Removable prostheses are fixed to the bone base of the mucous membrane and to the permanent teeth and they can be removed easily also by the patient. This type of prostheses can be partial or full depending on the number of teeth. In case of a toothless mouth we use full prosthesis. The anatomic situation of the upper jaw and suction-effect of the palate help to fix the prosthesis. It is hard to create a lower denture and stabilize it due to the unfavourable anatomic situation. The substance of mobile prostheses can be hard-acrylate or flexible plastic.
We can differentiate permanent and temporary dentures. A temporary denture is worn until the permanent will be made and it has many advantages: it accelerates the wound healing process, abridges the adjustment period and is aesthetically pleasing. In case of partial prostheses teeth can be found in the mouth, which dramatically increases the stability of prosthesis.
The substance of prostheses is the combination of metal and plastic and is commonly named in prostheses made of sheet metal. The partial prostheses have many advantages; they are thin and the size of the bedplate can be changed. Due to these advantages the adaptation period will significantly shorten and less disturbs the sense of taste. A prosthesis can attach to the teeth with clips or precision mechanical fixing tools. The second method enables a high exactitude to be reached and is aesthetic. The combination of fixed and mobile prosthesis is called combined prosthesis.