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- Definition: A dental device used to hold impression material in the mouth to create a mold of the teeth and oral tissues.
- Purpose: To capture accurate impressions of the teeth and surrounding tissues for creating dental restorations or orthodontic appliances.
- Types:
- Metal Trays: Durable, often used for detailed impressions and can be autoclavable.
- Plastic Trays: Disposable, used for single-use applications or for patients with specific needs.
- Custom Trays: Made individually for a specific patient to ensure a perfect fit and accuracy.
- Components:
- Body: The main part that holds the impression material.
- Perforations: Holes or slots in the tray to allow the impression material to adhere and prevent movement.
- Handle: Provides control and easy removal of the tray from the mouth.
- Materials: Typically made from metal or plastic, chosen based on durability, ease of use, and sterilization requirements.
- Design: Available in various sizes and shapes to accommodate different arches and patient needs, ensuring a precise and comfortable fit during the impression process.
