Dental component with through hole
The disclosure presents a method of manufacturing a dental component ( 110; 210; 410; 510 ) with an angulated channel ( 170; 270; 470; 570 ) and for being mounted to a dental implant is disclosed. The dental component has a coronal side ( 130; 230; 430; 530 ) and an apical side ( 120; 220; 420; 520 ). The method comprises the steps of forming a first hole ( 140; 240; 340; 440 ) and a second hole ( 150; 250; 450; 550 ). The first hole substantially extends along a first axis ( 141; 241; 341; 441; 541 ) and is formed as a blind hole having an end region ( 143; 243; 343; 443; 543 ). The second hole substantially extends along a second axis ( 151; 251; 451; 551 ), wherein the entrance to the second hole is located coronally to and intersecting the end region of the first hole for creating the angulated channel. The first axis and the second axis are inclined with respect to each other. At least a part of the end region of the first hole is kept as a part of the angulated channel. The disclosure also relates to dental component that is preferably manufactured by this method and to a method of designing a dental component with an angulated channel using CAD/CAM.
1 . A method of manufacturing a dental component with an angulated channel for being mounted to a dental implant, wherein the dental component has a coronal side and an apical side, the method comprising the steps:
forming a first hole substantially extending along a first axis, the first hole having an end region away from the apical side;
forming a second hole substantially extending along a second axis, an entrance to the second hole being located coronally to the end region of the first hole,
wherein the first hole and the second hole are formed to intersect each other for creating an angulated channel,
wherein the first axis and the second axis are inclined with respect to each other,
wherein at least a part of the end region of the first hole is kept as a part of the angulated channel,
wherein forming the first hole includes forming a profile of the end region such that, in a cross-section extending along the first axis, the profile includes multiple curved concave portions including a first curved concave portion having a first diameter and a second curved concave portion having a second diameter, and
wherein the first diameter is greater than the second diameter and the first diameter is closer to the apical side along the first axis than the second diameter.
2 . The method of claim 1 , wherein the end region of the first hole is formed such that it is located coronally to a point of intersection between the first axis and the second axis.
3 . The method of claim 1 , wherein at least a section of the multiple curved concave portions forms a part of the angulated channel of the dental component.
4 . The method of claim 1 , wherein the first hole is formed before the second hole.
5 . The method of claim 1 , wherein an angle of inclination between the first and second axes is greater than 0° and equal to or less than 60°.
6 . The method of claim 1 , wherein an angle of inclination between the first and second axes is greater than 5° and equal to or less than 30°.
7 . The method of claim 1 , wherein a rotating tool performs a wobbling motion while creating the first hole by guiding the rotating tool along at least one path about the first axis, wherein a longitudinal axis of the rotating tool is arranged at an angle to the first axis.
8 . The method of claim 1 , wherein a rotating tool performs a wobbling motion while creating the first hole by guiding the rotating tool along at least one path about the first axis, wherein a longitudinal axis of the rotating tool is arranged at a constant angle to the first axis.
9 . The method of claim 1 , wherein the first hole is formed by orbital milling along at least one path about the first axis, wherein the rotating tool is oriented parallel to the first axis.
10 . The method of claim 1 , wherein the blank used for manufacturing the dental component is a green body made of a ceramic material.
11 . A dental component for being mounted to a dental implant comprising:
an apical side and a coronal side,
a first hole substantially extending along a first axis, the first hole having an end region away from the apical side,
a second hole substantially extending along a second axis, an entrance to the second hole being located coronally to the end region of the first hole,
wherein the first hole and the second hole are formed to intersect each other creating an angulated channel,
wherein the first axis and the second axis are inclined with respect to each other,
wherein at least a part of the end region of the first hole is kept as part of the angulated channel,
wherein in a cross-section extending along the first axis, a profile of the end region comprises multiple curved concave portions including a first curved concave portion having a first diameter and a second curved concave portion having a second diameter, and
wherein the first diameter is greater than the second diameter and the first diameter is closer to the apical side along the first axis than the second diameter.
12 . The dental component of claim 11 , wherein a diameter of the first hole is equal to or larger than a diameter of the second hole.
13 . The dental component of claim 11 , wherein the first axis and/or the second axis is straight.
14 . The dental component of claim 11 , wherein the end region of the first hole has a decreasing cross-section perpendicular to the first axis.
15 . The dental component of claim 11 , wherein the angulated channel of the dental component has a conical screw seat.
16 . The dental component of claim 11 , wherein the end region of the first hole is located coronally to a point of intersection between the first axis and the second axis.
17 . A method of designing a virtual dental component using CAD/CAM, the method comprising the steps:
providing geometric data of a dental component,
creating a first hole geometry in the dental component, wherein the first hole extends substantially along a first axis the first hole having an end region away from the apical side,
creating a second hole geometry in the dental component, wherein the second hole extends substantially along a second axis, an entrance of the second hole being located coronally to the end region of the first hole,
wherein the first hole and the second hole are created to intersect each other for creating an angulated channel,
wherein the first axis and the second axis are inclined with respect to each other,
wherein at least a part of the end region of the first hole is kept as a part of the angulated channel,
wherein in a cross-section extending along the first axis, a profile of the end region comprises multiple curved concave portions including a first curved concave portion having a first diameter and a second curved concave portion having a second diameter, and
wherein the first diameter is greater than the second diameter and the first diameter is closer to the apical side along the first axis than the second diameter.
18 . The method of designing the virtual dental component according to claim 17 , wherein the end region of the first hole is created such that it is located coronally to a point of intersection between the first axis and the second axis.
19 . A dental component manufactured according to claim 1 .