scholarly journals Comparative Evaluation of Discomfort, Expectations and Functional Experiences during Treatment of Class II Malocclusion with Forsus Fixed Functional Appliance and Sharma’s Class II Corrector - A Questionnaire Based Survey

2021 ◽  
Vol 10 (8) ◽  
pp. 474-478
Author(s):  
Shriya Prakash Murarka ◽  
Sunita Shrivastav ◽  
Ranjit Kamble ◽  
Hamza Dargahwala ◽  
Prutha Khakhar ◽  
...  
Keyword(s):  
Class Ii ◽  
Patient Acceptance ◽  
Class Ii Malocclusion ◽  
Functional Appliance ◽  
Chi Square ◽  
Fixed Functional Appliance ◽  
Chi Square Test ◽  
The Difference ◽  
Group 2 ◽  
Group 1

BACKGROUND The Forsus fatigue resistant device (FFRD) appliance is known to correct Class II malocclusion. The disadvantage of it are labial flaring of lower incisors, distalisation and extrusion of maxillary molars, difficulty in procuring the appliances in remote areas and cost. No research has documented the comparison of patient’s experience with FFRD and Sharma’s Class II corrector appliance. Therefore, a questionnaire survey was conducted. METHODS 40 patients having Class II Division 1 malocclusion were included and were divided into two groups- FFRD appliance (group 1, 20 patients) and Sharma’s Class II corrector (group 2, 20 patients). A questionnaire was framed that consisted of 15 questions. Descriptive and analytical statistics was done using SPSS software. The difference in proportions was calculated by chi-square test. The level of significance was set at P < 0.05. RESULTS 30 % of cases in group 2 indicated that the Sharma’s Class II corrector looks good (Q1) as compared to 15 % in group 1. (P = 0.630) 5 % indicated it was not aesthetic in group 2 as compared to 10 % in group 1. 30 % of cases in group 1 indicated that there were problems associated with speech as compared to 0 % in group 2. (P < 0.05). Values were statistically significant. CONCLUSIONS Sharma’s Class II corrector has similar patient acceptance as compared to FFRD appliance with the additional benefit of cost effectiveness. Hence, this can be considered as a better option in treating Class II malocclusion with fixed therapy. KEY WORDS FFRD, Fixed Function Appliance, Economic Orthodontics, Growth Modification, Sharma’s Class II Corrector

scholarly journals Comparative cephalometric study of Class II malocclusion treatment with Pendulum and Jones jig appliances followed by fixed corrective orthodontics

2013 ◽  
Vol 18 (6) ◽  
pp. 58-64 ◽  
Author(s):  
Mayara Paim Patel ◽  
José Fernando Castanha Henriques ◽  
Renato Rodrigues de Almeida ◽  
Arnaldo Pinzan ◽  
Guilherme Janson ◽  
...  
Keyword(s):  
Class Ii ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Chi Square ◽  
Chi Square Test ◽  
Young Subjects ◽  
Group 2 ◽  
And Gender ◽  
The One ◽  
Cephalometric Study

OBJECTIVE: The purpose of this study was to cephalometrically compare the skeletal and dentoalveolar effects in the treatment of Class II malocclusion with Pendulum and Jones jig appliances, followed by fixed corrective orthodontics, and to compare such effects to a control group. METHODS: The sample was divided into three groups. Group 1: 18 patients treated with Pendulum, Group 2: 25 patients treated with Jones jig, and Group 3: 19 young subjects with untreated Class II malocclusions and initial mean age of 12.88 years. The chi-square test was applied to assess severity and gender distribution. Groups 1 and 2 were compared to the control group by means of the one-way ANOVA and Tukey tests in order to differentiate treatment changes from those occurred by craniofacial growth. RESULTS: There were no significant changes among the three groups with regard to the components of the maxilla and the mandible, maxillomandibular relationship, cephalometric and tegumental pattern. Buccal tipping of mandibular incisors was significantly greater in the experimental groups and increased mesial angulation of the maxillary second molars was found in the Jones jig group. In the experimental groups, dental relationship, overbite and overjet were corrected. CONCLUSION: It can be stated that the distalization achieved its purpose of correcting the Class II.

scholarly journals Do Camels (Camelus dromedarius) Need Shaded Areas? A Case Study of the Camel Market in Doha

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 480
Author(s):  
Martina Zappaterra ◽  
Laura Menchetti ◽  
Leonardo Nanni Costa ◽  
Barbara Padalino
Keyword(s):  
Ad Hoc ◽  
The Sun ◽  
Chi Square ◽  
Chi Square Test ◽  
Variable Space ◽  
Group 2 ◽  
Sun And Shade ◽  
Poor Welfare ◽  
Group 1

This study aimed at documenting whether dromedary camels have a preference for shade and how their behavior would change depending on the presence of shade and variable space allowance. A total of 421 animals kept in 76 pens (66 with shelter (Group 1), and 10 without shelter (Group 2)) at the camel market in Doha (Qatar) were recorded for 1 min around 11:00 a.m. when the temperature was above 40 °C. The number of animals in the sun and shade and their behaviors were analyzed using an ad libitum sampling method and an ad hoc ethogram. The results of a chi-square test indicated that camels in Group 1 had a clear preference for shade (p < 0.001). The majority of Group 1 camels were indeed observed in the shade (312/421; 74.11%). These camels spent more time in recumbency and ruminating, while standing, walking, and self-grooming were more commonly expressed by the camels in the sun (p < 0.001). Moreover, locomotory stereotypic behaviors (i.e., pacing) increased as space allowance decreased (p = 0.002). Based on the findings of this pilot study, camels demonstrated a preference for shade; shade seemed to promote positive welfare, while overcrowding seemed to trigger stereotypy and poor welfare. Overall, our preliminary results are novel and provide evidence that shaded areas are of paramount importance for camel welfare. Further research, involving designed studies at multiple locations is needed to confirm these results.

scholarly journals Comparative Study on the Efficiency of Intermaxillary Elastic Polymers used in the Treatment of Skeletal Class II Malocclusions in Growing Patients

2019 ◽  
Vol 56 (2) ◽  
pp. 341-345 ◽  
Author(s):  
Luminita Ligia Vaida ◽  
Raluca Dima ◽  
Emilia Albinita Cuc ◽  
Bianca Maria Negrutiu ◽  
Abel Emanuel Moca ◽  
...  
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Therapeutic Approaches ◽  
Mandibular Growth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Orthodontic Patients ◽  
Group 2 ◽  
Class Ii Elastics ◽  
Group 1

The aim of this study was to evaluate the efficiency in using intermaxillary elastics to stimulate mandibular growth and advancement in orthodontic patients diagnosed with skeletal Class II malocclusion as well as to compare the use of these Class II elastics in two different therapeutic approaches. The sample consisted of 60 orthodontic patients aged 10-15 years, 34 girls and 26 boys. The sample was divided into two equal groups (each consisting of 30 patients). Patients belonging to the first group (Group 1) were subjected to 1/4�� - 6.0 oz elastics and were advised to change the elastic every 24 hours. Patients belonging to the second group (Group 2) were subjected to 1/4�- 4.5 oz elastics but with a recommendation to change the elastics every 12 hours. In order to evaluate the effectiveness of these two types of Class II elastics on mandibular growth and advancement, the value of the SNB angle at the beginning of the treatment (T1) was compared with the value of the SNB angle after 5 months of wearing intermaxillary elastics (T2). All patients showed statistically significant increased values of the SNB angle during the orthodontic treatment (p[0.001). Patients in Group 2 showed a significantly higher statistical increase (p[0.05) than patients in Group 1.

scholarly journals Relation between Angle Class II malocclusion and deleterious oral habits

2012 ◽  
Vol 17 (6) ◽  
pp. 111-117
Author(s):  
José Tarcísio Lima Ferreira ◽  
Maria do Rosário Ferreira Lima ◽  
Luciana Zappeloni Pizzolato
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Class Iii ◽  
Chi Square ◽  
Significance Level ◽  
Oral Habits ◽  
Angle Class Ii ◽  
Stomatognathic System ◽  
Chi Square Test ◽  
History Of

INTRODUCTION: Oral habits may interfere on the growth and development of the stomatognathic system and orofacial myofunctional conditions, producing changes in the position of teeth in their dental arches. OBJECTIVE: The purpose of this study was to verify the presence of deleterious oral habits in individuals with malocclusion and see if there is a predominance of Class II malocclusion in these individuals. METHODS: The records of 140 patients treated at the Clinic of Preventive Orthodontics FORP-USP who had already completed treatment were randomly selected and analyzed. Their ages ranged from 6 to 10 years and 11 months. Associations were made between the presence or absence of deleterious oral habits, type and number of habits found in each individual and the type of malocclusion according to Angle classification. The statistical analysis used was the Chi-square test with a significance level of 5%. History of deleterious oral habits was found in 67.1% of individuals. RESULTS: The Class I malocclusion was most frequent (82.9%), followed by Class II malocclusion (12.1%) and Class III (5%). CONCLUSION: There was a predominance of Class II malocclusion in individuals with a history of deleterious oral habits.

scholarly journals Maxillary anterior alignment stability in Class I and Class II malocclusions treated with or without extraction

2015 ◽  
Vol 86 (1) ◽  
pp. 3-9 ◽  
Author(s):  
Willian Juarez Granucci Guirro ◽  
Karina Maria Salvatore Freitas ◽  
Guilherme Janson ◽  
Marcos Roberto de Freitas ◽  
Camila Leite Quaglio
Keyword(s):  
Class Ii ◽  
Class I ◽  
Maxillary Incisor ◽  
Class Ii Malocclusion ◽  
Group 4 ◽  
Posttreatment Period ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

ABSTRACT Objective:  To compare the postretention stability of maxillary incisors alignment in subjects with Class I and II malocclusion treated with or without extractions. Materials and Methods:  The sample comprised 103 subjects with initial maxillary anterior irregularity greater than 3 mm and was divided into four groups: group 1 comprised 19 patients with Class I malocclusion treated with nonextraction (mean initial age = 13.06 years); group 2 comprised 19 patients with Class II malocclusion treated with nonextraction (mean initial age = 12.54 years); group 3 comprised 30 patients with Class I malocclusion treated with extractions (mean initial age = 13.16 years); group 4 comprised 35 patients with Class II malocclusion treated with extractions (mean initial age = 12.99 years). Dental casts were obtained at three different stages: pretreatment (T1), posttreatment (T2), and long-term posttreatment (T3). Maxillary incisor irregularity and arch dimensions were evaluated. Intergroup comparisons were performed by one-way analysis of variance followed by Tukey tests. Results:  In the long-term posttreatment period, relapse of maxillary crowding and arch dimensions was similar in all groups. Conclusion:  Changes in maxillary anterior alignment in Class I and Class II malocclusions treated with nonextractions and with extractions were similar in the long-term posttreatment period.

scholarly journals The fetus gender value in the structure of obstetric pathology in pregnant women with gestational diabetes mellitus

2021 ◽  
Vol 12 (4) ◽  
pp. 20-26
Author(s):  
A. D. Fabrikant ◽  
T. I. Botasheva ◽  
A. N. Rymashevsky ◽  
Yu. A. Petrov ◽  
N. V. Palieva ◽  
...  
Keyword(s):  
Gestational Diabetes ◽  
Pregnant Women ◽  
Uterine Cavity ◽  
Obstetric Complications ◽  
Chi Square ◽  
Pregnancy And Childbirth ◽  
Chi Square Test ◽  
Male Sex ◽  
Group 2 ◽  
Group 1

Objective: To study the obstetric pathology and delivery outcomes in pregnant women with gestational diabetes depending on the sex of the fetus.Materials and Methods: A retrospective analysis of 2014 histories of pregnancy and childbirth of women with gestational diabetes (GD) over the period of 2018-2021, was carried out. Two groups were formed based on the sex of the fetus: Group 1 (1012 pregnant women) with male fetuses and Group 2 (1002 pregnant women) with female fetuses. For statistical analysis, the proportions (%) were compared using the Pearson’s χ2 (chi-square) test.Results: It was proved that the male sex of the fetus is a risk factor for the GD and concomitant obstetric complications (placental insufficiency, risk of preterm birth, fetal macrosomia). The prevalence of hypotonic bleeding, defects of the placenta, and placenta increta, and related cases of manual control of the uterine cavity and uterus extirpation in mothers of boys with GD was established. Also, in patients of this group, birth injuries consisting in a rupture of the posterior labial commissure were significantly more often registered as a result of childbirth with a large fetus, while cases of cervical rupture prevailed in women with female fetuses.Conclusions: The revealed dependence of the nature of obstetric complications and the course of labor on the sex of the fetus in pregnant women with GD warrant developing a monitoring system that takes into account the gender of the fetus.

scholarly journals CLOSED TIBIAL FRACTURES

2018 ◽  
Vol 25 (11) ◽  
pp. 1643-1648
Author(s):  
Hamid Saeed ◽  
Muhammad Zia Ur Rehman ◽  
Samee Javed Bhatti ◽  
Aamir Furqan
Keyword(s):  
Dynamic Compression ◽  
Categorical Variables ◽  
P Value ◽  
Chi Square ◽  
P Values ◽  
Chi Square Test ◽  
Group 2 ◽  
Compression Plating ◽  
Dynamic Compression Plating ◽  
Group 1

Objectives: The objective is to compare the radiological outcome of closedinterlock intramedullary nailing versus dynamic compression plating in closed tibial fracture.Study Design: Randomized controlled trials. Setting: Department of orthopedics NishtarHospital Multan. Period: 9th July 2016 to March 2017. Methodology: There were 302 patientsdivided in two equal groups of 151. Permission was taken from the ethical committee of NishtarHospital. The 302 patients in age group 20-50 years of both genders meeting the inclusionand exclusion criteria attending the outpatient clinic or admitted to the orthopedics departmentthrough emergency were included in the study. All the data entered and analyzed usingcomputer software SPSS version 10. For quantitative variables like age and duration of fracturemean and standard deviation was calculated. For categorical variables like gender, malunionand infection frequency and percentage were calculated. Chi-square test was applied tocompare the malunion and infection in both groups. A p value 0.05 was considered statisticallysignificant. Results: The 100% (n=302) patients were divided into 2 groups equally, 151 ineach, i.e. intramedullary nail (group 1) and dynamic compression plating (group 2). The mainoutcome variables of this study were the malunion and infection. It was observed that malunionpresented as 57% (n=86) and 70.9% (n=107) in group 1 and group 2 respectively. It was alsoobserved that infection presented as 23.2% (n=35) and 37.1% (n=56) in group 1 and group 2respectively. After applying chi-square test, it was noted that malunion associated with groupshaving p-value 0.012. But it was not associated with gender, stratified age and duration offracture having p-values 0.497, 0.800 and 0.218 respectively. Similarly, after applying chi-squaretest, it was noted that infection associated with gender and groups having p-values 0.007 and0.008 respectively. But it was not associated with stratified age and duration of fracture havingp-values 0.565 and 0.344 respectively. Conclusion: Closed interlock intramedullary nailinghas malunion and infection rates less than dynamic compression plating. So closed interlockintramedullary nailing is preferred method of closed tibia diaphyseal fracture treatment.

scholarly journals Runx2 rs59983488 polymorphism in class II malocclusion in the Indonesian subpopulation

2021 ◽  
Vol 54 (4) ◽  
pp. 216
Author(s):  
Fadli Jazaldi ◽  
Benny M. Soegiharto ◽  
Astrid Dinda Hutabarat ◽  
Noertami Soedarsono ◽  
Elza Ibrahim Auerkari
Keyword(s):  
Regulatory Gene ◽  
Class Ii ◽  
Class I ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Chi Square ◽  
Equal Distribution ◽  
Frequency Distributions ◽  
Skeletal Malocclusion ◽  
Chi Square Test

Background: Class II malocclusion is one of the main orthodontic issues for patients in seeking treatment. The prevalence of class II malocclusion varies in different populations. Variation in skeletal profile is mainly controlled internally by a regulatory gene. Runt-related transcription factor-2 (Runx2) plays a role in osteoblast differentiation and is highly expressed during development. Purpose: This study aimed to evaluate the relation of regulatory gene variation in the Runx2 promoter with class II malocclusion. Methods: DNA samples were acquired from 95 orthodontic patients in Jakarta, Indonesia, who were divided into two groups: class I skeletal malocclusion (control group) and class II malocclusion. A single nucleotide polymorphism was investigated using the polymerase chain reaction and restriction fragment length polymorphism techniques. The distribution of alleles was assessed using the Hardy-Weinberg test. The relationship between polymorphism and skeletal variation was assessed with the Chi-Square test and logistic regression. Results: The frequency distributions of genotypes and alleles were tested for Hardy-Weinberg equilibrium and found to be slightly deviated. There was an equal distribution of G and T alleles throughout class II and class I skeletal malocclusions and the Chi-Square test showed that this relationship was not significant (p=0.5). Conclusion: Runx2 rs59983488 polymorphism was found in the Indonesian subpopulation; however, an association between Runx2 rs59983488 polymorphism and class II skeletal malocclusion was not found.

scholarly journals Assessment of Efficacy of Novel Method of Quantifying and Grading Class II Malocclusion in Vidarbha Population

2021 ◽  
pp. 230-234
Author(s):  
Niraj Nitin Tikar ◽  
Amit Reche ◽  
Vikrant Jadhav ◽  
Priyanka Paul Madhu ◽  
Kumar Gaurav Chhabra ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Class Ii ◽  
Patient Comfort ◽  
Class Ii Malocclusion ◽  
Proper Treatment ◽  
Chi Square ◽  
Chi Square Test ◽  
Proper Diagnosis ◽  
Dentofacial Orthopedics ◽  
Relationship Of

Background: It is important to quantify class II malocclusion for proper diagnosis of the case and adjusted treatment will aid in successful correction of malocclusion. Hence, the study will aid for proper treatment planning by classifying class II malocclusion established on the amount of overjet, overbite, distance and relation of maxillary and mandibular first molar and the relationship of canine and molar. Objectives: To grade Class II malocclusion in form of overjet and overbite. Materials and Methods: Patients visiting Department of Orthodontics and Dentofacial Orthopedics, Sharad Pawar Dental College, Wardha, having class II malocclusion will be chosen. The chi square test, student's paired and unpaired t test, and descriptive and inferential statistics will be used in the statistical analysis. Expected Results: The outcome after conduction of the study is expected to have more patients with Type 1 overjet and Type B overbite kind of Class II malocclusion. Conclusion: The establishment of this new classification will aid in concise analysis and proper treatment planning of Class II malocclusion thereby enhancing the esthetics and functional stability for the patient comfort.

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