A fixed replacement of teeth could either be by means of a bridge or an implant .The success and longevity of both would depend on the number of teeth missing and the amount  and quality of bone available for which you would have to consult a dentist. Only then can you be given a treatment plan that is suitable to your condition. Cost would vary depending upon type of implant used, number of implants required and also differ depending on which material you use for a bridge in case you opt for one.

Pyorrhea is a disease of gums which leads to loss of support to teeth. Implants are a good way to restore missing teeth but it solely depends on the condition of the bone remaining. There are various types of implant systems available which varies in terms of make and cost. Consult your dentist for further details

Implant is a gud option when u r looking for a fixed restoration like a bridge...or a crown..Having said tis..the success of implant depends on the condition of the bone..There r many economical implants available. .You can chk them with ur dentist