Evaluation of the effect of reducing metal artifacts in multi-detector CT imaging of zirconia and titanium implants.

Objectives: Zirconia oral implants produce larger artifacts on computed tomography (CT) compared to titanium oral implants. This study aimed to compare the effectiveness of metal artifact reduction (MAR) software and dual-energy (DE) methods, which are used in multi-detector CT (MDCT) to reduce the artifacts produced by titanium and zirconia oral implants.

Methods: Oral implants were placed in the lower right second premolar and second molar regions of an acrylic mandible model and evaluated using MDCT.

Principles of the magnetic resonance imaging movie method for articulatory movement.

Magnetic resonance imaging (MRI) has become a critical tool for dental examination. MRI has many advantages over radiographic examination methods, including the lack of a requirement for patient exposure and the ability to capture high-contrast images of various tissue and organ types. However, MRI also has several limitations, including long examination times and the existence of metallic or motion artifacts.