Q. My right side lower molar tooth had a big filling. My NHS dentist decide to put a crown over it in Jan this year. My tooth was fine then. This led to the root canal treatment which took place in March. I had a lots pain and decided to see an endodontics and had it done second time at 2nd of April. Since then I still have the pain on the tooth and ear pain,face pain and upper teeth sore on the same side. I have been back to see him twice and he insist that the tooth is ok but is the muscle or the incorrect way of biting causing the problem. I’d like to seek your advice (The crown has not being put in yet)