Q. I had a root canal done on my front tooth (due to a previous trauma) about 2 years ago. The dentist applied composite material which she said at the time was temporary. Although since going back she advised that it is best to leave it in place. The composite is A1 but is still darker than my other teeth. Apparently this is the whitest available (or certainly on the NHS). Also the composite material makes the tooth stick out more than the others. What is the best advice in terms of onward treatment that my improve the appearance of this tooth?,