Please suggest me the preventive and cost effective solutions? (Photo)

I have begun developing gaps between teeh. The right lower molar gaps betwwen two teeth is causing food stuck and at times severe pain. The lower left side too have begun similar pattern. Is there any filling for the gums like artificial rubber structures that can be used to keep the gaps filled while eating. Or is there any solution without dislocating the existing structures? I am scared of RCT or implants that I have already suffered one failure on the left upper molar.

No doctor answers yet