{Reference Type}: Journal Article
{Title}: Three-dimensional facial hard tissue symmetry in a healthy Caucasian population group: a systematic review.
{Author}: Morgan N;Suryani I;Shujaat S;Jacobs R;
{Journal}: Clin Oral Investig
{Volume}: 25
{Issue}: 11
{Year}: Nov 2021
{Factor}: 3.606
{DOI}: 10.1007/s00784-021-04126-w
{Abstract}: <B>OBJECTIVE: </B>The aim of this study was to quantify the symmetry of the facial hard tissue structures using three-dimensional radiographic imaging modalities in a normal Caucasian population group.<BR><B>METHODS: </B>Electronic literature search was conducted in the following databases: PubMed, Embase, Web of Science, and Cochrane Library up to February 2021. The studies assessing symmetry of facial bones using computed tomography (CT) and cone beam CT were included.<BR><B>RESULTS: </B>The initial search revealed 8811 studies. Full-text analysis was performed on 33 studies. Only 10 studies were found eligible based on the inclusion criteria. The qualitative analysis revealed that a significant variability existed in relation to the methodologies applied for symmetry quantification.<BR><B>CONCLUSIONS: </B>The current review suggested that the overall relative symmetry of the normal Caucasian population group varied depending on the skeletal structure being assessed; however, majority of the observations showed a symmetry within the range of 1 mm without any significant difference between left and right sides.<BR><B>CONCLUSIONS: </B>The quantification of facial hard tissue structure symmetry is vital for the diagnosis and treatment planning of orthodontic and/or maxillofacial surgical procedures. Prospero registration number CRD42020169908.