Dentures provide a cost effective way to replace missing teeth, from a single tooth to a full set. Dentures can be all plastic or plastic with a metal subframe (shown in the image). They can be removed (for cleaning) and reinserted. This is relatively cheap, but has the disadvantage to many people that it is not permanently fixed in the mouth. Aesthetically, such a denture can be very successful if carefully made, but it will likely have movements when eating or speaking and can affect speech and taste.