PART I
The Lay of the Land
Though I do not believe that a plant will spring up where no seed has been, I have great faith in a seed. Convince me that you have a seed there, and I am prepared to expect wonders.
HENRY DAVID THOREAU
Here we start with the basics. We answer such questions as âWhy is the mouth important?â âHow do I find my way around the oral cavity?â âHow can I care for my mouth or even recognize changes?â and âWho can help me, dental professionals or herbalists?â We believe that understanding âthe lay of the landâ in this way will support the choice of timely interventions, help to allay any fears, and, practically speaking, take us closer to getting to know the mouth.
1
IT ALL BEGINS IN THE MOUTH
As health care interventions multiply, there remain certain unchanging fundamentals: eating food (naturally), drinking water (often), moving our bodies (freely), and breathing clean air (easily). Good oral hygiene is seen as a pillar of overall health and well-being.
Too much
fast food and not enough
real food leads to fatigue and deficitsâphysical, mental, emotional, and spiritual. The repercussions may begin in the mouth with signs of decay, but it would be shortsighted to think that they end in the mouth.
Imbibing a rainbow of sugary beverages is likely to dehydrate rather than hydrate the bodyâs tissues. We need pure, natural water to support digestion and elimination and to support well-being.
Rest is imperative, but stasis cannot endure. For centuries we have been urged to move, to dance, to walk, and to run. Activity enhances circulation and benefits the tissues; yes, even in the mouth.
Oxygen is a vital element. Its absence causes oxygen starvation. A healthy mouth needs oxygen.
These age-old pillars hold our teeth firmly in place. When our teeth decay, loosen in the gums, or simply rot and fall out, we are seeing signs of disease and inflammation. When our gums are sensitive, are swollen, or bleed, they are showing signs of inflammation. Often inflammation in the mouth is indicative of inflammation elsewhere in the body.
INFLAMMATION
Acute, circumscribed inflammation can be a normal biological response to potentially harmful stimuli. It can help to safeguard vulnerability, just as, for example, swelling (inflammation) can meaningfully protect an injured site anywhere in the body to promote its healing. Under most circumstances an intact systemic inflammatory response increases the likelihood of a successful outcome following acute injury or infection. The key is to determine the cause of inflammation and eliminate, or at the very least alleviate, the source.
Often we are able to identify acute inflammation by any of its classic symptoms: pain, heat, redness, swelling, and/or loss of function. Itâs easy to imagine any one or all of these characteristics occurring in the body. In the mouth, inflammation can manifest in one or more of these observable symptoms, but it can also be asymptomatic, symptomless. Furthermore, not all inflammation is localized, acute, and short-lived; it can extend over time, for days, months, or even years, and become chronic and systemic. And so the mouth can indeed be a source of chronic, systemic inflammation, with far-reaching consequences for oneâs overall health.
We are learning with each new shred of evidence that when inflammation presents in the mouthâwhich we refer to by names such as cavities, decay, gum disease, periodontal disease or periodontitis, or other diagnosesâthere may be inflammation elsewhere. Or if there isnât already, there will be if we do not attend to the health of the mouth.
As noted by Bruce Bistrian, chief of clinical nutrition at Beth Israel Deaconess Medical Center and professor of medicine at Harvard Medical School,
Therapies to down-regulate the systemic inflammatory response by targeting the source of inflammation may dramatically improve patient outcome in chronic inflammatory states and some acute inflammatory conditions. (Bistrian 2007)
MEASURES OF INFLAMMATION
Letâs look at two of the most common. First, many recognize the presence of a protein in the blood called C-reactive protein, or CRP, as a measure of inflammation. While CRP levels can be affected by genetic differences, inflammation in the mouth is known to give rise to elevated CRP levels in the blood. As blood circulates throughout the body, the sources of oral inflammation are carried throughout.
It is accepted that there is a flow of fluid within each tooth that nourishes dentin and enamel (see a detailed discussion in chapter 2). Blood, mixed with the oxygen it carries, nourishes the teeth, entering each tooth through its root, then dispersing outward through tiny tubules to feed each tooth. This provides a continuous exchange of nutrients between each tooth and the rest of the body. We might even say that in the broadest sense our whole being is connected to every single tooth.
Monitoring CRP levels has limited practical appeal. We cannot go home, sit down at the kitchen table and do it, or open the medicine cabinet and whip out a CRP barometer. We can, however, learn to measure stress.
Stress is inflammation. The body does not differentiate between inflammation of an emotional or spiritual kind and a physical cause. Our body responds to stress, whether itâs from poor oral health, an infected tooth, or an infected attitude. Stress can take many forms. For example, fatigue and exhaustion are forms of stress; trauma, accident, or injury are stressors; so too are fear, depression, anxiety, and extremes of elation, grief, and mourning. So stress itself inflames. Knowing this is useful. While it is difficult to directly monitor CRP levels, we can begin to understand and moderate stress; this is something we can do while sitting at the kitchen table.
So, no CRP barometer at home? Ask yourself, What can I do to reduce my stress level?
Identifying stressors and slowly working to eliminate them when we are able to helps us support general health and the health of our immune systems. It often seems that over the short term stress is manageable, tolerable. But stress can be cumulative. A twinge from food stuck in the mouth is a passing discomfort, but a stressor nonetheless; a sustained tenderness or sensitivity in the mouth draws our attention again and again. Chronic stress, be it physical, mental, emotional, or spiritual, takes its toll, as the body is not designed to parry chronic inflammation.
We cannot separate the mind and the body. When we are happy, we can measure the bodily changes that result. Too, our reactions extend to the mouth. Stress measured in the mouth can interrupt function.
DIGESTIVE HEALTH
Just as too many weeds will choke many a plant and too much rust will impede the smooth movement of a bicycle chain, similarly inflammation can disrupt digestion. We have been taught that the digestive system plays an important role in our ability to utilize the nutrients in our food. But letâs stop and consider: everything we eat and drink contains microorganismsâbacteria, viruses, even fungi. Our exposure to these organisms helps each of us build a robust immune system. Yet as food and drink enter the digestive system, microorganisms challenge our immune system too. We now recognize that a healthy digestive system enhances immune function, and much of the immune system resides in the digestive tract, between the mouth and the rectum. Yes, it all begins in the mouth.
âChew your drink and drink your food,â suggested Mahatma Gandhi. Chewing food thoroughly allows saliva to coat each morsel. This initiates the digestive process and begins the extraction of nutrients. Straightforwardly, the more we chew, the more efficient the digestive process. When we chew insufficiently we limit the bodyâs ability to extract nutrients. We also provide a breeding ground for inflammation, as bulk accumulating in the colon limits contact with digestive enzymes and can promote colonization by microorganisms. As well, chewing thoroughly can help ease symptoms of flatulence (gas), bloating, constipation, stomachache, cramps, and even diarrhea.
As soon as food and drink enter the mouth, the action of saliva can be detected. So begins the digestion of carbohydrates (starches) and fats, with enzymes contained in salivaânamely, amylase (also called ptyalin) and lipase (also called lingual lipase)âexcreted by the salivary glands (see chapter 2). Herbs, foods, drink, pharmaceuticals, emotions, illness, disease, and stress all mediate oneâs saliva levels. Sometimes even fear can leave us with a dry mouth.
Sufficient saliva production helps sustain the internal environment of the mouth in many ways, not the least of which is moderating a balanced microbial population. Saliva also helps moderate inflammation and infection. Indeed, chronic inflammation of the mouth can drain immune reserves and may set up a chain of responses whose roots are in the mouth.
THE MOUTH, DISEASE, AND ILLNESS
These are not simple, straightforward relationships. While rates of decay are now considered to have reached epidemic proportions among young people in the United States, it is possible, with attention and care, to avoid teeth becoming decayed, filled, or even pulled. In fact, some of us are prone, through birthright, accident, or fate, to have healthier mouths than others.
Even more alarming is the growing epidemic of gum disease among American adults. Chronically poor oral health and periodontitis, gum disease, has been linked with numerous systemic inflammatory diseases (see chapter 14). We neednât think that the link between oral health and a range of systemic inflammatory conditions is new. Historically, perhaps the most famous is scurvy. But it was more than 100 years after Scottish physician James Lind (1716â1794) published A Treatise of the Scurvy, detailing the beneficial effects of vitamin C in avoiding the disease, when Willoughby D. Miller (1853â1907), an American dentist, published his seminal work âThe Mouth as a Focus of Infection.â Yet between the end of the nineteenth century and today, notions surrounding oral health have shifted; only relatively recently hav...