A dental burr for preparing tooth for fabrication may include a shank designed to engage with a dental handpiece; and a burr body extending from the shank. The burr body may have a lip distal from the shank, the lip defining an opening into a cavity within the burr body, the cavity being sized to accommodate a tooth; and an indented edge extending from an area of the burr body proximate to the lip to the lip, wherein an exterior surface of the indented edge, the lip, and an inner surface of the cavity be an abrasive surface. The burr body may also have at least one debris vent extending therethrough.

A dental polishing instrument enabling polishing ranging from mid- to final-finish polishing of a dental restoration to be performed with one dental polishing instrument, as well as being capable of improving the efficiency of the polishing will be provided. A dental polishing instrument includes: a first whetstone layer; and a second whetstone layer, wherein the first whetstone layer and the second whetstone layer are stacked, and each of the whetstone layers includes abrasive grains (A) and a binder (B), and the whetstone layers are separable from each other.

A dental polishing instrument enabling polishing ranging from mid- to final-finish polishing of a dental restoration to be performed with one dental polishing instrument, as well as being capable of improving the efficiency of the polishing will be provided. A dental polishing instrument includes: a first whetstone layer; and a second whetstone layer, wherein the first whetstone layer and the second whetstone layer are stacked, and each of the whetstone layers includes abrasive grains (A) and a binder (B), and the whetstone layers are separable from each other.

An interdental instrument may include a handling section (handle) for manual gripping of the interdental instrument, a carrier held by the handling section, on which an interdental part (e.g. a flossette or an abrasive element) is arranged, a joint device for pivotally holding the carrier on the handling section, so that the carrier can be pivoted relative to the handling section about a pivot axis between at least two mutually angularly offset holding positions. The joint device may include two mutually opposite sliding guide surfaces which are formed on the carrier side and/or handling section side, where the pivot axis crosses the sliding guide surfaces and may be being perpendicular to the two sliding guide surfaces.

The integral restoration matrix system includes an arcuate frame having opposed upper and lower arcuate members and first and second opposed side members. The arcuate frame defines an open interior region. A matrix sheet is secured to the arcuate frame and extends across, and covers, the open interior region defined by the arcuate frame. First and second upper arcuate retaining arms are secured to, and extend from, respective upper ends of the first and second opposed side members. First and second lower arcuate retaining arms are secured to, and extend from, respective lower ends of the first and second opposed side members. A hemostatic mesh is secured to the lower arcuate member of the arcuate frame.

Disclosed is an orthodontic strip that includes: a body having a horizontal frame and a pair of vertical frames extending downward at opposite ends of the horizontal frame; a pair of holders coupled to lower ends of the pair of vertical frames, respectively; a grinding blade fixed at opposite ends thereof to the pair of holders; and a handle coupled to a side of any one of the pair of holders, wherein the holders are bent upward while surrounding a lower end of the grinding blade such that the holders surround opposite sides of the grinding blade, and the grinding blade is pressed between the holders.

Disclosed is an orthodontic strip that includes: a body having a horizontal frame and a pair of vertical frames extending downward at opposite ends of the horizontal frame; a pair of holders coupled to lower ends of the pair of vertical frames, respectively; a grinding blade fixed at opposite ends thereof to the pair of holders; and a handle coupled to a side of any one of the pair of holders, wherein the holders are bent upward while surrounding a lower end of the grinding blade such that the holders surround opposite sides of the grinding blade, and the grinding blade is pressed between the holders.

A dental prophy angle includes a housing, a driving assembly, a first limiting member, a second limiting member, and a prophy cup, where the driving assembly includes a first driving shaft and a second driving shaft; the second driving shaft comprises one end connected to the first driving shaft by a gearing connection, and the other end provided with the prophy cup; and the first limiting member is sleeved on the first driving shaft and locates between the first driving shaft and an inner wall of the housing, and the second limiting member is sleeved on the second driving shaft and locates between the second driving shaft and the inner wall of the housing, to play a position limiting role and prevent the first driving shaft from falling out. The first limiting member is in snap connection with the housing for fixation, which makes the installation simple.

The invention relates to an abrasive body (6) for a grinding tool with an abrasive layer (8), which has at least one binding agent (12) and abrasive grains (13), characterised in that thermochromic colouring agents are provided in the abrasive layer (8).

The invention relates further to a grinding tool (1) with an abrasive body (6) according to the invention and elements (5) for connecting the grinding tool (1) to a driving device for rotatingly driving the abrasive body (6).

The invention relates further to a use of the abrasive body (6) according to the invention or of the grinding tool (1) according to the invention for treating human body parts.

The invention relates to an abrasive body (6) for a grinding tool with an abrasive layer (8), which has at least one binding agent (12) and abrasive grains (13), characterised in that thermochromic colouring agents are provided in the abrasive layer (8).

The invention relates further to a grinding tool (1) with an abrasive body (6) according to the invention and elements (5) for connecting the grinding tool (1) to a driving device for rotatingly driving the abrasive body (6).

The invention relates further to a use of the abrasive body (6) according to the invention or of the grinding tool (1) according to the invention for treating human body parts.