Treatment options to correct crowded (crooked) teeth generally include the movement of individual teeth. These options usually include braces or clear aligners. Braces are more or less visible depending on the color (silver, gold or clear). Clear aligners are virtually invisible and are removed while eating or tooth brushing. Surgical orthodontic procedures (orthognathic surgery) are primarily performed to correct jaw position problems such as "under bites" and other discrepancies, but not performed to correct individual tooth irregularities.