- What is
the occlusal technique used for?
The occlusal technique is used to examine large areas of the maxilla or
mandible.
- Which
size film is used for the occlusal technique?
For adult: film No.4, for children: film No.2
- List five
purposes for using the occlusal technique?
1. To locate
retained root of extracted teeth
2. To locate supernumerary, unerupted teeth or impacted teeth
3. To locate foreign objects in maxilla or mandible
4. To locate salivary stones in submandibular salivary duct
5. To locate and evaluate the extent of lesions, like cysts, tumors or
malignancies
- List
three principles for using the occlusal technique?
1. The film is positioned with the white side facing the arch that is being
exposed
2. The film is being placed in the mouth between the occlusal surfaces of
the maxillary and mandibular teeth.
3. The film is stabilized when the patient gently bites on the surface of
the film
- Describe
the patient’s head position for occlusal radiography of maxillary anatomy?
The patients head must be positioned so that maxillary arch is parallel
with the floor and the midsagittal plane is perpendicular to the floor
- Describe
the patient’s head position for occlusal radiography of mandibular anatomy?
The patient’s
head must be reclined and positioned so that the occlusal plane is
perpendicular to the floor.
- What is
the standard amount of tube angle required for the maxillary topographic
occlusal projection?
+65 degrees of vertical
angulation
- What is
the name used to describe a method to locate the position of a tooth in
the jaws?
Localization
technique.
- List
three examples where the localization technique may be used?
1. To locate
foreign bodies
2. To locate impacted teeth
3. To locate retained roots
- What are
the two basic techniques used to localize objects?
1. The buccal
object rule
2. The right angle technique
- Which
angulation is changed when attempting to locate vertically aligned
objects, such as root canals?
Horizontal
angulation.
- How can
you determine if an object is lingual or buccal relative to superimposed
teeth?
If on second
radiograph object has moved in the direction opposite the shift of the
PID, then the object is buccal to the superimposed teeth. If the object
has moved in the same direction as the shift of PID, then the object is
lingual to the teeth.
- What does
acronym SLOB stand for?
SLOB:
same=lingual, opposite=buccal
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