04 Radiographs

8/22/2019 04 Radiographs

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Radiographs


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Intra-oral radiographic

information Root length

Root proximity

Root form

Presence or absence of periapical lesions

Estimate of remaining alveolar bone

support Local etiologic factors


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Furcations -- maxillary

molars Buccal - may be obscured due to

superimpostion

Mesial and distal

The pointer


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Mesial and distal furcations


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Not a

replacement foran

examination!!!


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Limitations

Does not show periodontal pockets

Does not show morphology of the

defects

Misses buccal and lingual deformities

Does not distinguish between treated

and untreated case


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Treatment status

AfterBefore


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Treatment status

AfterBefore


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Limitations

Does not show periodontal pockets

Does not show morphology of thedefects

Misses buccal and lingual deformities

Does not distinguish between treatedand untreated case

Does not show mobilityDoes not show hard and soft tissue

relationships


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Benefits

Can show relationship of crest

Can help monitor disease progression

Indicates areas for further examination

Documents crown - root ratio

Evaluation of deposits and margins


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Types of surveys

Periapical films

Bite-wing films

Horizontal

Vertical

Panoramic films

CT Scans


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CT Scans


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How Cone Beam CT WorksX-ray source

X-ray source

Detector

Fanof X-rays

Coneof X-rays

Detector


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Effective Dose

Comparison

i-CAT 20 second scan: 68 uSvExposure is in Pulsed mode, actual exposure time isabout 3.5 seconds for a 20 second scan

i-CAT 10 second scan: 34 uSv

Daily background: 8 uSv

Panoramic (Average): 10-15 uSv

Digital Panoramic 4.7 14.9 uSv

Highest Film Pan 26 uSv

Full mouth series: 150 uSv

Medical CT 1200-3300uSv*kk

Dr. Sharon Brooks, Dept. of Radiology, University of Michigan

*Dr. Stuart White, Dept. of Radiology, UCLA


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CT Scans


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for Implants


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3-D Implant

Visualization and Planning


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for Orthodontics

DICOM 3 3rdparty software. Please call for details


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for Orthodontics



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for Orthodontics



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What treatment?

Osseous surgery

Scaling and root planing

Curettage Osseous grafting

Root resection surgery


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What treatment

Osseous surgery


Curettage

Osseous grafting



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What treatment

Osseous surgery


Curettage

Osseous grafting



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What treatment

Osseous surgery


Curettage

Osseous grafting



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Limitations

An adjunct

Not a substitute

04 Radiographs

Documents

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