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 Title: |
US4173219:
Disposable dental tray
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Lentine, Frank N.; Taylor, MI
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| Assignee: |
Sybron Corporation, Rochester, NY
other patents from SYBRON CORPORATION (555875) (approx. 446)
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| Published / Filed: |
1979-11-06
/ 1978-01-30
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| Application Number: |
US1978000873269
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| IPC Code: |
Advanced:
A61C 19/06;
Core:
A61C 19/00;
IPC-7:
A61M 35/00;
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| ECLA Code: |
A61C19/06B;
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| U.S. Class: |
Current:
604/077;
128/861;
Original:
128/260;
128/136;
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| Field of Search: |
128/136,260,208
032/40 R,58,14 B,DIG. 4
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| Priority Number: |
| 1978-01-30 |
US1978000873269 |
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| Abstract: |
Disclosed is a full dental tray for use in applying a fluoride gel simultaneously to both the upper and lower teeth. The tray is a disposable, laminated structure including a hydrophilic foam interior formed and heat bonded to a polyethylene foam substrate. The tray has upper and lower portions which are hinged together and are contoured to properly accommodate the particular tooth structure of the posterior and anterior teeth, and the general geometry of both the upper and lower jaws.
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| Attorney, Agent or Firm: |
Roessel, Theodore B. ;
Aceto, Roger ;
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| Primary / Asst. Examiners: |
Recla, Henry J.;
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 5 claims |
Having described the invention in detail, what is claimed as new is:
1. A dental tray for applying medicaments and the like to teeth comprising:
- (a) an upper tray portion for the upper dentition and a lower tray portion for the lower dentition;
- (b) each of said tray portions including an outer shell of closed cell polyethylene foam, said outer shell having a generally U-shaped base approximating the curve of the dental arch and integrally formed buccal, lingual and rear walls upstanding from said base so as to form a closed medicament holding trough;
- (c) said base being flat in cross section from the posterior ends of said U-shape to the bicuspid region and concave from the bicuspid region to the anterior end;
- (d) said buccal wall being generally normal to said base from the anterior to the posterior ends;
- (e) said lingual wall being generally normal to said base at the posterior ends and inclined with respect to said base in a direction away form said buccal wall at the anterior end, the angle of inclination of said upper tray lingual wall being greater than the angle of inclination of said lower tray lingual wall;
- (f) said buccal and lingual walls being lower at the posterior than at the anterior ends so as to form a trough which increases in depth from the posterior to anterior ends;
- (g) hinge members extending between and connected to the posterior ends of said tray portions connecting said tray portions together;
- (h) a layer of open cell polyurethane hydrophillic foam bonded to and lining the entire inner surface of said tray portions;
- (i) a handle extending outwardly from the upper edge of each buccal wall at the anterior endthereof.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 57 U.S. patent(s) that reference this one
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