Saliva
Clear lubricating fluid in the mouth containing water, enzymes, bacteria, mucus, viruses, blood cells and undigested food particles.

Saliva Ejector
Suction tube placed in the mouth to remove saliva.

Salivary Glands
Located under tongue and in cheeks, produce saliva.

Scaling and Root Planing
Meticulous removal of plaque and calculus from tooth surfaces.

Sealants
Thin resin material bonded in the pits and fissures of back teeth for the prevention of decay.

Secondary Dentin
Reparative tooth structure produced by the pulp in response to tooth irritation.

Sequstrum
Loosened spicule of bone pushed to the surface.

Sinusitis
Infammation of the sinus that may mimc dental pain.

Sleep Apnea
The periodic interruption or delay in breathing during sleep.

Space Maintainer
Dental device that holds the space lost through premature loss of baby teeth.

Splint
Connection of two or more teeth so they function as a stronger single structure.

Supernumerary Tooth
Extra tooth.

Suppuration
Bacterial contamination of tissue exudate; pus.