Selection of Materials for Post Cementation

From Volume 27, Issue 7, September 2000 | Pages 350-354

Authors

Christina A. Mitchell

BDS, FDS RCPS(Rest Dent) PhD

Senior Lecturer/Consultant in Restorative Dentistry, Division of Restorative Dentistry, School of Dentistry, The Queen's University of Belfast

Articles by Christina A. Mitchell

Abstract

Many types of cement are available for post cementation, each with advantages and disadvantages. For posts with adequate mechanical retention, zinc phosphate is a good choice for patients for whom fluoride release is not considered essential. Posts with compromised mechanical retention benefit from use of a resin-modified glass-ionomer cement, which also releases fluoride. Composite resin cements should be reserved for rare cases where mechanical retention is so compromised that use of a resin-modified glass-ionomer cement provides inadequate retention. Great care is required when using composite resin cements to ensure optimum performance and avoid the creation of difficult-to-remove excess cement. Clinicians should be aware that posts cemented with resin-modified glass ionomer or composite resin cements may be difficult or impossible to remove if access to the root canal system is subsequently required.

Article

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