Hi Dr. I have too much sensitivity in my teeth, I can't even easily drink water at room temperature as I experience a sharp and sudden pain in my teeth and gums. I have had some considerable sensitivity right since childhood, but it got worse since last month I just got 4 cement and a silver filling in my molars. I consulted my dentist about this, and I've used both sensodine and thermoseal toothpastes, but unfortunately in my case they don't seem to work. Please suggest some good techniques or treatments (preferably natural) that actually work as I'm not able to enjoy much of cold or hot food anymore. Thank you in advance.