Mandible - Oblique

Radiographic Positioning

Adult

Other related pages of interest Applied Radiography Radiographic Anatomy Radiographic Protocols

Name of projection	Mandible - Oblique (Left / Right)
Area Covered	Rami, condylar and coronoid processes, body and mentum of mandible nearest to IR
Pathology shown	Fractures, neoplastic and inflammatory processes
Radiographic Anatomy	Mandible Radiographic Anatomy
IR Size & Orientation	18 x 24cm Portrait
Film / Screen Combination	Regular (CR and DR as recommended by manufacturer)
Bucky / Grid	Moving or Stationary Grid
Filter	No
Exposure	60 kVp 16mAs
FFD / SID	100cm
Central Ray	CR angled 25° cephalad Direct CR to exit mandibular region of interest
Collimation	Collimate closely to mandible
Markers	Anterior and Inferior Marker orientation AP
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Suspend
Positioning	Patient is standing or sitting next to the upright bucky Place head in a lateral position with side of interest against IR If possible have patient close mouth and bring teeth together Extend neck (to clear the mandible of the cervical spine) Rotate the head in an oblique direction (the degree of obliquity depend upon the section of manible that is of interest) - the area of interest should be positioned parrallel to the IR Head in true lateral position demonstrates ramus 30° rotation demonstrates body 45 ° rotation demonstrates mentum 10° to 15° rotation provides a general survey of mandible CR angled 25° cephalad Direct CR to exit mandibular region of interest
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes