Removable denture retaining structure
AssigneesWada Seimitsu Shiken Kabushiki Kaisha, Nippon Mektron, Ltd., Haruyuki Kawahara
InventorsHaruyuki Kawahara, Hiroki Wada, Takashi Tsutsumi, Ikuya Matsuo
Life of this patent
Estimating the term…
Abstract
The specification discloses a removable denture retaining structure in which an elastic mounting member is provided between a denture body and an support base. This structure can obviate all problems of the prior art, i.e. many parts are required, skilled technique is also required to produce, mount and dismount the denture body, and looseness and breakage due to fatigue are apt to occur. Furthermore, the invention is advantageous because the structure can provide patients with comfortable feeling during use.
Claims8
A removable denture retaining structure including a support base and denture body, said removable denture retaining structure being characterized in that said denture body is integrated with an elastic mounting member which is made from any of polyurethane rubber, segmented polyurethane rubber and composite materials of these rubber materials and has at least the physical characteristics of the modulus of elasticity of 10 to 10,000 kg/cm.sup.2, a coefficient of friction of 0.03 to 1.8 and a compression ratio of 0.32 to 0.50, and said elastic mounting member is removably pressure-fitted to said support base to elastically be in frictional contact therewith, so that said denture body does not float from or sink in said support base during normal biting motion, and so that said denture body can be removed from said support base when a great external force different from the biting force is applied to remove said denture body by compressing to deform said elastic mounting member.
Dependencies are inferred from the claim text.