

Objective This is the first description of long-term follow-up of a case of Freeman-Sheldon syndrome. Microstomia was treated with a mouth expander for 2 to 3 hours per day before active orthodontic treatment. Separate impressions were necessary in each quadrant of both upper and lower jaws because of limited mouth opening. Conclusion Orthodontic treatment improved the patient's Class II malocclusion, which was accompanied by crowding and a deep bite.

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