 |
|
|
|
|
|
 Title: |
US4798534:
Method of making a dental appliance
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Breads, Peter R.; Buffalo, NY
|
| Assignee: |
Great Lakes Orthodontic Laboratories Inc., Tonawanda, NY
other patents from GREAT LAKES ORTHODONTIC LABORATORY INC. (231570) (approx. 3)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1989-01-17
/ 1986-10-24
|
| Application Number: |
US1986000922758
|
| IPC Code: |
Advanced:
A61C 7/00;
A61C 13/00;
Core:
more...
IPC-7:
A61C 3/00;
|
| U.S. Class: |
Current:
433/006;
433/213;
Original:
433/006;
433/213;
|
| Field of Search: |
433/006,213,34
|
| Priority Number: |
| 1984-08-03 |
US1984000637577 |
|
| Abstract: |
A method of making a dental appliance of the type having a plastic body portion and auxiliary members which extend from the body portion. The method utilizes a dental model formed from an impression taken from the mouth of a patient and includes a step of positioning the auxiliary member on said model so that a portion of the auxiliary member is spaced from a surface of the model. A heated blank of thermoplastic material is then applied to the model and shaped to conform to the shape of the model. Because a selected portion of the auxiliary member is spaced from the model surface, the heated thermoplastic material flows around the selected portion during the shaping process. The selected portion of the auxiliary member is thereby substantially encapsulated in the thermoplastic material and, when the thermoplastic material is allowed to cool, the auxiliary member is securely anchored within the plastic material.
|
| Attorney, Agent or Firm: |
Christel, Bean & Linihan ;
|
| Primary / Asst. Examiners: |
Wilson, John J.;
|
| INPADOC Legal Status: |
Show legal status actions
|
|
|
|
|
|
|
| Parent Case: |
This application is a continuation, of application Ser. No. 637,577, filed Aug. 3, 1984 now abandoned.
|
| Family: |
None
|
First Claim:
Show all 9 claims |
I claim:
1. A method of making a dental appliance comprising:
- providing a dental model formed from an impression taken from the mouth of the patient, said model including a teeth simulating portion and a tissue simulating portion;
- positioning an auxiliary member in relationship to said model so that a substantial and continuous portion of said auxiliary member is spaced a predetermined distance from a surface of said model along said tissue simulating portion and another portion of the auxiliary member acts on said tissue simulating portion of said model to maintain the spacing of said substantial and continuous portion from said model surface along said tissue simulating portion so that a gap separates said substantial and continuous portion from said model surface along said tissue simulating portion, said substantial and continuous portion being uncoated;
- applying only heated thermoplastic material to said model so as to overlie said model and said auxiliary member, said thermoplastic material being pliable while in its heated condition;
- shaping said heated thermoplastic material so that said material conforms to the shape of said model and portions of said material are urged to flow around said spaced portion of said auxiliary member and join together to encapsulate said spaced portion for a substantial distance along its length, said thermoplastic material being of the type which normally must be urged into said gap separating said substantial and continuous portion from said model surface; and
- permitting said thermoplastic material to cool to a hardened condition whereby said auxiliary member is firmly secured to the cooled thermoplastic material.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 128 U.S. patent(s) that reference this one
|
|
