Diagnóstico de reabsorção radicular externa por meio de tomografia computadorizada de feixe cônico: uma revisão da literatura

Abstract

The diagnosis of external root resorption lesions (ERR) can be extremely difficult due to the fact that they appear asymptomatic and difficult to visualize on a radiographic image examination. Early detection of injury is essential to ensure the certification of the reabsorption process, consequently, intervention and a correct planning for the treatment of the affected tooth. The complementary exam of choice for follow-up in cases of ERR is the periapical radiography. As two-dimensional images, many times, they show overlapping of anatomic structures, which is a limiting factor for the diagnosis of ERR. The use of cone beam computed tomography (CBCT) can be very useful in the diagnosis of root resorption, since the location, shape and exact size of the lesion are better viewed in relation to two-dimensional radiographs. TCFC images have benefits for dentists, facilitating the diagnosis of ERR. Therefore, the objective of this work is to review studies that assess the effectiveness of the TCFC examination as an auxiliary diagnostic tool for ERR. It was consulted the databases Pubmed, Lilacs and BBO. As sources of consultation form articles of national and international newspapers, mainly those available on the Portal Capes. According to the literature TCFC is better than periapical radiographs as an auxiliary diagnostic method of RR, it is indicated when there is a need for improved visualization of root surfaces.