Dental appliance

1. A dental appliance for improving the appearance of a patient's teeth, said dental appliance comprising:

a plurality of adjacent simulated teeth constructed from an acetyl resin having a desired visual impression, which includes an opaque color selected to provide the appearance of teeth and a selected contour, and an opening adapted to receive the patient's teeth when worn;

said simulated teeth including an inner facial surface adapted to engage a facial surface of the patient's opposing teeth, a visible outer facial surface adapted to oppose the patient's cheek, an outer lingual surface adapted to oppose the patient's tongue, and at least two retentive points that fit under the contours of said patient's teeth to secure said dental appliance to said patient's teeth without the use of adhesives or cement;

wherein a configuration of the inner facial surface of said simulated teeth conforms to a configuration of the facial surface of the patient's opposing teeth, and wherein a configuration of a portion of the visible outer facial surface of said simulated teeth conforms to a predetermined surface configuration different from a configuration of the opposing facial surface of the patient's teeth; and

said at least two retentive points which do not impinge into said patient's gingival tissue when said retentive points secure said dental appliance onto said patient's teeth.

2. The dental appliance recited in claim 1 , wherein said opening is defined between said inner facial surface and said inner lingual surface.

3. The dental appliance recited in claim 1 , wherein said plurality of simulated teeth are contiguous to each other.

4. The dental appliance recited in claim 1 , wherein the distance between the inner facial surface and the visible outer facial surface varies between adjacent simulated teeth.

5. The dental appliance recited in claim 1 , wherein said plurality of simulated teeth are contiguous to each other, and wherein the distance between the inner facial surface and the visible outer facial surface varies between adjacent simulated tooth.

6. The dental appliance recited in claim 1 , wherein the distance between the inner facial surface and the visible outer facial surface varies progressively over the plurality of adjacent simulated teeth.

7. The dental appliance recited in claim 6 , wherein the distance between said inner facial surface and inner lingual surface varies.

8. A dental appliance for changing the appearance of a patient's set of teeth without the need to alter the dental structure of the patient's real teeth:

said dental appliance is constructed of an acetyl resin and comprises:

a continuous wall having a first surface and a second surface;

said first surface is adapted to engage the facial and lingual surfaces of a patient's teeth;

said second surface comprising a visible outer surface;

wherein said second surface has a desired visual impression including a selected opaque color and a selected contour for changing the appearance of the patient's set of teeth, and said first surface has a configuration conforming to a configuration of the surface of the patient's teeth; and

said continuous wall further comprises at least two retention points which fit under the contours of said patient's teeth and do not impinge on said patient's gingival tissue when said retentive points secure said dental appliance onto said patient's teeth without the use of adhesives or cement.

9. The dental appliance recited in claim 8 , wherein the thickness between said first and second surfaces progressively varies.