I am getting pain in my upper back teeth when I eat non veg. When consulted with local doctor he said it is because food is getting stuck in between the teeth and infecting my gums which is weakening it and I am experiencing the pain. He said I need to get the area in upper 7|7 teeth cleaned by them and deep scaling needs to be done for it which he said will cost 600+600. He also advised me to brush using interdental brushes. Should I proceed with what he suggested or just brushing with interdental brush will do? Also I wanted an opinion on the cost for this procedure.