Frequently Asked Questions (FAQs)
1. What are the different types of trays used in hospitals?
There are three main types of surgical trays used in hospitals: Perforated Trays, Mesh Trays, and Wire Trays. Perforated Trays are made from materials like auto-polymerizing polymethyl-methacrylate (PMMA) resin, thermoplastic cloth, and visible-mild curing resin.
2. Which instruments should be first on the procedure tray?
In a procedure tray setup, the basic instruments should be placed first on the tray. These are followed by additional examination instruments, hand cutting instruments, and finally, restorative instruments.
3. How many types of trays are there?
There are five major types of tray columns: bubble cap tray, sieve deck tray, dual flow tray, valve tray, and baffle tray. These trays are used for different purposes in various industrial processes.
4. How long do you leave dental trays in?
The duration for wearing dental trays can vary depending on the treatment. For daily wear, trays are typically worn for a few hours a day or overnight. Some patients may require longer wear to achieve desired results, while others may only need to wear them for an hour or two each day.
5. What are the 4 basic instruments in dentistry?
The four basic instruments in dentistry are the mirror, plier, explorer, and excavator. These instruments are commonly used in dental procedures for various purposes.
6. What is the correct order of instrument processing?
The correct order of instrument processing involves several steps. The processing area should be divided into sections for receiving, cleaning, and decontamination; preparation and packaging; sterilization; and storage. Following this order ensures proper handling and sterilization of dental instruments.
7. What are the three types of impression trays?
The three types of impression trays are special trays (also known as custom trays), stock trays (pre-formed trays), and upper/lower arch trays. Special trays are used for individual patients and final impressions, while stock trays can be used for multiple patients. Upper and lower arch trays are specific to the upper and lower dental arches respectively.