Christy Bieber has a JD from UCLA School of Law and began her career as a college instructor and textbook author. She has been writing full time for over a decade with a focus on making financial and ...

Permanent or fixed retainers are made of a metal wire that is glued to your teeth. Usually, this wire is smooth and solid or has a braided texture. It’s attached to your teeth and adjusted to your ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Amy is an ACA and the CEO and founder of ...