Dr. Smith drilled out an unnessisary enormous amount of tooth, so much so that I will have to get at least two root canals and many crowns in the future. The work he does is to ensure work needing to be done in the future. He filled 11 teeth with mercury amalgam fillings that didn't need to be filled at all. He didn't explain any of the options, nor did he follow ADA procedure for removal of my old amalgam fillings. Estamates to repair the damage he did are approximatly $10,000. I have had a head ache for a year now, because of the mercury leaching from my poorly made fillings.