scholarly journals Comparison of condylar position in normal occlusion, Class II Division 1, Class II Division 2 and Class III malocclusions using CBCT imaging

2021 ◽  
pp. e1216-e1226
Author(s):  
P. Rivero-Millán ◽  
J. Barrera-Mora ◽  
E. Espinar-Escalona ◽  
C. González-del Pino ◽  
D. Martín-Salvador ◽  
...  
2015 ◽  
Vol 6 (2) ◽  
pp. 87-92
Author(s):  
Kuldeep Sharma ◽  
Ruchi Sharma ◽  
Dhruv Yadav ◽  
Abhilasha Choudhary ◽  
Swapnil Singh

ABSTRACT Background Prevalence of malocclusion varies in different parts of a diverse country like India. Aims To determine the prevalence of malocclusion in population of Jaipur city, Rajasthan, India, as well as subjects views regarding the most important factor for seeking orthodontic treatment by patients who have malocclusion. Materials and methods The sample consisted of 700 subjects (373 males and 327 females) with age group of 15 to 30 years. Subjects were randomly selected and none of them had received orthodontic treatment previously. The subjects who showed bilateral Angle's class I molar relationship with acceptable overjet, overbite and well-aligned arches or minimal crowding were considered to have normal occlusion. The subjects with malocclusion were classified into four groups according to Angle's classification, i.e. class I, class II division 1, class II division 2 and class III malocclusions. Results About 74.57% of population was found to have malocclusion. Among these subjects, 52.57% subjects were diagnosed with class I malocclusion, 12.57% with class II division 1 malocclusion, 8% with class II division 2 and remaining 1.42% had class III malocclusion. No statistically significant differences were found between male and female subjects. Conclusion Among class I malocclusion characteristics, Angle's class I type 1 malocclusion was statistically significantly found to be the most prevalent type of malocclusion. As far as the most important factor for seeking orthodontic treatment was determined, a desire of enhancing facial appearance followed by a desire of attaining straight teeth was considered to be the chief motivational factor among this population. How to cite this article Sharma R, Sharma K, Yadav D, Choudhary A, Singh S. A Study to determine the Prevalence of Malocclusion and Chief Motivational Factor for Desire of Orthodontic Treatment in Jaipur City, India. World J Dent 2015; 6(2):87-92.


2007 ◽  
Vol 77 (5) ◽  
pp. 803-807 ◽  
Author(s):  
Omer Said Sezgin ◽  
Peruze Celenk ◽  
Selim Arici

Abstract Objective: To investigate the effects of different occlusion types on the mandibular asymmetry in young individuals. Materials and Methods: Mandibular asymmetry measurements were performed on the panoramic radiographs of 189 subjects (104 females and 85 males; age range, 11–15 years), with different occlusion patterns. The subjects were divided into five groups according to the occlusion types, namely, Angle Class I (Cl I), Class II division 1 (Cl II/1), Class II division 2 (Cl II/2), Class III (Cl III), and normal occlusions. The Kruskal-Wallis test was used to determine the possible statistically significant differences between the groups for condyle, ramus, and condyle-plus-ramus asymmetry index measurements. Identified differences between groups were further analyzed using the Mann-Whitney U-test at the 95% confidence interval (P < .05). Results: There were no statistically significant differences between male and female subjects. The Kruskal-Wallis test showed that the occlusion type had a significant effect on the condylar asymmetry. In Cl II/1 cases, condylar asymmetry values were significantly different from the values of Cl II/2 and Cl III malocclusion and normal occlusion types. The normal occlusion control group was significantly different from those of Cl II/1 and the Cl I malocclusion groups. Conclusion: Cl II/1 malocclusion has a significant effect on the condylar asymmetry index when compared to Cl II/2 and Cl III malocclusion and normal occlusion types. However, the mean condylar asymmetry index value in Cl II/1 malocclusion was not different from Cl I malocclusion.


2018 ◽  
Vol 5 (1) ◽  
pp. 7-10
Author(s):  
Santiago Coello-Vásquez ◽  
Alberto Alvarado-Cordero ◽  
María Delgado-López ◽  
Luisa Salinas-Abarca

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.


e-GIGI ◽  
2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Gabrielly F. J. Rorong ◽  
Damajanty H. C. Pangemanan ◽  
Juliatri .

Abstract: Malocclusion is an important oral health issue. Its effects on oral function and facial aesthetics have become a major concern. This study aimed to obtain the profile of malocclusion in grade 10 students of SMA Negeri 9 Manado. This was a descriptive study with a cross-sectional design. Population in this study was all students in grade 10 at SMA Negeri 9 Manado totaling 544 students. Samples were 30 students obtained by using purposive sampling technique. The results showed that the majority of respondents had malocclusion of Angle class I classification Dewey modification as many as 23.3% of type 2 and 20% of type 1. Malocclusion of Angle class I type 5 was found in 3.3% of respondents. Respondents with Angle Class II Division 1 and Division 2 were 13.3% each. Respondents with Angle Class III type 1 were as many as 6.7%. Conclusion: Malocclusion Angle classification Dewey modification with the highest percentage was class I type 2. Malocclusion of class II division 1 and division 2 had the same percentage. Of malocclusion class III, only the type 1 was found.Keywords: malocclusion, senior high school studentsAbstrak: Maloklusi merupakan salah satu masalah kesehatan gigi dan mulut yang cukup besar. Pengaruhnya terhadap fungsi mulut dan estetika wajah telah menjadi perhatian besar di bidang kesehatan. Penelitian ini bertujuan untuk mengetahui gambaran maloklusi pada siswa kelas 10 di SMAN 9 Manado. Penelitian ini menggunakan metode deskriptif dengan desain penelitian potong lintang. Populasi penelitian ini ialah seluruh siswa kelas 10 di SMA Negeri 9 Manado yang berjumlah 544 orang. Jumlah sampel sebanyak 30 orang yang diperoleh dengan teknik purposive sampling. Hasil penelitian menunjukkan jenis maloklusi terbanyak dengan klasifikasi Angle kelas I modifikasi Dewey tipe 2 sebanyak 23,3% dan tipe 1 sebanyak 20% responden. Jenis maloklusi Angle kelas I tipe 5 paling sedikit yaitu sebanyak 3,3%. Responden dengan Angle kelas II divisi 1 dan divisi 2 masing-masing sebanyak 13,3%. Responden dengan Angle kelas III tipe 1 sebanyak 6,7%. Simpulan: Maloklusi klasifikasi Angle modifikasi Dewey yang terbanyak ialah kelas I tipe 2. Maloklusi kelas II divisi 1 dan divisi 2 sama banyak. Maloklusi kelas III yang ditemukan hanya tipe 1.Kata kunci: maloklusi, siswa SMA


Author(s):  
Md Masud Rana ◽  
Md Zakir Hossain

Aim : To evaluate the transverse discrepancy in different malocclusion groups. Also to test the hypothesisvthat models with Class II division 2 malocclusion may have mean maxillary arch widths significantly smaller than those with normal occlusions and significantly larger than those with Class II division 1 malocclusion. Thus the proposed study will generate interest among the orthodontists for further study over the transverse discrepancy of our patients and guide them to establish effective treatment strategy and their management.Methods:  This study was a cross  sectional  study conducted among the dental casts of 150 patients and  students of the Department of Orthodontics and Dentofacial Orthopedics, Dhaka Dental College and  Hospital. Both male and female were included.  The first group consists of 50 pair of study models with  permanent dentition and diagnosed as Class I (normal) occlusion. The second group includes another 50 pair of dental casts with permanent dentition and diagnosed as Class II division 1 malocclusion . And third group includes another 50 pair of dental casts with permanent dentition and was diagnosed as Class II division 2 malocclusion. This group of malocclusion was again subdivided into two categories, Class II division 2 malocclusion with crowding and Class II division 2  malocclusion without crowding. The Student’s t –test was used to analyze the data. In this analytical test the level of significance p value <0.05 was considered significantResults: No Statistically significant difference was observed in the maxillary inter canine, inter first  premolar and inter first molar widths between class-I and Class-II div-1. Significant differences were  observed between two groups. In case of mandibular inter first molar widths  (p value = 0.001), and also  differences in case of mandibular inter canine, inter first premolar and inter first molar widths between  Class-I and Class II div 2 malocclusion  p value respectively .01, 0.002,0.01.Conclusion: This study helps in determining possible differences in the dental arch widths of Bangladeshi people in  Class II div 2 adults compared to adults with Class II div 1 and normal occlusion may be an  important aid in further understanding of dentoalveolar characteristics of these conditions, as well as  improving their management.Ban J Orthod & Dentofac Orthop, April 2013; Vol-3, No.2


2005 ◽  
Vol 29 (3) ◽  
pp. 185-188 ◽  
Author(s):  
Ruggero Cattaneo ◽  
Annalisa Monaco ◽  
Oriana Streni ◽  
Vittorio Serafino ◽  
Mario Giannoni

The aim of the investigation was to determine the dynamic of birth delivery and relate to dental occlusion among a group of adult subjects. The group studied was made up of 106 subjects (57 females and 49 males) referred for dental diagnosis and treatment. The average age was 26 with a range 22 to 30 years. In data collection and analysis the following were used as measures: dental occlusion (Angle Class I, II div 1, II div 2 and III) and type of delivery (normal, short, long, caesarean and other). Results showed that among 106 subjects 72 (68%) had malocclusion versus 34 (32%) with normal occlusion; 24 subjects (22.6%) have been normal delivery versus 82 (77.4%) with non-normal delivery. Class I is present in 34 subjects (32%), class II division 1 in 26 (24%), class II division 2 in 22 (20%), class III in 16 (14%), and 8 subjects (6%) fall in the section "other". Among 24 subjects with normal delivery 100% presented class I occlusion. However, among 82 subjects with non-normal delivery 10 subjects had a class I (12.2%) and the 72 (87.8%) had in the other classes, are distributed in the various subgroups of non-normal labor/delivery. None of the subjects with a malocclusion have a normal labor/delivery. Better understanding of the connections among osteopathic theory, craniosacral treatment and the outcomes upon dental occlusion, more rigorous evaluations are warranted.


2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Nugroho Ahmad Riyadi

The aim of orthodontics treatment is normalization of teeth position in three planes, using various orthodontics appliance to reach the chepalometric standar and normal occlusion. Orthodontic treatment for dentoskeletal class II division 1 malocclusion in growing patients using myofunctional appliance may correct anteroposterior planes of mandibula. This study was a descriptive retrospective analytic study to look at the success of Orthodontic treatment for dentoskeletal class II division 1 in growing patients with myofunctional appliance using chepalometrics analysis Steiner value. The sample used in this study is chepalogram radiographic from patient with dentoskeletal class II division 1 malocclusion in growing patients before and after using myofunctional appliance in PPDGS orthodontics Clinic of Padjadjaran University. Statistic analysis were performed with pair t-test and Wilcoxon. Based on this study, it is concluded that orthodontic treatment with myofunctional appliance such as activator and twin block in growing patient with dentoskeletal class II division 1 malocclusion shows significant changes and compatibility with the normal criteria.


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