Well, sometimes, we travel in a safe car (eg. benz) and still accident can occur or safety features might go kaput, so are we going to stop calling the automobile engineering as a science? Similarly, few medicines or surgeries cure a disease permanently, if the concern doc can't undo the cure and bring back the disease,now, what to call the medical science, a science or not science? Before surgery, docs take a written informed consent which explains all desired & undesired ill effects, alternative methods of treatment, and a permission to do the surgery. Patient is always free to deny the surgery and can get all his doubts cleared before signing it. But in India, there is a fashion of saying that I signed the paper but didn't read it.! As far as Medicines are concerned, Indian law recognises something known as 'implied consent ' which doesn't require paperwork which means that when you go to doctor you give a consent for administration of medicine and it is taken for granted that patient is ready for undesired effects also. But some undesired effects are serious and docs if QUALIFIED in THAT PATHY always(with exception of few) bother to take written consent. If the patient feels that doc is not spending enough time to explain the side effects, WRT MONEY HE IS CHARGING patient is free to change the doc. And at large, patient needs to remember that most of the allopathy docs (not all) charge fees ranging from 50 to 200 Rs. a similar cost incurred for hair cut now a days. I know a 40 years experienced physician in Pune, sees only 5 patients a day, he spends one hour per patient to explain side effects of treatment verbally and written. He charges Rs 5000 per patient. And please remember whatever info on side effects of root canal treatment is on Google is provided by doctors only. Tomorrow, if something mentioned on Google doesn't turn out be true in case of a person,would be apt to stop calling the information technology as a science? And Google doesn't know the body(physiology, Anatomy, biochemistry & pathology) of the reader. And reader also doesn't know any thing scientific about his own body, so applying Google info blindly to your own body is not apt. Better to leave that job to the qualified docs. And Google despite not being a doc keeps charging you in the form data bills /second for providing GENERAL info on medical science, so better to spend money on a doc /per second spent. Docs are better readers of the medical info on the Google than a non medico. Believe me, provide the Google links of root canal treatment to a BDS doc and he will explain it to you what is applicable to your body and what is not in a better way than what a non medico can understand on his own. And before posting a patient for root canal treatment, written consent is taken about good, dangerous & even fatal effects of treatment (provided doc is qualified).