Patent ID: 8727771

Claim:
A dental prophylaxis angle, comprising: a. a body having a proximal end a distal end defining a longitudinal axis extending therebetween, and comprising a content lumen within the body, wherein the proximal end of the body is attachable to a concentric drive dental handpiece and the distal end of the body comprises a dental tip and a content portal proximate the dental tip; b. a collapsible container for containing dentifrice, having a proximal end and a distal end and disposed within the content lumen and in fluid communication with content portal; and c. a reciprocating advancement mechanism comprising a gripping section slidably attached to an exterior surface of the body, and at least one member extending through the body and into the content lumen , the at least one member comprising at least one flexible member partially circumscribing the collapsible container at the proximal end of the collapsible container, wherein when sliding the gripping section proximally along the longitudinal axis of the body the at least one member at least partially compresses the collapsible container in the distal direction; wherein the gripping section of the reciprocating advancement mechanism comprises a first fixation point and a second fixation point laterally opposing the first fixation point, wherein the body comprises a first orifice and a second orifice laterally opposing the first orifice, wherein a first end of the flexible member is affixed to the first fixation point and a second end of the flexible member is affixed to the second fixation point and the flexible member extends through the first orifice and the second orifice into the content lumen, and wherein the first fixation point and the second fixation point are positioned to selectively align with the first orifice and the second orifice, respectively.