Using Dental implants as anchors we can replace all the teeth in either the upper or lower arch. All on 6 bridges are most like having your own teeth, when compared to dentures. Usually, 4-8 implants are placed per jaw for strength. The denture is made of porcelain and a strong substructure. The porcelain covered structure is screwed into the implants and does not need to be removed before sleep. The dentures are always in place and only need to be professionally removed and cleaned periodically.