Patient: Around November 2007, I chewed on a stone while eating and bit off a piece of my tooth, which I found in the mirror a few days afterwards when I brushed my teeth and felt soreness. So I haven’t bitten on that side since then. In January and February 2008, I consulted with two general dentists to get a brief understanding of my condition. On April 7, 2008, I went to Peking University Dental Hospital, where the doctor said that the nerve was leaking and that root canal treatment and a crown or something should be done, costing a total of about 1,800-2,000 yuan, and asked me if I wanted to follow her continuous treatment. She said that this had to be done after two weeks or it would have a negative effect on the person. It’s almost two weeks, what should I do? I want to ask if there is a cheaper and proper treatment method, what should I do with this titanium white material that kills the nerve, must I go to her to take the next step in treatment, please help me, think of a way, what should I do? Yang Yang, Department of Stomatology, Beijing 301 Hospital: 1, the cheaper treatment can do dry pulp surgery, after that if the defect is not very large directly fill. (Because the film you provide is not very clear, so I can not determine the size of your defect, of course, combined with the actual clinical examination to determine whether the direct filling.) 2, the general nerve killing are arsenic agents, sealing medicine for two weeks is generally paraformaldehyde, rather than titanium substances you said. 3, you can choose to continue to her where treatment, you can also take the case to other hospitals to continue treatment. 4, she provides you with a more thorough treatment plan, if the economic conditions allow it is best to follow this treatment and restoration program. 5, the cost of root canal treatment plus ordinary metal porcelain full crown in our hospital is about 1400 yuan, you are also welcome to visit our hospital.