Replacing a single tooth can be achieved with a conventional bridge or an implant retained crown.
Fixed Bridge
The conventional fixed partial denture (fixed bridge) requires that your dentist
drills down two or more adjacent teeth to create space for the crowns of the prosthetic
teeth. Placing a bridge on natural teeth increases the functional forces that are
placed upon them and makes the use of floss between the teeth more difficult. Conventional
bridges may need to be replaced if the supporting teeth develop cavities or periodontal
disease. In a certain percentage of instances while preparing the adjacent teeth
for crowns (i.e. drilling down a tooth), the preparatory procedure will cause the
nerve of the tooth to die and require root canal treatment to eliminate infection
of the nerve.
Implant Single-Tooth
An implant single-tooth restoration avoids the need to restore the adjacent teeth
and also replaces the support that is lost with the missing tooth. This allows normal
flossing as if the replacement implant were a natural tooth. An implant is placed
in the position of the missing tooth. When the implant is stable and ready for loading,
an abutment can be attached to the implant that will connect the final crown to
the implant. An impression is made to record the contours of the abutment or the
position of the implant top. The crown is then fabricated and fixed in place using
cement or screws. An implant crown is not susceptible to cavities but may develop
complications if oral hygiene is not maintained. The implant restoration should
be routinely evaluated in time intervals that are determined by the conditions of
the remaining natural teeth and the implant.