Current Evidence on the Image Quality and Diagnostic Effectiveness of Metal Artefact Reduction Algorithms in Dental CBCT: An Overview | Chapter 5 | Medical Science: Updates and Prospects Vol. 2

 

Dental cone-beam computed tomography (CBCT) has significantly enhanced diagnostic capabilities in maxillofacial imaging, offering high-resolution, three-dimensional views with relatively low radiation exposure. Compared with computed tomography, CBCT generally delivers a lower radiation dose when producing images for equivalent diagnostic objectives. However, the presence of metallic objects such as implants, restorations, and orthodontic appliances often introduces image-degrading artefacts that compromise diagnostic accuracy. Various metal artefact reduction (MAR) algorithms have been developed to counteract these limitations. In recent years, various post-processing methods have been developed to minimize the impact of metal artefacts in CBCT. Despite these advances, the clinical effectiveness of MAR in dental CBCT remains unclear. Most existing studies are in vitro, relying on phantoms or extracted specimens under controlled conditions that do not fully replicate the complexity of in vivo imaging. There is a critical need for well-designed clinical studies which can determine when and how MAR algorithms truly enhance diagnostic outcomes in different dental applications. This review synthesizes current evidence on the diagnostic effectiveness of MAR algorithms in dental CBCT, emphasizing their methodological principles, clinical outcomes, and limitations across different imaging contexts.

 

 

Author(s) Details

Seershika Reddy Y
Department of Oral Medicine and Radiology, Madha Dental College and Hospital, Kundrathur, Chennai-69, Tamil Nadu, India.

 

Kavitha M
Department of Oral Medicine and Radiology, Madha Dental College and Hospital, Kundrathur, Chennai-69, Tamil Nadu, India.

 

Niveditha B
Department of Oral Medicine and Radiology, Madha Dental College and Hospital, Kundrathur, Chennai-69, Tamil Nadu, India.

 

Devi S
Department of Oral Medicine and Radiology, Madha Dental College and Hospital, Kundrathur, Chennai-69, Tamil Nadu, India.

 

Gurucharan R
Department of Oral Medicine and Radiology, Madha Dental College and Hospital, Kundrathur, Chennai-69, Tamil Nadu, India.

 

Vigneshwaran J
Department of Oral Medicine and Radiology, Madha Dental College and Hospital, Kundrathur, Chennai-69, Tamil Nadu, India.

 

Please see the book here :- https://doi.org/10.9734/bpi/msup/v2/6628