Title
Authors
Affiliation
1Department of Oral and Maxillofacial Surgery, Mahsa University, Kuala Lumpur, Malyasia; 2Department of Oral Medicine and Radiology, Maharishi Markandeshwar College of Dental Sciences and Research, Mullana Ambala, Haryana, India; 3Department of Oral Medicine and Radiology, Hitkarini Dental College & Hospital, Madhya Pradesh, India; 4Department of Oral Pathology, ESIC Dental College & Hospital, Kalaburagi, Karnataka, India; 5Department of Oral & Maxillofacial Surgery, SB Patil Institute for Dental Sciences & Research, Naubad, Bidar, Karnataka, India; 6Department of Oral Medicine and Radiology, Maharashtra Public Health Services, Mumbai, Maharashtra, India; *Corresponding author
G Padmanabha Kumar - E-mail: padmanabha@mahsa.edu.my
Rakashree Chakraborty - E-mail: drrakashreesen@gmail.com
Ankit Saha - E-mail: ankit.omdr@gmail.com
Nilesh Dinesh Pardhe - E-mail: drpardhenilesh@gmail.com
Prasad Vagadale - E-mail: docprasad2213@gmail.com
Sabahat Hafiz Khan - E-mail: dr.sabaansari22@gmail.com
Article Type
Research Article
Date
Received February 1, 2026; Revised February 28, 2026; Accepted February 28, 2026, Published February 28, 2026
Abstract
Metal artifacts from temporomandibular joint prosthetic components significantly compromise cone-beam computed tomography (CBCT) image quality and limit postoperative assessment. Therefore, it is of interest to evaluate the effectiveness of metal artifact reduction (MAR) algorithms in improving CBCT image quality using standardized anthropomorphic skull phantoms with five commercially available TMJ prosthetic systems. CBCT scans were acquired with three imaging systems with and without MAR activation, followed by quantitative analysis of artifact index, signal-to-noise ratio and contrast-to-noise ratio, along with qualitative assessment by four calibrated oral radiologists. MAR algorithms significantly reduced artifact indices by 34.7–58.2% and improved diagnostic acceptability scores (3.6 ± 0.8 vs 2.1 ± 0.7; p < 0.001), with titanium components generating fewer artifacts than cobalt-chromium-molybdenum alloys. Despite substantial improvement, residual artifacts persisted near cobalt-chromium-molybdenum components, indicating the need for further optimization of MAR algorithms and CBCT acquisition protocols.
Keywords
Metal artifact reduction (MAR), cone-beam computed tomography (CBCT), temporomandibular joint prosthesis, image quality, artifact index
Citation
Kumar et al. Bioinformation 22(2): 709-716 (2026)
Edited by
Hiroj Bagde
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
