In some cases, oral surgery is performed to correct bony ridges that may interfere with the stability of the denture. In other cases, the remaining teeth may need to be extracted before placement. Once your dentist has decided that dentures are right for you, he will make an impression of the gums to identify every ridge and crevice to ensure the best fit possible.
Dental Bridges: A dental bridge refers to a single false tooth or span of up to three prosthetic teeth that are attached to adjacent natural teeth with metal and plastic connectors or dental crowns. Bridges help to preserve some of the mouth's structural integrity by leaving as many natural teeth in place as possible. However, patients that are missing the majority of their teeth are typically not good candidates for dental bridges. Good candidates for dental bridges must have healthy gums and some healthy natural teeth that can act as anchors.
[...] a composition for the purpose of making of artificial teeth either single double or in rows or in complete sets, and also springs for fastening or affixing the same in a more easy and effectual manner than any hitherto discovered which said teeth may be made of any shade or colour, which they will retain for any length of time and will consequently more perfectly resemble the natural teeth.[8]
A complete denture can be either “conventional” or “immediate.” A conventional type is made after the teeth have been removed and the gum tissue has healed (usually takes 4 to 6 weeks). During this time, the patient will go without teeth. Immediate dentures are made in advance and immediately placed after the teeth are removed, thus preventing the patient from having to be without teeth during the healing process. Once the tissues shrink and heal, adjustments will have to be made.
An overdenture is a removable dental prosthesis that covers and rests on one or more remaining tooth roots. A removable partial denture is a dental prosthesis that replaces some teeth and is built around existing natural teeth. Both the overdenture and the removable partial denture may be connected to the remaining tooth roots or remaining natural teeth with anchors made of metal or plastic. These connections improve stability and the retention of both prostheses.