PANORAMIC IMAGING Flashcards

Question

types of intensifying screens

Answer 1

Calcium tungstate-emits blue light (faster) | Rare earth screens-emits green light

Answer 2

It holds the Extraoral film and intensifying film

Answer 3

Both the digital modalities allow the user to perform post processing modifications on the image including linear contrast and density adjustments, black/white reversal, magnification, edge enhancement and color rendering.

Answer 4

DICOM(Digital Imaging and Communication in | Medicine)

Answer 5

-Patient must be as straight as possible. – The patient’s neck should be extended. – Anterior teeth should be in the notch on the bite stick. -The midsagittal plane should be perpendicular to the floor and aligned with the vertical center of the chin rest. -Frankfort plane should be parallel to the floor, thus obtaining the correct position for the occlusal plane. – Tragus of the ear must be aligned with the plastic guides. -center the lower border of the mandible on the chin rest and is equidistant from each side

Answer 6

``` As a substitute for full mouth intraoral periapical radiographs Evaluation of trauma Evaluation of tooth development in mixed dentition for children Orthodontic treatment Developmental anomalies Third molars  Large lesions like cyst, tumors. Detection of fractures  Generalized disease  Inability to tolerate intraoral films  Assessment for surgical procedure ```

Answer 7

 Panoramic film are not as Defined or sharp as the images seen on intraoral films. Can’t use where require  Fine anatomical details  Small carious lesions  Fine structures of the marginal periodontium  Periapical diseases  For equal magnification

Answer 8

 Well-tolerated by patients  Minimal time to expose when compared to intraoral radiographs  Broad anatomical coverage  Relatively low patient dose  For object localization in conjunction with occlusal radiography

Answer 9

 Resolution is not as good as intraoral films.  This results in loss of detail  Superimposition of real/double images  Only objects in focal trough are seen clearly  Distortion of image – Overlapped teeth – Magnification – Objects of interest outside of focal trough are distorted and blurred

Answer 10

20 - 30% horizontal and vertical

Answer 11

```  Mastoid process  styloid process  External auditory meatus  mandibular fossa  Articular eminence  Lateral pterygoid plate  Pterygomaxillary fissure  Maxillary tuberosity  Infraorbital foramen  Orbit  Incisive canal and foramen  Anterior nasal spine  Nasal cavity  Nasal septum  Hard palate  Maxillary sinus and its floor  Zygomatic process of maxilla  Zygoma  Hamulus  Dentition ```

Answer 12

```  Mandibular condyle  Condylar notch  Coronoid process  Ramus  Mandibular foramen  Lingula  Mandibular canal  Mental foramen  Mental ridge  Mental fossa  Lingual foramen  Genial tubercle  Inferior border of mandible  Mylohyoid ridge  Internal oblique ridge  External oblique ridge  Angle of the mandible  dentition ```

Answer 13

Nasopharyngeal Palatoglossal Glossopharyngeal

Answer 14

``` Tongue Ear lobes nasal cartilage soft palate nasolabial folds soft palate and uvula lip line ```

Answer 15

```  Cervical vertebrae  Body, condyle and ramus of the contralateral side of the mandible  Palate  Chin rest  (R)or(L) markers of the machine  Neck chains  Napkin chains  Earrings, tongue rings  Shoulder straps of protective apron ```

Answer 16

-- hard palate – soft palate – hyoid bone