Comparative Evaluation of Periapical Lesions Using Periapical Index Adapted for Panoramic Radiography and Cone Beam Computed Tomography

Abstract

The field of radiology shows continuous development in order to improve the image quality and to reduce the patient radiation dose. At present, conventional radiography is replaced with digital radiography (DR) because of emerging radiographic technologies (1-4).Dental radiographic imaging is a significant tool to achieve an accurate diagnosis. Traditional radiographic methods such as panoramic radiography (PR) provide adequate information; yet, these radiographic techniques provide a two-dimensional (2D) representation of 3-dimensional (3D) structures. Their limited film size, image distortion, magnification, and 2D view restrict their use in this field. To overcome the limitation, medical computed tomography (CT) began to be used for dental applications in the mid-1980s; however, due to the level of radiation exposure during image acquisition, this device received some criticism. Recently, cone beam computed tomography (CBCT) systems have become available for 3D visualization of the craniofacial complex (5).

Prevalencia de lesiones apicales post endodoncia en tomografías computarizadas de haz conico en una subpoblación peruana

“…Se concluyó que CBCT facilitará información más exacta en cuanto a la extensión y dimensión de las lesiones apicales". (11) En el 2016, Sălceanu y col. evaluaron el rendimiento del índice CBCT-PAI en el diagnóstico de las lesiones periapicales crónicas y el seguimiento de la evolución antes y 3 meses después del tratamiento. El estudio estuvo conformado por un grupo de 10 dientes diagnosticados con lesiones periapicales crónicas.…”