Looking at the insights of Donguibogam through modern science clarifies many connections. Halitosis, aphthous ulcers, and xerostomia are tied closely not only to conditions in the mouth, but to systemic health as a whole.
Most cases of halitosis are driven by volatile sulfur compounds. These compounds are produced mainly when anaerobic bacteria living in white tongue coating, inflamed gums, and dental caries break down protein. When salivary flow drops and the mouth becomes dry, these bacteria proliferate more actively, worsening the odor. A distinct halitosis can also stem from systemic conditions, such as gastric acid backing up in reflux esophagitis, diabetic ketoacidosis, decreased liver function, or uremia from renal failure. The stomach heat described in Donguibogam does not mean a simple sensation of warmth in the stomach; it serves as a thoughtful expression for modern clinical problems such as dyspepsia from stomach hypofunction, reflux esophagitis, or gut dysbiosis.
Aphthous ulcers are small ulcers on the oral mucosa. Modern medicine attributes them to stress, sleep deprivation, fatigue, deficiencies in nutrients such as vitamin B12, iron, and folic acid, decreased immunity, hormonal shifts, oral trauma like biting the tongue or burns from hot food, and genetic factors. The perspective in Donguibogam that heat sits in the heart and spleen aligns with modern explanations: emotional distress and stress (heart heat), along with nutritional imbalance and weakened immunity from impaired digestion and absorption (spleen heat), contribute directly to aphthous ulcers. Stress also influences the autonomic nervous system, reducing salivary flow and altering the oral immune response.
Xerostomia refers to reduced or absent saliva flow. Salivary output naturally declines with age, but medications for hypertension, antidepressants, and antihistamines are frequent causes. It can also be a symptom of systemic diseases like SjΓΆgren syndrome, diabetes, and Parkinson's disease. Severe stress and anxiety act on the autonomic nervous system, lowering salivary gland function. What Donguibogam describes as fluid deficiency or heat drying up body fluids corresponds closely to modern situations where salivary gland output declines due to chronic dehydration, medication side effects, autoimmune disease, or sympathetic hyperactivity brought on by stress. Beyond easing the process of swallowing food, saliva clears away oral bacteria, protects teeth, and aids digestion. Oral health is not an isolated condition, but a combined reflection of balance across the entire body.
