 e |
Which of the following is false? a. INLAY is a type of INTRACORONAL restoration. b. Onlay is a type of EXTRACORONAL restoration. c. PINLAY is a type of an inlay combined with a pin. d. Bridge is the replacement of one or more missing teeth permanently attached to natural teeth. e. All the above is true. |
| c |
Which of the following is false? a. RETAINER is a restoration that dentist attaches to the abutment tooth b. MATERIALS USED is produce restoration includes CAST METAL ALLOY, ACRYLIC RESIN, COMPOSITE RESIN, and PORCELAIN. c. ABUTMENT is tooth or a root used for support and anchorage of fixed dental prostheses inserted into patient’s mouth by dental laboratory technician. d. WORKING CAST is cast used to duplicate the patient’s prepared tooth/teeth, the other teeth present in the arch, and all associated soft tissue structures. e. All the above is true.In 2012, dental laboratory technician are not licensed to work one on one with patients in the New York State. |
| d |
Which of the following is false? a. WAX PATTERN is exact replica of a desired shape; when wax pattern is invested and burned out, a casting could be made in a resultant mold. b. Retention of the restoration is enhanced by the parallelism of preparation walls. c. The 3 criteria for an efficient crown are fit, form, and function. d. The crown can be to be partially or fully seated to avoid open or short margins. e. All the above is true. Crown must be fully seated to avoid open or short margins. |
| b |
Types of margin preparation includes a. open, shoulder, bevel, knife edge. b. chamfer, shoulder, bevel, knife edge. c. chamfer, shoulder, partial, knife edge. d. chamfer, shoulder, bevel, angled. e. None of the above. Open, partial, and angled margin preparation does not exist. |
| d |
Which of the following is false? a. Effective infection control strategies can prevent disease transmission by interrupting one or more links in the chain of infection. b. The common source of transmission for Hepatitis and HIV is human blood. c. TB is transmitted through the air from exposure to germs in the saliva of infected person. d. UNIVERSAL PRECAUTIONS INFECTION CONTROL indicates some cases that come to the laboratory as a potential carrier of an infectious disease and handle it using the proper protective equipment and handling procedures. e. All the above is true. UNIVERSAL PRECAUTIONS INFECTION CONTROL indicates ALL cases that come to the laboratory as a potential carrier of an infectious disease and handle it using the proper protective equipment and handling procedures. |
| d |
When preparing the die, trimming is____ and ditching is____. a.cutting the model with a saw, use the color pencil to highlight the margin b.use the color pencil to highlight the margin, cutting the model with a saw c.exposing the margin, removing excess bulk d.removing excess bulk, exposing the margin e.none of the above |
| b |
There are 2 known ways to fabricate provisionals in dental field: direct and indirect. ________ and ____________. a. direct is done in the laboratory setting ,indirect is done by the dentist at the time when the preparation is done. b. direct is done by the dentist at the time when the preparation is done ,indirect is done in the laboratory setting. c. None of the above |
| d |
Which of the following statement below is false? a. the provisionals have to follow function, shape, and shade as the natural dentition and they are used as a guide in fabricating the final restoration. b. There are 2 known ways to fabricate provisionals in dental field: direct and indirect. c. It is appropriate to add polymer-liquid first before adding monomer-powder. d. It is appropriate to add monomer-powder first before adding polymer-liquid. e. All the above is true. |
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