Dental implant and head for a compaction drill

Abstract

A dental implant includes a fixture and an abutment in a body, and a head for a compaction drill is configured for implanting such an implant. The implant includes an upper abutment portion on which a denture is fixed, a fixture portion implanted in the jawbone and forming single or double threads, and a settling portion formed between the abutment portion and the fixture portion. The invention improves the stability of the implant, improves stabilization of the bone tissue affixed to the implant, effectively seals the socket from its surroundings and facilitates bonding between implant and jawbone. This is achieved because of the early healing of tissue around the implant and the greater surface area in contact with surrounding tissue. As a result, an artificial crown may be coupled with the implant during the same surgery.

Description

[0001] This is a divisional of U.S. application Ser. No. 10 / 432,627 filed Jun. 6, 2003, the contents of which are expressly incorporated by reference herein in its entireties.TECHNICAL FIELD [0002] The present invention relates to a dental implant and a bead for a compaction drill, and more particularly to a dental implant that can immediately brace artificial dental structures thereon after the implant is placed because the implant includes a fixture and an abutment in a body can be easily implanted in a jawbone by an improved structure of the fixture, and also can accomplish enhanced bonding between a bone tissue and the implant. The present invention also relates to a head for a compaction drill specially designed for the implant. BACKGROUND ART [0003] In general, a dental implant is used as an artificial root composed of a metal having the shape of the crown root implanted in the jawbone where teeth are totally or partially lost so as to form artificial crowns on the artificial ...

AI Technical Summary

Benefits of technology

[0040] The soft bone-tissue is attached to the curved shoulder having a predetermined curvature. The tissue-affixed portion of the curved shoulder to which a soft tissue is attached promotes a strong and tight bonding effect in conjunction with the adhesive layer and the mucous membrane of the mouth tightly bonded each other. The tissue-affixed portion of the curved shoulder is patterned with minute grooves having the depth of about 15 to about 25 μm and set at the interval of about 30˜50 μm. The minute grooves promote bonding with the bone tissue.

[0041] The settling portion attached to the cortex bone of the jawbone. The settling portion having the length of about 2 mm includes micro screwed grooves having the pitch of about 0.2 mm and the thread-range of about 80 to about 120°. The settling portion restrains the fixture portion from sinking.

[0042] The trapezoidal thread formed on the fixture portion increases the surface area of the fixture portion and forms an advantageous structure for stress dispersion. Double threads, having the depth of about 400 μm and the pitch of about 500 μm, are formed on the portion implanted into the soft bone-tissue, while a single thread, having the depth of about 400 μm and the pitch of about 800 μm, is formed on the portion implanted into solid bone-tissue. The bottom end of the th

Problems solved by technology

Currently, those varieties requiring only one surgery have the aesthetic disadvantage that the metal portion of the implant is exposed above the gum line.

This disadvantage does not apply in the case of those varieties requiring two surgeries, however, the inconvenience and expense of an extra surgery are disadvantages in themselves.

However, the above dental implants, currently in wide use, suffer from the disadvantage of using separate parts that are combined into a single artificial tooth.

The disadvantages of this two-step process are obvious.

Although some success has been reported with new designs that allow for connecting the abutment during the first surgery, the connection proof remains cumbersome and time-consuming.

Also, there is a problem with the upper flange portion of the fixture where it comes in contact with the cortex bone.

The process of attaching a fixture to the jawbone using a single screw with a single-thread is not easy.

This technique also reduces the life of the implant because it leaves the jawbone subjected to heat.

Also, it currently takes approximately 3 to 6 months for the bone to bond sufficiently with the implant to allow for the mounting of an artificial crown on the machined surface.

Operations mounting an artificial crown immediately after the implanting of a fixture have succeeded in non-tooth jawbone, however, the restriction remains that the quality and quantity of remaining bone must be sufficient to faci

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