Abstract: The present invention provides a unitary, adjustable mouth prop having jaw engaging plates connected by a spring. The plates hold a resilient molding material to comfortably and securely contact a patient's teeth. The plates are further connected by an adjusting mechanism which is used to adjust and maintain a controlled occlusal opening. The adjusting mechanism is made of a screw extending from each plate and an internally threaded sleeve connecting the two screws. The sleeve is threaded to either draw together or separate the screws and their attached jaw engaging plates, thereby closing or opening the occlusal opening. This sleeve and screw adjusting mechanism allows for easy and gradual adjustment of the size of the occlusal opening, without disruption of the dental procedure or discomfort to the patient.

Abstract: The device to secure belts and similar parts to resin structures is provided with (Ref. FIG. 4) a block B in elastically yieldable molded material is inserted by snap action in a seat 24 in helmet A engaging forcibly by means grooves and projecting parts 22 in the block itself. One of the ends of the latter is fitted with a flange 12 which engages a recess 26 in the wall of the helmet.Belt C is conveniently and directly secured to block B by folding. The end of said belt, and which is associated with a pin 20. The whole is then inserted into an aperture-slot 18-16 provided in block B and this latter is then introduced in aperture 24.

Abstract: A dental handpiece assembly equipped with an improved latch mechanism for detachably connecting a motor section to a straight or angular handpiece section. The latch includes a ring disposed between the two sections, the ring having an outer surface which is substantially flush with the casings of the respective sections when the parts are assembled and the ring is in its normal latching position. Unlatching is accomplished by displacing the entire ring in a transverse direction, by finger pressure applied at any point along a semi-circumferential area of the ring's outer surface, to shift an arcuate rib out of engagement with the neck portion of the other section of the assembly.

Abstract: A prosthetic dental implant for anchoring to the mandible or maxilla for supporting artificial teeth and dentures includes a substantially flat yet slightly tapering endosteal blade portion constructed of a titanium alloy and including two columns of oblong slot-like apertures interior thereto and two edge columns of half-length oblong slot-like apertures. Support for an artificial tooth is provided by means of a support post which has a substantially circular lateral cross section throughout and an enlarged part-spherical lower portion and an upwardly and inwardly tapering portion thereabove. In an alternative arrangement, the vented concept provided by the slot-like apertures is replaced by a solid blade which includes a plurality of wedge-like lip portions outwardly extending from each side of the anchoring member and defining a recessed channel between adjacent lip portions, the lip portions and recessed channels on one side of the anchoring member being staggered from those on the opposite side.