What is Plaque?
Key points
- Plaque is the accumulation of bacteria, microorganisms and their products which sticks to the tooth surfaces.
- Calculus can form when plaque is not removed from the tooth surfaces.
- Some common features associated with gingivitis are red and swollen gums, and the presence of bleeding while brushing and flossing.
- Periodontal disease affects the periodontium (the supporting structures of the teeth).
Plaque is the accumulation of bacteria, microorganisms and their products which sticks to the tooth surfaces. Dental plaque is soft and easily removed by brushing and flossing the teeth. Accumulation of plaque can lead to gum disease (gingivitis) and periodontal disease, as well as tooth decay.
What is Calculus (Tartar)?
Calculus is dental plaque that has mineralized. Calculus can form when plaque is not removed from the tooth surfaces. This plaque becomes old and eventually forms into calculus. Calculus can form above or below the gumline. The bacteria that sticks to calculus can cause gum disease (gingivitis) or periodontal disease. Calculus cannot be removed by brushing and flossing. A dental hygienist checks for calculus formation when you visit the dental office. It is removed with special instruments designed to adapt to the tooth surface affected without causing trauma to the soft gums.
What is Gingivitis?
Gingivitis is inflammation of the gums. Some common features associated with gingivitis are red and swollen gums, and the presence of bleeding while brushing and flossing. The cause of gingivitis is the bacteria in dental plaque. This disease is reversible with good oral hygiene practices.
What is Periodontal Disease?
Periodontal disease affects the periodontium (the supporting structures of the teeth). The cause of this disease is multifactorial, but the presence of bacteria in plaque certainly plays a major role. The supporting periodontal structures begin to breakdown. This can mean that part of the bone that supports the teeth or the ligaments that hold the teeth securely in place are destroyed. This disease process is generally not reversible and may require treatment from a dental professional specializing in periodontal disease. Periodontal disease can develop as a result of poor daily plaque control (e.g. brushing and flossing). However, not everyone with poor brushing and flossing techniques will develop this condition. It is wise to visit your dental hygienist or dentist regularly in order to detect early stages of the disease and to prevent further damage.
What is a Cavity?
A cavity is the destruction of the tooth enamel, dentin, cementum and may involve the tooth pulp.
How does a Cavity Form?
The formation of a cavity is due to many factors. For example, the tooth itself plays a role (how strong it is); the mouths ability to cleanse itself (your flow of saliva); diet (frequency and selection of sugary foods); the bacteria in your mouth (good or bad); and the length of time the tooth is under attack by the bacteria in your mouth.
Heredity: may play a major role in how susceptible you are to the formation of a cavity, for example:
Written and revised by
Gerald Hurowitz, M.D.
Our doctors write and review articles for accuracy and keep them up to date.
health.am provides general information, not medical advice. Always consult a qualified health professional about your own health.
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