When a tooth is lost, a bridge typically the second best choice to replace a tooth. Before implants, bridges were THE best way to replace a tooth or teeth. A bridge is a good choice for tooth replacement if the missing tooth space has a tooth or teeth on both sides of the space so that the bridge can be supported on both sides. A bridge replacing one tooth is like three crowns fused together, with the middle tooth (pontic) supported by abutment crowns on each side. The bridge is cemented on the supporting teeth permanently, looks should look natural. The middle tooth is best kept clean using a floss threader. Before deciding on a bridge as a viable option, the dentist evaluates the strength of the abutments and how healthy the gums and bone is around the supporting teeth.