If you are missing all or most of your teeth, or you have many teeth that cannot be saved, there is another alternative to dentures to replace all of your teeth on the upper and/or lower jaw that is fixed in place. All-On-4, or fixed hybrid, treatment is an implant supported fixed prosthesis that replaces all the teeth of the upper or lower jaw. Fixed hybrids are screwed down onto implants and can only be removed by a dentist with experience in this type of prosthesis. They do not place any pressure on the gums and are completely supported by the implants. One major advantage of the All-On-4 is that implants can be placed, and a temporary fixed prosthesis can be fabricated the same day the natural teeth come out. So, you can walk in with teeth, and walk out with prosthetic teeth that are fixed in place and supported by the implants. After a healing period of 3-6 months, a new impression is made and a final prosthetic is made from denture teeth and pink acrylic, or ceramic teeth and pink porcelain.