Dental Bridges are devices used to fill the space where teeth have fallen out or have been removed. A typical bridge consists of a pontic (the tooth that replaces the gap) and this is attatched either side to two surrounding crowns called abutments.
Dentures are a removable method of replacing a gap. If a space is left in the mouth without replacing it with a denture/implant or bridge, the teeth either side of the space will tilt and shift leading to further movement of teeth above the gap and further along the jaw.
A dental implant is a titanium screw fitted into the gum, which can later be used to support a crown or a bridge or denture within the dental arch. For people who have lost all their teeth, dental implants can be a life changing experience.