The way partials work is whatever teeth remain in an arch are unaltered. The partial is a metal or resin/acrylic framework with plastic teeth. The framework is designed to fit around and hug the remaining teeth to gain stability and retention. The plastic teeth are then bonded to this framework. Because partials require this framework, patients see them as a last resort or an option that is dictated by low fee only because the frameworks are not only cumbersome but they must run the entire length of the arch no matter how many teeth are being replaced for support. The most common objections to partials are that they are unsightly due to the metal arms required to secure onto the remaining teeth, food getting trapped around and under them and overall lack of comfort.