Sammanfattning
Cone-beam computed tomography (CBCT) is an advanced 3D
imaging method. Depending on the size of field-of-view and spatial resolution, CBCT delivers higher
radiation doses than conventional 2D imaging methods. Consequently, the Danish Health
and Medicine Authorities have strengthened the rules for dentists, who want to work with CBCT in
their practice. The dentists
need to fulfil a postgraduate course where one part out of three
is a theoretical training in technical aspects, diagnostics and indications for the use of CBCT. There
is still sparse evidence on
when a CBCT examination is indicated, but it is expected that
patients may benefit from a CBCT examination when the following situation has been diagnosed in a
2D image: ectopic maxillary canines and other impacted teeth; odontogenic tumours
such as odontomas; cases of impacted mandibular third molars
where CBCT images may change the treatment plan, internal- and external pathological resorptions,
and further in cases with
disturbances in the eruption pattern of the permanent dentition.
Moreover, CBCT may be used prior to orthodontic treatment in
complicated cases with skeletal deviations and during treatment
of patients who have suffered from trauma to the dentition. To
avoid retakes and additional radiation, children need a careful instruction prior to a CBCT
examination to achieve optimal images
without motion artefacts. The aim of this review is to suggest
indications and guidelines for a CBCT examination of children
as described by Department of Dentistry, Oral Radiology, Aarhus
University and to provide examples of clinical situations, where
CBCT was indicated.