Because acetal is colored like a natural tooth, it is more esthetic than metal when used for clasps. Having an easily milled material, one can CAD a delicate partial denture frame and mill it in most dry 5-axis mills. According to research, patients are twice as likely to lose the tooth adjacent to a partial denture as any other tooth. However, because acetal is much more flexible than Co-Cr, it is kinder to adjacent teeth. Lastly, using acetal is much less labor intensive compared to fabricating denture frameworks from cast metal (due to cast metal requiring so many steps to create, as well as all of the chemical reactions it causes that can play havoc with accuracy and fit). When moving to milling acetal and its all-digital workflow, these problems are dramatically reduced.