Technique Flashcards
A ________ X or vertical line through a tooth on an odontogram is used for congenitally missing teeth. ________ is used for previously extracted teeth.
Black, blue
An outlined surface in blue means what?
Composite resin
A filled in blue surface means what?
Amalgam
A Cross hatch surface in blue means what?
Gold
An outlined tooth in blue means what?
Porcelain/ceramic crown
What color is used for treatment planning?
Red
What are 3 ways to maximize sharpness and resolution of a radiograph?
1-Small while effective focal spot
2-Increase distance from focal spot to object
3-Minimize distance from object to image receptor
*also helps capture accurate size
What two ways can image shape distortion be minimized?
1-Film parallel to long axis of tooth
2-Central ray perpendicular to object and image receptor
What happens when the central beam is perpendicular to the image receptor but the object is not?
Foreshortening
What happens when the central beam is perpendicular to the object but not the image receptor?
Elongation
What are two techniques to minimize distortion?
1-Paralleling technique (preferred)
2-Bisecting angle technique
Determining if an object on the radiograph is buccal or lingual or in the same plane of the tooth is done using what technique?
The SLOB rule (Same Lingual- Opposite Buccal)
Where should the central x-ray point when taking maxillary central incisor regions?
Tip of the nose
Where should the central x-ray point when taking maxillary Cuspid region?
Corner of the nose
Where should the central x-ray point when taking maxillary bicuspid region?
Down from the pupil to mid cheek area
