194 results about "Pulpa dentis" patented technology

Systems and methods provide for automated, cyclic delivery and evacuation of a treatment or irrigation solution from a tooth root pulp chamber and pulp canals. A manifold has a base member sized and configured to rest on a crown of an instrumented tooth and a top member sized and configured to couple with the base member to define an inlet chamber and an outlet chamber. The distal end of a needle is passed through an opening between the inlet and outlet chambers and extended distally beyond the base member into a pulp canal. The proximal end of the needle includes an opening in fluid communication with the inlet chamber. A solution is transferred from a fluid supply source to the inlet chamber and through the needle into the pulp chamber and pulp canals. The spent solution is evacuated from the pulp chamber and pulp canals through the outlet chamber.

A dental composition compatible with acidic dental primers / adhesives, the dental composition comprising (A) 5% (w / w) to 90% (w / w) of at least one polymerizable monomer having at least one ethylenically unsaturated vinyl, acrylate, or methacrylate group; (B) 0.01% (w / w) to 10% (w / w) of at least one compound of structurewhere each of R1, R2, and R3 may be the same or different and is independently selected from H, alkyl, alkoxyl, aryl, acyl, allyl, pyridyl, —OH, alkenyl, aralkyl, cycloalkyl, and heterocyclic structure containing O, S, or N; (C) 0.01% (w / w) to 10% (w / w) of at least one hydroperoxide compound with at least one hydroperoxide groups attached to a tertiary carbon; (D) 5% (w / w) to 95% (w / w) of at least one finely divided filler; (E) 0% (w / w) to 25% (w / w) of one or more components selected from a solvent, a photoinitiator, a stabilizer, and / or an antimicrobial agent. One embodiment of the invention is a dental cementation or core buildup kit that has enhanced compatibility between the acidic primer / adhesive and the cement or core buildup material, and therefore enhanced adhesion to a tooth. The kit includes (I) an acidic primer / adhesive composition having a pH less than 4.5; and (II) a cement or core buildup material having the above described composition comprising components (A)-(E). Another embodiment of the invention is a method for adhering a prosthetic device to a tooth to restore the function and / or appearance of a diseased tooth. Another embodiment of the invention is a method of providing a temporary cement, crown and / or bridge, inlay, onlay, endodontic sealer, and / or an endodontic filling material, using the inventive composition.

Apparatus and methods for endodontic treatment of teeth provide effective cleaning of organic material (such as pulp and diseased tissue) from the root canal system. In an embodiment, a compressor system generates high pressure liquid (e.g., water) that flows through an orifice to produce a high-velocity collimated jet of liquid. The high-velocity jet is directed toward a surface of a tooth, for example, an exposed dentinal surface, and impingement of the jet onto the surface generates an acoustic wave that propagates throughout the tooth. The acoustic wave effectively detaches organic material from dentinal surfaces and tubules. The detached organic material is flushed from the root canal system by the liquid jet and / or by additional irrigation.

The invention discloses a pulp capping agent with bioactivity and a preparation method thereof. The pulp capping agent with bioactivity comprises dentin extraction solution and dentin powder. The pulp capping agent preparation method comprises the following steps: (1) selecting health dental tissue, cleaning by PBS (Phosphate Buffer Solution) to remove periodontal ligament, cementum and dental pulp, and sterilizing; (2) freezing the dental tissue, and grinding the frozen dental tissue to particles; (3) culturing the dental tissue particles in a medium; and (4) filtering the supernatant from the step (3) to obtain the dentin extraction solution, centrifugally cleaning the cultured dentin particles by the PBS, oven-drying, and grinding to obtain the dentin powders. The pulp capping agent can effectively promote the repair of dentin only by blending the dentin extraction solution with the dentin powder, and applying the mixture at a position close to the dental pulp or at a position at which the dental pulp is exposed, thereby improving the success rate of live-marrow conservation, and providing a new treatment means for patients suffering from accident pulp perforation.