On common way of replacing missing teeth is through the use of a fixed bridge. Here is an explication, as well as the pluses and negatives.
A bridge, by definition, joins one fixed point, over a gap, to another fixed point. In the matter of teeth, if you are missing one or more teeth the dentist can make a prosthetic of crowns to fill in the missing gap. To fill in the gap, the crown is called a pontic. The anchoring teeth also must be included in the prosthetic by crowns over them. So to replace one missing tooth, it would take a bridge of 3 units, or crowns. It is possible to replace two missing teeth that are next to each other with a 4 unit bridge, or if there is a toot, gap, tooth, gap, and a tooth, those two teeth could be replaced with a 5 unit bridge, if the anchor teeth are healthy, and not suffering bone loss. Only your dentist can give you the options, as a result of examination and x-rays.
The materials that can be used for dental bridges is limited to PFM or zirconia. Usually all porcelain is too fragile to use to make a bridge. If a patient has limitations with funds, a lesser expensive option is a removable bridge, also called a partial denture.
The cost of a 3-unit bridge made with PFM would be 325 per unit or $975. With Zirconia, the cost would be 495 x 3 = $1485. If the abutment teeth are healthy and don’t need crowns, it may be recommended that the tooth be replaced with an individual dental implant.