Hi,u hv not mentioned which tooth u lost,if it's one of the wisdom teeth u can just ignore it as there is no need to replace them,if it's any other teeth then it has to be replaced.ther are many options like a bridge ( n which the nearby teeth are reduced in size and support is taken from them to replace the missing ones)then implants(a biocompatible screw is placed inside ur bone and a cap is placed over it)
Next Steps
it's always better to go for a implant provided u hve good bone support.
Health Tips
kindly meet ur doctr so that he can analyse ur case and x-ray .so that he can suggest the correct treatment after that