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US 2019/0159865 A1Published application
Composite restoration condenser with rolling ball tip
AssigneeKing Abdulaziz University
InventorFahad Ibrahim Fatiny
Life of this patent
Estimating the term…
Abstract
A dental instrument with an elongated tip housing a ball within a socket. The exposed surface of the ball may be pressed against a restorative material on a tooth surface in order to evenly distribute the restorative material without incorporating air bubbles. A dental instrument may have a second elongated tip housing a ball on an opposing end. The elongated tip housing the ball may be removably attached or may be rotatable.
Claims19
1:
- A dental instrument, comprising:
- a handle with a working end;
- a curved and/or angled shank extending from the working end;
- an elongated tip with a socket, wherein the elongated tip is mounted on the curved and/or angled shank, and the elongated tin is frustoconical with a frustoconical surface having a larger diameter oriented towards the ball;
- a ball rotatably housed within the socket, the ball having an exposed spherical surface configured to contact a dental composite;
- a second curved and/or angled shank extending from an end of the handle distal to the working end, having a second elongated tip with a second socket;
- and
- a second ball rotatably housed within the second socket, having a second exposed spherical surface,
- wherein the ball and the second ball have unequal diameters, and
- wherein an end of the elongated tip connected to the curved and/or angled shank has a beveled edge expanding in a direction towards the ball.
7 more elements
2-3. (canceled)
4:
- The dental instrument of claim 1, wherein the ball has an exposed surface area fraction of 0.25 to 0.42 relative to a total surface area of the ball.
5:
- The dental instrument of claim 1, wherein a ratio of a diameter of the ball to a largest outer diameter of the elongated tip is 7:10-19:20.
6:
- The dental instrument of claim 1, wherein a ratio of the smallest diameter of the curved and/or angled shank to the largest outer diameter of the elongated tip is 3:10-4:10.
7:
- The dental instrument of claim 1, wherein the elongated tip is rotatably attached to the curved and/or angled shank.
8:
- The dental instrument of claim 1, wherein the elongated tip is removably attached to the curved and/or angled shank.
(canceled)
10:
- The dental instrument of claim 1, wherein a central axis of the elongated tip forms an angle of 0°-90° with a central axis of the handle.
11:
- The dental instrument of claim 10, wherein a central axis of the elongated tip forms an angle of 50°-75° with a central axis of the handle.
12:
- The dental instrument of claim 1, further comprising a fluid line traversing from the socket to the handle.
13:
- The dental instrument of claim 1, wherein the socket has no more than one opening.
(canceled)
15:
- The dental instrument of claim 1, wherein the handle, the curved and/or angled shank, the elongated tip, and/or the ball comprises metal.
16:
- The dental instrument of claim 1, wherein the handle, the curved and/or angled shank, the elongated tip, and/or the ball comprises a plastic which contains metal, glass, ceramic, carbon, or polymer fibers.
17:
- The dental instrument of claim 1, wherein the handle, the curved and/or angled shank, the elongated tip, and/or the ball is made of, contains, or is coated with a non-stick material.
18:
- The dental instrument of claim 1, wherein the handle, the curved and/or angled shank, the elongated tip, and/or the ball is made of, contains, or is coated with at least one of a silicone, a thermoplastic elastomer, or a polyurethane.
19:
- The dental instrument of claim 1 wherein the handle, the curved and/or angled shank, the elongated tip, and/or the ball is made of, contains, or is coated with at least one material having a Shore A hardness of 20-80, as determined by ASTM D2240 00.
20:
- A method for distributing a restorative material on a surface of a tooth, comprising:
- applying the restorative material to the surface of the tooth to produce an applied restorative material and
- distributing the applied restorative material with the dental instrument of claim 1 by rolling the ball on the applied restorative material.
Dependencies are inferred from the claim text.