Abstract: A dental irrigating and aspirating instrument utilizes a cannula with a reduced diameter extended member shaped to occlude the apical foramen while conducting irrigating fluid into the apical terminations of root canal preparations. The extended member also serves to occlude the apical foramen while conducting fluid and debris out of the apical regions during aspiration. The extended member can be shaped with a cutting surface to prepare a base for the root canal preparation and root canal filling. Use and fabrication of the instrument for irrigation and aspiration of the fullest depths of the gingival sulci and periodontal pockets in periodontic practice is also described. A handpiece is described that retains the instrument allowing manipulation of the instrument and control of fluids to and from the instrument.

Abstract: A method of treating baldness by inserting strands of natural or synthetic hair into the scalp by suitable penetration means is disclosed. The method essentially involves passing a U-shaped loop of hair through the tissue beneath the scalp so that the base of the U protrudes therefrom and engaging the base of a second U-shaped strand with the first strand following which the first strand is pulled in the reverse direction so that the interengaged portions are disposed beneath the scalp in the insertion pathway. The method also includes the alternative of performing a unit of two interlocking strands whose true ends have been joined chemically, thermally, mechanically or electronically and inserting the units beneath the scalp with their opposed ends projecting from the penetration openings.