General Chairside Exam Questions and
Answers
Excavating burs #1/4 to 10.
Opens pit and fissure of Class I cavities or pulp chamber for RCT.
Remove decay from all teeth. CORRECT ANSWERS Round burs
Excavating burs #33 1/2 to 39.
Undercuts or retention in cavity preparations of the pulpal wall.
Removes decay from all teeth. CORRECT ANSWERS Inverted cone burs
Cutting burs #556 to 564. CORRECT ANSWERS Straight fissure cross cut bur
Cutting burs # 699 to 708 CORRECT ANSWERS Tapered fissure cross cut bur
Cutting burs #55 to 64. CORRECT ANSWERS Straight fissure plain cut bur
Cutting burs #169 to 172. CORRECT ANSWERS Tapered fissure plain cut bur
Cutting burs #330 to 332. CORRECT ANSWERS Pear bur
Cutting bur #956 to 959.
Endodontic openings.
Shoulder of crown preps. CORRECT ANSWERS End cutting bur
Cutting bur # 14. CORRECT ANSWERS Wheel bur
Type of bur shanks that fits into a straight hand piece. CORRECT ANSWERS Long
straight
Type of bur shanks that fits into a contra angle. CORRECT ANSWERS Latch type
Type of bur shank that fits into the hi speed handpiece. CORRECT ANSWERS
Friction grip
Finishing burs #1172.
Removes excess bonding. CORRECT ANSWERS Flame finishing bur
, Using slowspeed handpiece during coronal polish is what classification do motion?
CORRECT ANSWERS Class III - movements of fingers, wrist and elbow
Reaching for an item within mobile unit is what classification of motion? CORRECT
ANSWERS Class IV - movement of entire arm and shoulder
Moving radiology unit is what classification of motion? CORRECT ANSWERS Class
IV - movement of entire arm and shoulder
Answering phone is under of what classification of motion? CORRECT ANSWERS
Class IV - movement of entire arm and shoulder
Bending over and retrieving material from tub or drawer is under of what classification of
motion? CORRECT ANSWERS Class V - movement of entire upper torso.
Which of the following is TRUE about the administration of nitrous oxide and oxygen
(N2O/O2)?
A. The patient should be encourage to mouth breathe in order to maximize the
effectiveness of N2O/O2
B. Once the dosage is determined for N2O/O2, the same dosage can be used at
subsequent dental visits
C. The N2O/O2 procedure should end with the administration of 100% pure oxygen for
at least an hour
D. Administration of N2O/O2 should begin 100% pure oxygen CORRECT ANSWERS
D: Nitrous oxide/oxygen (N2O/O2) analgesia is also known as inhalation sedation. It
has been in use since 1844. This type of sedation is administered through a nosepiece
and is fast acting. N2O/O2 provides a very relaxing and good experience for the patient
but can become habit forming if abused. A tightly fitting face mask should be used for
administration and the patient should be instructed not to talk or breathe through the
mouth to prevent nitrous oxide (N2O) from escaping. The process starts with the
administration of pure oxygen to establish the patient's tidal volume. N2O is then titrated
to achieve appropriate results. The dosage of N2O can vary from one visit to the next;
therefore, the dose must be reestablished each time. The N2O/O2 analgesia process
should conclude with the administration of pure oxygen for approximately 3-5 minutes.
The patient should be evaluated for the presence of headache, lethargy, or dizziness. If
any of these symptoms are present, the patient should continue to receive 100%
oxygen until the symptoms normalize.
When assisting with the delivery of a partial denture, which of the following is NOT
something a dental assistant would be responsible for?
A. Adjusting the tension on the retainer
B. Disinfecting the prosthesis before it is placed in the patient's mouth
C. Placing articulating paper in the patient's mouth in order to check the occlusion
Answers
Excavating burs #1/4 to 10.
Opens pit and fissure of Class I cavities or pulp chamber for RCT.
Remove decay from all teeth. CORRECT ANSWERS Round burs
Excavating burs #33 1/2 to 39.
Undercuts or retention in cavity preparations of the pulpal wall.
Removes decay from all teeth. CORRECT ANSWERS Inverted cone burs
Cutting burs #556 to 564. CORRECT ANSWERS Straight fissure cross cut bur
Cutting burs # 699 to 708 CORRECT ANSWERS Tapered fissure cross cut bur
Cutting burs #55 to 64. CORRECT ANSWERS Straight fissure plain cut bur
Cutting burs #169 to 172. CORRECT ANSWERS Tapered fissure plain cut bur
Cutting burs #330 to 332. CORRECT ANSWERS Pear bur
Cutting bur #956 to 959.
Endodontic openings.
Shoulder of crown preps. CORRECT ANSWERS End cutting bur
Cutting bur # 14. CORRECT ANSWERS Wheel bur
Type of bur shanks that fits into a straight hand piece. CORRECT ANSWERS Long
straight
Type of bur shanks that fits into a contra angle. CORRECT ANSWERS Latch type
Type of bur shank that fits into the hi speed handpiece. CORRECT ANSWERS
Friction grip
Finishing burs #1172.
Removes excess bonding. CORRECT ANSWERS Flame finishing bur
, Using slowspeed handpiece during coronal polish is what classification do motion?
CORRECT ANSWERS Class III - movements of fingers, wrist and elbow
Reaching for an item within mobile unit is what classification of motion? CORRECT
ANSWERS Class IV - movement of entire arm and shoulder
Moving radiology unit is what classification of motion? CORRECT ANSWERS Class
IV - movement of entire arm and shoulder
Answering phone is under of what classification of motion? CORRECT ANSWERS
Class IV - movement of entire arm and shoulder
Bending over and retrieving material from tub or drawer is under of what classification of
motion? CORRECT ANSWERS Class V - movement of entire upper torso.
Which of the following is TRUE about the administration of nitrous oxide and oxygen
(N2O/O2)?
A. The patient should be encourage to mouth breathe in order to maximize the
effectiveness of N2O/O2
B. Once the dosage is determined for N2O/O2, the same dosage can be used at
subsequent dental visits
C. The N2O/O2 procedure should end with the administration of 100% pure oxygen for
at least an hour
D. Administration of N2O/O2 should begin 100% pure oxygen CORRECT ANSWERS
D: Nitrous oxide/oxygen (N2O/O2) analgesia is also known as inhalation sedation. It
has been in use since 1844. This type of sedation is administered through a nosepiece
and is fast acting. N2O/O2 provides a very relaxing and good experience for the patient
but can become habit forming if abused. A tightly fitting face mask should be used for
administration and the patient should be instructed not to talk or breathe through the
mouth to prevent nitrous oxide (N2O) from escaping. The process starts with the
administration of pure oxygen to establish the patient's tidal volume. N2O is then titrated
to achieve appropriate results. The dosage of N2O can vary from one visit to the next;
therefore, the dose must be reestablished each time. The N2O/O2 analgesia process
should conclude with the administration of pure oxygen for approximately 3-5 minutes.
The patient should be evaluated for the presence of headache, lethargy, or dizziness. If
any of these symptoms are present, the patient should continue to receive 100%
oxygen until the symptoms normalize.
When assisting with the delivery of a partial denture, which of the following is NOT
something a dental assistant would be responsible for?
A. Adjusting the tension on the retainer
B. Disinfecting the prosthesis before it is placed in the patient's mouth
C. Placing articulating paper in the patient's mouth in order to check the occlusion
