| 摘要 |
A mass produced universal dental appliancee ( 1 ) comprises two parts, the parts intended in use to contact the posterior teeth on respective opposite sides of either the upper or lower jaw, each part comprising a composite structure comprising: i) a first layer ( 2 ) formed a durable, resilient, elastomeric material having a softening point in the range from 35 to 100° C. and which in use contacts and grips the occlusal biting surfaces of the posterior teeth; and ii) a second layer ( 3 ) formed from a durable, non-deformable material having a softening point over 100° C. and which in use provides a bite plate; wherein the second layer of each part is provided with a protrusion ( 5 ), formed of durable, non-deformable material having a softening point over 100° C., which extends from at least 2 mm up to 20 mm from the surface ( 4 ) of the bite plate away from the first layer and which is positioned such that in use the protrusion extends from the surface of the bite plate above at least a part of the first and/or second molar teeth which are in contact with the first layer. The appliance is useful in a method for reducing facial aging.
|
