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Related Experiment Videos

Pins and posts--why, when and how.

A A Caputo, J P Standlee

    Dental Clinics of North America
    |April 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Pins and posts are crucial for retaining dental restorations and protecting teeth. Proper biomechanical application of these systems, particularly parallel, serrated, cemented posts, maximizes retention while minimizing tooth structure damage.

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    Area of Science:

    • Operative Dentistry
    • Biomaterials in Dentistry
    • Restorative Dentistry

    Background:

    • Pins and posts are essential components in restorative dentistry for retaining dental prostheses.
    • Their effective use relies on understanding and applying biomechanical principles tailored to individual clinical scenarios.
    • No single pin-post design is universally applicable, necessitating case-specific selection.

    Purpose of the Study:

    • To outline the biomechanical principles for optimal utilization of pin-post systems in conservative operative dentistry.
    • To identify ideal pin-post characteristics and methods for enhancing retention when needed.
    • To emphasize the importance of combining pin-post use with veneer restorations for long-term success.

    Main Methods:

    • Discussion of biomechanical principles governing pin-post retention and tooth structure preservation.

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  • Analysis of factors influencing retention, including pin-post dimensions (length, diameter, number) and material properties.
  • Consideration of dentin resilience as a factor in achieving increased retention.
  • Emphasis on the synergy between pin-post systems and veneer restorations.

    • Main Results:

    • The ideal pin-post system involves a parallel, serrated, cemented device within a precisely matched channel.
    • Increased retention can be achieved by modifying pin-post length, diameter, or number, or by leveraging dentin elasticity.
    • Enhanced retention strategies carry an increased risk of damaging tooth structure.

    Conclusions:

    • Optimal long-term outcomes are achieved when pins and posts are used judiciously with veneer restorations.
    • Proper application of pin-post systems can significantly contribute to tooth preservation and reduce restoration failure rates.
    • Dentists must balance the need for retention with the potential risks to tooth structure.