Table 1.

List of autoimmune disorders and different types of cancer associated with periodontitis.

Autoimmune disease (reference no.)	Cancer type (reference no.)
Rheumatoid arthritis (11,33)	Pancreatic cancer (52)
Type 2 diabetes mellitus (33,53)	Orodigestive cancer (54)
Alzheimer’s disease (55)	non-Hodgkin lymphoma (41)
Systemic lupus erythematosus (56)	Lung Cancer (57)
	Head and neck SCC (58)
	Breast cancer (59)
	Prostate cancer (60)
	Proximal colorectal neoplasms (61)
	Oral cancer (62,63)
	Gastrointestinal cancers (64)