Clinical Evaluation of Two Post Systems for Single Crown Restoration of Anterior Teeth

Condition(s) studied

Investigational drug(s) / intervention(s)

Custom-Fit UHMWPE Fiber Post with Composite Core: Participants receive a custom-fit UHMWPE fiber post, individually adapted to the canal at chairside, followed by a composite core build-up and definitive crown restoration.

Study summary

This randomized controlled trial evaluates two post systems used to restore endodontically treated (root canal treated) maxillary anterior teeth with 1-2 missing coronal walls. Participants will be randomly assigned to receive either a custom-adapted polyethylene fibers post (Ribbond-type, individually formed) or a prefabricated fiber post, followed by a composite core and crown restoration. The primary outcome is the distance between the post and the remaining root canal filling (gutta-percha), measured radiographically, which reflects how well the post adapts within the canal. The secondary outcome is post and restoration retention, assessed clinically using USPHS criteria. Participants will be followed for 6 months. The study aims to determine whether a custom-fitted fiber post provides better adaptation and retention compared to a standard prefabricated fiber post in teeth with significant structural loss.

Eligibility

Primary outcome measure(s)

• Post-Gutta-Percha Gap Distance — Immediately post-cementation (baseline)
  Distance between the outer surface of the cemented post and the residual root canal filling (gutta-percha), measured radiographically at the coronal, middle, and apical thirds of the post space. Reported both as a continuous measurement (mm) and dichotomized as no gap versus any measurable gap.

Trial sites (1)

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