Dental impression tray

A dental impression tray comprising:

• a pair of arcuate walls arranged in parallel spaced-apart relationship defining a working area between opposing wall surfaces and each wall of said pair having opposite ends;
• an impression material support membrane disposed in said working area and having opposite edge marginal regions attached to said pair of walls so as to divide said working area into an upper section and a lower section;
• impression material retaining means carried on said wall opposing surfaces;
• said retaining means comprising a plurality of ribs integral with each of said opposing wall surfaces respectively;
• said pair of walls are of a given dimensional height defined between upper and lower edges thereof;
• and
• said ribs having a dimensional height greater than said dimensional height of said walls so as to extend beyond said wall upper and lower edges.

A dental impression tray comprising:

• a pair of arcuate walls arranged in parallel spaced-apart relationship defining a working area between opposing wall surfaces and each wall of said pair having opposite ends;
• an impression material support membrane disposed in said working area and having opposite edge marginal regions attached to said pair of walls so as to divide said working area into an upper section and a lower section;
• impression material retaining means carried on said wall opposing surfaces;
• said retaining means comprising a plurality of ribs integral with each of said opposing wall surfaces respectively;
• and
• said support membrane includes a sheet of plastic including by a fibrous material on opposite sides of said plastic sheet.

A dental impression tray providing comfort to the patient and that is non-injurious comprising:

• a pair of arcuate walls arranged in parallel spaced-apart relationship defining a work area between opposing wall surfaces;
• an impression material support membrane disposed across said work area and having opposite edge marginal regions attached to said pair of walls so as to divide said work area into an upper section and a lower section;
• impression material retaining means carried on the opposing wall surfaces of said pair of walls comprising a plurality of spaced-apart ribs integrally formed with each of said walls respectively;
• said pair of walls include opposite ends defining open ends of said work area respectively in spaced-apart relationship;
• and
• said retaining means further includes a wire extending through said plurality of ribs engageable with said impression material.

A dental impression tray providing comfort to the patient and that is non-injurious comprising:

• a pair of arcuate walls arranged in parallel spaced-apart relationship defining a work area between opposing wall surfaces;
• an impression material support membrane disposed across said work area and having opposite edge marginal regions attached to said pair of walls so as to divide said work area into an upper section and a lower section;
• impression material retaining means carried on the opposing wall surfaces of said pair of walls comprising a plurality of spaced-apart elongated ribs integrally formed with each of said walls respectively;
• said pair of walls include opposite ends defining open ends of said work area respectively in spaced-apart relationship constituting a rear end disposed at the rear of a patient's mouth with its opposite end constituting a front end;
• said pair of walls are of a given dimensional height defined between upper and lower edges thereof;
• and
• said ribs having a dimensional height greater than said dimensional height of said walls so as to extend beyond said wall upper and lower edges.

A dental impression tray providing comfort to the patient and that is non-injurious comprising;

• a pair of arcuate walls arranged in parallel spaced-apart relationship defining a work area between opposing wall surfaces;
• an impression material support membrane disposed across said work area and having opposite edge marginal regions attached to said pair of walls so as to divide said work area into an upper section and a lower section;
• impression material retaining means carried on the opposing wall surfaces of said pair of walls comprising a plurality of spaced-apart elongated ribs integrally formed with each of said walls respectively;
• said pair of walls include opposite ends defining open ends of said work area respectively in spaced-apart relationship constituting a rear end disposed at the rear of a patient's mouth with its opposite end constituting a front end;
• and
• a metal member having its opposite ends attached to said wall ends constituting said rear end in spaced-apart relationship to said support membrane.

A dental impression tray providing comfort to the patient and that is non-injurious comprising;

• a pair of arcuate walls arranged in parallel spaced-apart relationship defining a work area between opposing wall surfaces;
• an impression material support membrane disposed across said work area and having opposite edge marginal regions attached to said pair of walls so as to divide said work area into an upper section and a lower section;
• impression material retaining means carried on the opposing wall surfaces of said pair of walls comprising a plurality of spaced-apart elongated ribs integrally formed with each of said walls respectively;
• said pair of walls include opposite ends defining open ends of said work area respectively in spaced-apart relationship constituting a rear end disposed at the rear of a patient's mouth with its opposite end constituting a front end;
• said pair of walls are of a given dimensional height defined between upper and lower edges thereof;
• and
• said ribs having a dimensional height greater than said dimensional height of said walls so as to extend beyond said wall upper and lower edges.

A dental impression tray providing comfort to the patient and that is non-injurious comprising;

• a pair of arcuate walls arranged in parallel spaced-apart relationship defining a work area between opposing wall surfaces;
• an impression material support membrane disposed across said work area and having opposite edge marginal regions attached to said pair of walls so as to divide said work area into an upper section and a lower section;
• impression material retaining means carried on the opposing wall surfaces of said pair of walls comprising a plurality of spaced-apart elongated ribs integrally formed with each of said walls respectively;
• said pair of walls include opposite ends defining open ends of said work area respectively in spaced-apart relationship constituting a rear end disposed at the rear of a patient's mouth with its opposite end constituting a front end;
• and
• said retaining means further includes a wire extending through said plurality of ribs engageable with said impression material.