Types, Causes, and Epidemiology of Dental Caries

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Questions and Answers

Which of the following is the primary result of dental caries?

  • Destruction of the hard tissues of the tooth (correct)
  • Gingival recession
  • Tooth hypermobility
  • Increased saliva production

What does the 'M' stand for within the DMFT index?

  • Moderate fluoridation
  • Minimal decay
  • Missing (correct)
  • Modified

Which factor directly influences an individual's susceptibility to dental caries?

  • Salivary flow rate (correct)
  • Eye color
  • Hair texture
  • Height

According to research, the absence of oral hygiene combined with frequent sucrose exposure can lead to enamel caries within what timeframe?

<p>3 weeks (B)</p> Signup and view all the answers

Which of the following best describes a non-surgical approach to managing existing dental caries?

<p>Application of fluoride (A)</p> Signup and view all the answers

Besides smooth surfaces, pits, and fissures, where else can caries form?

<p>Root (B)</p> Signup and view all the answers

Which of the following is an indicator measured by the DMFT index?

<p>Caries prevalence (A)</p> Signup and view all the answers

What is the primary purpose of restoring function in the management of dental caries?

<p>Improve speech and eating (A)</p> Signup and view all the answers

Which of the following types of teeth is located most posteriorly in the dental arch?

<p>Molars (A)</p> Signup and view all the answers

What is the significance of the Vipeholm study in understanding dental caries?

<p>It showed that diet (cariogenic substrate) can influence caries development. (E)</p> Signup and view all the answers

Flashcards

Dental Caries

Plaque-related disease leading to destruction of tooth's hard tissues (enamel and dentine).

Types of Teeth

Incisors, canines, premolars, and molars.

Main Tooth Structures

Enamel, dentin, pulp, and cementum.

Purpose of DMFT index

To measure caries prevalence in a population.

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DMFT Meaning

Decayed, Missing, Filled Teeth/Surfaces. (Adult teeth are represented by captial letters and baby teeth by lowercase letters.)

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Main factors in dental caries

Microflora, Host, Diet and Time

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Salivary Factors Affecting Caries

Flow rate and buffering capacity.

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Study Notes

  • There are four types of teeth: incisors, canines, premolars, and molars.

Dental Caries

  • Dental caries is a plaque-related disease that destroys the hard tissues of a tooth, including the enamel and dentine.
  • Tooth tissue destruction may result in poor aesthetics, loss of function, and pain ranging from mild discomfort to constant and intense.
  • Management includes relieving pain, arresting progression, preventing new caries, and restoring aesthetics and function.
  • Caries can form on the crown (smooth surfaces, pits, and fissures) and the root.

Epidemiology of Dental Caries

  • The DMFT index is a measure of caries prevalence and experience in a population.
  • DMFT stands for decayed, missing, and filled teeth, with capital letters for adult teeth and lowercase for baby teeth.
  • Between 1980-1991 the mean DMFT level in 12-year-olds was measured in developing and industrialized countries.
  • Trend in dental caries was measured as DMFT in 12 year olds between 1967-1983
  • Oral health and dental caries were measured in Australia

Factors in Caries Development

  • Four main factors have been identified as key to dental caries development.

Microflora's Role

  • Studies show that rats without oral microflora do not develop dental caries.
  • A clean tooth will not decay.
  • Enamel caries can develop within 3 weeks when there is a lack of oral hygiene and rinsing with a sucrose solution nine times per day.

Host Factors

  • Host factors affect susceptibility to dental caries.
  • Salivary factors such as flow rate and buffering capacity play a role.
  • Tooth anatomy and exposure to fluorides are tooth factors.

Diet

  • The Vipeholm study indicates that diet specifically cariogenic substrates are a factor.

Time

  • A period of time is required for lesions to appear.

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