When it comes to dental care, an aligner is a common term that refers to an orthodontic appliance used to straighten teeth. However, there are various other terms one can use to describe the same tool. Some synonyms for aligner include braces, clear aligners, invisible braces, clear braces, and orthodontic aligners. While traditional braces are metallic, clear aligners are plastic and therefore less visible. Aligners are designed to fit over the teeth and gradually shift them into their proper position. Whether you prefer the discreetness of an invisible brace or the effectiveness of traditional braces, aligners are an excellent tool for achieving a straight, healthy smile.