test 5/14

a full mouth series of periapical radiographs taken on an edentulous patient will consist of

six anterior and eight posterior

a dark area between the teeth at the occlusal plane on a posterior bitewing indicates that the

patient did not bite down hard enough on the biteblock

which of these is classified as a semi-critical item

image receptor holder

each of the following may be protected with a plastic-barrier or protective sleeve to maintain infection control during the radiographic procedure EXCEPT one. Which one is the EXCEPTION

image receptor holder

to view an abscess on tooth number 25, the best radiographic exposure is a/an

periapical

an SDS would NOT need to be obtained for which of the following

lead foil

the portion of the primary beam that is limited by the collimator inside the position-indicating device is know as the

primary beam

human tissue/cells are mainly composed of

h2o

what changes must be made in the exposure factors when radiographs on a pediatric patient are exposed

exposure factors must be reduced

the process for manual processing is

developer, water, fixer, water

what does XCP stand for

extension cone paralleling

the anatomic position on a patients face at which the central ray is aimed is called

point of entry

excessive vertical angulation causes

foreshortened tooth structure

what is a safe distance to position the safelight above the work area in the darkroom

4 ft

how often should automatic processing solutions be changed

every 2 to 6 weeks

cells with a high reproductive rate are considered to be

radiosensitive

the most important step the dentist can take in protecting patients from x-radiation is to

properly prescribing radiographs

radiation that impacts future generations has what kind of effect

genetic effect

what is the second step involved in manually processing dental radiographs

rinsing

which of the following structures will appear the MOST radiopaque on a radiograph choice from choices given

amalgam resortation

infection control techniques during radiographic procedures in the office include:

1. the technician should wear gloves while exposing radiographs

2. the technician should wear gloves while processing radiographs

3. the technician should wear a mask while exposing radiographs

4. the technician should wear protective safety glasses while exposing radiographs

1 and 2 only

all cells in the body EXCEPT reproductive cells are refered to as ___

somatic cells

when mounting radiographs, the mount must be labeled with the following

patients name, date radiographs were taken, number of films taken (all of the above)

if you mount the radiographs with the raised portion of the dot facing you, the following is true:

1. this is called lingual mounting

2. this is called labial mounting

3. the patients left side is on your right

4. the patients right side is on your right

2 and 3 only

which type of film would be used to view tooth crown, roots, and surrounding tissues

periapical exposure

the international unit Sv (Sievert) is also known as

Rem

the basic unit of exposure to radiation is represented as roentgen (R), which is also known as

C/kg

cumulative effect describes the

effects of continual exposure to radiation

the appropriate corrective action for a periapical radiograph of the maxillary molar area that did not image the third molar

move the image receptor back further in the oral cavity

which of the following is the earliest detectable of excessive exposure to radiation

erytnema

the edentulous full mouth series consist of approximately 14 radiographs, ____ radiographs are never taken in an edentulous FMX

bitewings

assuming proper kVp has been used, light films are caused by

underdevelopment and underexposure (both b and c)