Patent ID: 6231341
Filing Date: 2001-05-15
Classification: A61C

Abstract:
A matrix tensioner for tightly securing a matrix band around teeth, said matrix tensioner comprising:a first post having first and second ends, said first end having a clamping means for securing both ends of a matrix band and occupying approximately one third of a first end of said post;a second post of approximately the same dimension as said first post, said second post having first and second ends and axial right angle cross slots in approximately one third of a first end, each of said cross slots having a width for the easy passage of a double thickness of the matrix band;first and second parallel rods passing through the diameters of said first and second posts at a right angle to the axis of said posts, said first rod being pivotally coupled to said first post and threaded through said second post for adjusting the space between said posts, said second rod being coupled to said first post and slideable through a hole in said second post for maintaining said posts parallel, one of said parallel rods being near said second end and one parallel rod located approximately midway between said first and second end of said first and second post, the distance between the rod at said midway point and the first end of the post being greater than the height of a patient's tooth on the lingual side of the jaw.