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Occlusal & Localizat

Dental Radiography -- Principles and Techniques

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
Created by: summerbradley