there is a direct connection from one end to the other. mouth problems, in fact any skin problems we can see, are a direct reflection of internal health. heart disease has been directly linked to dental health and hygeine. ear wax is a sign of a liver which is backing up.
what surprises me the most is how adaptable the body is and how much abuse it can take and still function. this happens so much and so automatically, many people assume their dysfunctions and adaptations are normal.