scholarly journals Overjet in Adolescents with Class II Division 1 Malocclusion- A Retrospective Cross Sectional Study

2021 ◽  
pp. 4049-4053
Author(s):  
Harish Babu ◽  
Keyword(s):  
Class Ii ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Division 1 ◽  
Class Ii Division 1

scholarly journals Prevalence of dental malocclusions in 12-year-old schoolchildren from Cuenca, Ecuador.

2018 ◽  
Vol 5 (1) ◽  
pp. 7-10
Author(s):  
Santiago Coello-Vásquez ◽  
Alberto Alvarado-Cordero ◽  
María Delgado-López ◽  
Luisa Salinas-Abarca
Keyword(s):  
Class Ii ◽  
Cross Sectional Study ◽  
High Rate ◽  
Class Iii ◽  
Cross Sectional ◽  
Public And Private ◽  
Significant Difference ◽  
Division 1 ◽  
Division 2 ◽  
Class Ii Division 1

The aim of this paper was to determine the prevalence of malocclusions in 12-year-old schoolchildren from Cuenca, Ecuador. A cross-sectional study was carried out, including a clinical examination of 181 schoolchildren aged 12 years, who were randomly selected from the schoolchildren population. We assessed the presence of malocclusions using the Angles classification. The analysis was performed in the program EpiInfo 7.2. The majority of the patients presented malocclusions (91.7%). There is no significant difference between public and private schools and the male sex was slightly more affected. There was a predominance of the Class II division 1 (30.4%), followed by Class III (25.4%), and Class I (24.9%), with the lowest prevalence reported for Class II division 2 (11%). A high rate of malocclusion was found in in 12-year-old schoolchildren from Cuenca, Ecuador, in both males and females. The dominant malocclusion in this study was Class II division 1.

scholarly journals Upper Airway Dimensions in Class II Malocclusion

2007 ◽  
Vol 77 (6) ◽  
pp. 1046-1053 ◽  
Author(s):  
Mirja Kirjavainen ◽  
Turkka Kirjavainen
Keyword(s):  
Treatment Time ◽  
Upper Airway ◽  
Class Ii ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Cross Sectional ◽  
Lateral Cephalograms ◽  
Division 1 ◽  
Upper Airway Structure ◽  
Class Ii Division 1

Abstract Objective: To study the effects of cervical headgear treatment of Class II division 1 malocclusion on upper airway structures in children. Materials and Methods: Forty children aged 9.1 (7.2–11.5) years with Class II division 1 malocclusion were treated using a cervical headgear as the only treatment appliance. The headgear consisted of a long outer bow bent 15° upward and a large inner bow expanded 10 mm larger than the intermolar distance. Lateral cephalograms were taken before and after the treatment. Upper airway structures were estimated from the cephalograms. The results were compared to cross-sectional data of 80 age-matched controls with a Class I molar relationship. Results: A Class I molar relationship was achieved in all treated children. The mean treatment time was 1.6 (0.3–3.1) years. The Class II malocclusion was accompanied by a similar or wider nasopharyngeal space than in the controls but narrower oro- and hypopharyngeal spaces. The retropalatal area was widened by the treatment (P < .05), whereas the rest of the oropharynx and hypopharynx remained narrower than in the controls. Before the treatment, the mandibular plane was in a more horizontal position than in the controls, but during the treatment, it rotated to a position similar to that of the controls. Conclusion: Class II division 1 malocclusion is associated with a narrower upper airway structure even without retrognathia. Headgear treatment is associated with an increase in the retropalatal airway space.

scholarly journals Assessment of arch width changes in Class I and Class II Division 1 patients treated with fixed orthodontics

2021 ◽  
Vol 14 (1) ◽  
pp. 3-7
Author(s):  
Umesh Parajuli ◽  
Manish Bajracharya ◽  
Manju Pandey ◽  
Ima Gurung ◽  
Sapna Laxmi Tuladhar
Keyword(s):  
Study Groups ◽  
Class Ii ◽  
Cross Sectional Study ◽  
T Test ◽  
Post Treatment ◽  
Class I ◽  
Sectional Study ◽  
Cross Sectional ◽  
Arch Width ◽  
Treatment Changes

Background: The orthodontic treatment should aim to maintain the inter-canine and inter-molar width to that of the pre-treatment values. The study was conducted with objective to evaluate arch width changes in Class I and Class II patients treated with fixed orthodontics. Methods: This was a hospital-based cross-sectional study with two study groups. The first group included patients with Class I malocclusion, treated with four first premolar extractions and the second group included patients with Class II Div 1 malocclusion, treated with upper two first premolar extractions. The inter-canine and inter-molar width of the pre and post-treatment study model were measured. To compare the changes observed amongst two groups, independent samples t-test was performed. A paired sample t-test was used to evaluate the treatment changes within each group. Results: There was significant increase in inter-canine width in both maxillary and mandibular arches in both the groups. In Class I extraction group there was significant decrease in the inter-molar width in both maxillary and mandibular arches. The Class II Div1 maxillary extraction group also showed significant increase in inter-canine width in both maxillary and mandibular arches. In the same group there was decrease in post treatment Methods: This was a hospital-based cross-sectional study with two study groups. The first group included patients with Class I malocclusion, treated with four first premolar extractions and the second group included patients with Class II Div 1 malocclusion, treated with upper two first premolar extractions. The inter-canine and inter-molar width of the pre and post-treatment study model were measured. To compare the changes observed amongst two groups, independent samples t-test was performed.  A paired sample t-test was used to evaluate the treatment changes within each group. Results: There was significant increase in inter-canine width in both maxillary and mandibular arches in both the groups. In Class I extraction group there was significant decrease in the inter-molar width in both maxillary and mandibular arches. The Class II Div1 maxillary extraction group also showed significant increase in inter-canine width in both maxillary and mandibular arches. In the same group there was decrease in post-treatment inter-molar width in both arches with significant decrease in the maxillary inter-molar width. Conclusion: There was increase in inter-canine width in both Class I extraction group and Class II Div 1 maxillary extraction group with decrease in inter-molar width in both the groups.  

Primary Canine and Molar Relationships in Centric Occlusion in Three to Six Year-Old Turkish Children: A Cross-Sectional Study

2006 ◽  
Vol 7 (3) ◽  
pp. 59-66 ◽  
Author(s):  
Yucel Yilmaz ◽  
Taşkin Gürbüz ◽  
Sera Şimşek ◽  
Anya Dalmiş
Keyword(s):  
Class Ii ◽  
Cross Sectional Study ◽  
Class I ◽  
Class Iii ◽  
Sectional Study ◽  
Cross Sectional ◽  
Turkish Children ◽  
Significant Difference ◽  
Centric Occlusion ◽  
Primary Canine

Abstract This cross-sectional study aimed to evaluate the primary canine and the primary molar relationship in 205 (90 girls and 115 boys) three to six year-old Turkish children with the primary dentition in centric occlusion according to gender and age. In terms of the molar relationship, Class I was represented by 88.29% of all children who agreed to participate in the study, followed by Class II (7.31%), and Class III (4.4%). In terms of the canine relationship, Class I was represented by 87.8% of the sample, followed by Class II (7.8%), and Class III (4.4%). A statistically significant difference was found between age and both the canine and molar relationships (p<0.005), and a positive correlation was confirmed among them. However, the difference and correlation between the gender and the canine and molar relationships were not significant. Citation Yilmaz Y, Gürbüz T, Şimşek S, Dalmiş A. Primary Canine and Molar Relationships in Centric Occlusion in Three to Six Year-Old Turkish Children: A Cross-Sectional Study. J Contemp Dent Pract 2006 July;(7)3:059-066.

scholarly journals COLLUM’S ANGLE AND CROWN ROOT ANGLE OF MAXILLARY INCISORS IN DIFFERENT MALOCCLUSIONS

2021 ◽  
Vol 71 (1) ◽  
pp. 238-42
Author(s):  
Saadia Panezai ◽  
Nasrullah Mengal ◽  
Sadia Nisar Ahmed
Keyword(s):  
Class Ii ◽  
T Test ◽  
Process Data ◽  
Cross Sectional ◽  
Root Angle ◽  
Lateral Cephalograms ◽  
Division 1 ◽  
Collum Angle ◽  
Division 2 ◽  
Class Ii Division 1

Objective: To determine Collum angle and crown to root angle of maxillary central incisor in different skeletalmalocclusion. Study Design: Comparative cross sectional study. Place and Duration of Study: Orthondontics department, Bolan Medical College, Civil Sandman Hospital,Quetta, from Jun to Dec 2018. Methodology: Data sample consisted of 140 lateral cephalograms. Sample consisted of 74 female cephalograms and 66 male cephalograms. The mean age of sampled subjects ranged between 21.62 ± 5.96 years. The Colum angle of the maxillary central incisors in each group was measured. SPSS version 21 was used to enter and process data. Comparison between Class II division 1 and division 2 collum angles was made by applying student t-test. Results: The average value for Collum angle in class II division 1 sample was 4.38 ± 3.08 with minimum being 0and maximum 15 degree. The average values for Class II division 2 was 10.52 ± 4.37 with minimum 30 and amaximum 23 degree. Conclusion: Maxillary central incisors in all malocclusions had significantly different mean Collum angles fromzero. Paired sample t-test comparison showed that the Collum angle for maxillary central was much higher inClass II division 2.

scholarly journals The Effect of the Different Service Lives of Class II Amalgam Restorations on Periodontal Health among Type 2 Diabetes Patients

2021 ◽  
Vol 7 (6) ◽  
Author(s):  
Albakry M
Keyword(s):  
Type 2 Diabetes ◽  
Class Ii ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Periodontal Health ◽  
Cross Sectional ◽  
Amalgam Restorations ◽  
Diabetes Patients

Background: This comparative cross-sectional study evaluated the effect of the different service lives of class II amalgam restorations on periodontal health among type 2 diabetes patients.

scholarly journals Knowledge regarding Heart Failure: A Reflection on Current Disease Knowledge State among Iranian Patients with Heart Failure

2019 ◽  
Vol 5 (4) ◽  
pp. 155-158
Author(s):  
Mahin Nomali ◽  
◽  
Kian Alipasandi ◽  
Ramin Mohammadrezaei ◽  
◽  
...  
Keyword(s):  
Heart Failure ◽  
Function Class ◽  
Class Ii ◽  
Cross Sectional Study ◽  
Continuous Variables ◽  
Sectional Study ◽  
Cross Sectional ◽  
Low Level ◽  
Symptom Recognition ◽  
Iranian Patients

Background: Heart failure (HF) is a serious problem with an increasing prevalence globally. Low level of HF knowledge may cause low compliance and low quality of life and, poor self-care. On the other hand, assessing the level of HF knowledge is necessary in order to apply educational programs. Aims and objectives: the aim was to determine knowledge regarding HF among Iranian patients with HF. Study Design: This was a cross sectional study. Setting: We conducted this study at the HF clinic of Tehran Heart Center (THC) affiliated with Tehran University of Medical Sciences (TUMS, Tehran, Iran). Materials and Methods: In this cross-sectional study, 190 patients older than 18 years old, with confirmed diagnosis of HF for at least 3 months by an HF specialist, NYHA function class II to IV and an ability of reading and writing Farsi language were included during June 2017 and January 2018 by consecutive sampling. Data were gathered in a short form, including demographic and clinical variables. Knowledge regarding HF was measured by the Dutch HF knowledge scale (Cronbach’s alpha=0.62) with 15- multiple choice item. The score range varied between 0 (no knowledge) and 15 (optimum knowledge). Scores were reported totally and in 3 areas of knowledge. Scores higher than the median was considered as higher knowledge. Statistics: The SPSS software version 16 was used to describe data. Normality of continuous variables was checked by the Kolmogorov-Smirnoff test. Frequency and partial frequency distribution were used to describe Categorical variables. While, we used mean, median, standard deviation, and IQR for describing continuous variables. Results: From June 2017 to January 2018, 160/190 patients with median age (IQR) of 59 (16) years old participated in the study (response rate of 84.2%). 67.5% of study patients were male (83.5%). 87.5% of then were married. The majority of patients were with NYHA function class II (60.6%), and with an etiology of ischemic heart disease (65.0%). The median and IQR of total, general, HF treatment, and symptoms/ symptom recognition knowledge were 8 (7-10), 12 (9-14), 2 (1.25-3), and 4 (3-5), respectively. Low level of total, general, HF treatment, and symptoms and symptom recognition knowledge among Iranian patients with HF were 55%, 60%, 58.8%, and 71.9%, respectively. Conclusion: Patients with HF had low levels of total, general, HF treatment, and symptoms/symptom recognition knowledge. Thus, there is an essential need to be improved by an appropriate intervention, especially on knowledge of symptoms /symptom recognition.

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