Abstract: The problems of stability and life of dental restoration disposed in root canals are addressed by a support post for a coronal prosthesis having a ceramic layer of hydroxyapatite, or equivalent, sputter-deposited or plasma sprayed on to a metal support post pretreated with an oxide, by abrasion or by etching.

Abstract: Apparatus for the delivery of light-curable composite dental filling material comprises a tubular composite reservoir, plunger and slider. The slider is free to move longitudinally along the reservoir but is matingly mounted to facets on the outside surface of the reservoir to prevent angular movement of the slider relative to the reservoir. The plunger consists of a shaft threaded to mate with the threaded inside diameter of the composite reservoir. The plunger also has a disk integrally formed to end of the shaft at one end and a male front piece at the other. The male front piece mates with a female fitting of a separate composite extrusion element.

Abstract: The present invention provides a structure 10 for holding multiple toothbrushes 42, 44, 46, 48 in such a way as to hold the toothbrushes 42, 44, 46, 48 by the handle, rather than resting on the bristles as in conventional designs, and position the toothbrushes so they can properly drain over different areas without contamination from other toothbrushes and in a direction which promotes rapid evaporation of residue. The present invention also provides a structure 10 for positioning the toothbrushes directly above a sink for proper drainage into the sink.