Clinical Overview
UniCore™ Post Size #4 is a refill pack containing five pre-silanated, translucent, radiopaque fiber posts with a 1.5 mm apical diameter and 19 mm length. Constructed from prestressed zirconia-reinforced glass fibers, these posts flex similarly to dentin—reducing stress concentration under functional loading while enhancing esthetics through deep light transmission. Each post is designed to match the companion UniCore drill size for a perfectly tapered post chamber and minimal invasive dentin removal.
Key Benefits
- Dentin-like mechanical behavior: With a flexural modulus (~43–44 GPa) and strength (~1,500–1,600 MPa) similar to dentin, UniCore reduces root-fracture risk while providing robust support.
- Esthetic & radiopaque structure: Translucent fibers allow deep light curing of resin cement, while radiopacity ensures definitive post position verification.
- Precision taper matching drill prep: Tapers (≈1.3°) follow natural canal anatomy and correspond to UniCore Drill Size 4 for a snug fit with minimal space.
- Microporous, pre-silanated surface: Promotes reliable micromechanical bonding without chairside silanization.
- Color-coded size #4: Green marking simplifies identification and coordination with the UniCore drill system; reusable up to five placements.
- Retreatable protocol: Paired UniCore drills with a heat-generating tip enable conservative removal in retreatment or channel adjustments.
Refill Pack Contents
- 5 × UniCore fiber posts (Size #4, 1.5 mm apical diameter, 19 mm length)
- Color-coded format (green) for consistent clinical workflow
Indications
- Retention post for endodontically treated teeth with limited coronal structure
- Esthetic cases where metal post show-through must be avoided
- Restorative bases for ceramic crowns, bridges, laminate veneers, or composite build‑ups
- Ideal when using dual- or light‑cure resin cements (e.g. PermaFlo DC), benefitting from deep light transmissibility
Instructions for Use
- Complete canal shaping and irrigation; confirm size, patency and partially dry canal (leave dentin moist).
- Trial fit a UniCore Post #4 to determine working length; cut post 1–2 mm short of canal depth, if needed.
- Apply luting resin cement into the post space via disposable tip; seat post slowly while rotating slightly to avoid voids.
- Excess cement is expressed coronally; clean margins before light-curing according to cement instructions.
- Evaluate post seating radiographically; proceed with core build-up and final restoration.
- For retreatment or post removal, use the corresponding UniCore Drill Size 4 with heat-generating tip—drill gently to soften fiber matrix while preserving remaining canal anatomy.
Summary
The UniCore™ Post Size #4 Refill Pack (Code 7128) provides dentists with a high-strength, dentin-mimetic fiber post system, ideal for centrally retained restorations in large or oval canals. Its tapered fit, light-transmitting design, and retreatable features offer exceptional clinical flexibility. Perfect for cases where esthetics, minimal canal preparation, and long-term stability matter most.
Manufacturer: Ultradent® Products, Inc., South Jordan, Utah, USA.
Regulatory: FDA-listed medical device (GUDID 00883205019707), CE-marked; single-use, sterile-packed; no natural latex.
Storage: Room temperature (15–30 °C), avoid excessive light exposure; avoid reuse of any post due to single-use risk.
Contraindications: Not for use if fiber or resin allergy is known; do not force excessive taper—use appropriate drill size.
Expiry: Individual sterilized pack expiry printed on module label.
For professional dental use only as part of a post-and-core protocol in endodontically treated teeth.
