Deeper parts are accented with steel or carbide burs and mounted stones. This leaves a shiny surface which is scratched and cut and therefore not too desirable. Next, the surfaces are semi-finished with an abrasive material contained in rubber. This is applied with a rubber wheel. Finally, a cloth wheel is used to produce a high shine by polishing with tripoli and gold rouge. The problem with this approach is that the abrasive usually cannot be properly worked to smooth out the cut and scratched surface.
The rubber points and wheels which are used in dental handpieces are totally inadequate to reach the small tight areas which have been accentuated or scored by the steel and carbide burs and mounted stones. The result is that the higher surfaces tend to be ground away without achieving progress toward polishing the deep areas.
Thus, the good occlusion can be destroyed without really accomplishing an adequate polish. In fact, in the prior art this has constituted such a problem that the polishing process may consume 90 percent of the time required to finish and polish a crown or bridge gold restoration.
The rotary dental burnisher contains a shank portion that tapers down and connects to a fluted burnishing head. The rotary burnishing head are polished, rounded, and elongated, and has ridges on the surface.
It has been found that a burnisher produces the desired polished finish in one or two minutes without removing any gold from the restoration. In this way, deep occlusal anatomy can be established to an extent heretofore impossible. A polish far superior than the prior art results and the good occlusion established in the rough finishing is not destroyed. No cutting edges are present and no abrasives are required. Each insert A and B fits into a corresponding hole located on each removable forcep portion A and B to secure the removable forcep portions A and B to the rest of the forcep legs A and B.
The removable forcep portions A and B, respectively, have holes or cavities A, B defined therein that are shaped to receive the inserts A, B. When attaching the removable forcep portions A and B, the holes A and B may allow the two inserts A and B, respectively, to be pushed into them, so that that the removable forcep portions A and B are locked into place.
The assembled dental tool resembles the unitary dental tool shown in FIGS. As shown by FIGS. For example, the orientation in which the removable forcep portions A and B, when secured to the rest of the forcep legs A and B, ensure that the grips face outwards towards the hand of the user, to aid the user in gripping the forcep properly.
In the example, the grips face outward when the dental tool is assembled. Thus, when the removable forcep portions A and B are secured onto the rest of the dental tool , they are positioned to be mirror images of each other.
Since they are mirror images of each other, the removable forcep portion A, once flipped about the axis shown in dotted lines in FIG.
Similarly, the removable forcep portion B, once flipped about the axis shown in dotted lines in FIG. In an embodiment in which the forcep portions A and B have been attached to forcep legs B and A, respectively, it follows that the when the dental tool is laid on its bottom side, the pointed ends of the forcep point downwards rather than upwards.
In an example embodiment, the holes A, B and the inserts A, B are shaped similar to half-moons. However, other shapes that facilitate similar principles as noted above are also applicable. In another example embodiment, other attachment mechanisms between the removable forcep portions and the forcep legs may be used.
For example, clips, snaps, magnetic material and other retention mechanisms may be used. In another example, the inserts are on the removable forcep portions and the corresponding holes are defined within the forcep legs. The penlight holder is positioned at the joint between the forcep portion and the burnisher tool portion , and receives and secures a penlight in the circular space defined by the penlight holder The penlight holder is positioned at the joint because it allows the penlight, when attached to the dental tool via the penlight holder , to rest comfortably in the nook that is formed in the user's hand when gripping the dental tool In FIG.
In another example, the penlight holder and the entire dental tool, including the forcep legs, are a unitary body. Alternatively, FIG. In this embodiment, the dental tool defines a pair of holes and the penlight holder has a set of corresponding prongs, which may fit into the two holes so that the penlight holder can be secured onto the dental tool It will be appreciated that other attaching mechanisms e. In both embodiments of FIGS. In this way, the penlight can be used to provide extra visibility inside of a patient's mouth during different stages of the filling process, especially in settings in which an overhead light source is not readily available.
It will be appreciated that there may be different sizes of the penlight holder, so as to accommodate different diameters of penlights. These different sizes of penlight holders may be manufactured using conventional manufacturing methods, or by 3 D printing. For example, the penlight holder can be easily customized with 3 D printing to fit a specific penlight diameter. When the set of prongs are inserted into the holes , the penlight holder can be secured onto the joint of the dental tool The cross section of the prongs , and therefore the shape of the holes , may be of a rounded rectangle geometry, as shown in the embodiments.
They may also be of a different shape, as long as the prongs correspond to the shape of the holes so that the prongs can fit into the holes In this embodiment. Similar to FIGS. In an example embodiment, other attachment mechanisms for the penlight holder may be used in alternative to prongs and holes, including, magnets, clips, snaps, Velcro, a friction-fit mechanism, or combinations thereof.
Since the penlight holder is removable, it can be inserted from the top as shown in this figure, or from the bottom. Being able to attach the penlight holder to the dental tool on the top or the bottom may be useful as the user inspects different parts of the mouth. For example, the tooth of interest may be a top molar tooth, in which case it may be advantageous to attach the penlight holder , and therefore the penlight, on the top side.
If, however, the tooth of interest is a bottom tooth, it may be advantageous to attach the penlight holder , and therefore the penlight, on the bottom side for better visibility of the tooth of interest. For example, in FIG. By contrast, in FIG. Turning to FIG. It includes features that are adapted to a specific penlight, which includes a pressable clip to turn on and turn off the penlight.
The holder includes two prongs and that define a connected surface for holding the penlight. The holder also includes protruding structures and that protrude from the same side surface of the prongs and Each of these protruding structures and respectively provide ledges or shoulder surfaces and The shoulder surface at a first end is initially distanced below the connected surface and then curves upwards at a second end to meet the connected surface The first ends of each of the shoulder surfaces and define there between a gap The penlight has a body with a clip that protrudes from the body.
The clip is used to clip the penlight to a person's shirt or a clipboard. The clip includes a metal arm that is able to conduct electricity.
The end of the arm includes a clip head When the clip head is pressed towards the body , the clip head passes through an opening in the body and makes physical contact with an electric contact surface , which completes an electric circuit to turn on the light. Upon removing the pressing force, the clip head loses contact with the electric contact surface , and the light turns off. In a rest position, the clip is oriented in the holder so that the clip head rests in the gap In this position, the clip head is not in contact with the electric contact surface, and the light remains off.
However, a rotation movement A of the penlight along the penlight's major axis causes the shoulder surface of the protruding structure to press the clip head against the electronic contact surface, as shown by the resulting movement B in FIG. As a result, the rotation of the penlight in the pen holder turns on the penlight. A rotation in the reverse direction will turn off the penlight.
Below are example general embodiments and example aspects of a multi-functional dental tool. Item specifics. Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is Read more about the condition Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended.
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