One of the most affordable tooth replacement options is the use of a removable prosthesis (denture). Dentures can be complete (replace all the teeth) or partial (replace some of the teeth). These can be constructed either from metal or plastic each having their own advantages and disadvantages.
Metal dentures are often the preferred treatment option due to its increased strength and improved comfort and fit. Plastic dentures on the other hand allow for the addition of teeth and are more cost effective.