Cone-beam computed tomography as a surgical guide to impacted anterior teeth

Abstract

Surgical procedure for removal of impacted teeth is a challenge for clinicians as it involves accuracy in the diagnosis and localization of the dental elements. The cone-beam computed tomography (CBCT), compared to the conventional radiography, has a greater potential to provide complementary information because of its three-dimensional (3D) images, reducing the possibility of failures in surgical procedures. Two 10-year-old boys presented with aesthetic issues associated with the juxtaposition of ectopic teeth with the permanent ones. Both two-dimensional and 3D preoperative radiographic diagnostic sets were produced. The occlusal and panoramic radiographs were not enough for proper localization of impacted incisors. Thus, the CBCT was used as a surgical guide. After 2 years of longitudinal following, no lesion was recorded, and the orthodontic treatment has proven successful. In all cases, CBCT contributed to both diagnosis and correct localization of supernumerary teeth, aiding the professional in the treatment planning, and consequently in the clinical success. The surgeries were completely safe, avoiding damage in noble structures, and providing a better recovering of the patients.

Prevalence, characteristic features, and complications associated with the occurrence of unerupted permanent incisors

“…Radiographs may be justified when there are abnormal incisor relationships, localization of tooth position is necessary to formulate a treatment plan, and where a reasonable expectation that pathology exists on clinical grounds [ 12 ]. Cone Beam Computed Tomography (CBCT) could be used to provide valuable information in qualitative analysis of dento-osseous structures, morphological alterations and exact tri-dimensional positioning of the unerupted teeth and adjacent structures [ 13 ]. As a general principle, the recommendations from clinical guidelines of the Royal College of Surgeons of England [ 1 ] and the American Academy of Pediatric Dentistry [ 14 ] should be adopted during radiographic assessment of unerupted permanent incisors.…”

Investigation of Impacted Supernumerary Teeth: A Cone Beam Computed Tomograph (Cbct) Study

“…The main advantages of CBCT are; multi-planar imaging of dental tissues, shorter acquisition time and less ionizing radiation dose compared to CT, and ease of data transfer. It is sometimes not possible to diagnose and make treatment planning by using routine radiographs ( 10 , 11 , 12 , 13 , 14 ).…”

Re-exposure in cone beam CT of the dentomaxillofacial region: a retrospective study

“…The use in oral and maxillofacial surgery implies the accurate analysis of pathologies and the assessment of impacted teeth. [11][12][13] In orthognathic surgery it delivers detailed information about dentofacial deformities in order to enable an accurate surgical planning and to optimize treatment outcomes. [14][15][16] In implant dentistry CBCT scans are experiencing an increasing demand.…”