Clinical Research Directory

Inclusion criteria: * Standardized study models for patients with a full set of permanent teeth (the third molars are not considered). * All study models for patients with Angle class I malocclusion. * All study models for patients with mild to moderate anterior teeth crowding in both arches * Corresponding standardized direct scanned intraoral digital models for all selected study models * Corresponding standardized digital photos for all selected study models * Corresponding standardized digital intra-oral photos for all selected study models Exclusion criteria: * Damaged or distorted study models * Unclear or distorted digital models (STL file) * Unclear or distorted digital photos of study models (JPG File) * Unclear or distorted intra-oral photos (JPG File)