The Prevention of the TMD by fixing mouth protectors

以10名无颞下颌关节功能障碍者为受试者，在正中牙合及抬高位戴戴合适的口托，用多层螺旋CT及MRI检查这3种产状颏部表现的最大咬合力及髁突在关节间隙的位移。在多层螺旋体层摄影和MRI上，髁突关节间隙内的行为表现为不固定，表现为多样化。用1998年新研制的H型结构的定制护齿器和现成的护齿器，以6人为受试者，比较和检查了下颌的咬紧位移和最大咬合力。用MM-J1-E记录咬合运动，连接受试者3次紧咬和最大咬合力10秒。结果表明，在现有的小鼠保护套中，与咬紧力相关的闭合运动趋于多样化，而没有得到稳定在最大咬合力下的下颌位置。此外，在现成的口腔保护器中，软材料的东西和这种趋势是显著的。为此，获得了在最大咬合力下稳定的下颌位置，并再次确定了H型定制护齿器的闭合路线。由此可见，特制的H型护口器能稳定下颌骨和髁突的位置，证明了其有效性。

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.