radiology

what does the term occlusal refer to?

chewing surfaces of posterior teeth
what size film is recommended for use with the occlusal technique in the adult patient

size 4
what size film is recommended for use with the occlusal technique in the child patient with a primary dentition?

size 2
how is the patient's head positioned before exposing a maxillary occlusal film?

upper arch parallel to the floor
what are the uses for the occlusal film? (10)
- locate retained roots
- locate supernumerary, unerupted or impacted teeth
- locate foreign bodies
- locate salivary stones
- locate and evaluate extent of lesions
- evaluate boundaries of maxillary sinus
- evaluate fractures of maxilla or mandible
- aid in examination of pt with limited jaw opening
- measure changes in size and shape of maxilla or mandible
state the vertical angulation used for the maxillary topographic occlusal projection

+65 degrees
state the vertical angulation used for the maxillary lateral occlusal projection

+60 degrees
state the vertical angulation used for the mandibular topographic occlusal projection

-55 degrees
state the vertical angulation used for the mandibular cross-sectional occlusal projection

90 degrees
state the vertical angulations used for the maxillary and mandibular pediatric occlusal projections
- maxillary= +60 degrees
- mandibular= -55 degrees

Author

sweetpea281

50289

Card Set

radiology

Description

chapter 21 quiz qestions

Updated

2010-11-17T23:05:03Z

Show Answers