scholarly journals Comparison of the Condyle Sagittal Position of Class I and Class II Division 2 in Orthodontic Patients

2020 ◽  
Vol 21 (9) ◽  
pp. 977-981
Author(s):  
Murilo Fernando Neuppmann Feres ◽  
Osama Eissa ◽  
Marina Guimarães Roscoe ◽  
Tarek El-Bialy
Keyword(s):  
Class Ii ◽  
Class I ◽  
Orthodontic Patients ◽  
Division 2

scholarly journals Environmental Cadmium Exposure and Dental Indices in Orthodontic Patients

Healthcare ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 413
Author(s):  
Hui-Ling Chen ◽  
Jason Chen-Chieh Fang ◽  
Chia-Jung Chang ◽  
Ti-Feng Wu ◽  
I-Kuan Wang ◽  
...  
Keyword(s):  
Cadmium Concentration ◽  
Class Ii ◽  
Cadmium Exposure ◽  
Class I ◽  
P Value ◽  
Tooth Decay ◽  
Class Iii ◽  
Orthodontic Patients ◽  
Urine Cadmium ◽  
The Mean

Background. Previous studies have shown that environmental cadmium exposure could disrupt salivary gland function and is associated with dental caries and reduced bone density. Therefore, this cross-sectional study attempted to determine whether tooth decay with tooth loss following cadmium exposure is associated with some dental or skeletal traits such as malocclusions, sagittal skeletal pattern, and tooth decay. Methods. Between August 2019 and June 2020, 60 orthodontic patients with no history of previous orthodontics, functional appliances, or surgical treatment were examined. The patients were stratified into two groups according to their urine cadmium concentrations: high (>1.06 µg/g creatinine, n = 28) or low (<1.06 µg/g creatinine, n = 32). Results. The patients were 25.07 ± 4.33 years old, and most were female (female/male: 51/9 or 85%). The skeletal relationship was mainly Class I (48.3%), followed by Class II (35.0%) and Class III (16.7%). Class I molar relationships were found in 46.7% of these patients, Class II molar relationships were found in 15%, and Class III molar relationships were found in 38.3%. The mean decayed, missing, and filled surface (DMFS) score was 8.05 ± 5.54, including 2.03 ± 3.11 for the decayed index, 0.58 ± 1.17 for the missing index, and 5.52 ± 3.92 for the filled index. The mean index of complexity outcome and need (ICON) score was 53.35 ± 9.01. The facial patterns of these patients were within the average low margin (26.65 ± 5.53 for Frankfort–mandibular plane angle (FMA)). There were no significant differences in the above-mentioned dental indices between patients with high urine cadmium concentrations and those with low urine cadmium concentrations. Patients were further stratified into low (<27, n = 34), average (27–34, n = 23), and high (>34, n = 3) FMA groups. There were no statistically significant differences in the urine cadmium concentration among the three groups. Nevertheless, a marginally significant p-value of 0.05 for urine cadmium concentration was noted between patients with low FMA and patients with high FMA. Conclusion. This analysis found no association between environmental cadmium exposure and dental indices in our orthodontic patients.

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.

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 Malocclusion Pattern (Angle's) in Mauritian Orthodontic Patients

2012 ◽  
Vol 2012 ◽  
pp. 1-3
Author(s):  
B. H. Durgesh ◽  
Prashanth Prakash ◽  
Ravikumar Ramakrishnaiah ◽  
Basavaraj Subashchandra Phulari ◽  
Abdul Aziz A. Al Kheraif
Keyword(s):  
Ethnic Group ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
Class I ◽  
Age Group ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Chinese Ethnicity ◽  
Orthodontic Patients ◽  
Study Population

The aim of the study was to assess the pattern of malocclusion in different ethnic group of Mauritian population visiting the Orthodontic Department at Mauras College of Dentistry and Hospital, Republic of Mauritius. The study population comprised of 624 patients who visited the orthodontic department during 2010. The clinical examination was conducted by a well-calibrated orthodontist. The data were recorded in the case sheets and was analyzed for presence of angles class I, class II, and class III malocclusion in both male and female patients of Asian, African, Caucasian, and Chinese ethnicity aged 5–55 years. Malocclusion was found to be high in females compared to males. 414 patients (150 male + 264 female) presented with class I, 182 patients (52 male + 130 female) presented with class II, and 28 patients (12 male + 16 female) presented with class III. Asian ethnic group were more affected and patient seeking orthodontic treatment was high in 11–15 years age group.

scholarly journals RADIOGRAPHIC INVESTIGATION OF DENTAL ANOMALIES IN LIBYAN ORTHODONTIC PATIENTS

2015 ◽  
Vol 5 ◽  
Author(s):  
Iman Abdelgader ◽  
Tyisir Gnaiber ◽  
Kadija Emnina ◽  
Sulieman Orofi
Keyword(s):  
Class Ii ◽  
Incidence Rates ◽  
Division I ◽  
Class I ◽  
Class Iii ◽  
Dental Anomalies ◽  
Dental Anomaly ◽  
Ectopic Eruption ◽  
Orthodontic Patients ◽  
Male Subjects

Aim: The purpose of this study was to evaluate the prevalence of dental anomalies in different Libyan orthodontic malocclusions.Materials and Methods: Pretreatment orthodontic records of 252 Subjects (57 Males and 195 Females) were classified as Class I (159), Class II Division I (66), Class II Division II (8) and Class III (19). The incidence rates of specific dental anomalies were investigated and analyzed to study the differences of rates of each anomaly according to sex and malocclusion using descriptive analysisResult: It was found that (53.5%) of the patients had at least one dental anomaly in this study. ectopic eruption was the most prevalent dental anomaly (34.9%) followed by thin pipette-shaped roots and short blunt root (30.1%, 24.2%) respectively.Conclusions: Male subjects showed more ectopic eruption and short blunt root then female, Class I malocclusion had the most prevalent dental anomalies compared to the other malocclusion groups.

scholarly journals Comparison of the population occlusal characteristics in 3 Brazilian regions

2020 ◽  
Vol 9 (10) ◽  
pp. e1839108586
Author(s):  
Marcio da Costa Almeida ◽  
Paula Cotrin ◽  
Fabricio Pinelli Valarelli ◽  
Rodrigo Hermont Cançado ◽  
Ricardo Cesar Gobbi de Oliveira ◽  
...  
Keyword(s):  
Class Ii ◽  
Open Bite ◽  
Class I ◽  
Class Iii ◽  
Chi Square ◽  
Posterior Crossbite ◽  
Individual Traits ◽  
Orthodontic Patients ◽  
Relationship Of ◽  
The Relationship

The objective of this work was to determine the prevalence of individual traits of malocclusion in a sample of three Brazilian regions orthodontic patients and to detect interregional population differences in the prevalence of certain occlusal characteristics.  The present study was based on the examination of dental casts, intraoral photographs and panoramic radiographs of 947 orthodontic patients from 3 cities: 363 from Fortaleza (CE), 270 from Maringá (PR) and 314 from Bauru (SP), respectively, representing the Northeast, South and Southeast Brazilian regions. The relationship of the first maxillary and mandibular molars according to Angle’s classification, overjet, overbite, crowding, posterior crossbite and maxillary median diastema were examined. The chi-square and ANOVA tests were used to determine potential differences in the distribution of malocclusion when stratified Brazilian regions. Class I malocclusion was found in 499 (52.69%), Class II in 395 (41.71%) and Class III malocclusion in 53 (5,59%) subjects of all examined. Deep overbite (3.59%), midline diastemas (5.17%) and posterior crossbite (4.75%) were observed more frequently in Bauru; however, in Maringá, normal overbite (13.3%) and open bite (4.75%) were more prevalent. The results of this study showed that Class I malocclusion was the most prevalent, followed by Class II and Class III malocclusions. These occlusal relationships evaluated in the three Brazilian regions follow the same pattern of frequency as the result presented by the general population of the sample.

scholarly journals Treatment of A Class II Malocclusion Case having Low Mandibular Angle & Deep Bite with Inter-arch Elastics and Reverse Curve Archwire

2013 ◽  
Vol 3 (1) ◽  
pp. 50-56
Author(s):  
MT Mustafa
Keyword(s):  
Positive Impact ◽  
Class Ii ◽  
Class I ◽  
Occlusal Plane ◽  
Minimal Amount ◽  
Mandibular Angle ◽  
Deep Bite ◽  
Facial Height ◽  
The Subject ◽  
Division 2

Inter-arch elastics and reverse curve arch wire can be used successfully in the treatment of deep bite malocclusions and are two of the most common methods available for treating class II malocclusions . Careful diagnosis and treatment planning is primordial for choosing the right treatment modality which can vary from patient to patient. The subject treated in this study was a 14 years old female patient with a Class II division 2 Angle’s malocclusion having a skeletal deep bite of around 6 mm and an overjet of 1.5mm, deep curve of spee, coinciding upper and lower arch midlines with that of the facial midline. After analysis made, the case was treated without any extraction due to the fact that she was a low mandibular angle patient with minimal amount of crowding in both the arches and also a Combination Factor of 171.5° (greater than 155.9°) which represents the balance of both the vertical and horizontal dimensions. The Anterior Posterior Dysplasia Indicator value fell within the normal range indicating a Class I horizontal maxillo-mandibular relationship. The duration of the treatment was around 20 months. After achieving the goals of the treatment, cephalogram was taken and the pre and post treatment variables compared. The correction of the deep overbite condition was achieved successfully along with the correction of the molar relationship into a Class I malocclusion. U1-SN has increased by 50.0 and L1-NA increased by 4.50 together with a decrease in the inter-incisal angle by 8.50 contributing to a decrease in bite depth. The assessment of the cephalometric findings showed that the lower anterior facial height change was minimal but not insignificant partly due to the continued growth of the mandible which can be confirmed through the values of FMA which shows an increase in 20.0, Facial Height Index dropping from 0.89 to 0.88 and the TPFH:TAFH values decreasing by 0.8%. But this change was not enough to have a positive impact on the facial appearance of the subject. Change in the molar relationship was aided by the use of inter-arch elastics and the deep bite correction facilitated by the slight rotation of the occlusal plane caused by extrusion of lower first molar along with the flaring of the lower incisors induced through the use of the reverse curve arch wire. So it was confirmed that the combined use of inter arch elastics & reverse curve arch wire help to correct the class II division 2 malocclusion along with some improvement for increasing the lower anterior facial height.

scholarly journals Self-esteem in adolescents with Angle Class I, II and III malocclusion in a Peruvian sample

2016 ◽  
Vol 21 (2) ◽  
pp. 59-64 ◽  
Author(s):  
Karla Florián-Vargas ◽  
Marcos J. Carruitero Honores ◽  
Eduardo Bernabé ◽  
Carlos Flores-Mir
Keyword(s):  
Self Esteem ◽  
Class Ii ◽  
Cross Sectional Study ◽  
Analysis Of Covariance ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Cross Sectional ◽  
Angle Class ◽  
The Impact ◽  
Division 2

ABSTRACT Objective: To compare self-esteem scores in 12 to 16-year-old adolescents with different Angle malocclusion types in a Peruvian sample. Material and Methods: A cross-sectional study was conducted in a sample of 276 adolescents (159, 52 and 65 with Angle Class I, II and III malocclusions, respectively) from Trujillo, Peru. Participants were asked to complete the Rosenberg Self-Esteem Scale (RSES) and were also clinically examined, so as to have Angle malocclusion classification determined. Analysis of covariance (ANCOVA) was used to compare RSES scores among adolescents with Class I, II and III malocclusions, with participants' demographic factors being controlled. Results: Mean RSES scores for adolescents with Class I, II and III malocclusions were 20.47 ± 3.96, 21.96 ± 3.27 and 21.26 ± 4.81, respectively. The ANCOVA test showed that adolescents with Class II malocclusion had a significantly higher RSES score than those with Class I malocclusion, but there were no differences between other malocclusion groups. Supplemental analysis suggested that only those with Class II, Division 2 malocclusion might have greater self-esteem when compared to adolescents with Class I malocclusion. Conclusion: This study shows that, in general, self-esteem did not vary according to adolescents' malocclusion in the sample studied. Surprisingly, only adolescents with Class II malocclusion, particularly Class II, Division 2, reported better self-esteem than those with Class I malocclusion. A more detailed analysis assessing the impact of anterior occlusal features should be conducted.

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