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CDC 4Y051 TEST 1: QUESTIONS WITH 100% CORRECT ANSWERS, Exams of Dentistry

CDC 4Y051 TEST 1: QUESTIONS WITH 100% CORRECT ANSWERS

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CDC 4Y051 TEST 1: QUESTIONS WITH 100% CORRECT
ANSWERS.
1) To make the necessary spaced holes in a rubber dam, you would use the rubber
dam
a. clamp.
b. frame.
c. punch.
d. forceps. -- Correct Answer ✔✔ c. punch
2) Which rubber dam clamp sizes are commonly used in pediatric dentistry?
a. #00, #0, and #14A.
b. #00, #W00, and #2.
c. #0, #W3, #W8, and #14A.
d. #0, #3, #7, and #9. -- Correct Answer ✔✔ b. #00, #W00, and #2.
3) What dental unit system is affected by a malfunctioning water system?
a. 3-way syringe only.
b. Tubing flush systems only.
c. 3-way syringe and handpiece water spray only.
d. Tubing flush systems and handpiece water spray only. -- Correct Answer
✔✔ c. 3-way syringe and handpiece water spray only.
4) How much space must be between the rim-lock impression tray and the occlusal
or incisal edges of the teeth?
a. 2 to 3 mm.
b. 4 to 5 mm.
c. 6 to 7 mm.
d. 8 to 10 mm. -- Correct Answer ✔✔ a. 2 to 3 mm
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CDC 4Y051 TEST 1: QUESTIONS WITH 100% CORRECT

ANSWERS.

  1. To make the necessary spaced holes in a rubber dam, you would use the rubber dam a. clamp. b. frame. c. punch. d. forceps. -- Correct Answer ✔✔ c. punch
  2. Which rubber dam clamp sizes are commonly used in pediatric dentistry? a. #00, #0, and #14A. b. #00, #W00, and #2. c. #0, #W3, #W8, and #14A. d. #0, #3, #7, and #9. -- Correct Answer ✔✔ b. #00, #W00, and #2.
  3. What dental unit system is affected by a malfunctioning water system? a. 3 - way syringe only. b. Tubing flush systems only. c. 3 - way syringe and handpiece water spray only. d. Tubing flush systems and handpiece water spray only. -- Correct Answer ✔✔ c. 3-way syringe and handpiece water spray only.
  4. How much space must be between the rim-lock impression tray and the occlusal or incisal edges of the teeth? a. 2 to 3 mm. b. 4 to 5 mm. c. 6 to 7 mm. d. 8 to 10 mm. -- Correct Answer ✔✔ a. 2 to 3 mm
  1. To remove blood, mucous, and saliva from an alginate impression and ensure good surface detail, you a. clean and rinse the impression under cool tap water and shake to remove excess water. b. submerge the impression in a disinfectant. c. rinse the impression under warm water. d. clean with slurry water. -- Correct Answer ✔✔ a. clean and rinse the impression under cool tap water and shake to remove excess water
  2. While you are making maxillary impressions, have the patient lean forward a. to allow the material to set. b. to cover the surfaces of the teeth. c. so the patient can breathe through the nose. d. to prevent the material from running down the patient's throat. -- Correct Answer ✔✔ d. to prevent the material from running down the patient's throat.
  3. To properly make a maxillary impression your first contact of the impression material is made a. in the palatal area. b. over the incisal surfaces of anterior teeth. c. over the occlusal surfaces of posterior teeth. d. over the maxillary tuberosity and posterior teeth. -- Correct Answer ✔✔ d. over the maxillary tuberosity and posterior teeth.
  4. To remove the maxillary impression from the patient's mouth, you a. grasp the handle and apply pressure in an upward and outward motion. b. rock the tray back and forth to break the mucous seal at the posteriors. c. insert your finger facially and push down at the third molar area. d. hold the handle and apply facial pressure at the anterior area. -- Correct Answer ✔✔ c. insert your finger facially and push down at the third molar area.
  5. The central vacuum system requires what maintenance action be done after each patient? a. Draw clean water or air through the HVE only.
  1. What step does not apply when removing and replacing the 3-way syringe? a. Unscrew the tip nut completely to remove the tip. b. Two clicks are felt as the grooves slide over the O-rings. c. Properly install tip so that it cannot be ejected from the syringe. d. Finger-tighten the nut and press the syringe button to be sure that the tip is secure. -- Correct Answer ✔✔ a. Unscrew the tip nut completely to remove the tip.
  2. When the light is properly positioned, it will illuminate the a. treatment site without projecting shadows. b. provider's handpiece in the oral cavity. c. provider's hands in the oral cavity. d. treatment site projecting shadows. -- Correct Answer ✔✔ a. treatment site without projecting shadows.
  3. Always use the wrapper to protect the bulb when installing it into the dental light in order to a. meet infection control standards. b. avoid finger injury if the bulb shatters. c. prevent the fingers from getting burned after the bulb is installed. d. guard the bulb from collecting finger oils that can affect performance and bulb life. -- Correct Answer ✔✔ d. guard the bulb from collecting finger oils that can affect performance and bulb life.
  4. Which low-speed handpiece attachment uses rotary instruments with a smooth shank 1 ½ inches in length? a. Friction grip attachment. b. Straight attachment. c. Contra-angle. d. Latch angle. -- Correct Answer ✔✔ b. Straight attachment.
  5. Which low-speed handpiece attachment uses a notched, short shank, ½-inch rotary instrument? a. Prophy angle. b. Latch contra-angle. c. Straight attachment.

d. Friction grip attachment. -- Correct Answer ✔✔ b. Latch contra-angle.

  1. Which handpiece is used in cavity preparations to remove the bulk of enamel, dentin, and old metal restorations? a. Belt driven. b. High speed. c. Low speed. d. Electric. -- Correct Answer ✔✔ b. High speed
  2. Which statement does not apply to the proper maintenance of the high-speed handpiece? a. If a handpiece is not properly cleaned and lubricated, abrasions will cause excessive wear and undue vibration. b. The manufacturer's instructions contain information on lubrication requirements only. c. Always use separate cans of lubricate/cleaner for before and after sterilization. d. Improper or insufficient lubrication, cleaning, or sterilization can ruin a handpiece. -- Correct Answer ✔✔ b. The manufacturer's instructions contain information on lubrication requirements only.
  3. Which statement about using fiber optics in dentistry does not apply? a. Eye strain and fatigue are increased. b. Overhead light and mirror adjustments are minimized. c. It helps to identify the smoothness of crown preparations. d. It helps to identify and diagnose interproximal caries, stains, and decay. -- Correct Answer ✔✔ a. Eye strain and fatigue are increased
  4. How do you clean the handpiece's fiber optic surfaces? a. Wet a cotton swab with isopropyl alcohol and use it on both ends of the handpiece before sterilization. b. Wet a cotton swab with any kind of alcohol and use it on both ends of the handpiece after sterilization. c. Submerge both ends of the handpiece in isopropyl alcohol after sterilization.

b. In the mouth. c. In the rectum. d. In the ear. -- Correct Answer ✔✔ d. In the ear

  1. Before a patient's appointment, both you and the dentist screen the patient's dental health record for all of the following reasons except a. reviewing AF Form 696 for positive entries. b. determining what procedures will be performed during patient treatment. c. checking for communicable diseases to determine the level of infection control required. d. checking currency of information, record completeness, and x-rays required for the procedure. -- Correct Answer ✔✔ c. checking for communicable diseases to determine the level of infection control required.
  2. When your patient is referred to another area in the clinic, you should a. give the patient written directions to the designated place. b. give the patient verbal directions to the designated place. c. have the patient call the area referred to for directions. d. escort the patient to the designated place. -- Correct Answer ✔✔ d. escort the patient to the designated place.
  3. The proper way to place a routine plastic-backed paper drape on a patient is with a. the plastic side facing outward. b. the paper side facing outward. c. the paper side facing the patient's chest. d. either the paper side facing inwards or the plastic side facing outwards. -- Correct Answer ✔✔ b. the paper side facing outward
  4. What type of drape is used when there is a good chance of contamination? a. Postoperative. b. Disinfecting. c. Surgical. d. Routine. -- Correct Answer ✔✔ c. Surgical
  5. You have a patient seated and draped. Your next step is to position the light. To do this properly, you position the light

a. toward the appropriate arch and turn the light on. b. within your reach from a standing position to permit adjustments required during treatment. c. toward the area above the patient's chin and turn the light on to adjust toward the appropriate arch. d. toward the area beneath the patient's chin and turn the light on to adjust toward the appropriate arch. -- Correct Answer ✔✔ d. toward the area beneath the patient's chin and turn the light on to adjust toward the appropriate arch.

  1. If the medical health history form for a patient is current, why must you interview the patient before beginning treatment? a. To determine what precautions to take. b. To ensure the patient was honest when completing the form. c. To ensure that any communicable disease is noted for infection control. d. To determine if there have been any changes since the patient was last treated. -- Correct Answer ✔✔ d. To determine if there have been any changes since the patient was last treated
  2. Since it is not always easy for the patients to share private, personal information, how should you discuss each question on the AF Form 696 with a patient? a. Listen and accept the patient's attitudes and perceptions without judging. b. Ask questions that make the patient account for behavior. c. Position yourself above the patient's eye level. d. Use a firm vocal tone. -- Correct Answer ✔✔ a. Listen and accept the patient's attitudes and perceptions without judging.
  3. Which patient diseases or conditions could require antibiotic treatment prior to dental treatment? a. Angina pectoris, glaucoma, pacemakers, rheumatic fever or heart murmur. b. Stroke, implant prosthesis, diabetes, anemia, angina pectoris, and heart murmur. c. Artificial heart valves, congenital heart disease, rheumatic fever, or heart murmur.

d. Clearance by Public Health. -- Correct Answer ✔✔ d. Clearance by Public Health.

  1. You suspect a patient is experiencing insulin shock. In this situation you would administer a. insulin. b. antibiotics. c. nitroglycerin. d. a source of sugar. -- Correct Answer ✔✔ d. a source of sugar
  2. When a patient indicates a history of kidney trouble, it is important that you identify if this patient has had a. urinary tract infections and renal disease. b. minor bladder infections and kidney transplants. c. minor urinary tract, bladder, or kidney infections. d. a kidney transplant, severe renal disease, and dialysis treatment. -- Correct Answer ✔✔ d. a kidney transplant, severe renal disease, and dialysis treatment.
  3. What disease is usually associated with an excess of bilirubin causing the skin and eyes to turn yellow? a. Heart. b. Liver. c. Thyroid. d. Sickle cell. -- Correct Answer ✔✔ b. Liver
  4. Which hepatitis types are transmitted by viruses and have carrier states? a. Hepatitis A and Hepatitis B. b. Hepatitis C and Hepatitis A. c. Hepatitis D and Hepatitis A. d. Hepatitis B and Hepatitis C. -- Correct Answer ✔✔ d. Hepatitis B and Hepatitis C.
  5. What type of dental treatment can be provided for a patient undergoing chemotherapy? a. Routine.

b. Elective. c. Emergency. d. Restorative. -- Correct Answer ✔✔ c. Emergency

  1. For pregnant patients, what trimester is considered the best time to provide dental treatment? a. First. b. Second. c. Third. d. None. -- Correct Answer ✔✔ b. Second
  2. Dental clinics support which of these medical objectives of the hypertension screening program? a. Elimination of hypertension in active duty military. b. Cure hypertension before any definitive dental treatment. c. Diagnosis and prescription of medication for hypertension. d. Early detection, evaluation, and treatment of hypertension. -- Correct Answer ✔✔ d. Early detection, evaluation, and treatment of hypertension
  3. The patient's blood pressure reading is routinely recorded a. only on the SF 603 or SF 603A. b. only on the AF IMT 696. c. on the SF 521 and AF IMT 696. d. on the AF IMT 696 and SF 603 or SF 603A. -- Correct Answer ✔✔ b. only on the AF IMT 696
  4. What is the working part of a condensing dental instrument? a. Blade. b. Shank. c. Head. d. Nib. -- Correct Answer ✔✔ d. Nib
  5. The identification number of a double-ended dental instrument is usually found a. near the center. b. on the inner portion of the instrument's shank. c. on the portion of the handle nearest the working end.
  1. Which part of a bur fits into a handpiece? a. Head. b. Neck. c. Shank. d. Working end. -- Correct Answer ✔✔ c. Shank
  2. A disadvantage of a carbide bur is that it a. dulls after only one use. b. should be discarded after each use. c. is brittle and has a tendency to fracture under pressure. d. often generates heat in the tissues of the tooth under low speed. -- Correct Answer ✔✔ c. is brittle and has a tendency to fracture under pressure.
  3. Which numbers identify straight crosscut fissure burs? a. 169, 170, and 171. b. 330, 331, and 332L. c. 699, 700, 701, and 701L. d. 556, 557, 558, 559, and 560. -- Correct Answer ✔✔ d. 556, 557, 558, 559, and 560.
  4. Which bur is best suited for making undercuts in cavity preparation? a. Round. b. Inverted cone. c. Taper fissure. d. Straight fissure. -- Correct Answer ✔✔ b. Inverted cone.
  5. What is the shape of a #6 finishing bur? a. Oval. b. Flame. c. Round. d. Concave, tapered fissure. -- Correct Answer ✔✔ d. Concave, tapered fissure.
  6. Which type of bur is available in a wide variety of sizes and grits? a. Diamond. b. Finishing.

c. Excavating. d. Denture trimming. -- Correct Answer ✔✔ a. Diamond

  1. What disk grit type is used on a dental rotary instrument for gross reduction and contouring? a. Fine. b. Medium. c. Intermediate. d. Coarse. -- Correct Answer ✔✔ d. Coarse
  2. What do you call an abrasive disk that only has one side covered with abrasives? a. Slick surface. b. Safe-sided. c. One surface. d. Reversible. -- Correct Answer ✔✔ b. Safe-sided
  3. To maintain the dental team's seated position, where do you place objects used during four-handed dental treatment? a. 4 to 6 inches above the provider's sight. b. In the zone between 11 and 2 o'clock. c. Slightly beyond an arm's length. d. Within an arm's length. -- Correct Answer ✔✔ d. Within an arm's length
  4. When four-handed dentistry is performed, the a. assistant's and provider's hands remain in the treatment zone. b. assistant's hands and eyes remain in the treatment zone. c. provider's hands and eyes remain in the treatment zone. d. provider's hands remain in the treatment zone. -- Correct Answer ✔✔ c. provider's hands and eyes remain in the treatment zone.
  5. When performing four-handed dentistry procedures, a right-handed provider is between the a. 8 and 11 o'clock position, and the right-handed assistant is between the 2 and 4 o'clock position. b. 1 and 4 o'clock position, and the right-handed assistant is between the 8 and 10 o'clock position.
  1. In four-handed dentistry, how should you position the working end of the instrument you are passing to the provider? a. Toward the treatment site. b. Toward the provider's fulcrum. c. Whatever is most comfortable for you. d. It does not matter since providers change it to suit their own style. -- Correct Answer ✔✔ a. Toward the treatment site.
  2. Instruments becoming tangled during the instrument exchange are usually caused by a failure to a. parallel the handles after the exchange. b. parallel the handles before the exchange. c. hold the handles perpendicular after the exchange. d. hold the handles perpendicular before the exchange. -- Correct Answer ✔✔ b. parallel the handles before the exchange
  3. The proper sequence for assembling the aspirating syringe is to a. insert the carpule with the rubber stopper end in first, positioned toward the plunger, then attach the needle and engage the piston rod. b. insert the carpule with the rubber diaphragm end in first, positioned toward the plunger, then attach the needle and engage the piston rod. c. insert the carpule with the rubber stopper end in first, positioned away from the plunger, next engage the piston rod, then attach the needle. d. attach the needle first, then insert the carpule with the rubber stopper end in first, positioned away from the plunger, and engage the piston rod. -- Correct Answer ✔✔ a. insert the carpule with the rubber stopper end in first, positioned toward the plunger, then attach the needle and engage the piston rod.
  4. The disassembly sequence for the aspirating syringe is to a. disengage the harpoon, remove the cartridge, and remove the needle. b. remove the needle, disengage the harpoon, and remove the cartridge. c. disengage the harpoon, remove the needle, and remove the cartridge. d. recap and remove the needle, disengage the harpoon, and remove the cartridge. -- Correct Answer ✔✔ a. disengage the harpoon, remove the cartridge, and remove the needle.
  1. Which of the following is used for irrigation during routine dental restorative procedures? a. Sterile saline solution applied by either a bulb-type or Luer syringe. b. Saline or water applied by either a bulb-type or Luer syringe. c. Sterile water applied by either a bulb-type or Luer syringe. d. Water or water spray from the dental unit's 3-way syringe. -- Correct Answer ✔✔ d. Water or water spray from the dental unit's 3-way syringe.
  2. To remove a large volume of fluid from an oral cavity without exerting injurious suction pressure to oral soft tissue, you would use a. a saliva ejector. b. a gamco aspirator. c. bulb-type suction. d. a high-volume evacuator. -- Correct Answer ✔✔ d. a high-volume evacuator.
  3. What technique draws the handpiece water spray across the tooth keeping the tooth cool and the cavity preparation clear of debris? a. Aseptic. b. Washed field. c. Four-handed dentistry. d. High volume/low pressure. -- Correct Answer ✔✔ b. Washed field
  4. What type of pressure do you apply to tissue you are retracting? a. Light. b. Very light. c. Very firm. d. Firm enough to prevent slippage. -- Correct Answer ✔✔ d. Firm enough to prevent slippage
  5. To prevent the patient from aspirating or swallowing the rubber dam clamp, you use a. the rubber dam forceps. b. the rubber dam frame. c. the rubber dam.
  1. What type of maintenance involves troubleshooting to isolate the cause of equipment malfunction, and replacing or adjusting components or subsystems to restore normal function, safety, performance, and reliability of medical equipment? a. Contract. b. Scheduled. c. Preventive. d. Unscheduled. -- Correct Answer ✔✔ d. Unscheduled
  2. How can you stop a dental chair once the preposition or auto return switch is activated? a. Cannot be stopped. b. Press another switch. c. Press the safety stop plate. d. Press any other switch or the safety stop plate. -- Correct Answer ✔✔ d. Press any other switch or the safety stop plate.
  3. What must you do if the preset positions of the preposition or auto return switches on the dental chair are not correct for treatment? a. Request a BMET perform preventive maintenance. b. Consult the manufacturer's instructions and adjust them. c. Discontinue using these switches. d. Nothing; they cannot be changed. -- Correct Answer ✔✔ b. Consult the manufacturer's instructions and adjust them.
  4. What feature allows the dental chair to rotate to approximately 45 degrees from either side of the center and then lock in position? a. Chair control switches. b. Foot control switches. c. Safety stop plate. d. Swivel/brake. -- Correct Answer ✔✔ d. Swivel/brake
  5. Repairing or replacing the inner workings of the dental chair's hydraulic and electrical systems is done by the a. BMET. b. dental assistant. c. clinic NCOIC.

d. dentist. -- Correct Answer ✔✔ a. BMET

  1. The rubber dam clamp is placed onto the rubber dam forceps with the bow of the clamp facing a. upward and toward the forceps. b. downward and toward the forceps. c. upward and away from the forceps. d. downward and away from the forceps. -- Correct Answer ✔✔ c. upward and away from the forceps
  2. To invert the rubber dam on the facial and lingual areas of the exposed teeth, you would use a. floss. b. an explorer. c. a dull instrument. d. a sharp instrument. -- Correct Answer ✔✔ a. floss.
  3. When removing the rubber dam, remove the septa by a. pulling it through the contacts of the teeth. b. cutting the septum from the lingual and facial aspect. c. cutting each septum from the facial aspect and pulling the dam lingually. d. cutting each septum from the lingual aspect and pulling the dam facially. -- Correct Answer ✔✔ c. cutting each septum from the facial aspect and pulling the dam lingually
  4. In dentistry, preliminary impressions are used to fabricate a. crowns, fix partial dentures, removable partial dentures and complete dentures. b. study casts, orthodontic casts, custom trays, and mouthguards. c. only diagnostic and orthodontic casts. d. only custom trays and mouthguards. -- Correct Answer ✔✔ b. study casts, orthodontic casts, custom trays, and mouthguards
  5. What affect does heat have on alginate impression material? a. Increases expansion. b. Decreases shrinkage.