One of the overriding themes of the Science Based Medicine blog is to use rigorous science when evaluating any health claim – be it medical, dental, dietary, fitness, or any other assertion put forth with the intention of improving one’s health. Once the scientific evidence is evaluated as to efficacy, there are other criteria which must be taken into consideration, such as ease of administration, costs, possible adverse effects, and so on. Benefits have to be carefully weighed against risks to properly determine any appropriate course of action. For example, if a new pill is developed which is significantly better at , say, managing hypertension than existing medications, but it kills 10% of patients taking it, it obviously would not be the drug of choice. Conversely, if a proposed treatment, say homeopathy, is touted as being 100% safe with no side effects, but has absolutely zero benefits, it too would not be a recommended treatment. It’s a complicated and often ambiguous algorithm, and is imperfect due to the impossibility of attempting to quantify non-quantifiable values and qualities. (more…)
We dentists are an evil group of sociopaths. When we’re not trying to kill you or give you chronic diseases such as multiple sclerosis with our toxic mercury saturated fillings, we are advocating for the placement of rat poison/industrial waste (i.e. fluoride) in your water supply by our governmental overlords. What is up with us?
The problem is, we’re failing miserably. Even after more than 150 years of placing silver amalgam restorations in our patients, thereby saving untold numbers of teeth, reducing pain and suffering, and improving chewing ability for millions upon millions of people, there is still no evidence worth a damn that shows any correlation or causative effects for any known disease or condition. And with fluoride, after adjusting fluoride levels in municipal water supplies throughout the U.S. and in many places world wide for over sixty years, after adding fluoride to toothpastes and mouthwashes, and giving fluoride treatments to patients in our offices, the only nefarious result we have obtained is the significant reduction of dental decay with its concomitant savings of billions of health care dollars and untold pain and suffering for our patients. Man, we can’t do anything right.
Now, with the help of the American Academy of Pediatrics (AAP), there’s a new strategy.
[Editor’s Note: I’m pleased to announce that Grant Ritchey has agreed to join SBM as a regular. He’ll be writing about dental science and pseudoscience every four weeks on Sunday. (I swear, we’ll get up to seven day a week publishing if it kills me—or the other bloggers.) Grant will be starting with science, but I’m sure he’ll soon be discussing all the sorts of claims about dentistry and dental disease that are—how shall I put it?—less than science-based soon enough.]
Obstructive sleep apnea (OSA) is a sleep-related breathing disorder in which the airway is partially or completely blocked during sleep. Although little or no air is flowing, the person continues to attempt to breathe. Typically, cessations in breathing last longer than 10 seconds per episode, but can last over a minute and usually occur multiple times during sleep. This can lead to poor sleep quality and precipitous drops in blood oxygenation levels over an extended period of time. This potentially life-threatening condition is frighteningly prevalent, especially in adults over 40, and it is estimated that 80-90% of OSA goes undiagnosed, further compounding the problem.
When a person experiences multiple apneic episodes during the night, the brain responds by alerting the body, resulting in increased efforts to breathe, gasping, and arousal from sleep. These frequent waking events, combined with lowered oxygen levels, can lead to the signs, symptoms, and sequelae of obstructive sleep apnea. Typically, OSA sufferers snore loudly, then are silent for 10-30 seconds as the airway is blocked. This is followed by choking, snorting, or gasping sounds when their airway reopens.
Editor’s note: Having just submitted a major grant on Friday and then having had to turn around and head to an NIH study section meeting today in Bethesda, I just didn’t have the time to produce something up to the usual standards of SBM for today. (And, being managing editor, I should know what’s up to the usual standards of SBM; what I started to write wasn’t it. Trust me on this.) Fortunately, Dr. Grant Ritchey and Dr. Steve Hendry, two skeptical, science-based dentists, did submit something up to SBM’s usual standards. Even better, since we’ve been having a number of requests for posts involving dentistry, it seemed like a perfect time to publish their first contribution to SBM and see how our readers like it. Maybe next time around, I’ll have them update the “state of knowledge” regarding amalgams.
Form follows function, as the old saying goes. Nowhere in the human body is this adage more fitting than in the oral cavity. In less than two generations, the practice of dentistry has evolved from basic pain relief and function-based procedures (such as extractions and fillings), into today’s practices of complex cosmetic rehabilitation, orthopedic and orthodontic management of the teeth, jaws, and facial structures, replacing missing teeth with dental implants, and treatment of sleep apnea and temporomandibular joint (TMJ) disorders, to name but a few. With such rapid progress, it is to be expected that for every science based advance made in our field, there are just as many claims that are either dubious in their evidential support or outright pseudo-scientific or anti-scientific nonsense.
In this article, we’ll be taking a look at the roles that health care practitioners such as chiropractors, osteopathic physicians, and physical therapists, are attempting to play in the dental field. We will also see how well-meaning dentists have been trained in and apply their pseudo-scientific principles in their dental practices. In particular, we’ll be examining Cranial Osteopathy (also known as Craniosacral Therapy or Cranial Therapy) in the management of the dental patient, the purported benefits claimed by practitioners of cranial osteopathy, and the quality and quantity of evidence for this type of treatment in the scientific literature.