Moreover, cortical bone needs to be radiographically examined prior to orthodontic treatment to assess the possible presence of impacted teeth. The inadequate thickness of cortical bone at the site significantly increases the risk of premature loosening of mini-implants. Ĭonventional Two-Dimensional (2D) radiographs cannot accurately determine the thickness and volume of cortical bone for placement of mini-implants. Determining a proper location for insertion of mini-implants also depends on the presence of adequate thickness of cortical bone in the area because, in case of the insufficient thickness of cortical bone at the site, fenestration may occur during orthodontic treatment and following load application. In orthodontics, use of mini-implants to provide orthodontic anchorage is a relatively new treatment modality. Thus, it is imperative to find regions of jawbone with an adequate thickness of cortical bone for implant placement. Primary stability of implants, which is critical for adequate osseointegration, depends on the thickness of cortical bone adjacent to the implant.
Ĭortical bone is an important anatomical structure and its thickness needs to be determined prior to many dental procedures to ensure treatment success. Three-dimensional image reconstruction not only provides visual information but also enables accurate measurement of anatomical structures thus, it is necessarily required for maxillofacial examination and in case of skeletal problems in this region. It is extensively used for 3D image reconstruction of the maxillofacial region and plays an important role in dental diagnosis and treatment planning. Ĭone Beam Computed Tomography (CBCT) was introduced as a standard alternative to CT for diagnostic and therapeutic purposes. Advanced imaging techniques such as Computed Tomography (CT) revolutionized medicine and dentistry however, the application of CT is limited in dentistry due to high cost, large size of equipment and high patient radiation dose. Advances in science facilitate the use of modern technologies. Imaging modalities are necessarily used in dentistry for treatment planning and dental procedures.
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