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Anatomical restoration dental implant system with interlockable various shaped healing cap assembly and matching abutment member
| Details |
Inventors: Daftary, Fereidoun;
Assignee:
Primary Examiner: Lucchesi; Nicholas D.
Assistant Examiner:
Attorney, Agent or Firm: Rozsa; Thomas I., Chen; Tony D.
The present invention is an anatomical restoration dental implant system with an interlockable various shaped healing cap assembly and a matching abutment member. The healing cap assembly includes an integral bolt member which has a widened head segment and an elongated shaft segment. The healing cap assembly also includes a healing cap member which has a divergent body with a larger rounded triangle shaped end. The healing cap member also has a stepped interior bore with threaded section offset from that of the bolt member so that the healing cap member and the bolt member are interlockable. The present invention also comprises a matching abutment member for supporting a tooth analog with a rounded triangle shaped root. The abutment member has a bolt segment which is identical to the bolt member of the healing cap assembly, and a frusto-conical shaped head segment. The large end of the frusto-conical shaped head segment of the abutment member is circular shaped and smaller than the rounded triangle shaped end of the healing cap member, such that when the abutment member is attached to the healing cap member, a rounded triangle shaped shoulder is created for matching perfectly with the rounded triangle shaped root of the tooth analog. |
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DETAILED DESCRIPTION The present invention is an anatomical restoration dental implant system with an interlockable various shaped healing cap assembly and a matching abutment member.
It is known that one of the common features of all existing anatomical restoration dental implant systems, including the '111 Patent, the '619 Patent and the '372 Patent, is that once the abutment 112 is in place, it provides a circular shoulder 118 around the abutment 112 for a tooth analogue 102.
In practicing anatomical restoration dental implant surgeries, the inventor of the present invention has discovered that, when the root of the tooth analogue is oval or elliptical instead of round or circular, it will not match perfectly with the circular shoulder around the abutment.
As shown in FIG.
3, when the bottom end or root of the tooth analogue 102 is elliptical, it will not fully cover the circular shoulder 118.
In other words, the bottom end surface of the tooth analogue 102 is often not a perfect circle but an ellipse.
While the diameter A of the long-axis of the ellipse is matching the diameter D of the circular shoulder 118, the diameter B of the short-axis of the ellipse is not.
The result of this mismatching is shown in FIG.
4, which is observed at a 90 degree angle from that of FIG.
3.
As shown in FIGS.
3 and 4, there will be two opposite narrow spaces 120 left between the tooth analogue 102 and the gingival tissues 108.
This creates a serious problem because it will take a long period of time for the gingival tissues 108 to recover and heal around the tooth analogue 102 to fill the two narrow spaces, and meanwhile food debris and bacteria may be collected within the spaces, which in turn will impede the complete healing of the gingival tissues and increases the chance of causing infectious diseases.
Another problem presented by the mismatch is shown in FIG.
5, which is an illustrative diagram of a patient's oral cavity.
Suppose two tooth analogues 122 and 124 are going to be positioned next to each other between the patient's tongue 126 and the interior surface 128 of the patient's cheek
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