Patent ID: 7172421
Filing Date: 2007-02-06
Classification: A61C,Y10T

Abstract:
1. A device for use in an endodontic root canal, performed using a dental drill hand set, said device comprising: a first upper unit coupled to said drill hand set, said first upper unit being cylindrical in shape and having a first drill shank shaft therethrough and wherein said first upper unit has a first threading on its outside surface; and a second bottom unit being cylindrical in shape and having a second drill shank shaft therethrough, said second bottom unit has a second corresponding threading on its inside surface, wherein when said second bottom unit is screwed onto said first upper unit a root canal jig is formed having a set height, said root canal jig having a series of adjustment markers, positioned on said first upper unit of said root canal jig, said adjustment markers configured to denote the combined height of said root canal jig from the bottom of said second bottom unit to the top of said first upper unit, allowing a shank from said drill hand set to pass through said first and second drill shank shafts, such that when said drill shank of said drill hand set is drilled into an affected tooth for a root canal, said drill shank is prevented from drilling along its entire length into the root of said affected toot when the bottom of said root canal jig contacts the top of the tooths, wherein said root canal jig is set to a particular height such that the combined height of said root canal jig added to the total depth of the root of the affected tooth is equal to the total length of the drill shank that extends beyond the bottom of said drill hand set such that when a dentist is drilling said root of said affected tooth, the amount of said drill shank that extends below the bottom of said root canal jig is equal to the depth of said root being drilled.