Patent ID: 7156657

Claim:
A dental articulator comprising: a lower frame ( 23 ) provided with a lower jaw model supporting portion ( 21 ) in its upper surface, wherein a lower jaw model ( 20 ) is detachably mounted on said supporting portion ( 21 ) through one of height-control means ( 16 , 24 , 40 , 43 ); a stand portion ( 30 ) disposed upright in a rear portion of said lower frame ( 23 ); an upper frame ( 13 ) capable of performing its opening and closing motion relative to said stand portion ( 30 ), wherein said upper frame ( 13 ) is provided with an upper jaw model supporting portion ( 11 ) in its lower surface, wherein an upper jaw model ( 10 ) is detachably mounted on said supporting portion ( 11 ) through another one of said height-control means ( 16 , 24 , 40 , 43 ); wherein said height-control means ( 16 , 24 , 40 , 43 ) enables said jaw model ( 10 , 20 ) to be displaced vertically without any inclination relative to said frame ( 13 , 23 ) and, wherein said height-control means ( 16 , 24 , 40 , 43 ) is constructed of a plurality of circular planar stages ( 16 , 24 ) which differ from each other in thickness and detachably mounted on said supporting portion ( 11 , 21 ) to make it possible to displace said jaw model ( 10 , 20 ) vertically without any inclination relative to said frame ( 13 , 23 ) when a first one of said circular planar stages ( 24 ) is exchanged for another one different from said first one in thickness.