Term | Definition |
Occlusal Technique | used to examine large areas of MX and MD |
Purpose of Occlusal Technique | - used in conjunction w BW and PA
- locate retained roots
- locate supernumerary, unerupted, and impacted teeth
- foreign bodies
- salivary stones
- MX sinus
- fractures |
Principles of Occlusal | 1. white side facing the arch that is being exposed
2. receptor placed btwn occlusal surfaces
3. PT gently bites on surface of receptor |
MX Occlusal Projections | 1. Topographic -- examine palate, and ant teeth
2. Lateral -- examine palatal roots of molar
3. Pediatric -- examine ant teth of MX ... 5yrs or younger |
MD Occlusal Projections | 1. Topographic -- examine ant teeth of MD
2. Cross-Sectional -- examine buccal and lingual aspects of MD
3. Pediatric -- examine ant teeth of MD in kids 5yrs or younger |
VA for Occlusal Technique | MX top 65 MD top -55
MX lat 60 MD lat 90
MX ped 60 MD ped -55 |
Localization Technique | locate the position of a tooth or object in the jaw |
Purpose of Localization Technique | to visualize if object is buccal or lingual
to visualize depth of object |
Types of Localization -- Buccal Object Rule | - orientation of structures using 2 radiographs exposed at different angulations
- Images compared |
Types of Localization -- SLOB Rule | - image in 2nd exposure moved in same direction as the PID, object is lingual
- image in 2nd exposure moved in opposite direction as PID, object is buccal
Same= Lingual Opposite = Buccal -- SLOB |
Types of Localization -- Right Angle Technique | - orientation of structure using 2 radiographs
- PA taken using proper technique
- Occlusal exposed directing CR at 90 degrees
- Used for locating objects in MD |