1998 Fiscal Year Final Research Report Summary
The Prevention of the TMD by fixing mouth protectors
| Project/Area Number |
09672018
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
補綴理工系歯学
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| Research Institution | Tsurumi University |
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Principal Investigator |
YAMAMOTO Tetsuo Tsurumi University, Dentistry, prosthetic Dentistry, Lecturer, 歯学部, 講師 (40166806)
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| Co-Investigator(Kenkyū-buntansha) |
OGAWA Takumi Tsurumi University, Dentistry, prosthetic Dentistry, Instructor, 歯学部, 助手 (20267537)
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| Project Period (FY) |
1997 – 1998
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| Keywords | mouth protector / TMD / sports |
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| Research Abstract |
In making 10 persons without the dysfunction in the temporomandibular joint to be an examinee, it examined in muximum bite force and displacement of the condyle in the articular space by these 3 obstetrical chin presentation by multitomography and MRI with centric occlusion and raise-up place in the fitting mouth protectors. In multitomography and view of the MRI, it was not fixed, and the behavior in the articular space of the condyle showed the diversification. Using custom made mouth protector of the H-type structure newly developed with the ready made mouth protector in the 1998 fiscal year in making 6 persons to be an examinee, the displacement in clenching and maximum bite force of the lower jaw was compared and was examined. The record in the bite of the jaw movement used MM-J1-E, and it connected clenching the examinee of 3 times and maximum bite force for 10 seconds. In the ready made mouse protector, the result showed that closing movement connected clenching tended to diversify without getting the mandibular position which stabilized in maximum bite force. In addition, thing with the soft material and this tendency were remarkable in the ready made mouth protector. For this, the mandibular position which was stabilized in maximum bite force is got, and again, the close route has also been settled H-type custom made mouth protector. From this above fact, the position of lower jaw and condyle was stabilized by H-type custom made mouth protector, and it proved usefulness.
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