Submergible screw-type dental implant and method of utilization
First Claim
1. An implant portion of an oral implant designed for supporting an artificial tooth structure comprising:
- an implant body having threads over at least part of its exterior surface and being adapted to be threaded into an opening in a bone of a patient in the vicinity of the occlusal plane, which bone has been exposed by an incision in the covering fibromucosal tissue; and
at least one channel formed such that it at least extends through the threads on the body for directing bone chips toward a base portion of the opening in the bone, one edge of the threads at one side of the channel being substantially at a right angle to the circumferential direction of the threads and the other edge of the threads at the other side of the channel being at an oblique angle to the circumferential direction of the threads, said one edge being adapted (i) to promote self-tapping of the threads in the bone, (ii) to shave off pieces of bone during threading of the implant portion into the bone, and (iii) to direct the pieces of bone into the channel such that the channel may direct pieces toward the base portion of the opening.
3 Assignments
0 Petitions
Accused Products
Abstract
A submergible screw-type implant includes a longitudinal channel which directs bone chips towards the base of a bore in the patient'"'"'s bone in which the implant is installed. These bone chips promote autogenous rapid regrowth of new bone to securely anchor the implant in place. In order to be able to position the implant at the most advantageous angle at the edentulous site, angled abutments for supporting an artificial tooth structure or angularly adjustable abutments are provided. A method of installing the angularly adjustable oral implant involves setting the abutment portion at the proper angle for alignment of the artificial tooth and subsequently locking it in that position.
279 Citations
33 Claims
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1. An implant portion of an oral implant designed for supporting an artificial tooth structure comprising:
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an implant body having threads over at least part of its exterior surface and being adapted to be threaded into an opening in a bone of a patient in the vicinity of the occlusal plane, which bone has been exposed by an incision in the covering fibromucosal tissue; and at least one channel formed such that it at least extends through the threads on the body for directing bone chips toward a base portion of the opening in the bone, one edge of the threads at one side of the channel being substantially at a right angle to the circumferential direction of the threads and the other edge of the threads at the other side of the channel being at an oblique angle to the circumferential direction of the threads, said one edge being adapted (i) to promote self-tapping of the threads in the bone, (ii) to shave off pieces of bone during threading of the implant portion into the bone, and (iii) to direct the pieces of bone into the channel such that the channel may direct pieces toward the base portion of the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An oral implant for supporting an artificial tooth structure comprising:
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an implant portion adapted to be fitted in an opening in a bone of a patient in the vicinity of the occlusal plane, which bone has been exposed by an incision in the covering of fibromucosal tissue; a support for an artificial tooth structure; a threaded angular shaft connected at one end to an outer end of said implant portion which is directed away from the opening in the bone when the implant portion is installed therein, the other end of the shaft being at a preselected angle to the one end connected to the implant portion and being adapted for threaded engagement with said support; and a beveled transition collar located about the shaft between the upper end of the implant portion and the support, the collar having one end surface at a right angle to the collar axis and the other end surface being at an angle with respect to the one end surface which is substantially the same angle as the shaft angle, threading of the abutment onto the shaft being effective to cause the abutment and the implant portion to frictionally engage the collar, thereby impeding disconnection of the shaft and abutment from the implant portion. - View Dependent Claims (15, 16)
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17. An oral implant for supporting an artificial tooth structure comprising:
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an implant portion adapted to be fitted in an opening in a bone of a patient in the vicinity of the occlusal plane, which bone has been exposed by an incision in the covering fibromucosal tissue, said implant portion including an implant body having threads extending over at least part of its exterior surface and being adapted to be threaded into the opening in the bone of the patient in the vicinity of the occlusal plane, and at least one channel formed such that it at least extends through the threads on the body for directing bone chips toward a base portion of the opening in the bone, one edge of the threads at one side of the channel being substantially at a right angle to the circumferential direction of the threads and the other edge of the threads at the other side of the channel being at an obtuse angle to the circumferential direction of the threads; and an abutment for supporting an artificial tooth structure, said abutment including ball and socket joint means for connecting said implant portion to said artificial tooth structure at selected angular positions with respect to each other, said ball and socket joint means including a generally spherical ball and socket casing surrounding a portion of the ball sufficient to retain the ball in the socket casing and locking means for locking the implant portion and abutment at the selecting angular position.
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18. An oral implant for supporting an artificial tooth structure comprising:
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an implant portion adapted to be fitted in an opening in a bone of a patient in the vicinity of the occlusal plane, which bone has been exposed by an incision in the covering fibromucosal tissue; and an abutment for supporting an artificial tooth structure, said abutment including ball and sooket joint means for connecting said implant portion to said artificial tooth structure at selected angular positions with respect to each other, said ball and socket joint means including a generally spherical ball and a socket casing surrounding a portion of the ball sufficient to retain the ball in the socket casing, and locking means for locking the implant portion and abutment at the selected angular position, the socket casing includes an inner casing with a generally hemispherical surface for engaging one hemisphere of the ball and an outer casing which is attachable to the inner casing and engages portions of the other hemisphere of the ball, the inner casing having an opening at one side which is larger than the ball and the outer casing acting to at least partially close that opening when engaged with the inner opening so as to trap the ball between the casings. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of installing an angularly adjustable oral implant in a patient'"'"'s bone in an edentulous area adjacent the occlusal plane, comprising the steps of
exposing the bone by displacing the covering tissue; -
forming an opening in the bone at an angle to the plane defining the path of alignment of other teeth on either side of the edentulous area, said angle being such as to penetrate the thickest portion of the good available bone at the area; installing an implant portion in the opening; positioning a ball in an outer casing of a socket of a ball and socket joint, which casing is sufficiently open at one side to receive the ball without bending, said outer casing having a generally hemispherical surface for contacting the ball; engaging an inner casing of the socket with the outer casing to trap the ball in the socket, said inner casing having a generally hemispherical surface for contacting the ball; fastening said ball and socket joint to said implant portion; connecting an abutment for supporting an artificial tooth structure to the ball and socket joint; adjusting the abutment such that the artificial tooth structure is aligned with the plane defining the plane alignment of the other teeth; and locking the abutment means against further adjustment by locking the ball and socket joint. - View Dependent Claims (30, 31, 32, 33)
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Specification