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Related Experiment Videos

Endodontic complications after plastic restorations in general practice.

J M Whitworth1, P M Myers, J Smith

  • 1School of Dental Sciences, University of Newcastle, Newcastle-upon-Tyne, UK. j.m.whitworth@ncl.ac.uk

International Endodontic Journal
|May 25, 2005
PubMed
Summary

Dentine and pulp protection using conditioning-and-sealing is as effective as calcium hydroxide lining for up to 36 months. Deep cavities and composite restorations were linked to increased pulp breakdown, highlighting residual dentine thickness as a key factor.

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Area of Science:

  • Restorative Dentistry
  • Dental Materials Science
  • Pulp Biology

Background:

  • Dentine and pulp protection are critical in restorative dental procedures.
  • Conventional calcium hydroxide lining has been a standard for decades.
  • Newer techniques like conditioning-and-sealing require efficacy comparison.

Purpose of the Study:

  • To evaluate if conditioning-and-sealing is non-inferior to calcium hydroxide lining for dentine and pulp protection.
  • To identify factors influencing pulpal breakdown post-restoration.

Main Methods:

  • A randomized controlled trial involving 602 healthy adults requiring posterior tooth restorations.
  • Cavities were treated with either calcium hydroxide lining or conditioning-and-sealing.
  • Restorations were monitored for pulpal breakdown up to 36 months.

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  • Logistic regression analyzed treatment variables and pulp outcomes.

    • Main Results:

    • No significant difference in pulp protection between conditioning-and-sealing and calcium hydroxide lining up to 36 months.
    • Pulp breakdown was strongly associated with deep or pulpally exposed cavities (OR 7.8) and composite restorations (OR 2.13).
    • Pulpal exposure was the primary determinant of adverse pulp outcomes (OR 28.4).

    Conclusions:

    • Conditioning-and-sealing offers comparable pulp protection to calcium hydroxide lining in routine dental care.
    • Residual dentine thickness is a crucial factor in pulp response to restorative treatment.
    • Composite resin restorations in deep or exposed cavities showed higher rates of pulpal breakdown compared to amalgam.