The triple tray technique is a very efficient method for taking impressions . ... On initial pre-prep insertion, the trays are loaded with impression material and the posterior tray is inserted first, followed by the sextant tray (Figure 3).
When should you not use a triple tray?
Using triple tray impressions for simple posterior one-to-three-unit cases can be a highly predictable and effective way for practitioners to produce acceptable outcomes. It is best not to use a triple tray when the distal most tooth in the arch is being prepared .
How do you use the triple tray?
The triple tray technique is a very efficient method for taking impressions . ... On initial pre-prep insertion, the trays are loaded with impression material and the posterior tray is inserted first, followed by the sextant tray (Figure 3).
Why is it called triple tray?
In 1983, Wilson and Werrin first described the dual arch impression technique, which is also known as the double arch impression technique or the “triple-tray” technique. This impression technique involved the use of a special tray that registers the impression of the opposing segments of the dentition .
How do you use the bite registration tray?
Insert bite tray into the patient’s mouth and allow to harden for a few minutes. Once the material is set, remove the tray. The impression can be sent to the lab to make bridges or crowns or to analyze bite registration. Bite registration refers to the relationship between your upper and lower teeth.
What is gingival retraction cord?
The gingival retraction cord is primarily used to push the gum tissue away from the prepared margins of the tooth , in order to create an accurate impression of the teeth. The gum can get in the way of an impression of a tooth, and this is why gums are typically pushed out of the way.
What is copper band impression?
Summary. Copper band impressions are useful where metal dies are desired and in cases where gingival hemorrhage cannot be controlled. A technique is described employing two copper bands, one a slide fit outside the other. The empty inner band, properly festooned and fitted, is positioned on the prepared tooth.
What is dual arch impression?
Abstract. All dual-arch impression techniques utilize special stock impression trays of various designs. These trays are made of flexible plastic with fabric or mesh material placed across the occlusal surfaces of the teeth connecting their buccal and lingual flanges.
What is a custom tray?
Custom Trays. Definition An individualized impression tray made from a cast recovered from primary impression . It is used in making a final impression.
What is dental impression tray?
An impression tray is a container which holds the impression material as it sets, and supports the set impression until after casting . Impression trays can be separated into two main categories- stock trays and special trays.
What is stock tray?
1. Stock trays By Amin Abusallamah. Impression tray • It is a device used to carry & control impression material while making an impression stock tray • The tray we use in the primary impression. Parts of the tray handle flanges floor.
What is bite registration for?
The most common purpose for taking a bite registration is to record the patients bite in passive centric occlusion . The only way to be SURE you have achieved this is by taking the registration with the patient passively closed3.
