MN Dental Assisting Licensure
Paralleling
Film receptor is positioned parallel with the long axis of the enamel and critical beam is aimed
perpendicular to the movie receptor and the teeth axis.
Bisecting
An imaginary line is created between the long axis of the enamel and the movie receptor while
positioned on the lingual surface of the enamel, developing congruent proper triangles.
Foreshortening
Excessive vertical angulation "too steep"
Elongation
Insufficient vertical angulation "too flat"
Cone Cut
Film packet placement is incorrectly lined with the important beam
Overlapping
Incorrect horizontal angulation
Image distortion and angulation probelms
What are the risks of the bisecting technique?
Unexposed film
appears clean
black
Film has been exposed to light then it appears ....
Overexposed
appears darkish = ______ movie
,over exposed
Excessive publicity time,
immoderate KvP or excessive mA
causes ______________ movie
Underexposed
____________ film appears mild
underexposed movie
insufficient publicity time and insufficient KvP or inadequate mA cause....
Periapical
cut off apices, creased corners, angulation are all ______ errors
Bite-Wing mistakes
cone cut, movie placement or angulation are all what form of mistakes?
Film Bending
if the movie seems stretched of distorted what occured?
Creased film
black strains or thin radiolucent strains on corners or where film was creased are symptoms
of....
Phalangioma
whats it referred to as if a finger turned into located in the front of the receptor and a finger
seems on radiograph
Double publicity
a film was exposed two times...
Transferring
affected person, film or PID became ______ in the course of exposure
,opposite
____ film seems underexposed, showing the outer film wrapping tab on the top, just like railroad
tracks or a tire tune.
Youngsters are greater inclined, reproductive cells are maximum touchy
who and what a part of the frame is radiosensitive?
Radiation harm Latent length
The time frame among publicity to ionizing radiation and the advent of medical signs and
symptoms
somatic effect
if radiation damages tissues in a person so the high-quality of lifestyles is faded in that
character, that radiation has a ______ on that individual
radiosensitive
Lymphoid tissues
bone marrow
testes
intestines
immature reproductive cells
are all __________ organs
radioresistant
salivary glands
kidneys
liver
muscle tissue
nerve tissue
are all ____________ tissues and organs
important
skin
thyroid
lens of the attention
bone marrow
, are all _____ organs
radiation
exposure, dose and dose equal are 3 quantities of _________
Radiation measurements
Roentgen (R) older device
Radiation absorbed dose (RAD)
Roentgen equal guy (REM)
are all.....
(R) Roentgen
used to degree exposure of radiation into the air, measures the amount of radiation that comes
shape the quit of the PID
Only applies to gamma rays and xrays
RAD
measures the quantity of radiation absorbed via tissues
dose
the amount of strength absorbed by means of tissue
REM
dose equivalent measurement is used to examine biologic results of different kinds of radiation.
16 in over the 8 in because is produces much less divergence of the xray beam. Keeps the
beam concentrated on a specific region.
Which size PID is suggested and why
as a minimum 6 feet
how a long way far from the tubehead ought to the operator stand?
5.0 rem/12 months: maximum permissible dose
MPD
Paralleling
Film receptor is positioned parallel with the long axis of the enamel and critical beam is aimed
perpendicular to the movie receptor and the teeth axis.
Bisecting
An imaginary line is created between the long axis of the enamel and the movie receptor while
positioned on the lingual surface of the enamel, developing congruent proper triangles.
Foreshortening
Excessive vertical angulation "too steep"
Elongation
Insufficient vertical angulation "too flat"
Cone Cut
Film packet placement is incorrectly lined with the important beam
Overlapping
Incorrect horizontal angulation
Image distortion and angulation probelms
What are the risks of the bisecting technique?
Unexposed film
appears clean
black
Film has been exposed to light then it appears ....
Overexposed
appears darkish = ______ movie
,over exposed
Excessive publicity time,
immoderate KvP or excessive mA
causes ______________ movie
Underexposed
____________ film appears mild
underexposed movie
insufficient publicity time and insufficient KvP or inadequate mA cause....
Periapical
cut off apices, creased corners, angulation are all ______ errors
Bite-Wing mistakes
cone cut, movie placement or angulation are all what form of mistakes?
Film Bending
if the movie seems stretched of distorted what occured?
Creased film
black strains or thin radiolucent strains on corners or where film was creased are symptoms
of....
Phalangioma
whats it referred to as if a finger turned into located in the front of the receptor and a finger
seems on radiograph
Double publicity
a film was exposed two times...
Transferring
affected person, film or PID became ______ in the course of exposure
,opposite
____ film seems underexposed, showing the outer film wrapping tab on the top, just like railroad
tracks or a tire tune.
Youngsters are greater inclined, reproductive cells are maximum touchy
who and what a part of the frame is radiosensitive?
Radiation harm Latent length
The time frame among publicity to ionizing radiation and the advent of medical signs and
symptoms
somatic effect
if radiation damages tissues in a person so the high-quality of lifestyles is faded in that
character, that radiation has a ______ on that individual
radiosensitive
Lymphoid tissues
bone marrow
testes
intestines
immature reproductive cells
are all __________ organs
radioresistant
salivary glands
kidneys
liver
muscle tissue
nerve tissue
are all ____________ tissues and organs
important
skin
thyroid
lens of the attention
bone marrow
, are all _____ organs
radiation
exposure, dose and dose equal are 3 quantities of _________
Radiation measurements
Roentgen (R) older device
Radiation absorbed dose (RAD)
Roentgen equal guy (REM)
are all.....
(R) Roentgen
used to degree exposure of radiation into the air, measures the amount of radiation that comes
shape the quit of the PID
Only applies to gamma rays and xrays
RAD
measures the quantity of radiation absorbed via tissues
dose
the amount of strength absorbed by means of tissue
REM
dose equivalent measurement is used to examine biologic results of different kinds of radiation.
16 in over the 8 in because is produces much less divergence of the xray beam. Keeps the
beam concentrated on a specific region.
Which size PID is suggested and why
as a minimum 6 feet
how a long way far from the tubehead ought to the operator stand?
5.0 rem/12 months: maximum permissible dose
MPD
