![]() ![]() When you try to load, place or orientate the custom trays in the patient’s mouth, it’s a prefect solution to many problems. It can hold the lip during impression making. The functions of handle benefit a lot, for instance: The design of handle of impression tray is very practical and useful. The impression tray is made of 2 main parts: handle and body (flanges and floor). There’re 10 sizes that are well known to dentists or nurses. But they need to keep its shape throughout the impression procedure and pouring of impression. The plastic dental impression trays are disposable ones to prevent cross-contamination. They can be suitable for the properties of all elastometric materials. The metal trays are strong and durable, providing maximum support for impression materials. Comparison of Metal Impression Trays and Plastic Impression Trays Rim-lock trays (Water-cooled Non water-cooled) Stock trays: - Full arch trays - Sectional trays - Quadrant trays ģ. Non-metallic trays (plastic trays, acrylic resin trays)ġ. Metallic trays (stainless steel, aluminum)Ģ. ![]() In accordance with different classification standards, impression trays are available in a variety of types. The impression trays can be made of stainless steel, aluminum or plastic in various types and sizes. The dental impression tray can be molded for the top teeth, bottom teeth, or both. Metallic impression trays or non-metallic trays need to comfortably fit into your teeth and gums and inserted into the mouth during dental treatment. The making of dental impressions means to create a close replica of the teeth or oral tissue, or both. In the process of impression making, the dental impression tray assists in inserting and removing impression materials from patient’s mouth. They are usually perforated to easier carry the impression materials. That’s to say, support the impression materials in the planned contact with oral tissues and when the impression materials are removed from the mouth so that a cast can be poured. Then it supports the mouth in the correct position in the process of hardening. In modern dentistry, dental impression trays are common dental products and designed to carry, confine and control the impression materials and be placed into the patients' mouth for impression making. Then the imprint of a patient’s dentition and surrounding structures of oral cavity will be left. Then the impression tray is put in patient’s mouth for few minutes (the period depends on the nature of impression materials are used). The liquid or semi-solid impression materials should be mixed in glass dappen dish first and placed on the rough surface of dental impression tray. To finish the making of dental impression, a stock or special dental impression tray that could roughly suit oral structures will be needed, as well as proper impression materials. ![]() Dental impression is the negative registration of oral structures obtained with the help of impression materials, to produce a positive replica of the structure to be used in production of a dental restoration. ![]()
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