Abstract: A prefabricated, hybrid dental pulp organ replacement system has a tube-like core device formed as a substantially cylindrical sleeve formed of a high-strength, high-density material, having a coronal end and an apical end and configured to be partially inserted and fixed at its apical end to a root cavity. The system also has a root device forming a low-density, low-strength volume, including an apical portion formed in an inner volume of a root cavity of a tooth under restoration and a coronal portion extending slightly above a cement-enamel junction of the tooth. The high density core component redirects mechanical forces imposed thereon into a root periphery of a tooth to prevent the forces away from an axial center of the root while protecting the portion of the low density volume surrounded by the jacket from deleterious forces and fluids.

Abstract: A dental core and post system for restoration of teeth includes a core device and a dental post formed as a rod-like member extending along a central vertical axis between a coronal end and an apical end. At least one portion of the rod-like member including the apical end is configured for fixation within a root canal of a tooth for restoration. The core device is attached to or is integral with the coronal end of the dental post. At least one of the core device and dental post include an inner, low-density volume configured to limit mechanical forces communicated through the core device and dental post coaxially with the central vertical post axis after fixation.

Abstract: An apparatus agitates fluid in a root canal of a living patient during cleaning of the root canal. The apparatus includes a tapered tip member having a proximate end and a distal end for insertion into said root canal. The tip member is vibrated or rotated by a driving device for the tapered tip member, which is connected at a proximate end for connection to the driving device. The tip member is made of an elastomeric, non-cutting material having a smooth surface or a textured surface of non-cutting elastomeric material. Optionally, the tip member may include abrasive particles impregnated therein, or coated thereon.

Abstract: In connection with insertion of a post into a root canal, a simultaneous curing of the tangible sealing ma1terial aggregate is accomplished. Gutta percha or other sealing material is removably attachable to the apical end of the post and heat or other energy is applied to the post, either before and/or after the post is inserted into the root canal of the tooth being treated, to plasticize and condense the tangible sealing material aggregate. The sealing material is removably integral with the post, or removably attached to the post. In other cases, the tangible sealing material aggregate is provided in a tapered tip and is attached to the bottom of the post without heat or other energy sources, or by condensation, and is therefore attached as an uncondensed single point fill. When placed in the root canal, the tangible sealing material aggregate tip is held in place by typical root canal cements, such as eugenol based cements, resin based cements and glass ionomer cements.

Abstract: A flexible post for endodontic or reconstructive tooth therapy having a modulus of elasticity which is less than or equal to that of dentin of 18 GPa (giga Pascals). The present invention is preferably made of medical grade optical glass fibers or fiberglass fibers. The micro filaments of the present invention are treated to impart flexibility to each fiber. The fibers are twisted by twisting on other non-axial arrangements of the fibers to impart strength to the unit post. This allows it to function as a permanent post in a tooth. The dental post is flexible and the post conforms to the natural curved contours of a root canal to reduce machining of the tooth and mechanical weakening of the tooth structure.

Abstract: A flexible post for endodontic or reconstructive tooth therapy having a modulus of elasticity which is less than or equal to that of dentin of 18 GPa (giga Pascals). The present invention is preferably made of medical grade optical glass fibers or fiberglass fibers. The micro filaments of the present invention are treated to impart flexibility to each fiber. The fibers are twisted by twisting on other non-axial arrangements of the fibers to impart strength to the unit post. This allows it to function as a permanent post in a tooth. The dental post is flexible and the post conforms to the natural curved contours of a root canal to reduce machining of the tooth and mechanical weakening of the tooth structure.

Abstract: A flexible irrigation syringe tip with a "Luer Lock" or other type of connector commonly used in medical tubing includes a flexible needle. The needle shaft is preferably made of a material which is bendable but which returns to its original shape, such as silicone, polypropylene or other flexible metal alloys and has an open or a closed tip. The tip may be flat or rounded. The hollow shaft of the flexible syringe itself is parallel sided with at least one hole in it to allow the irrigation solution to flush the canal when inserted. Preferably, to insure backflowing of the fluid from the tip area of the syringe needle backwards up the tooth canal, the at least one hole is a lateral side port, which lateral port causes the exiting of fluid in a direction transverse to the longitudinal axis of flexible syringe needle. The shaft may have at least one fluid diverter, such as a flute or groove to help direct the debris up and out of the tooth. This flute or groove may be straight or spiraled.

Abstract: A flexible post for endodontic or reconstructive tooth therapy having a modulus of elasticity which is less than or equal to that of dentin of 18 GPa (giga Pascals). The present invention is preferably made of fiberglass fibers, such as optical fibers, medical grade optical fibers, other medical grade fibers or other fiberglass composite fibers. The micro filaments of the present invention are treated to impart flexibility to each fiber. The fibers are twisted by twisting on other non-axial arrangements of the fibers to impart strength to the unit post. This allows it to function as a permanent post in a tooth. The dental post is flexible and the post conforms to the natural curved contours of a root canal to reduce machining of the tooth and mechanical weakening of the tooth structure.

Abstract: A flexible post for endodontic or reconstructive tooth therapy having a modulus of elasticity which is less than or equal to that of dentin of 18 GPa (giga Pascals). The present invention is preferably made of medical grade optical glass fibers. The micro filaments of the present invention are treated to impart flexibility to each fiber. The fibers are twisted by twisting on other non-axial arrangements of the fibers to impart strength to the unit post. This allows it to function as a permanent post in a tooth. The dental post is flexible and the post conforms to the natural curved contours of a root canal to reduce machining of the tooth and mechanical weakening of the tooth structure.

Abstract: A dental post and core system having an inelastic flexible post. The post, which may be radiopaque and tooth colored, conforms to the natural curved contours of a root canal to reduce machining of the tooth and mechanical weakening of the tooth structure. The post is made of a material having a plurality of fibers, wherein at least one or more of the fibers is non-axially aligned with respect to a straight axis extending from a coronal end to an apical end of a root of the tooth, such as non-axially aligned fibers twisted together, or such as randomly dispersed fibers in a plastic composite. Since not all the fibers are axially aligned, increased strength is achieved by reduction of the possibility of an axially extending fault crack in the resin of the post.

Abstract: A method of installing a dental post and core system having a flexible post.