I have not only read this book, but have also been a patient of Dr. Kulacz. Unfortunately, many detractors choose wishful thinking over verifiable, scientific fact. They pay for their ongoing denial with health troubles. Nobody wants to lose any teeth, but if the alternative is long term devastating health problems, the loss of a tooth is a small price to pay. I was in this category with both root canals and the related dental infections and they badly affected my health. Once removed I felt noticeably better. To further prove the case, the extracted tooth was sent to a lab for testing and the results confirmed serious infection. Study the subject and look at the evidnce and you will agree with me. Read all the related books as the evidence is overwhelming. Find one of the very few dentists around the country experienced in this protocol. PS, Most dentists know virtually nothing about any of this. It is therefore your health and your responsibility.