Patent ID: 8651861

Claim:
A sulcus impression tip comprising: a body having a gripping portion and a discharge tip, wherein the discharge tip has an external tapered portion and an external straight portion having a distal end, wherein said external tapered portion has a first end and a second end, and wherein a first end of said straight portion extends from said second end of said external tapered portion, said first end of said straight portion opposite said distal end, wherein the discharge tip has a bore there through having an internal continuously tapered portion and an internal straight portion, the internal straight portion extending through both the external straight and tapered portions of the discharge tip, an outside diameter of a needle cannula is friction fit within the bore, wherein the length of the needle cannula is approximately longer than the length of the discharge tip such that a first end of the needle cannula is positioned within the internal straight portion of the bore, and a second end of the needle cannula extends a distance past the distal end, a flange in fluid communication with said needle cannula, and said flange disposed within said gripping portion and having a chamber for receipt of dental impression material, wherein said body defines an angle such that when a dentist is holding the gripping portion, the angle permits the discharge tip and needle cannula to be positioned for easy access in the oral cavity by the dentist, wherein said body includes a square end for sliding into a groove of a pressure supply source, and wherein said distal end having a width greater than an outside diameter of said needle cannula such that said straight portion is sized and shaped for separating the gum from the tooth in the selected region so that the needle cannula is positioned to permit exact positioning for placement of the dental impression material along the sulcus.