Evaluation of Cervical Posture of Adolescent Subjects in Skeletal Class I, II, and III

Background: The present study was conducted in order to determine cervical posture in different skeletal sagittal malocclusions as well as to assess whether a correlation existed between cervical posture and skeletal relationships. Methods: Cervical curvature and inclination of 63 subjects was assessed using their lateral cephalometric radiographs. Cervical inclination was assessed using the cervicohorizontal postural variables namely OPT/HOR and CVT/HOR whereas cervical curvature was determined by measuring the angle OPT/CVT. Sagittally, the subjects were also categorized into skeletal Class I, II and III based on the angle ANB. One way ANOVA was used for the comparison of cervical posture in different skeletal sagittal malocclusions. Pearson’s correlation was used to evaluate the correlation of cervical posture with different skeletal sagittal jaw relations. Statistical significance level was set at p≤0.05. Results: Statistically significant differences were found between the different skeletal malocclusions for the cervical curvature angle OPT/CVT (p=0.025). A weak correlation of cervical curvature angle OPT/CVT (r=0.305, p=0.016) with sagittal malocclusion was found. Conclusions: Skeletal sagittal malocclusions differ in their cervical postures, especially cervical curvature. Skeletal Class III subjects have significantly straighter cervical columns than skeletal Class I subjects. Cervical curvature is correlated with sagittal jaw relations. Keywords: cervical curvature; cervical posture; skeletal sagittal malocclusions .

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Quantitative Analysis of Body Posture and Its Correlation With Cervical Posture in Various Malocclusions

10.21203/rs.3.rs-149271/v1 ◽

2021 ◽

Author(s):

Shruthi Pradeep ◽

Priyanka Venkatasubramanian ◽

Ratna Parameswaran ◽

Devaki Vijayalakshmi

Keyword(s):

Class Ii ◽

Body Posture ◽

Force Platform ◽

Class I ◽

Class Iii ◽

Class Iii Malocclusion ◽

Skeletal Class ◽

Skeletal Malocclusion ◽

Lateral Cephalograms ◽

Cervical Posture

Abstract BACKGROUND: Considering that malocclusions can cause cervico-mandibular and cervico-cranial disorders, the aim of this study is to investigate whether there are significant differences in posture in subjects with skeletal class I, class II and skeletal class III malocclusion METHODS: A clinical study conducted on 90 subjects with Angle`s class I, II, III skeletal malocclusion. Standardized Casts of the subjects were used to analyze the tooth characteristics. Lateral cephalograms were used to assess cervical posture through cervical skull Rocabado analysis. A customized force platform with pressure sensors were used for posture analysis. RESULTS: There is a difference in body posture in subjects with skeletal class I, class II and class III malocclusion and a positive correlation between body posture and cervical posture is found in subjects with these classes of skeletal malocclusion. Subjects with class I malocclusion were found to have a normal cervical and body posture. Strain values from the force platform showed equal distribution of strain on both the feet. Subjects with class II malocclusion were found to have a forward cervical posture with the forward lean of body posture. Subjects with class III skeletal malocclusion were found to have a backward cervical posture with the posterior lean of body posture. CONCLUSION: The results suggest that different classes of malocclusion present with an alteration in cervical and body posture. Correction of the malocclusion or an intervention plan for the prevailing malocclusion should be done as early as possible which can be used to correct the posture thereby restoring the equilibrium of the body.

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Microimplant Supported Vertical Control Treatment for Skeletal Class I Dolichofacial Patient with Transverse Discrepancy and Anterior Open Bite

Clinical Journal of Korean Association of Orthodontists ◽

10.33777/cjkao.2019.9.1.34 ◽

2019 ◽

Vol 9 (1) ◽

pp. 34-44

Author(s):

Seong-Ryeol Bae ◽

Ji-Su Jang ◽

Hee-Moon Kyung ◽

Mi-hee Hong ◽

Hyo-Sang Park

Keyword(s):

Open Bite ◽

Class I ◽

Control Treatment ◽

Anterior Open Bite ◽

Skeletal Class ◽

Vertical Control

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Alveolar bone thickness and lower incisor position in skeletal Class I and Class II malocclusions assessed with cone-beam computed tomography

The Korean Journal of Orthodontics ◽

10.4041/kjod.2013.43.3.134 ◽

2013 ◽

Vol 43 (3) ◽

pp. 134 ◽

Cited By ~ 17

Author(s):

Asli Baysal ◽

Faruk Izzet Ucar ◽

Suleyman Kutalmis Buyuk ◽

Torun Ozer ◽

Tancan Uysal

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Alveolar Bone ◽

Class Ii ◽

Class I ◽

Cone Beam ◽

Bone Thickness ◽

Lower Incisor ◽

Skeletal Class

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Duration of the Pubertal Peak in Skeletal Class I and Class III Subjects

The Angle Orthodontist ◽

10.2319/020309-69.1 ◽

2010 ◽

Vol 80 (1) ◽

pp. 54-57 ◽

Cited By ~ 24

Author(s):

Małgorzata Kuc-Michalska ◽

Tiziano Baccetti

Keyword(s):

Class I ◽

Class Iii ◽

Skeletal Class

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Growth Pattern in Skeletal Class I Malocclusion: A Cephalometric Study

Orthodontic Journal of Nepal ◽

10.3126/ojn.v11i1.39088 ◽

2021 ◽

Vol 11 (1) ◽

pp. 49-54

Author(s):

Sujal Amatya ◽

Rabindra Man Shrestha ◽

Shristi Napit

Keyword(s):

Growth Pattern ◽

Strong Correlation ◽

Class I ◽

Facial Growth ◽

Skeletal Class ◽

Facial Height ◽

Lateral Cephalograms ◽

Growth Modification ◽

Cephalometric Study

Introduction: Great emphasis has been given to the evaluation of sagittal apical base relationship in orthodontic diagnosis and treatment planning. The prediction of magnitude and direction of facial growth based on sagittal relationship will help in orthodontic treatment with growth modification. The objective of the study is to assess the growth pattern in skeletal Class I malocclusion. Materials and Method: 104 subjects (52 male and 52 female) with the age between 18-30 years with Class I skeletal relation was selected from lateral cephalograms of patients visiting the Department of Orthodontics, Kantipur Dental College. The ANB angle was measured to assess the sagittal jaw relationship and the Jarabak’s ratio to access the growth pattern. Descriptive statistics were calculated for each parameter. Pearson’s test was done to evaluate the correlation between the parameters. Independent t-test was done to compare Anterior Facial height (AFH), Posterior Facial Height (PFH) and Jarabak’s ratio between male and female subjects. Result: Among the total subjects with skeletal Class I malocclusion; hyperdivergent growth pattern was least (10.57%), followed by normodivergent (18.26%) and hypodivergent growth pattern (71.15%). Mean Jarabak’s ratio for hyperdivergent, normodivergent and hypodivergent growth pattern were 58.65±1.94, 63.98±0.85 and 69.98±4.13 respectively. Very strong correlation was found between AFH and PFH in hyperdivergent (r = 0.821) and normodivergent group (r =0.978). Strong correlation was found in hypodivergent group between AFH and PFH (r =0.743). Also, strong correlation was found in hypodivergent group between PFH and Jarabak’s ratio (r =0.643). Conclusion: Hypodivergent growth pattern was the dominant growth pattern in skeletal Class I malocclusion. PFH influenced the determination of Jarabak’s ratio more than the AFH in hypodivergent growth pattern. Hypodivergent growth pattern is correlated with large SNB angle.

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Comparison of Cervical Vertebral Body Volume in Class II Vertical and Class II Horizontal Cases With Class I Cases Using 3D-DVT

The Journal of Indian Orthodontic Society ◽

10.1177/0301574220947418 ◽

2020 ◽

Vol 54 (4) ◽

pp. 332-337

Author(s):

Hamza Saifuddin Dargahwala ◽

Pallavi Daigavane ◽

Vausdevan SD ◽

Ranjit Kamble ◽

Sunita Shrivastav ◽

...

Keyword(s):

Vertebral Body ◽

Cervical Vertebrae ◽

Class Ii ◽

Growth Patterns ◽

Class I ◽

Body Volume ◽

Reference Structure ◽

Skeletal Class ◽

Significant Difference ◽

Cervical Vertebral Body

The branch of orthodontics has had an interest in the cervical vertebrae wherein cervical spine is used as a reference structure for natural head position, so skeletal age was evaluated by studying variations in the cervical vertebral morphologies. Among all evaluations, very limited data is available wherein comparison between cervical vertebral body volumes between the different malocclusions has been done. This study aimed to compare the differences in the volumes of cervical vertebral bodies of C2, C3, and C4 between skeletal class I and class II malocclusions of both horizontal and vertical growth patterns. In class I the volume was significantly lesser as compared to class II. It was seen that there was statistically no significant difference in the volume between the horizontal and vertical growers. It can be concluded from this study that cervical vertebral body volume has no effect on growth pattern. However, variations in cervical vertebral body volume are seen with different malocclusions.

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PREVALENCE OF MANDIBULAR ASYMMETRY IN SKELETAL CLASS I ADULT PATIENTS

Journal of Research in Dentistry ◽

10.19177/jrd.v2e22014189-97 ◽

2014 ◽

Vol 2 (2) ◽

pp. 189 ◽

Cited By ~ 6

Author(s):

Bruno Frazão Gribel ◽

Guilherme Thiesen ◽

Tássia Silvana Borges ◽

Maria Perpétua Mota Freitas

Keyword(s):

Computed Tomography ◽

Calculation Method ◽

Significant Error ◽

Adult Patients ◽

Class I ◽

Cone Beam ◽

Skeletal Class ◽

Mandibular Asymmetry ◽

Computed Tomography Images ◽

Significant Difference

AIM: The objective of this study was evaluating the prevalence of mandibular asymmetry in skeletal Class I adult patients. MATERIALS AND METHODS: The sample was composed by cone-beam computed tomography images of 250 skeletal Class I patients with age from 18 to 70 years old. The side deviation of mandibular asymmetry was evaluated (right and left), as well as the intensity of this asymmetry. People with gnathic deviation until 2mm were considered as patients with slight asymmetry; deviation between 2 and 5mm was considered moderate asymmetry and those higher than 5mm as severe asymmetries. The error calculation method was performed and there was not significant error in the measurements. To verify the association between the prevalence of mandibular asymmetry and the gender of individuals, the Χ2 was carried out and the significant level adopted was 5% (p<0.05). RESULTS: The results showed that mandibular deviation occurred more frequently to the left side in both genders (male 56.5% e female 58.2%), without statistically significant difference between them (p=0.792). Besides, the prevalence of slight, moderate and severe asymmetries were, respectively 61%, 27% and 12% for males and 54%, 28% and 18% for female; and there was not statistically significant difference (p=0.366) between the gender of the sample evaluated. CONCLUSION: In this study, both deviation and intensity of mandibular asymmetry did not present preference regarding to the gender.

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