tray

(redirected from triple tray)
Also found in: Dictionary, Thesaurus, Encyclopedia.

tray

 [tra]
a flat-surfaced utensil for the conveyance of various objects or material.

tray

(trā),
A flat receptacle with raised edges.

tray

(tra) a flat-surfaced utensil for the conveyance of various objects or material.
impression tray  a contoured container to hold the material for making an impression of the teeth and associated structures.

tray

(trā)
A flat receptacle with raised edges.

tray,

n a receptacle or device that holds or carries.
tray, acrylic resin,
n a tray made of acrylic resin.
tray, impression,
n a receptacle or device that is used to carry impression material to the oral cavity, confine the material in apposition to the surfaces to be recorded, and control the impression material while it sets to form the impression.
tray, impression, maxillary,
n a tray consisting of a body with a protruding edge and handle used to contain a material (e.g., rubber, hydrocolloid, or alginate) against the palatal tissues for making a mold of the maxillary arch structures.
Enlarge picture
Triple tray.
tray, triple,
n a tray used to make an impression of a prepared tooth as well as opposing teeth. Such impressions are then used to prepare fixed prostheses and to make a bite registration.
References in periodicals archive ?
After making the triple tray reline impression, an assistant may also need to make a bite registration.
When assisted by a knowledgeable dental assistant, a dentist performing triple tray procedures may only need to anesthetize the patient and prepare the crown and bridge abutment/s.
A triple tray is acceptable to use if, after the tooth or teeth are prepared into abutments, it is still obvious, from the occlusion of the unprepared teeth, how to articulate the teeth together.
If the occlusion reference points are not present or are not obvious, such as if preparing a bridge where there would be no unprepared posterior tooth distal to the bridge abutments, or if a single triple tray impression will not capture all abutment teeth, then two separate impressions of the arches should be made.
After the tooth is prepared, the assistant will fill this impression tray with low--viscosity VPS and the dentist will seat this relined triple tray intra--orally to take a final impression to capture the abutment details.
Typically, equal lengths of each material are dispensed so that the total amount of impression material that will be mixed will fill the triple tray.
This cartridge provides enough impression material for multiple triple tray fillings.
Prior to placing the triple tray, the assistant observes the patient's natural occlusion without the triple tray in place to see how the patient's teeth mesh together in maximum inter-cuspation.
After making an anterior pre-operative triple tray impression, the assistant rinses the tray in water to remove saliva, blood and other protein material.