What is a custom tray?
Custom trays are made up of auto-polymerizing Polymethyl-methacrylate (PMMA) resin, thermoplastic material and visible-light curing resin. The tray materials are supposed to be rigid, dimensionally stable, retentive to impression materials or adhesive and moisture resistant.
What is a custom tray for dentures?
Impression trays serve to carry, confine and control the impression material from the patient’s mouth. A custom tray is used to help insert and remove the impression material more easily.
What are the types of special tray?
Types of Special Tray Design
- Close-fitting special tray.
- Spaced special tray.
- Windowed special tray.
Why are custom trays needed?
Using a custom tray means creating an article which is tailor-made to the anatomy of the patient, resulting in a more precise impression, increased patient comfort, and less wastage of material.
What is stock tray?
Stock Trays. 12. Definition Impression tray that serve to carry the impression material to the mouth & support it in the correct position while it is hardening. This type of the trays can be used for several patients & used for making primary impression.
What is putty in dentistry?
Dental impression material putty is used to make molds and casts that help creating dental models, braces and reconstructions.
What is the difference between a tray and platter?
As nouns the difference between tray and platter is that tray is (obsolete) trouble; annoyance; anger or tray can be a small, typically rectangular or round, flat, rigid object upon which things are carried while platter is a tray for serving foods or platter can be one who plats/plaits or braids.
What is rectangular tray?
The Rectangular Tray is a great serving tool for hotel and buffet service. It has a classic design with ergonomic handles for easy and comfortable transportation. Add a doily for a beautiful appetizer plate presentation or for room service. Constructed from 18/8 stainless steel with a brushed finish.
Why are custom trays better than stock trays?
This is why custom trays always are a better fit than stock trays. They are useful only for the particular patient- then discarded. 11. Stock Trays 12. Definition Impression tray that serve to carry the impression material to the mouth & support it in the correct position while it is hardening.
What is the difference between stock and custom blister tray?
Custom blister trays are those trays whose manufacturing process targets a specific client. The overall cost of manufacturing stock blister trays is relatively cheaper than that of manufacturing custom blister trays. A manufacturer will have to adhere to the specification of a given client when fabricating custom blister trays.
What are the different classifications of trays?
Classification of trays Based on whether they are prefabricated or individualized • 1- prefabricated Stock tray: used for primary impression procedure. • Perforated trays • Non perforated trays • Rim lock trays • 2- individualized Special tray/ custom try which is used for final impression procedure.
How accurate is the impression made in stock trays?
The findings of this study indicated that the impression made in stock trays, i. e. putty-wash 2-step technique with polyethylene spacer, is as accurate as those for impression techniques in custom trays. This is in accordance with the study done by Thogthmmachat et al. and Valderhaug and Floystrand.