Evaluation of Denture Functions in Complete Denture Wearers by Using Electromyography and Pressure Distribution Measuring System
| Autor: | Ryuichi Masuo, Tsutomu Okajima, Takashi Sagae, Masari Ohnuki, Yoshikazu Ishikawa, Toshio Hosoi |
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| Rok vydání: | 1991 |
| Předmět: | |
| Zdroj: | Nihon Hotetsu Shika Gakkai Zasshi. 35:804-816 |
| ISSN: | 1883-177X 0389-5386 |
| DOI: | 10.2186/jjps.35.804 |
| Popis: | The biting forces from integrated EMG and the pressure distributions at the denture basemucosal interface in three complete denture wearers were recorded simultaneously under the regular clenching condition. In order to measure the stress of the tissue bearing pressure, duplicated mandibular dentures containing six pressure sensors on basal surface were constructed. Integrated EMG and pressure distributions were measured at the same time and analyzed on time by using digital processing system. The conclusions as to the change of pressure distribution and calculating the biting force by proceeding occlusal adjustment were as follows:1. It was possible that present method of calculating the biting force from integrated EMG and pressure distribution by pressure sensors could be used for complete denture wearers.2. Before occlusal adjustment, it was recognized to dispersion of pressure distribution. But after occlusal adjustment, it was indicated to converge of pressure distribution.3. After occlusal adjustment, adequate pressure distribution was transmitted directly to tissues under the denture base. Therefore, it was acknowledged that load supporting capacity and biting force had increased.4. After occlusal adjustment, the activity of masseter and temporal muscles had become more active. It was recognized to coordination of four muscles.5. The Measuring System which calculated the biting force from the integrated EMG and measured pressure distribution under the denture base was available to evaluate the denture functions in complete denture wearers. |
| Databáze: | OpenAIRE |
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