Impact of Cone Beam Computed Tomography Dose in Pre-Surgical Implant Analysis

The Open Dentistry Journal
Nabil El SahiliThomas Fortin

Abstract

Cone-Beam Computed Tomography (CBCT) produces vital information required for the accurate and prudent placement of dental implants. Lack of standardization between CBCT machines may result in unsafe patient exposure to harmful radiation; higher doses are not necessarily associated with improved image quality. The study aimed to assess the influence of low- and high-dose milliamperage settings on CBCT images for objective and subjective implant planning. Two dry skulls (4 hemi-maxillary segments of the maxilla and 4 hemi-maxillary segments of the mandible) were scanned under low (2 mA) and high (6.3 mA) dosage settings using a CBCT (Carestream CS 9300). Cross-sectional slices of both image qualities were evaluated by five expert clinicians, for image quality for implant planning and objective bone measurements. There were no significant differences in bone measurements taken on high or low dose images (p > 0.05). In qualitative image assessments, assessment and image quality for almost all observers were independent of each other. For planning posterior mandibular implant placement, increased dosage improved concordance and kappa values between low and high dose images. Reduction in milliamperage did not affect diagnostic image ...Continue Reading

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Methods Mentioned

BETA
imaging techniques

Software Mentioned

Carestream Health ( 3D
STATA

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