Efficacy of a Metal Artifact Reduction Algorithm in CBCT Images of Teeth With Ceramic Brackets With/Without Coated Archwires: An In Vitro Study

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Clinical and Experimental Dental Research Pub Date : 2025-03-16 DOI:10.1002/cre2.70112

Parisa Soltani, Mariangela Cernera, Marzie Kachuie, Amirhossein Moaddabi, Mehran Khoramian, Gianrico Spagnuolo, Niccolò Giuseppe Armogida, Carlo Rengo

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Abstract

Objective

This study aimed to assess the efficacy of a metal artifact reduction (MAR) algorithm for cone-beam computed tomography (CBCT) scans of teeth with ceramic brackets with/without coated archwires.

Material and Methods

In this in vitro study, 10 ceramic brackets were bonded to maxillary anterior teeth from the second premolar of one side to the second premolar of the other side on a dry human skull. CBCT scans (85 kVp, 8 mA, 14.5 s) were taken twice in the presence and absence of coated nickel–titanium (NiTi) archwires. The skull was placed in a water container for soft tissue simulation during scanning. The images were reconstructed with and without the MAR algorithm, and imported to ImageJ software in DICOM format to calculate the contrast-to-noise ratio (CNR) at 15-, 20-, and 25-mm distances from the tooth center. Data were analyzed by independent t-test, ANOVA, and Bonferroni test (α = 0.05).

Results

Application of the MAR algorithm had no significant effect on the CNR in the presence or absence of archwire (p > 0.05). Significant differences were found in the CNR according to tooth type and distance from the tooth center, such that the CNR significantly increased in farther distances (p < 0.05).

Conclusions

Within the limitations of this in vitro study, the results showed that the application of the MAR algorithm had no significant efficacy in improving the quality of CBCT scans of teeth with ceramic brackets with/without coated archwire.

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来源期刊

Clinical and Experimental Dental Research DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.30

自引率

5.60%

发文量

165

审稿时长

26 weeks

期刊介绍： Clinical and Experimental Dental Research aims to provide open access peer-reviewed publications of high scientific quality representing original clinical, diagnostic or experimental work within all disciplines and fields of oral medicine and dentistry. The scope of Clinical and Experimental Dental Research comprises original research material on the anatomy, physiology and pathology of oro-facial, oro-pharyngeal and maxillofacial tissues, and functions and dysfunctions within the stomatognathic system, and the epidemiology, aetiology, prevention, diagnosis, prognosis and therapy of diseases and conditions that have an effect on the homeostasis of the mouth, jaws, and closely associated structures, as well as the healing and regeneration and the clinical aspects of replacement of hard and soft tissues with biomaterials, and the rehabilitation of stomatognathic functions. Studies that bring new knowledge on how to advance health on the individual or public health levels, including interactions between oral and general health and ill-health are welcome.