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A build-up of plaque and tartar (calculus) can lead to inflamed and infected gums. Mild gum disease is called gingivitis and is not usually serious. More severe gum disease, called periodontitis, can lead to teeth falling out. Good oral hygiene which includes regular tooth brushing and cleaning between teeth (eg, by flossing) can usually prevent gum disease, and treat mild-to-moderate gum disease. Specialist dental treatments may be needed for severe gum disease.
Dental plaque is a soft deposit that forms on the surface of teeth. It contains many types of germs (bacteria). You can usually remove plaque quite easily by tooth brushing and cleaning between teeth.
Calculus is hardened calcified plaque. It is sometimes called tartar. It sticks firmly to teeth. Generally, it can only be removed by a dentist or dental hygienist, with special instruments.
Gum disease (periodontal disease) means infection or inflammation of the tissues that surround the teeth. Depending on the severity, gum disease is generally divided into two types – gingivitis and periodontitis.
Gingivitis means inflammation of the gums. Most cases of gingivitis are caused by plaque. This is then called plaque- associated gingivitis.
Periodontitis literally means ‘inflammation around the tooth’. It occurs if gingivitis becomes worse and progresses to involve the tissue that joins the teeth to the gums (the periodontium), and/or the supporting bone.
As a consequence of periodontitis, a gap (pocket) develops between the tooth and gum. If left untreated, the tooth may slowly loosen and eventually fall out.
Dentists assess the severity of periodontitis by measuring the depth of the pockets that form between the gum and tooth.
Plaque can be removed from shallow pockets (up to about 3 mm deep) by brushing and cleaning teeth in a normal way. However, deeper pockets need to be treated by a dentist, as normal brushing and cleaning will not reach the bottom of the pocket.
Most people develop some dental plaque, but not everyone with plaque develops gum disease. Dental plaque contains many different types of germs (bacteria) and some types of bacteria are associated with developing gum disease. The gums can often resist, or limit, the invasion of bacteria. It is thought that a more marked gingivitis, which leads to periodontitis, is more likely to develop if you have a lot of plaque and/or your defense or resistance against bacteria is reduced in some way. The following increase your risk of developing marked plaque-associated gum disease:
An examination by a dentist to detect the presence and depth of gum pockets is needed to confirm the diagnosis of periodontitis.
Good oral hygiene helps to keep plaque down and usually prevents gum disease. (Good oral hygiene also helps to prevent tooth decay.) Good oral hygiene means:
Brushing your teeth – for two minutes, at least twice a day. Ideally, brush your teeth either just before eating, or at least an hour after eating. Studies suggest that powered toothbrushes with a rotation-oscillation action (where the brush rapidly changes direction of rotation) remove plaque and debris better than manual brushes.
Cleaning between your teeth after brushing once a day, but ideally twice a day. This is to remove plaque from between teeth. Dental floss is commonly used to do this. However, some studies suggest that small interdental brushes may do a better job than floss.
See a dentist or dental hygienist for advice if you cannot use a toothbrush. Children should be taught good oral hygiene as young as possible.
Have regular dental checks. A dentist can detect excessive build-up of plaque and remove tartar (calculus). Early or mild gingivitis can be detected and treated to prevent the more severe periodontitis. If you smoke, you should aim to stop smoking.
The measures above are usually sufficient. However, many people also use an antiseptic mouthwash each day which may help prevent gum disease.
If you have gingivitis
The measures described above to prevent gum disease will often clear mild gingivitis. If gingivitis is more severe, in addition your dentist or doctor may advise an antiseptic mouthwash (and/or antiseptic toothpaste, gel, or spray). These help to kill germs (bacteria) in the mouth and help to clear up any gum infection.
Chlorhexidine is a commonly used antiseptic mouthwash. If you are advised to use chlorhexidine, you should rinse your mouth well with water between brushing your teeth and using chlorhexidine. This is because some ingredients in toothpaste can inactivate chlorhexidine. Chlorhexidine may also stain teeth brown when used regularly. This staining is likely to need to be removed by a dentist or dental hygienist. Staining can be reduced by:
Brushing teeth before (but not after) using the chlorhexidine.
Avoiding drinks that contain tannin, within 2-3 hours of using chlorhexidine (for example, tea, coffee, and red wine).
Using the 1.2% solution instead of higher-strength solutions.
If you have periodontitis
You should see a dentist. In addition to the measures described above to treat gingivitis you may need specialist dental treatment. Various procedures may be done, depending on the severity of the condition and other factors. For example, in one procedure a dentist may clean a pocket next to a tooth where infection is present. Following this, a dentist may smooth out the surface of the tooth next to the gum. This helps the gum to close back on to the tooth, and for any pocket to disappear.
In addition to the benefits to your teeth, good mouth hygiene may have even further benefits. There is some evidence to suggest that poor oral hygiene is associated with an increased risk of developing heart diseases such as:
Heart attack and angina.
Other blood vessel-related problems (cardiovascular disease).