There are various options to replace the missing teeth. He can opt for dentures which are removable, bridges which are fixed and also opt for implants which would be attached to the bone. But the present situation needs to anaylsed at first as to which teeth are suitable for taking support and his bone condition.

Treatment options are many...It has to be decided after eveluating the patient general health as well as oral health....Removable dentures is the most economical but before going for any treatment ask the dentist about long term benefits....Bridges and implants can be decided after oral evaluation of the patient.. And yes cheap and best doesnt go hand in hand..

Cheap and best never go hand-in-hand. Cheapest way to replace 1 or many missing teeth is removable partial denture. Though it has long term side effects too. If the adjacent teeth are in sound health then you can have fixed teeth placed with their help (fixed partial denture).... This procedure commonly called as bridging. And if the patient has no systemic problem like diabetes , hypertension or any blood disorder​ and has no habits like smoking, gutkha or alcohol or any other..... Then dental implants are best option.... Though not cheap.