Disposable Plastic Impression Trays are single-use, pre-formed trays designed for taking accurate preliminary or final impressions with alginate or silicone materials. They offer a hygienic, convenient, and dimensionally stable alternative to reusable metal trays, becoming a standard in modern, efficient dental practices.
Technical Specifications & Material Science: The trays are injection-molded from rigid, medical-grade polystyrene or polypropylene. These plastics provide the necessary stiffness to hold the viscous impression material without flexing during the set, while also being lightweight. Trays are available in a comprehensive range: perforated (for mechanical retention of alginate) and non-perforated/solid (for use with adhesives and silicone materials); in sizes for upper and lower arches; and in variants for adults, children, and edentulous patients. The rim design often includes a peripheral seal to help contain the material.
Industry Standards & Compliance: Manufactured in an ISO 13485 certified facility. The materials are FDA compliant and CE-marked as Class I medical devices. They are non-toxic and non-irritating for intraoral use.
Application Scenarios:
- Preliminary Impressions: For study models, diagnostic casts, and the fabrication of custom acrylic trays.
- Opposing Arch Impressions.
- Orthodontic Impressions for model work-up and appliance fabrication.
- Flipper or immediate denture impressions.
- In situations where sterilization of reusable trays is impractical (e.g., outreach programs).
Usage Guidelines: Select the appropriate tray size and type. For solid trays, apply a thin layer of tray adhesive and allow it to become tacky. Load the mixed impression material into the tray, seat it in the patient’s mouth, and hold it steady until the material sets. After removal, the impression can be poured immediately. The tray is then disposed of with clinical waste.
Market Value Proposition: The core value is infection control and workflow efficiency. By eliminating the cleaning, disinfecting, and potential for cross-contamination associated with reusable trays, practices save valuable assistant time and reduce infection risk. It also guarantees that every impression starts with a dimensionally perfect tray, free from the distortions that can occur in metal trays over time. For suppliers, they are a high-turnover consumable that supports the daily workflow of every general and orthodontic practice.