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[Specific aspects of extraoral curing].

K J Reinhardt1

  • 1Zentrum für Zahn-, Mund- und Kieferheilkunde, Münster.

Deutsche Zahnarztliche Zeitschrift
|June 1, 1991
PubMed
Summary
This summary is machine-generated.

Extraoral post-curing of composite inlays using glycerin to exclude oxygen enhances polymerization. This method improves composite homogenization, achieving adequate material properties for dental restorations.

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Area of Science:

  • Dental Materials Science
  • Polymer Chemistry

Context:

  • Composite inlays are widely used in restorative dentistry.
  • Incomplete polymerization can lead to surface degradation and reduced mechanical properties.

Purpose:

  • To investigate an oxygen-excluded extraoral post-curing technique for composite inlays.
  • To evaluate the effect of glycerin on composite polymerization and surface properties.

Summary:

  • Composite inlays can be effectively post-cured extraorally by covering them with glycerin to exclude oxygen.
  • This technique, combining light and heat, improves polymerization of inhibited surfaces and insufficiently cured areas.
  • Surfaces treated without oxygen show a lower percentage of double bonds (21-26%) compared to conventional methods (28-48%), indicating altered polymerization dynamics.

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Impact:

  • This method offers a viable approach to achieve adequate homogenization of composite materials.
  • It potentially enhances the longevity and performance of composite restorations.
  • The technique's efficiency is minimally affected by prior conventional post-curing measures.