Disclosed are endodontic filling materials and methods. A method for filling a dental root canal may include providing a hydrosetting filling material and inserting the hydrosetting filling material into the dental root canal, the material setting in the root canal to form a biocompatible filling. The hydrosetting filling material comprises a hydrogel former and a filler. The hydrogel former is at least one of a reactive organic hydrogel formers, an inorganic hydrogel formers, and a non-reactive organic hydrogel formers, and the filler is at least one of a self-hardening and a non-hardening filler. Plural filling material precursor compositions that collectively contain hydrogel formers and fillers may be provided.

A compressible dental instrument to non-impressively adapt restorative material through compression comprises a handle portion (2), having a docking aperture (4) to interface with a highly compressible foam insert (10) with a docking extrusion and a tip holder (14) having highly compressible tip (16). A user can dock both to compressively adapt composite resin to a tooth's surface by first applying a restorative to a tooth and second applying the compressible portion to the restorative. Applied pressure compresses the tip to non-impressively micro manipulate composite resin.

A compressible dental instrument to non-impressively adapt restorative material through compression comprises a handle portion (2), having a docking aperture (4) to interface with a highly compressible foam insert (10) with a docking extrusion and a tip holder (14) having highly compressible tip (16). A user can dock both to compressively adapt composite resin to a tooth's surface by first applying a restorative to a tooth and second applying the compressible portion to the restorative. Applied pressure compresses the tip to non-impressively micro manipulate composite resin.

A device for irrigating a canal during a root canal treatment or retreatment provides a fluid reservoir in fluid communication with at least one pump for delivering an irrigant under pressure. A hand-held wand has a proximal end for receiving the irrigant under pressure, permitted to flow through the wand head by an actuator. An irrigant delivery needle which affixed to the working end of the wand delivers irrigant through at least one irrigant dispersion orifice at a selected delivery angle and pressure. Aspirating means and/or shielding may optionally be provided.

A device for irrigating a canal during a root canal treatment or retreatment provides a fluid reservoir in fluid communication with at least one pump for delivering an irrigant under pressure. A hand-held wand has a proximal end for receiving the irrigant under pressure, permitted to flow through the wand head by an actuator. An irrigant delivery needle which affixed to the working end of the wand delivers irrigant through at least one irrigant dispersion orifice at a selected delivery angle and pressure. Aspirating means and/or shielding may optionally be provided.

A Addition-fragmentation oligomers containing allylic disulfide groups are described. The oligomers may be added to polymerizable compositions to provide labile crosslinks that can cleave and reform during the polymerization process.

A Addition-fragmentation oligomers containing allylic disulfide groups are described. The oligomers may be added to polymerizable compositions to provide labile crosslinks that can cleave and reform during the polymerization process.

The invention relates to the field of dentistry and is used for reinforcing composite materials to eliminate various defects of dental hard tissues of carious and non-carious origin in the process of direct/indirect and reinforced/non-reinforced composite restorations. The claimed method includes vibrational mechanical activation of composite materials by vibrationally acting upon portions of composite material shaped by manual mechanical activation (e.g., roll/ball) and applied layer-by-layer to the region of a defect. A device for vibrational mechanical activation of a composite material includes at least one working portion for applying a composite material to the region of a defect, the working portion fixedly attached to a handle, which is connected by a framework to a micromotor that creates vibrations which are transferred via the working portion to a layer of composite material by distributing the same across the entire surface of the defect and achieving the simultaneous surface plastic deformation thereof.

The invention relates to the field of dentistry and is used for reinforcing composite materials to eliminate various defects of dental hard tissues of carious and non-carious origin in the process of direct/indirect and reinforced/non-reinforced composite restorations. The claimed method includes vibrational mechanical activation of composite materials by vibrationally acting upon portions of composite material shaped by manual mechanical activation (e.g., roll/ball) and applied layer-by-layer to the region of a defect. A device for vibrational mechanical activation of a composite material includes at least one working portion for applying a composite material to the region of a defect, the working portion fixedly attached to a handle, which is connected by a framework to a micromotor that creates vibrations which are transferred via the working portion to a layer of composite material by distributing the same across the entire surface of the defect and achieving the simultaneous surface plastic deformation thereof.

A housing, a UVC emitting light source combined to the housing for emitting UVC light outside the housing onto the area of interest, and a controller combined to the UVC light source for controlling the intensity of the UVC light emitted onto the area of interest.