190 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.

The object is to provide a novel use application of a dental pulp stem cell collected from a deciduous tooth or a permanent tooth. Disclosed is a composition for autotransplantation or allotransplantation, which is characterized by comprising a dental pulp stem cell collected from a deciduous tooth or a permanent tooth.

The present invention is directed to therapeutic multifunctional immature dental pulp stem cells (IDPSCs), and IDPSCs multi-lineage compositions. The invention is further directed to the use of IDPSCs and compositions to reduce the risk of and / or treat degenerative diseases or for other medicinal and aesthetic purposes.

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.

A pulp chamber locator assists a dentist in performing a root canal procedure. The device includes a generally circular plate and a plurality of struts extending from the plate. The plate has a hole in the vicinity of its center. The device is inserted over a tooth, such that the struts engage the cemento-enamel junction of the tooth. The hole then indicates the proper point of entry for a dental instrument. The device may also include a rotatable indicator for showing the proper angle of entry, to insure that the instrument reaches the pulp chamber of the tooth. The dentist adjusts the position of the indicator, based on information provided by an X-ray or equivalent, and positions the dental instrument so as to be generally parallel with the indicator.

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.

The invention relates to the application of a composition containing recombinant amelogenin and propylene glycol alginate (“PGA”) on to cut dentin tubules followed by installation of a definitive restorative in a single visit.

A root canal surgery robot comprises a movable control table, a root canal cleaner and a root canal filler, and automatic root canal surgical treatment for an affected tooth can be achieved under supervision of a doctor. The movable control table is used for receiving instructions of the doctor and controlling automatic operation of the root canal cleaner and the root canal filler. The multifunctional composite root canal cleaner adopts good wave conduction of liquid incompressibility, so that liquid medicines in a pulp chamber and root canal system generates adaptable multi-harmonic horizontal vibration suitable for the shape of a root canal, the pulp chamber of the affected tooth is thoroughly cleaned and disinfected, and root canal filling can be directly performed on the basis. The root canal has a small diameter, a long length and common irregular shapes, the multifunctional composite root canal filler can generate suitable negative pressure in a dental pulp and root canal system,hot gutta-percha is sucked into the root canal by the negative pressure, so that preparation operation of the root canal is omitted, root canal filling quality is improved, and healthy dental tissuescan be furthest protected.