How do I get dental treatment for service connected GERD ?

I have service connection for GERD and am trying to get my teeth fix due to the enamel eroded from the acid. It has been so bad that I have had 2 surgeries but the enamel on my teeth is gone. I have provided countless documentation from 3-4 different dentist with nexis statements but VA won't fix the problem. I filed a claim but was denied since VA won't pay compensation since Dental is not service connected. DRO told me I can get treated but not compensated and he referred me to my local VA dentist, which in turn sent me a letter stating that I am not elidable due to not being a 100% or service connected for dental, which they won't give me even though the evidence is there. This has been going on for over 6 years and having countless problems with my teeth. This is affecting me mentally and physically. Don't know what else to do since I can't afford the fix with my dental insurance and don't see why the VA can't fix the problem and charge my insurance since they already charge my insurance for my service connected disabilities which they shouldn't be doing. What should I do?