[Methods for the assessment of skull asymmetry on radiograms]

Skull asymmetry is one of the most important points of interest in the analysis of radiograms and computed tomography scans done for the purpose of medical practice and scientific research. This work reviews methods used to determine the presence and degree of skull asymmetry. Assessment of skull asymmetry should involve at least two radiographic projections. The midline should be pass through vertex (v), crista galli, nasion (n), and prosthion (pr) points in the P-A projection and through opisthocranion (op), opisthion (o), basion (b), sphenobasion (sphb), and orale (o) in the base projection. Analysis of asymmetry of a point should be based on two different points of reference.