scholarly journals Analysis of Patients with Skeletal Malocclusion Undergoing Orthognathic Surgery Along with Fixed Orthodontics in a Dental Hospital Setup

2020 ◽  
Vol 11 (SPL3) ◽  
pp. 385-391
Author(s):  
Pooja Umaiyal M ◽  
Saravana Dinesh S P ◽  
Jaiganesh Ramamurthy
Keyword(s):  
Orthognathic Surgery ◽  
Class Ii ◽  
P Value ◽  
Class Iii ◽  
Chi Square ◽  
Fixed Appliance ◽  
Skeletal Malocclusion ◽  
Division 1 ◽  
Dental Hospital ◽  
Chi Square Test

Lately, people have become more conscious about their physical appearance. Orthodontic treatment has no doubt in providing a significant effect on facial aesthetics. Commonly treated dental and skeletal malocclusion includes class II and class III, skeletal malocclusions might need orthodontic fixed appliance, orthognathic surgery or a combination of both for its correction. The aim of this study is to analyse the prevalence percentage of patients with skeletal malocclusion undergoing orthognathic surgery along with fixed orthodontics. We reviewed and analysed the data of 86000 patients who visited a dental institutional hospital between June 2019 and March 2020. A total of 60 patients were chosen to be included in this retrospective study. They were diagnosed with either class II or class III malocclusions. Socio-demographic and clinical data of all the 60 patients were collected, such as age, gender, type of skeletal malocclusion, treatment suggested and treatment undergone were retrieved from the patient records provided by Saveetha Dental College and Hospitals. This data was tabulated in excel and analysed using SPSS software. Chi-Square test was performed, and the p-value was determined to evaluate the significance of the variables. Among the patients, 51.7% were males with the peak prevalence of reporting for skeletal malocclusion treatment at the age of 10-30 years (85%). Most predominant dental malocclusion being class II division 1 (38.3%) followed by class III(23.3%). Proclination (40%) and crowding (60%) were other common dental alignment issues in the maxillary and mandibular arches, respectively.

scholarly journals Relationship between skeletal malocclusion and dental anomalies in Nepalese population

2019 ◽  
Vol 9 (1) ◽  
pp. 15-18
Author(s):  
Bashu Dev Pant ◽  
Anjana Rajbhandari ◽  
Resina Pradhan ◽  
Manju Bajracharya
Keyword(s):  
Third Molar ◽  
Class Ii ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Class Iii ◽  
Dental Anomalies ◽  
Chi Square ◽  
Skeletal Class ◽  
Skeletal Malocclusion ◽  
Third Molar Agenesis

Introduction: Teeth eruption is important for the development of alveolar process which increases vertical height of the face and third molar is the last tooth to erupt in the oral cavity after birth. The aim of this study was to determine relationship between skeletal malocclusion and dental anomalies in Nepalese population. Materials & Method: A sample of 170 patients with agenesis of at least one third molar was divided into four groups according to the third-molar agenesis pattern. Panoramic radiographs, lateral cephalograph and cast models were used to determine the skeletal malocclusion and associated dental anomalies. The Pearson chi-square test was used for stastical analysis. Result: Among 170 patients more than half of the patients were female with the average age being 18.15 ± 3.64 years. Majority of the patients had Class I skeletal malocclusion followed by Class II and III but on group wise comparison of patients with different skeletal patterns Class I skeletal malocclusion had highest prevalence of dental anomalies followed by Class III and Class II malocclusion. Conclusion: Prevalence of third-molar agenesis was more in skeletal class I malocclusion followed by class II and III but skeletal Class I malocclusions had more dental anomalies followed by class III and class II malocclusion.

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 Assessment of first molars sagittal and rotational position in Class II, division 1 malocclusion

2013 ◽  
Vol 18 (6) ◽  
pp. 106-111 ◽  
Author(s):  
Paulo Estevão Scanavini ◽  
Renata Pilli Jóias ◽  
Maria Helena Ferreira Vasconcelos ◽  
Marco Antonio Scanavini ◽  
Luiz Renato Paranhos
Keyword(s):  
Class Ii ◽  
Chi Square ◽  
Mean Values ◽  
Significance Level ◽  
Significant Difference ◽  
Division 1 ◽  
Chi Square Test ◽  
Student’S T ◽  
The Right ◽  
Class Ii Division 1

OBJECTIVE: This study assessed the anterior-posterior positioning of the upper and lower first molars, and the degree of rotation of the upper first molars in individuals with Class II, division 1, malocclusion. METHODS: Asymmetry I, an accurate device, was used to assess sixty sets of dental casts from 27 females and 33 males, aged between 12 and 21 years old, with bilateral Class II, division 1. The sagittal position of the molars was determined by positioning the casts onto the device, considering the midpalatal suture as a symmetry reference, and then measuring the distance between the mesial marginal ridge of the most distal molar and the mesial marginal ridge of its counterpart. With regard to the degree of rotation of the upper molar, the distance between landmarks on the mesial marginal ridge was measured. Chi-square test with a 5% significance level was used to verify the variation in molars position. Student's t test at 5% significance was used for statistical analysis. RESULTS: A great number of lower molars mesially positioned was registered, and the comparison between the right and left sides also demonstrated a higher number of mesially positioned molars on the right side of both arches. The average rotation of the molars was found to be 0.76 mm and 0.93 mm for the right and left sides, respectively. CONCLUSION: No statistically significant difference was detected between the mean values of molars mesialization regardless of the side and arch. Molars rotation, measured in millimeters, represented ¼ of Class II.

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 Pattern of Malocclusion in Patients Seeking Orthodontic Treatment at Medical Colleges & Teaching Hospitals of Chitwan, Nepal

2018 ◽  
Vol 8 (2) ◽  
pp. 41-44
Author(s):  
Bashu Raj Pandey ◽  
Shailendra Kumar Singh ◽  
Rajan Singh ◽  
Rajeev Mishra ◽  
Srijana Mishra ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Class I ◽  
Teaching Hospitals ◽  
Class Iii ◽  
Chi Square ◽  
Deep Bite ◽  
Chi Square Test ◽  
Orthodontic Patients ◽  
Medical Colleges

Introduction: Various forms of malocclusion is most common dentofacial abnormality found in human population. People seek tteatment for such abnormalities based on the severity. The objective of this research is to evaluate Pattern of Malocclusion in Patients Seeking Orthodontic Treatment at Medical Colleges and Teaching Hospitals of Chitwan, Nepal. Materials & Method: Two hundred thirty nine pre-operative study casts of orthodontic patients aged from 12-50 years selected from 550 patient’s records of departments of orthodontics of Chitwan Medical Colleges and Colleges of Medical Sciences, Bharatpur of Chitwan. Standard protocol of Angle’s classification of malocclusion was used to classify malocclusion and its attributes were recorded. Pearson’s Chi square test was performed to justify the result. Result: The prevalence of malocclusion were 61.92% , 33.47% and 4.60% for Angle’s class I, Angle’s class II and Angle’s class III malocclusion respectively. Among various attributes of malocclusion, deep bite had highest frequency with 67.36% followed by overjet 58.99%, crowding 53.13% and spacing 35.98%, Anterior cross bite 11.71% reverse overjet 4.6%, posterior cross bite 1.2% and scissor bite 0.041%. Pearson Chi square test showed no relation among these attributes and sex and age at p < .05. Conclusion: Angle’s class I malocclusion is most prevalent followed by Angle’s class II and Angle’s class III.

Impact of functional orthodontic treatment on facial attractiveness of children with Class II division 1 malocclusion

2019 ◽  
Vol 42 (2) ◽  
pp. 144-150 ◽  
Author(s):  
Sergio Paduano ◽  
Roberto Rongo ◽  
Rosaria Bucci ◽  
Giuseppe Carvelli ◽  
Iacopo Cioffi
Keyword(s):  
Orthodontic Treatment ◽  
Facial Attractiveness ◽  
Class Ii ◽  
Upper Lip ◽  
Chi Square ◽  
Lower Lip ◽  
Division 1 ◽  
Chi Square Test ◽  
Functional Appliances ◽  
Class Ii Division 1

Summary Background/objectives Whether orthodontic treatment with functional appliances improves facial aesthetics is still under debate. This study aimed to determine whether functional orthodontic treatment improves the facial attractiveness of patients with Class II division 1 malocclusion. Materials/method Extraoral lateral photographs of 20 children with Class I (CLI, 11.7 ± 0.8 years), and before (T1) and after treatment (T2) photographs of patients with Class II division 1 (CLII T1 and CLII T2; mean age ± SD = 11.1 ± 0.6 years) treated with functional appliances, were transformed into black silhouettes. Three panels of examiners including 30 orthodontists (39.0 ± 10.1 years), 30 dentists (40.0 ± 9.7) and 30 laypersons (39.0 ± 9.2) evaluated the attractiveness of patients’ silhouettes using a 100-mm visual analogue scale, and the sagittal position of patients’ upper lip, lower lip, and chin using a 3-point Likert scale. Two-way ANOVA and a chi-square test were used to test differences among groups. Statistically significance was set as P  &lt;  0.05. Results The silhouettes of CLII T2 individuals were more attractive than those of the other groups (all Ps &lt; 0.001). The upper lip, lower lip, and the chin of these individuals were judged to be normally positioned in 69.5 per cent, 74.9 per cent, and 72.3 per cent of the assessments, respectively (all Ps &lt; 0.05). Limitations This study did not account for the psychological profile of the examiners, which may have affected the ratings. Conclusions/implications Orthodontic treatment with functional appliances is associated with a superior facial profile attractiveness. Functional treatment should be considered as a treatment option to improve the facial appearance of children with Class II division 1 malocclusion.

scholarly journals Frequency of Extractions in Various Skeletal Patterns in Orthodontic Nishtar Institute of Dentistry, Multan

2020 ◽  
Vol 10 (3) ◽  
pp. 27-30
Author(s):  
Ahsan Khalid ◽  
Zubair Hassan Awaisi ◽  
Muhammad Anas Sufian ◽  
Zainab Ahmed ◽  
Sameera Jamshed ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
P Value ◽  
Chi Square ◽  
Data Registration ◽  
Significant Difference ◽  
Skeletal Pattern ◽  
Extraction Pattern ◽  
Chi Square Test ◽  
The Difference

Introduction: When the 20th century started Orthodontics was first recognized as a science. The removal or extraction of teeth destroys the ideal esthetics and occlusion, which was the base of orthodontic treatment plans. Edward Hartley Angle and his followers were not supporters of extraction due to this reason. Extreme dental or maxillary protrusion leading to facial deformities could be corrected by dental extraction was supported by Calvin Case who was a strong opponent of the Angle., for mainly analyzing the frequency of use of orthodontic extractions after evaluating the changes in the use of extraction in past years. The frequency of extractions was examined in relation to gender and Angle’s malocclusion classification. Materials and Method: This is a retrospective observational study. It was conducted in Orthodontics Department of Nishtar Institute of Dentistry, from 2015 to 2020. In this study records from 1032 patients who reported to orthodontic department in Nishtar institute of dentistry Multan for fixed orthodontic treatment were taken. For data registration SPSS 20 (IBM Chicago Illinois) was used. Frequency of extractions with regards to gender, skeletal pattern and types of extraction pattern was determined. In order to assess the association among variables Chi square test was applied and a P value of less than 0.05 was considered as significant. Result: In respect of extraction group, 222 (41.3%) were males and 316 (58.7%) were female and whereas in nonextraction group, 83 (16.8%) were males and 411 (83.2%) were females. The difference was statistically significant (p<0.001). The frequency of extraction in reference to Angle’s classification was analyzed, and no significant difference was found (p=0.992). Frequency of extraction was highest in class-II division-I malocclusion, and the lowest frequency of orthodontic tooth extraction was seen in class-II division-II malocclusion. Conclusion: It can be concluded from the results of our study that females had higher frequency of extractions as compared to males. Similarly, class II malocclusion patients had highest frequency while lowest frequency was in Class I malocclusions.

scholarly journals Prevalence of malocclusion and occlusal traits of Malay adults (18-23 years) in Shah Alam, Malaysia

2020 ◽  
Vol 5 (2) ◽  
pp. 81-85
Author(s):  
Majda Elfseyie ◽  
◽  
Mohamed I. Abu Hassan ◽  
Nagham Mohammed Abdullah Al-Jaf ◽  
◽  
...  
Keyword(s):  
Total Sample ◽  
Class Ii ◽  
Epidemiological Studies ◽  
Class Iii ◽  
Public Health Services ◽  
Chi Square ◽  
Anterior Crowding ◽  
Normal Occlusion ◽  
Chi Square Test ◽  
Tongue Thrust

Background: The incidence of malocclusion varies among countries, ethnicities, races, and ages. The recognition of malocclusion incidence is an important role in planning public health services. Aims: To assess the occlusal features of Malaysian Malay adults aged 18-23 years. However, few epidemiological studies have been conducted in Malaysia and a little information is available on Malay malocclusion. Methods: A total sample of 191 subjects (73 males and 118 females) was examined to register the occlusal status by using Angle classification as normal occlusion, Class I, Class II/1, Class II/2 and Class III malocclusion. Other variables were recorded such as overbite, over-jet, crowding, spacing, midline diastema, crossbite, scissors bite, midline shifts, canine displacement, missing teeth, supernumerary teeth, traumatically fractured teeth, traumatic gingival contact, tongue thrust and lip coverage. Statistical analysis: Descriptive statistics were used for all measurements and the chi-square test was used for gender differences. Results: Class III was the most predominant with gender significant (P < 0.05). Class II/2 was the lowest incidence (1%). Overall, the anterior crowding was high (75.9%). There was a significant association between crossbite, scissors bite and genders (P < 0.05). The anterior crossbite was more commonly associated with Class III and the antero-posterior unilateral crossbite was found only in subjects with Class III. Conclusion: The incidence of Class III was higher in Malay; therefore, the orthodontic management of Class III would be more common in the clinic so that it is necessary to start a plan to promote the preventive and interceptive orthodontic treatment in Malay population.

scholarly journals Patterns of third-molar agenesis in an orthodontic patient population with different skeletal malocclusions

2011 ◽  
Vol 82 (1) ◽  
pp. 165-169 ◽  
Author(s):  
Mevlut Celikoglu ◽  
Hasan Kamak
Keyword(s):  
Patient Population ◽  
Third Molar ◽  
Class Iii ◽  
Missing Teeth ◽  
Chi Square ◽  
Skeletal Malocclusion ◽  
Third Molar Agenesis ◽  
Chi Square Test ◽  
Orthodontic Patients ◽  
The Relationship

Abstract Objective: To examine the relationship between third-molar agenesis and different skeletal malocclusion patterns. Materials and Methods: Pretreatment records of 1046 orthodontic patients (aged 13–17 years; mean age, 14.07 ± 1.27) were used. Third-molar agenesis was calculated with respect to genders, number of missing teeth, jaws, and skeletal malocclusion patterns. The Pearson chi-square test was performed to determine potential differences. Results: Among the 1046 subjects, 237 subjects were diagnosed with third-molar agenesis (22.7%) with no statistical gender difference (P &gt; .05). It was more common in the maxilla than in the mandible or in both jaws (P &lt; .01). The prevalence of patients with a third-molar agenesis was the most commonly found type (P &lt; .001). The prevalence of third-molar agenesis in those with a Class III malocclusion was significantly higher than in those with Class I or Class II (P &lt; .05). However, there was similar prevalence among the hyper-divergent (24.5%), normal (23.8%), and hypo-divergent (19.2%) groups (P &gt; .05). Conclusion: These results suggest that agenesis of the third molar does not depend on vertical patterns of the skeletal malocclusions, but does depend on sagittal skeletal malocclusions in this orthodontic patient population.

scholarly journals Prevalence of Malocclusion in Western Nepal

2015 ◽  
Vol 5 (2) ◽  
pp. 6-8 ◽  
Author(s):  
Prakash Baral
Keyword(s):  
Class Ii ◽  
Open Bite ◽  
Class I ◽  
Class Iii ◽  
Chi Square ◽  
Gender Dimorphism ◽  
Deep Bite ◽  
Gender Variation ◽  
Chi Square Test ◽  
Mandibular Teeth

Introduction: Malocclusion is the improper relationship of maxillary and mandibular teeth. The prevalence of malocclusion varies in different populations of the world.Objective: To study the prevalence of malocclusion in western part of Nepal and to evaluate the gender variation in occurrence of malocclusion.Materials & Method: A total of 1284 subjects were studied. Out of them 656 were male and 628 were female. Intra-oral examination was carried out to assess occlusal types of Class I, II, III according to Angle’s classification of malocclusion, and various occlusal characteristics like crowding, spacing, cross-bite, open-bite and deep bite were recorded. Gender variation in malocclusion characteristics were tested using chi-square test (p<0.05).Result: The present study showed that Class I occlusion type with malocclusion was more prevalent than Class II and Class III malocclusions. Class I was seen in 71.5% , Class II div 1 in 20.7%, Class II div 2 in 3.9% cases and Class III in 4.1% cases. Among the occlusal characteristics; crowding (61.3%), deep bite (29.5%) and spacing (10.5%) were most prevalent.Conclusion: Class I malocclusion was most prevalent type of malocclusion in western Nepalese subjects. There was no significant gender dimorphism between male and female in prevalence of various malocclusion characteristics.

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