Facts about Gingiva
- 11
Bleeding during probing, detected when a periodontal probe causes gum tissue to bleed, indicates gingival inflammation and serves as a clinical indicator of early-stage periodontal disease in dental examinations.
- 10
Saliva produced by salivary glands bathes the gingiva with antimicrobial proteins including lysozyme and immunoglobulin A, which inhibit bacterial colonization and reduce periodontal disease risk by up to 50 percent.
- 09
Hemidesmosomes anchoring gingival epithelium to the underlying basement membrane contain integrin α6β4, a protein complex that creates exceptionally strong adhesion bonds preventing gum tissue separation during mastication.
- 08
Gingival fibroblasts produce new collagen and extracellular matrix components continuously, with studies showing gum tissue undergoes complete structural renewal approximately every 3 to 4 weeks.
- 07
Collagen comprises approximately 90 percent of the dry weight of gingival tissue, providing the structural strength and resilience necessary for gums to withstand the mechanical forces of chewing and tooth brushing.
- 06
Approximately 30 percent of gingival tissue consists of blood vessels that supply oxygen and nutrients to support the continuous regeneration and immune function of gum tissue.
- 05
Free gingiva, the unattached portion of gum tissue that forms the gingival margin, displays a stippled texture resembling orange peel due to its dense collagen fiber arrangement and serves as a protective barrier against pathogens.
- 04
Attached gingiva, which comprises approximately 50 percent of the total gingival tissue in most individuals, is firmly bound to underlying bone and does not move during mastication.
- 03
Keratinocytes within gingival tissue complete their full lifecycle and migrate from the basal layer to the surface in approximately 3 to 7 days.
- 02
Inflammation of the gingiva, called gingivitis, affects approximately 90 percent of the global population to some degree during their lifetime.
- 01
The healthy gingiva typically measures 1 to 3 millimeters in depth from the gum line to the base of the sulcus in human oral anatomy.