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- Title
Impact of the blooming artefact on dental implant dimensions in 13 cone-beam computed tomography devices.
- Authors
Wanderley, Victor Aquino; de Faria Vasconcelos, Karla; Leite, Andre Ferreira; Pauwels, Ruben; Shujaat, Sohaib; Jacobs, Reinhilde; Oliveira, Matheus L.
- Abstract
Background: The purpose of this study was to objectively assess dimensional alteration (blooming artefact) on dental implant using 13 cone-beam computed tomography (CBCT) devices adjusted to device-specific scanning protocols and to assess whether subjective adjustment of brightness and contrast (B&C) could alter its visualization. Methods: An anthropomorphic phantom containing a dental implant was scanned in 13 CBCT devices adjusted to three scanning protocols: medium-FOV standard resolution, small-FOV standard resolution, and small-FOV high resolution. The diameter of the implant was measured at five levels, averaged, and compared with those from a reference standard industrial CT image. B&C adjustments were performed and measurements were repeated. The intraclass correlation coefficient assessed the reliability of the measurements and general linear mixed models were applied for multiples comparisons at a 95% confidence interval. Results: Implant diameter obtained from small-FOV high-resolution protocols in most CBCT devices was not significantly different when compared to that from the reference (p > 0.05). For standard protocols, significant dimensional alteration of the implant ranging from 23 to 34% (0.67 to 1.02 mm) was observed in 9 CBCT devices for small-FOV scanning (p < 0.05), and in 8 CBCT devices for medium-FOV scanning, implant dimensional alteration ranged significantly from 21 to 35% (0.62 to 1.04 mm). After B&C adjustments, dimensional alteration was reduced for several of the CBCT devices tested (p < 0.05). Conclusions: The visualization of the implant dimensional alteration differed between CBCT devices and scanning protocols with an increase in diameter ranging from 0.27 to 1.04 mm. For most CBCT devices, B&C adjustments allowed to reduce visualization of implant blooming.
- Subjects
CONE beam computed tomography; DENTAL implants; COMPUTED tomography; INTRACLASS correlation; MULTIPLE comparisons (Statistics)
- Publication
International Journal of Implant Dentistry, 2021, Vol 7, Issue 1, p1
- ISSN
2198-4034
- Publication type
Article
- DOI
10.1186/s40729-021-00347-6