Abstract: An alkaline product destined to be used in odontiatria for the chemical removal of dentinal pulp in the devitalization operation, the so-said "root canal cure".

Abstract: A structural element for forming a transition joint between a support bar and an associated mounting sleeve in the fabrication of support structure for holding prosthetic teeth. The element is precision molded of plastic and comprises a solid elongated body with an outwardly open elongated recess extending longitudinally of the body. The recess is sized to closely engage the associated mounting sleeve throughout the length of the recess. On the side of the body opposite the recess, there is an outwardly open elongated groove having a width to resiliently engage the support bar. In its preferred form, the groove and the recess have longitudinal axes which are in the same plane to assure that the support bar is in alignment with the axis of the support sleeve. Also, the recess has a generally semi-cylindrical configuration sized to conform to the exterior of the support sleeve and to make contact therewith throughout its length.

Abstract: The present invention is directed toward a handheld dental instrument which automatically regulates the pressure at which the working end of the instrument engages a person's teeth or gums. The instrument includes a probe that is spring biased into a set position. The bias of the probe is predetermined, and is designed to yield to a preset minimum force. The deformation of the instrument's spring bias keeps the force of the instrument consistent against any object. This consistent pressure assures that the instrument will work in the same manner, and give the same results, time after time. Additionally, the consistency of the instrument will result in more accurate results and increase in the dentist's confidence while using the instrument.

Abstract: A tool is set forth defined by elongate main body with a forwardly positioned leg defined by a central bore directed through the main body and forward leg, with an enlarged cylindrical knurled handle mounted rearwardly of the main body for securement thereof for positioning interiorly of an individual's mouth cavity. The tool is geometrically configured to enchance comfort and use in its application within the cavity. A modified configuration of the invention includes a fiber optic cable superimposed within an overlying chamber mounted coextensively with the main body and forward leg, wherein the main body and forward leg extend to the forward terminal end of the forward leg to enhance viewing interiorly of the mouth cavity. A further modified configuration of the instant invention includes a valve positioned to the main body and formed with a reciprocating blade to enable manual modification of vacuum directed through the tool.