A curved handpiece for dental root canal treatment forms an overall scheme of a dental curved handpiece, which is internally conductive, surface insulated, compact in structure, small in height and size and convenient to repair. A dental root canal length measuring function can be realized accurately, safely and stably, and a stable two-in-one function of combining root canal preparation and dental root canal length measurement is further realized. The structure is compact as a whole, and a good visual field is provided. The risk of instrument separation or preparation step generation in the operation process of doctors is reduced, and the safety improvement is greatly guaranteed. According to the scheme, it is convenient to disassemble, repair and clean, the risk of cross infection is reduced, and the use safety and convenience effects of the present invention are further improved. The curved handpiece has great market benefits.

Methods and apparatus(es) for improving irrigation and aspiration of chemical irrigants (e.g., NaOCl) from root canals and/or a pulp chamber of a tooth during a dental procedure are provided. The methods and apparatus(es) enable a dental practitioner to single-handedly perform irrigation and aspiration substantially simultaneously during a dental procedure, thereby simplifying the procedure and mitigating the risk of chemical spillage onto the gums and into the mouth of a patient. Single-handed operation by the practitioner enables the dental technician (or assistant) to perform other duties, while enabling the practitioner to use an available hand to utilize or pass other instruments, hold a mirror to observe the irrigation process, or the like. The irrigation hose may be connected to low-volume suction, rather than the high-volume suction, thereby increasing the time for the chemical irrigant to interact with the root canal surface and reducing the production of droplets that may spatter chemicals and/or debris onto the patient.

Methods and apparatus(es) for improving irrigation and aspiration of chemical irrigants (e.g., NaOCl) from root canals and/or a pulp chamber of a tooth during a dental procedure are provided. The methods and apparatus(es) enable a dental practitioner to single-handedly perform irrigation and aspiration substantially simultaneously during a dental procedure, thereby simplifying the procedure and mitigating the risk of chemical spillage onto the gums and into the mouth of a patient. Single-handed operation by the practitioner enables the dental technician (or assistant) to perform other duties, while enabling the practitioner to use an available hand to utilize or pass other instruments, hold a mirror to observe the irrigation process, or the like. The irrigation hose may be connected to low-volume suction, rather than the high-volume suction, thereby increasing the time for the chemical irrigant to interact with the root canal surface and reducing the production of droplets that may spatter chemicals and/or debris onto the patient.

An endodontic instrument that includes a tapered rod, the rod including an active portion and a distal end, the active portion defining an envelope having a longitudinal axis that coincides with an axis of rotation of the instrument.

An endodontic instrument that includes a tapered rod, the rod including an active portion and a distal end, the active portion defining an envelope having a longitudinal axis that coincides with an axis of rotation of the instrument.

A dental tissue regenerative composition. The composition includes a combination of (1) human dental pulp stem cells and (2) at least one of human umbilical vein endothelial cells or vascular endothelial growth factor. The combination is encapsulated in a light-activated gelatin methacrylate hydrogel.

A dental tissue regenerative composition. The composition includes a combination of (1) human dental pulp stem cells and (2) at least one of human umbilical vein endothelial cells or vascular endothelial growth factor. The combination is encapsulated in a light-activated gelatin methacrylate hydrogel.

Disclosed herein is a dental device for delivering fluid continuously while activated in an endodontic application. The dental device includes a hollow needle having a tip end and a connector portion; and a handle. One end of the handle is configured to be affixed to the connector portion of the hollow needle. The opposite end of the handle is capable of being attached to an endodontic handpiece or a sonic agitator for the activation. The connector portion includes at least one tube connector that is an integral part of the connector portion of the hollow needle or a plurality of openings on the connector portion to accommodate the hollow needle to a connector. The connector is a modular fluid delivery connector which is removable from the needle such that it can be reused.

Disclosed herein is a dental device for delivering fluid continuously while activated in an endodontic application. The dental device includes a hollow needle having a tip end and a connector portion; and a handle. One end of the handle is configured to be affixed to the connector portion of the hollow needle. The opposite end of the handle is capable of being attached to an endodontic handpiece or a sonic agitator for the activation. The connector portion includes at least one tube connector that is an integral part of the connector portion of the hollow needle or a plurality of openings on the connector portion to accommodate the hollow needle to a connector. The connector is a modular fluid delivery connector which is removable from the needle such that it can be reused.

Provided herein are compositions and kits including trichloroacetic acid, and methods of using the same for debridement during endodontic treatment.