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Related Experiment Video

Updated: Jul 13, 2026

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
07:14

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

Published on: May 24, 2022

Retention of three endodontic post systems.

John Peters1, Gad Zyman, Enrique Kogan

  • 1Department of Endodontics, College of Dental Medicine, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, Florida 33328, USA.

American Journal of Dentistry
|August 4, 2007
PubMed
Summary

PeerlessPosts demonstrated superior retention compared to Fiber White Posts and DT Light Posts in this study. This indicates significant differences in post retention, rejecting the initial hypothesis.

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Area of Science:

  • Dental Materials Science
  • Prosthodontics
  • Biomaterials Engineering

Background:

  • Post-endodontic restorations require predictable retention for long-term success.
  • Various post systems exist, each with unique material properties and designs that may influence retention.
  • Evaluating the retentive capacity of different post systems is crucial for clinical decision-making.

Purpose of the Study:

  • To compare the retention of three distinct post systems (Fiber White Para-Post, DT Light Post, PeerlessPost) when used with a single adhesive and luting cement.
  • To test the hypothesis that there is no significant difference in retention among the evaluated post systems.

Main Methods:

  • 90 single-rooted human bicuspids were endodontically treated and obturated.
  • Three groups received different post systems: Fiber White Para-Post, DT Light Post, and PeerlessPost.

Related Experiment Videos

Last Updated: Jul 13, 2026

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
07:14

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

Published on: May 24, 2022

  • Posts were cemented, and tensile stress was applied using an Instron universal testing machine until failure. Load at failure was recorded.

    • Main Results:

    • PeerlessPosts exhibited the highest mean load at failure (126.07 kg), significantly greater than the other groups.
    • Fiber White Posts (90.14 kg) and DT Light Posts (88.46 kg) showed no statistically significant difference in retention between them.
    • Analysis of Variance (ANOVA) confirmed a statistically significant difference among the three post systems.

    Conclusions:

    • The PeerlessPost system demonstrated significantly higher retention compared to Fiber White Posts and DT Light Posts.
    • The null hypothesis of no significant difference among post systems was rejected.
    • Clinical selection of post systems should consider their differential retentive capabilities.