Abstract: A bone-growth stimulating composition for forming a resorbable implant, methods for making such a composition and a corresponding putty/paste material. In some embodiments of the invention, such a material includes a plurality of particles having a predetermined size and comprising a first calcium sulfate compound, a resorbable polymer in a predetermined weight ratio and a growth factor.

Abstract: A dental implant comprises a solid elongated body including a longitudinal axis having distal and proximal ends in which the proximal end includes a collar having an axial length in a range of about 1 to about 3 millimeters. The collar exhibits a proximal and a distal segment in which the proximal segment includes a surface texture adapted for the promotion of tissue growth and in which the distal segment includes a surface texture adapted for the promotion of osseo-integration of surrounding preferably cortical bone. Either one or the other of the sub-segments is provided with an ordered microgeometric repetitive surface pattern in the form of alternating ridges and grooves, each having a fixed or established width in a range of about 2.0 to about 25 microns and a fixed or established depth in a range of about 2.

Abstract: A micromechanical seal between a first body and a second body is co-axially threadably securable about a portion of the first body. The seal is created by the combination of an annular planar radial surface within the first body; a surface of rotation of the first body disposed radially inwardly of the annular plane surface and defining, within a radial plane of the body, an obtuse angle, relative to the planar radial surface, in a range of about 90.

Abstract: A dental drill, formed of a substantially solid elongate body, includes (a) a longitudinal shank having a proximal and a distal end and having an axially disposed irrigation channel; (b) a working portion comprising (i) an annular boss integrally disposed distally of the shank; (ii) a neck of reduced radius relative to the boss, integrally disposed distally of the boss; (iii) a cutting region of uniform diameter integrally disposed distally of the neck; and (iv) a cutting region having a tapered external geometry, integrally dependant distally of the cutting region of uniform diameter, the cutting regions including at least four integral axi-symmetric flutes formed upon lateral surfaces of the regions, each of the flutes defining co-axial peripheral profiles, each of the flutes separated by substantially co-axial integral channels, each having at least one outlet therein, the working portion of the drill having an irrigation channel extending the entire length and integral with the shank irrigation, the one o

Abstract: There is provided an analog dental torque wrench in which, at a given level of torque imparted to a dental work object, force communicated by a compression spring through an interface impart against a ball bearing will cause rotation of a handle and medial hollow cylindrical segment of the wrench off of the bearing to an off-axis position relative to a longitudinal work axis, disabling a wrench head, precluding further application of a torque to the work object, and causing shear of the wrench to occur either to the left or right of the longitudinal axis, and external to the mouth of the patient.

Abstract: A dental implant includes a rigid body having axially symmetric and radially circumferential spiral pitch surfaces, in a range of about 22 to about 28 pitch surfaces per axial inch, an upper concave bevel surface above each pitch surface, which is longer than a lower bevel surface beneath each pitch surface, and an intersection of each plane of each pitch surface, and each plane of each lower bevel surface defining a total included angle in a range of about 90 to about 130 degrees, the rigid body having minor thread diameters at intersections, between pitch surfaces, of the upper and lower bevel surfaces, the pitch surfaces and the minor thread diameters defining, at any axial radius of the rigid body, a ratio of thread pitch to thread depth in a range of about 1.25:1 to about 1.40:1. Each of the lower bevel surfaces define a total included angle in a range of about 20 to about 30 degrees relative to any given axial radius of the implant at a minor thread diameter.

Abstract: A dental drill is formed of a solid elongate body, having a longitudinal shank including an axially disposed irrigation channel and a working portion having an annular boss and a neck of reduced radius relative to the boss, and a cutting region disposed distally of the neck, the cutting region including at least four axi-symmetric flutes formed upon lateral surfaces of the cutting region, each of the flutes defining co-axial peripheral profiles, each of the flutes separated by substantially co-axial channels, the working portion of the drill having an irrigation channel extending the entire length and having at least one outlet within each of the channels, the one outlet of each channel located proximally to a distal tip of the working portion, the tip defining a surface formed integrally and continuously with ends of the flutes and channels.

Abstract: A buttress-thread dental implant constitutes a rigid body including axially symmetric and radially uniform circumferential spiral pitch surfaces in the range or about 22 to about 28 of such pitch surfaces per axial inch. Above each pitch surface is a concave upper bevel surface which is longer than a lower bevel surface beneath each pitch surface. The intersection of each plane of each pitch surface with each plane of each lower bevel surface defines a total included bevel angle in the range of about 90 to about 1.30 degrees. The implant is also characterized by ratio of thread pitch to thread depth in the range of about 1.25:1 to about 1.40:1.