Abstract: A coilable storage device for retaining an article comprising: a metal spring strip, and a piece of material extending across the metal spring strip, wherein the metal spring strip is a relatively thin, elongated piece of metal material having a first end, a second end, a first side edge, and a second side edge. The metal spring strip has an internal lateral bias for maintaining an opened position wherein the metal spring strip is substantially straight longitudinally from the first end to the second end and has a transverse arch from the first side edge to the second side edge. The metal spring strip further has an internal longitudinal bias for maintaining a closed position wherein the metal spring strip is substantially arcuate longitudinally from the first end to the second end and is substantially straight transversely from the first side edge to the second side edge. The metal spring strip is movable from the opened position to the closed position.

Abstract: A dental X-ray holder for use in endodontics, for positioning a dental X-ray film in a predetermined position in the mouth for retention of the film in a given position at each placement of the holder by the patient's bite on the holder, comprises a film retaining member having an inner tongue and an outer tongue defining a slot therebetween for receiving and holding an X-ray film packet; two spaced apart side walls integral with the respective side edges of the film retaining member, the side walls together with the film retaining member defining a U-shaped area therebetween for accommodating endodontic equipment, such as a rubber dam clamp and root canal files; two flanges, the transverse edge of each flange integral with the upper edge of the adjacent side wall and the longitudinal edge of each flange integral with the adjacent portions of the upper edge of the film retaining member for providing rigidity; and a positioning arm which may be removably attached to either side wall.