When a tooth cannot be restored it needs to be extracted to prevent periodontal disease.
Tooth extractions are done in one appointment. The duration of this procedure can range from thirty minutes to an hour depending on the complexity of the extraction. Usually wisdom teeth extractions tend to be more complicated especially when they are still inside the gum.
Once a tooth is extracted it is highly recommended to place some bone to fill the space left by the tooth. This is a good step to prepare the area for a dental implant. Otherwise the bone around that area will begin to reabsorb and this will affect adjacent teeth and can cause periodontal disease.