Low-dose tomographic techniques for dental implant planning.

• Image quality in preimplant computerized tomography (CT) examinations made with different radiation doses (40 to 280 mAs) and scanning modes (standard and helical axial, 15-degree angled, and frontal) and in conventional spiral tomography (Scanora) was compared. Mandibular canal and alveolar bone crest visibility was evaluated in images from mandibular jaw segments. Visibility was unaffected by radiation dose in CT examinations except in frontal scanning, where a small actual difference was statistically significant. Differences among CT scanning modes and between CT and conventional spiral tomography were highly significant. Low-dose mandibular preimplant tomography can be performed with CT using lower-than-normal radiation doses or with conventional spiral tomography.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Odontologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Dentistry (hsv//eng)

Nyckelord

Alveolar Process

radiography

Bone Resorption

radiography

Cadaver

Dental Implants

Dental Prosthesis Design

Female

Humans

Male

Mandible

radiography

surgery

Mandibular Diseases

radiography

Patient Care Planning

Radiation Dosage

Radiographic Image Enhancement

methods

Tomography

X-Ray

methods

Tomography

X-Ray Computed

methods

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