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Related Experiment Videos

Extension for prevention: is it relevant today?

J W Osborne1, J B Summitt

  • 1Department of Restorative Dentistry, School of Dentistry, University of Colorado Health Science Center, Denver 80282, USA.

American Journal of Dentistry
|July 1, 1999
PubMed
Summary
This summary is machine-generated.

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The historical "extension for prevention" dental concept is now outdated. Modern conservative cavity preparation techniques preserve more tooth structure, improving long-term oral health.

Area of Science:

  • Dentistry
  • Restorative Dentistry
  • Dental Public Health

Background:

  • The principle of 'extension for prevention' in dentistry, advocating for the removal of sound tooth structure to create self-cleansing margins, has evolved over a century.
  • Initially accepted due to advancements like gold casting, the concept faced challenges by the mid-20th century regarding its conservativeness.

Purpose of the Study:

  • To review the historical development and current standing of the 'extension for prevention' concept in cavity preparation.
  • To highlight the shift towards more conservative cavity preparation methods that prioritize preserving sound tooth structure.

Main Methods:

  • Historical review of dental literature and concepts related to cavity preparation.
  • Analysis of the evolution of 'extension for prevention' from early 20th-century practices to contemporary approaches.

Related Experiment Videos

Main Results:

  • The traditional 'extension for prevention' concept, which involved extensive removal of healthy tooth tissue, is no longer considered a standard principle.
  • Current evidence supports conservative cavity preparations, including fissure sealants and strategic margin placement, to conserve tooth structure.

Conclusions:

  • Modern dentistry emphasizes minimizing the removal of sound tooth structure, contrasting with older 'extension for prevention' philosophies.
  • Conservative cavity preparation techniques, including appropriate margin placement and the use of fissure sealants, are crucial for long-term tooth preservation and patient oral health.