Indirasena, C (2022) The Association between Head Posture and Dental Malocclusion among Subjects Seeking Orthodontic Treatment in Thiruchengode, Namakkal District. Masters thesis, Vivekananda Dental College For Women, Tiruchengode.
Full text not available from this repository.Abstract
INTRODUCTION: The purpose of the present study was aimed to evaluate and associate the relationship between neck posture and dental malocclusion among subjects seeking orthodontic treatment in Thiruchengode, Namakkal district. AIM OF THE STUDY: The Aim is to evaluate the relationship between neck posture and dental malocclusion among subjects seeking orthodontic treatment in Thiruchengode, Namakkal district. OBJECTIVES: 1. To evaluate neck posture using lateral cephalograms. 2. To evaluate dental malocclusions using study models. 3. To determine the association between neck posture and dental malocclusion. MATERIALS AND METHODS: The study was conducted in the Department of Orthodontics, Vivekanandha Dental College for Women, Namakkal district. Samples include pre-treatment lateral cephalometric radiographs and study models of subjects seeking orthodontic treatment reporting to the Department of Orthodontics, Vivekanandha Dental College for Women. The sample size obtained was 101. Both males and females were included in the study. Inclusion criteria consists of patients record (Lateral cephalometric radiographs and study models) with permanent dentition (except 3rd molars) aging between 13 – 30 years. Patient with history of orthodontic treatment, cervical vertebrae abnormality, Dentofacial abnormality and TMJ abnormalities was excluded. Study models were analysed using digital Vernier caliper. Angle’s classification was used to classify the molar relationship of each subject. The radiograph was taken in the natural head position (NHP) with the teeth in occluded position. On lateral cephalogram reference points and lines on the head (cranium and maxilla) and cervical column (2nd / 4th vertebrae) was marked and traced for each radiographs. Five postural variables such as craniovertical (NSL/VER, NL/VER), craniocervical (NSL/OPT, NSL/CVT, NL/OPT, NL/CVT), cervicohorizontal (OPT/HOR, CVT/HOR), cervical curvate (OPT/CVT) was evaluated in lateral cephalograms. In addition the following various malocclusion traits that was recorded are molar relation, overjet, overbite, crowding, spacing and midline diastema upper and lower in the study models. STATISTICAL ANALYSIS: Data were analyzed using SPSS software version 25.0 (IBM Corp.). Descriptive statistics were performed. Unpaired t-test and Chi- square test was used to compare malocclusion traits and posture variables. One way ANOVA and tukey's post-hoc test was used to compare malocclusion categories and posture variables. Spearman's correlation was used to find the association between malocclusion traits and posture variables. RESULTS: The results showed that Subjects with increased overbite appear to be associated with increase in craniovertical angle in postural variable. A statistically significant correlation was found between spacing of dental arches with Cervicohorizontal angles (OPT/HOR- (0.002) and CVT/HOR – (0.001). A statistically significant correlation was found between upper midline diastema with Craniocervical angles (NSL/OPT- (0.002). The mean difference of Cervical angle (OPT/CVT- 0.018) between class II and III participants and Craniocervical angle (NL/OPT- (0.045) was statistically significant. The mean difference of Cervical angle (OPT/CVT – (0.015) was statistically significant in patients with increased overjet. CONCLUSION: Subjects with increased overjet, overbite and spacing attributes to be associated with the increase in postural variables on lateral cephalograms. In routine orthodontic diagnosis and treatment planning, on clinical examination of malocclusal traits there may be alteration in the head posture which could be a contributing factor in affecting the normal occlusal relationship.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | 241919501 |
| Uncontrolled Keywords: | Lateral cephalograms, Study models, Postural variables, Malocclusal traits. |
| Subjects: | DENTAL > Orthodontics and Dentofacial Orthopedics |
| Depositing User: | Subramani R |
| Date Deposited: | 08 May 2022 10:28 |
| Last Modified: | 14 May 2022 04:15 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/19814 |
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