Method for treating a screw-cement retained prosthesis, abutment and implant for a screw-cement retained prosthesis
First Claim
1. A method for treating a screw-cement retained prosthesis, comprising the steps of:
- providing an abutment, which comprises a joining projection formed on the lower portion of a body of the abutment and a first screw hole formed upward and downward through the body;
repositioning and inserting the joining projection into a joining groove, which is formed in an upper portion of a fixture correspondingly to the joining projection;
engaging the abutment to the fixture by using a screw corresponding to the first screw hole;
providing a prosthetic appliance including a second screw hole formed correspondingly to the first screw hole; and
bonding the prosthetic appliance and the abutment by interposing dental cement between the abutment and the prosthetic appliance.
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Accused Products
Abstract
A method for treating a screw-cement retained prosthesis, an abutment and an implant are disclosed. The method for treating the screw-cement retained prosthesis, which relates to an internal implant, comprises the steps of providing an abutment comprising a joining projection, repositioning the joining projection to a joining groove formed in the upper portion of a fixture, engaging the abutment to the fixture by using a screw, providing a prosthetic appliance including a screw hole, and bonding the prosthetic appliance and the abutment by interposing dental cement between the abutment and the prosthetic appliance. The present invention includes all of the advantages of screw retained prostheses and cement retained prostheses and at the same time can solve the disadvantages thereof. Using a leading inclined surface formed in the joining projection, the abutment and prosthetic appliance are easily separated from and remounted to the fixture.
35 Citations
19 Claims
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1. A method for treating a screw-cement retained prosthesis, comprising the steps of:
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providing an abutment, which comprises a joining projection formed on the lower portion of a body of the abutment and a first screw hole formed upward and downward through the body;
repositioning and inserting the joining projection into a joining groove, which is formed in an upper portion of a fixture correspondingly to the joining projection;
engaging the abutment to the fixture by using a screw corresponding to the first screw hole;
providing a prosthetic appliance including a second screw hole formed correspondingly to the first screw hole; and
bonding the prosthetic appliance and the abutment by interposing dental cement between the abutment and the prosthetic appliance. - View Dependent Claims (2, 3, 4, 5)
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6. A method for treating a screw-cement retained prosthesis, comprising the steps of:
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providing an implant wherein an abutment, which comprises a joining projection formed in the lower portion of an abutment body and a first screw hole formed upward and downward through the body, is engaged to a fixture with a screw, and a prosthetic appliance is bonded to the abutment;
forming a second screw hole in the prosthetic appliance correspondingly to the first screw hole; and
separating the prosthetic appliance and abutment from the fixture by loosening the screw through the first and the second screw holes. - View Dependent Claims (7, 8)
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9. An abutment for a screw-cement retained prosthesis, comprising:
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a body, which includes a bonding portion bonded to a prosthetic appliance and is formed with a screw hole upward and downward through the body; and
a joining projection, the joining projection formed in the lower portion of the body, and the joining projection comprising a sticking portion, which is entirely or partially stuck to a joining groove formed in the upper portion of a fixture to support the body, an anti-rotating portion, which is formed adjacently to the sticking portion to limit a relative rotation of the body with respect to the fixture, and a leading inclined surface, which is formed with the sticking portion or the anti-rotating portion partially removed, wherein due to the leading inclined surface, an allowance space is formed between the joining projection and the joining groove, and due to the allowance space, the prosthetic appliance and body are easily separated from the fixture. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An implant for a screw-cement retained prosthesis, comprising:
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a fixture wherein a joining groove is formed in the upper portion of the fixture; and
an abutment comprising;
a body, which includes a bonding portion bonded to a prosthetic appliance and is formed with a screw hole upward and downward through the body; and
a joining projection, the joining projection formed in the lower portion of the body, and the joining projection comprising a sticking portion, which is entirely or partially stuck to the joining groove to support the body, an anti-rotating portion, which is formed adjacently to the sticking portion to limit a relative rotation of the body with respect to the fixture, and a leading inclined surface, which is formed with the sticking portion or the anti-rotating portion partially removed, wherein due to the leading inclined surface, an allowance space is formed between the joining projection and the joining groove, and due to the allowance space, the prosthetic appliance and body are easily separated from the fixture. - View Dependent Claims (18, 19)
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Specification