Search the A-Z for the meaning of the word or simply to find out more about dental health.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
There are currently 16 names in this directory beginning with the letter S.
Saliva
The fluid which contains enzymes that is formed by glands in the mouth. The saliva helps to lubricate the mouth whilst the enzymes are an important part of digestion. Lack of saliva [dry mouth or xerostomia] is an extremely distressing condition which is experienced by an increasingly large proportion of the population. Saliva is responsible for lubricating the teeth and mouth tissues which makes chewing, eating, swallowing and speaking possible. It helps to cleanse the mouth, neutralise acid production, begin the digestion of carbohydrates, repair the early damage caused by tooth decay, and it has the ability to protect against infection. A healthy adult produces about 500mls per day and the flow normally increases at meal times in response to chewing. Some sour fruits such as lemons will promote an exaggerated flow of saliva.
Sealants
A plastic coating which, when applied to the grooves and pits on the biting surfaces of children's teeth, can protect them from decay. If a small amount of decay has already occurred in part of a groove the decay must be removed. Provided the resulting cavity is small, a sealant restoration can still be used to fill the hole and seal the remaining grooves.
Secondary Teeth
The permanent teeth that replace the deciduous(primary) dentition.
Sedation
The use of safe and effective drugs to help nervous and apprehensive patients to relax. It ensures that the patient is fully conscious, but at the same time relaxed and co-operative. The dentistry is carried out under local anaesthesia to eliminate any painful experiences and patients often forget about their dental treatment and find the events difficult to recall. Hypnotherapy and even acupuncture have also been used to reduce dental anxiety.
Sensitivity [dentine sensitivity]
The painful sensation that occurs when dentine is exposed by caries, fracture of the enamel, or recession of the gums.
Sinus
An opening into a tract of tissue which is linked to the oral cavity. Usually associated with an infected tooth root. Also a term used in association with the major air cavities in the maxilla which can become infected and give rise to sinusitis.
Sinusitis
An infection of the cavities in the maxilla situated behind the cheek-bone. The symptoms can frequently give rise to toothache in the upper premolar and molar regions. Fluid can build up and the pain can be made worse by sudden movement of the head. Antibiotics may be required. Inhalation with eucalyptus and menthol can help to alleviate the discomfort and clear the sinuses.
Snoring
Making a variety of noises when exhaling during sleep. About 40% of the population snore. At best it is a nuisance but at worst it can give rise to serious medical problems. Invariably snoring occurs whilst sleeping on one's back and it is caused by a temporary blockage of the airways by the soft tissues at the back of the throat. More modern methods involve the fitting of appliances in the mouth to prevent the soft tissues obstructing the airway. In exceptional circumstances surgery may be required. There are a number of dental surgeons who specialise in treating snorers.
Soft Drinks
Manufactured fluids drunk to relieve thirst or by habit. Commonly containing sugar and/or carbon dioxide Fizzy drinks (whether diet or regular), artificial fruit squashes, cocoa, and milk shakes all cause harm to teeth. The sugar in them causes decay whilst the acid in both normal and diet drinks dissolves the enamel on the teeth. Comfort feeders and bottles containing sugary drinks, which are given to young children for prolonged periods of time, cause severe dental problems, because they bathe the teeth in sugar that quickly converts to acids.
Specialised services
Dentists who offer services in addition to those connected with general dental practice. Many practices offer a range of specialised services that may not be covered by General Dental Council specialists (see A-Z specialist). The comprehensive list of dental 365 services includes :- Anxiety clinic Cosmetic dentistry Crown and bridgework Dental implants Denture services Endodontics General dentistry Holistic Home visits Hygienist Minor oral surgery Occlusion Oral medicine Oral Surgery Orthodontics Out of hours emergency cover Paedodontics Periodontology(gum care) Preventative dentistry Prosthodontics Restorative dentistry Second opinions Sedation for anxious patients Specialist referrals Surgical dentistry
Specialist
The General Dental Council maintains a Register of dental surgeons who are qualified to practice dentistry in the UK. In addition it has lists of specialists who have obtained certification in particular areas of dentistry which recognises their higher level of knowledge, experience and qualification. These specialist areas are:- Oral Surgery Restorative Dentistry Dental Public Health Surgical Dentistry Endodontics Periodontics Prosthodontics Paediatric Dentistry Orthodontics Oral Medicine Oral Microbiology Oral Pathology Dental and Maxillofacial Radiology
Stomatitis
Inflammation of the tissues of the mouth. It is particularly common in denture wearers where food debris and bacteria can quickly set up an inflammatory condition. Denture-induced stomatitis is a condition caused by candida, a fungus infection. It is manifested as redness in the gum covered by a denture, often without soreness. Persistent cracking or soreness at the corners of the mouth (angular chelitis) may also be a sign of oral candida infection.
Supernumerary
Extra or additional to the normal. A supernumerary tooth does not resemble the morphology of another in the dental arch and will have developed from an aberrant tooth germ. An additional tooth which resembles the morphology of another is called a supplemental tooth.
Suppuration
The presence of pus as a result of a spreading infection.
Surgical Dentistry
Radical treatment of dental problems e.g. infected root tip.
Suture
[see Stitch]