Abstract
Limitations of using clear aligners include noncompliance and compromised/fair oral hygiene. Rotational tooth movement also could be a challenge. Small thin teeth are also hard to move. The following chapter will discuss these limitations and possible strategies to manage these limitations.
Keywords: Case selection, Challenging tooth movement, Clear aligners, Compliance, Decalcification, Limitations, Outcomes, Relapse, Retention, Prognosis.