Lungs & Intestines

In the meridian model used in biological dentistry, the upper premolars and lower molars are described as lying on the lung–colon (large intestine) meridian, which is thought to link teeth, respiratory and digestive zones. (Source)

Meridian tooth charts from holistic clinics similarly map premolars to the lung and large-intestine pathways, and associate these teeth with regions such as the shoulders, elbow and lumbar spine as part of the same energetic circuit. (Source)

Dental and hygiene literature describes tooth–organ meridians as a traditional Chinese medicine concept: it postulates energetic pathways linking teeth with organs such as lungs and intestines, but this is not part of conventional biomedical diagnostics. (Source)

Responsible bio dentistry treats meridians as a complementary lens alongside evidence-based oral and medical findings, so decisions about lung or gut disease still rely on standard investigations while dental foci are addressed objectively. (Source)

Recent reviews describe an “oral–lung axis”, where bacteria from dental plaque and periodontal pockets can be aspirated into the lower airways, contributing to dysbiosis, inflammation and worsening of chronic respiratory diseases such as COPD. (Source)

Microbiome and immunology studies report that periodontitis is associated with higher respiratory pathogen load and inflammatory mediators in the lungs, and that treating gum disease may reduce exacerbations and symptom burden in susceptible patients. (Source)

Tooth–organ connection charts used in holistic dentistry link premolars and certain molars with the large intestine and stomach meridians, suggesting that long-standing infections, heavy-metal load or missing teeth in this region could stress the corresponding organ system. (Source)

Clinics note that malocclusion, chronic root infections, metal restorations or implants in these teeth can “overstimulate” or “block” meridians, and that some patients report changes in bloating, bowel rhythm or abdominal tension after targeted biological restoration, although this is based mainly on clinical experience. (Source)

Because bacteria from the mouth can be aspirated into the lungs, biological and hospital-based dentistry emphasise meticulous plaque control, antiseptic rinses and suction during surgical procedures, especially in patients with chronic lung disease. (Source)

For high-risk patients, some centres coordinate closely with pulmonologists, adjust sedation or anaesthesia strategies, and schedule intensified hygiene before and after surgery to lower the oral bacterial load and support safer healing. (Source)

Holistic clinics describe that metals, amalgam and certain alloys can “irritate” or “block” meridian pathways, so they favour zirconia ceramics and other high-bio-compatibility materials on teeth connected to sensitive organ systems such as lungs and intestines. (Source)

They also highlight that ceramic implants and restorations tend to accumulate less plaque and do not corrode, which aligns with goals of reducing chronic inflammatory load that could impact both oral and systemic health. (Source)

Meridian-based charts associate the lung–large-intestine pathway with musculoskeletal zones such as shoulders, elbows and the lumbar spine, so some biological dentists include a focused assessment of premolars and lower molars when such complaints are present. (Source)

Clinically, this means checking for old root treatments, hidden infections, metal restorations or missing teeth in these segments and, when indicated, restoring them with biocompatible, metal-free solutions while encouraging patients to pursue standard orthopaedic or physiotherapy evaluation in parallel. (Source)