Subluxation

[1] According to the World Health Organization, a subluxation is a "significant structural displacement" and is therefore visible on static imaging studies, such as X-rays.

[5] In contrast to a luxation, which is a complete separation of the joint, a subluxation often returns to its normal position without additional help from a health professional.

In the spine, such a displacement may be caused by a fracture, spondylolisthesis, rheumatoid arthritis,[7] severe osteoarthritis, falls, accidents and other traumas.

[9] Dental subluxation is a non-dental-urgency condition, i.e., unlikely to result in significant morbidity if not seen within 24 hours by a dentist,[10] and usually treated conservatively: good oral hygiene with 0.12% chlorhexidine gluconate mouthwash, a soft and cold diet, and avoidance of smoking for several days.

Mainstream medicine and some mixer chiropractors consider these ideas to be pseudoscientific and dispute these claims, as there is no scientific evidence for the existence of chiropractic subluxations or proof they or their treatment have any effects on health.