Pt Prep/Misc.
These are the steps taken when preparing a patient for having an xray taken.
This is how far a film should extend beyond the occlusal plane.
The film size for a panoramic xray is ______ x ______.
Bone, enamel, torus/tori, calculus, root tips, zygomatic process (U shaped), lamina dura, and the cortical plate all appear ______ in films.
The maxillary sinus appears ________ on maxillary molar radiographs.
What is radiopaque?
What is radiolucent?
Exposure times for digital radiography is 50-80% (more or less) than traditional radiography.
For a panoramic xray, the operator will remove these things.
This is the typical number of films exposed for an FMX.
**BTC= 18 Films
The Frankfort plane is an imaginary line that runs from the _______ to the ______.
The _____ ______ appears as a vertical radiopaque partition that divides the nasal cavity.
The median palatine suture appears as a thin _____ line between the maxillary incisors.
What is radiolucent?
This technique is used to examine large areas of the upper or lower jaws.
This technique is most helpful in locating a stone or calculus in the Wharton's duct.
For a patient who has a bad gag reflex, these are some things you can do to help avoid triggering it.
These are some things you can apply to the patient to help with a gag reflex.
What is spray topical, salt on the back of the tongue, wiggle your toes/breath through your nose?
*When all else fails...take a Panoramic Xray!
Having the central ray directed at right angles to an imaginary line that bisects the angle formed by the long axis of the tooth and the plane of film is termed this.
Having the film parallel to the long axis of the tooth, having the PID directed perpendicular to the tooth and film, and recommending having a longer target-film distance is termed this.
What is the bisecting technique? *disadvantage to the bisecting technique is dimensional distortion
What is the paralleling technique?
In a Panoramic Xray:
If a patient's chin is up too high, this is the outcome.
If a patient's chin is too low, this is the outcome.
What is a smile?
A small circular radiolucency below the mandibular central apices is the ________.
The radiopaque circular area below the apices of the mandibular incisors is the __________.
What are the genial tubercles?
True or False: You do not need to take xrays on edentulous portions of a patient's mouth.
*Xrays are used to detect root tips, bone levels, impacted teeth, and cysts.
True or False: The exposure time needs to be decreased for children and increased for an adult.
**Children require less exposure time than an adult
Causing a tooth to look short and squatty is classified at this. This is what causes it.
Causing a tooth to look stretched out is classified as this. This is what causes it.
What is elongation caused by not enough vertical angulation?
**Vertical angulation can appear different due to anatomic differences in patients.True or False: Rare earth intensifying screens are recommended because they require less radiation exposure.
A long, narrow, and radiolucent area below the roots of the mandibular molars is this.
A radiopaque band on the upper portion of the mandibular molar roots is this.
The ______ _________ can be seen as a radiopaque bulge distal to the third molar on a maxillary molar film.
The _____ ______ is a trangular radipacity over or inferior to the maxillary tuberosity region.
What is the external oblique ridge?
What is the maxillary tuberosity?
What is the coronoid process?
Excessive bending of a film can cause this to show up on your film.
The _____ to _____ distance must be increased to keep the film parallel with the long axis of the tooth when using the paralleling technique.
This is the type of xray that shows soft tissue of the face.
This is the type of equipment required for exposing extraoral xrays.
This type of exposure is used to diagnose areas of the TMJ.
What are special machines, intensifying screens, and holders or cassettes?
What is a transcranial projection?
True or False: The SLOB rule depends on a vertical image shift when trying to locate vertically aligned images. An object to the lingual of the reference object will move in the same direction as the shift.
**The SLOB (buccal object) rule depends on a horizontal image shift when trying to locate vertically aligned images. An object to the buccal of the reference object will move in the opposite direction as the shift.
If you are taking an xray to see the entire maxillary and mandibular areas in one xray, this is the type you need to take.
If you need to detect interproximal caries, you must also take this type of xray.
What are bitewing xrays?