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Related Experiment Videos

Root fracture with dentin-retained posts.

H Boyarsky, R Davis

    American Journal of Dentistry
    |February 1, 1992
    PubMed
    Summary
    This summary is machine-generated.

    Dentin-retained posts (Flexi-post and Vlock) showed no increased risk of root fracture compared to endodontic therapy alone. Teeth undergoing endodontic treatment were more prone to incomplete root fractures.

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    Area of Science:

    • Dentistry
    • Endodontics
    • Dental Materials

    Background:

    • Root fractures are a concern in endodontically treated teeth.
    • Dentin-retained posts are used to reinforce endodontically treated teeth.
    • Understanding the fracture risk associated with different post systems is crucial.

    Purpose of the Study:

    • To compare the incidence of incomplete root fractures in human teeth with and without dentin-retained posts.
    • To evaluate the fracture risk of Flexi-posts and Vlock posts versus conventional endodontic therapy alone.

    Main Methods:

    • In vitro study using 80 extracted human mandibular canines.
    • Teeth underwent pulpectomy, endodontic therapy with gutta-percha, and post placement (Flexi-post, Vlock, or no post).
    • Teeth were stained, sectioned, and examined for fractures under a stereomicroscope.

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    Main Results:

    • No complete root fractures were observed in any group.
    • Incomplete fractures occurred in two teeth from the endodontic treatment only group, two from the Flexi-post group, and two from the Vlock group.
    • No fractures were found in the control group (no endodontic treatment).

    Conclusions:

    • Flexi-post and Vlock post placement do not increase the likelihood of root fracture compared to endodontic therapy alone.
    • Conventional endodontic therapy alone may be associated with a higher incidence of incomplete root fractures than teeth not treated endodontically.