RDH FINAL CURRENT EXAM 2024-2025
1. The form of radiograph that shows the entire tooth, including the crown, roots,
and jawbone, is called:
a. Biting x-rays
b. Periapical X-Ray
C. Occlusal x-ray
d. Tomogram - ANSWER B. Periapical X-Ray
2. A bitewing radiograph is effective in identifying any of the following, except:
a. impacted tooth.
b. dental decay.
c. periodontal bone loss.
d) Gum disease - ANSWER A: impacted tooth.
3. A full-mouth survey often contains:
a. 14 periapical views, 4-6 bitewings.
b. Ten periapical views and eight bitewings.
Circa 14 periapical views, 4-6 bitewings, and a panoramic
d. 8 periapical views and 4 bitewings Answer: 14 periapical views with 4-6
bitewings.
4. The optimal radiograph for diagnosing the temporomandibular joint (TMJ) is:
a) panorama
B. Periapical
C. Sialography
,arthrography - ANSWER D.
5. What form of radiograph does an orthodontist utilize to assist with treatment
planning?
A. Tomography
b. Sialography
C. Cephalometric
d. occlusal - Answer: C. cephalometric.
6. Which of the following is true about the use of lead aprons and thyroid collars?
a. Wearing the lead aprons and thyroid collars listed below will help avoid thyroid
cancer.
a. The apron should extend from the neck to just above the patient's knees.
c. Lead aprons should be thoroughly cleaned and folded in thirds between patients'
use.
d. The thyroid collar is optional for older individuals past reproductive years -
ANSWER B. The apron should cover from the neck just over the patient's knees
7. Where is the best place to store dental film?
a. in a cold and dry closet.
b. In a refrigerator
C. in the treatment room.
d. Near the x-ray machine. - Answer A: in a cold, dry closet.
A dental assistant is exposed to work-related hazards. A patient's blood has
splattered into the employee's eye. Which of the following is the proper action to
take?
, a. Immediately obtain blood from the patient and test it for HIV and HBV.
b. demand the employee's own blood to be tested immediately for HIV and HBV.
b. Document the incidence, including the source, employee, route of exposure, and
how it occurred.
d. examine the patient's chart and decide if risk factors exist to warrant further
testing for the employee - ANSWER C. Document the incidence, identifying the
source, the employee, the route of exposure, and how it happened.
Which of the following is false about handwashing?
a. For noticeably dirty hands, alcohol-based hand gel might be used instead of soap
and water.
a. Fingerprints, thumbs, and between fingers are three areas that are frequently not
thoroughly cleaned with handwashing.
c. The alcohol percentage in hand gel or foam should be between 60% and 95%.
d. After washing, rinse hands with cool water to help close the pores in the skin -
ANSWER A. On obviously dirty hands, use alcohol-based hand gel instead of soap
and water.
A new patient has recently relocated to the region and arrives for her first visit at
the dentist business. She is 6 months pregnant. She is complaining about a
toothache. She does not carry her dental records with her. Which of the following
would be the best option for getting dental X-rays?
a. Obtain a full mouth and panoramic survey to create a baseline.
b. just x-ray the area she is complaining about, using the lead apron and thyroid
collar as protection.
c. avoid any x-rays due to pregnancy.
d. acquire a full series of bitewing x-rays to look for other areas of concern -
ANSWER B. Simply x-ray the area she is complaining about while wearing the
lead apron and thyroid collar for protection.
1. The form of radiograph that shows the entire tooth, including the crown, roots,
and jawbone, is called:
a. Biting x-rays
b. Periapical X-Ray
C. Occlusal x-ray
d. Tomogram - ANSWER B. Periapical X-Ray
2. A bitewing radiograph is effective in identifying any of the following, except:
a. impacted tooth.
b. dental decay.
c. periodontal bone loss.
d) Gum disease - ANSWER A: impacted tooth.
3. A full-mouth survey often contains:
a. 14 periapical views, 4-6 bitewings.
b. Ten periapical views and eight bitewings.
Circa 14 periapical views, 4-6 bitewings, and a panoramic
d. 8 periapical views and 4 bitewings Answer: 14 periapical views with 4-6
bitewings.
4. The optimal radiograph for diagnosing the temporomandibular joint (TMJ) is:
a) panorama
B. Periapical
C. Sialography
,arthrography - ANSWER D.
5. What form of radiograph does an orthodontist utilize to assist with treatment
planning?
A. Tomography
b. Sialography
C. Cephalometric
d. occlusal - Answer: C. cephalometric.
6. Which of the following is true about the use of lead aprons and thyroid collars?
a. Wearing the lead aprons and thyroid collars listed below will help avoid thyroid
cancer.
a. The apron should extend from the neck to just above the patient's knees.
c. Lead aprons should be thoroughly cleaned and folded in thirds between patients'
use.
d. The thyroid collar is optional for older individuals past reproductive years -
ANSWER B. The apron should cover from the neck just over the patient's knees
7. Where is the best place to store dental film?
a. in a cold and dry closet.
b. In a refrigerator
C. in the treatment room.
d. Near the x-ray machine. - Answer A: in a cold, dry closet.
A dental assistant is exposed to work-related hazards. A patient's blood has
splattered into the employee's eye. Which of the following is the proper action to
take?
, a. Immediately obtain blood from the patient and test it for HIV and HBV.
b. demand the employee's own blood to be tested immediately for HIV and HBV.
b. Document the incidence, including the source, employee, route of exposure, and
how it occurred.
d. examine the patient's chart and decide if risk factors exist to warrant further
testing for the employee - ANSWER C. Document the incidence, identifying the
source, the employee, the route of exposure, and how it happened.
Which of the following is false about handwashing?
a. For noticeably dirty hands, alcohol-based hand gel might be used instead of soap
and water.
a. Fingerprints, thumbs, and between fingers are three areas that are frequently not
thoroughly cleaned with handwashing.
c. The alcohol percentage in hand gel or foam should be between 60% and 95%.
d. After washing, rinse hands with cool water to help close the pores in the skin -
ANSWER A. On obviously dirty hands, use alcohol-based hand gel instead of soap
and water.
A new patient has recently relocated to the region and arrives for her first visit at
the dentist business. She is 6 months pregnant. She is complaining about a
toothache. She does not carry her dental records with her. Which of the following
would be the best option for getting dental X-rays?
a. Obtain a full mouth and panoramic survey to create a baseline.
b. just x-ray the area she is complaining about, using the lead apron and thyroid
collar as protection.
c. avoid any x-rays due to pregnancy.
d. acquire a full series of bitewing x-rays to look for other areas of concern -
ANSWER B. Simply x-ray the area she is complaining about while wearing the
lead apron and thyroid collar for protection.
