Egammai, S (2011) Evaluation of Bite Force and Masticatory Performance in Patients Rehabilitated with Tooth-Supported Overdentures. Masters thesis, Tamilnadu Government Dental College and Hospital, Chennai.
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Abstract
The extraction of the last remaining teeth and the replacement with complete dentures has many consequences as the patient has to adapt to a new situation with respect to teeth, chewing, swallowing and accept edentulousness, which may lead to psychological problems and social isolation. Treatment with tooth-supported overdentures offers an alternative to conventional complete dentures to increase the comfort of the patients by providing a more stable reconstruction. The use of attachments and adherence to the basic principles of complete denture design can improve both retention and stability of overdentures. The present study was performed to compare the maximum bite force and masticatory performance of patients rehabilitated with ball-cap and bar-clip attachment retained tooth – supported overdentures with conventional complete denture wearers, by keeping the natural dentate subjects as control group. The subjects of study were categorized into four groups based on their oral condition and the restorative procedure. So, a total of 16 subjects were included in the study, each group comprising of four subjects. The restorative procedures were completed and the patients were subjected to the evaluation of bite force and masticatory performance tests. The results obtained were statistically analysed. Within the limitations of the present study and from the results of the study, the following conclusions were drawn: 1. The mean bite force, on both right and left sides, of the patients rehabilitated with tooth –supported overdentures was found to be significantly (P < 0.001) higher than that of patients restored with conventional complete dentures, irrespective of the attachment design. 2. The mean difference of bite force of patients treated with ballcap attachment and bar-clip attachment retained tooth-supported overdentures was not statistically significant on both the right (P value – 0.535) and left (P value – 0.440) sides. 3. The maximum bite force of subjects with natural dentition (control group) was significantly (P < 0.001) higher than all the other groups, on both the right and left sides. 4. The mean bite force of conventional complete denture wearers on the right side was significantly higher than that on the left side (P value < 0.005). 5. The masticatory performance of subjects restored with tooth – supported overdentures was significantly higher than that of the patients with conventional completed dentures, but lesser than for the natural dentate subjects, for both the attachment systems. 6. The mean difference of mixing ability indices of patients treated with ball-cap attachment and bar-clip attachment retained toothsupported overdentures was not statistically significant (P value – 0.764). The results of this clinical study revealed that the bite force and masticatory performance of both the attachment retained tooth-supported overdentures may not be as good as natural dentate subjects but comparatively better than the conventional complete denture wearers due to the presence of strategically retained mandibular teeth. The use of attachments would improve the retention and stability of the overdentures despite the periodontally compromised teeth. Most of the studies considered that quantifying the maximum bite force and masticatory performance would assess the effect of dental treatment on oral function. Although, the tooth-supported overdentures did not regain the oral function similar to that of natural dentition, they established a more definite prognosis for the patient compared to a completely edentulous state.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Bite Force ; Masticatory Performance ; Patients Rehabilitated ; Tooth-Supported Overdentures. |
| Subjects: | DENTAL > Prosthodontics and Crown and Bridge |
| Depositing User: | Kambaraman B |
| Date Deposited: | 12 May 2018 13:35 |
| Last Modified: | 12 May 2018 13:35 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/7726 |
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