PIP daily living

Recently a DWP decision maker contacted me and asked me about my daily living and how my PTSD and dental issues are affecting me, after I have appealed to the FTT. She said she might be able to change the decision and will discuss things with my representative from Centre 70. The DWP then sent a written report and they said the pain I am feeling when brushing my teeth is out of the context in the Washing and bathing activity. Not brushing your teeth in washing and bathing will give you poor oral health. So why the DWP does not take into consideration about this in this activity. Also, I wear prosthetic dentures which is an aid. So without it I can't eat or talk properly.