Vidhiyasagar, P (2012) A Comparative Study to Evaluate the Occlusal Contacts among the Tribal and Urban Population during Lateral Eccentric Mandibular Movements. Masters thesis, Sri Ramakrishna Dental College and Hospital, Coimbatore.
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Abstract
Dietary pattern can play a significant role in determining the occlusal scheme during mandibular lateral excursive movements. The aim of the study was to determine the nature of anterior guidance present among tribal and urban population, in and around Coimbatore, Tamil Nadu, India. The study population was selected based on dietary pattern. The dietary pattern was determined with the help of questionnaires. From the survey, tribal population with fibrous dietary habit was selected from the villages of Masinagudi near Ooty and from Thimbam forest near Sathiyamangalam. Urban population with soft dietary habit was selected from the city of Coimbatore. Within the limitations of this study the following conclusions can be drawn. 1. In general, canine protected occlusion was more common in younger patients and Group function in older patients, in both Tribal and Urban population. 2. The dominant occlusal scheme was clearly demarcated in each age group of tribal population studied. The reason for this can be attributed to functional occlusal wear as a result of intake of coarse, fibrous food. 3. No positive correlation between age and dynamic occlusal scheme was found in Urban population. There was overlapping of occlusal schemes in Urban population (Especially U2 group). Reduced functional occlusal wear due to soft dietary habit could be the reason for this finding. 4. Significant number of balancing side contacts were noticed in Urban population. Difference in occlusal wear can be stated as the reason for the above finding. In spite of the presence of these balancing side interferences, patients were asymptomatic. This emphasises the part that mere presence of occlusal prematurity is not an indication for occlusal equilibration. Influence of dietary pattern on dynamic occlusal scheme is given the least importance during Prosthodontic rehabilitation. Considering the above factors, dietary pattern should be considered as one of the main factors in determining the occlusal scheme and hence utmost consideration should be given to it. The success of any dental restorations should not be measured by immediate outcomes, such as patient comfort and appearance, but also by long term survival and stability of definitive restorations. Patients comfort should be coincident with mechanical precision. Controlling the forces on restorations is one of the key factors in their longevity. In addition, the occlusal scheme should be “therapeutic” in that, it should not create an environment favourable for selfdestruction of teeth restoration surfaces and/or mucoskeletal problems. Detailed dietary history should be noted during the initial phase of oral rehabilitation, so that it can be considered in generating the occlusal scheme for functional harmony and longevity. The canine protected occlusal scheme seems to be more suitable for Orthodontic and Prosthodontic rehabilitation planned in younger patients, while the Group function occlusion may be a suitable pattern for Prosthodontic rehabilitation planned in middle age and older patients, especially for people with coarse dietary habits. However, the presence of parafunctional habits, unilateral chewing habit, psychological factors, periodontal diseases, temporomandibular disorders as a factor in determining the occlusal scheme, was not considered in this study. These factors influence the occlusal scheme in a gradual manner. Unfortunately the present study is a cross-sectional study which does not allow the investigation of such longitudinal process in the stomatognathic system. Further investigations are needed in the above mentioned aspect to allow a better understanding of this phenomenon.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Occlusal Contacts ; Tribal and Urban Population ; Lateral Eccentric Mandibular Movements ; Comparative study. |
| Subjects: | DENTAL > Prosthodontics and Crown and Bridge |
| Depositing User: | Kambaraman B |
| Date Deposited: | 12 May 2018 15:57 |
| Last Modified: | 12 May 2018 15:57 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/7739 |
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