D.878.014.G.FGS parallel chamfer torpedo tip short shank

The Frank Dental Parallel Chamfer Torpedo Tip Crown Preparation Bur has been engineered to provide clinicians with precise margin formation, controlled axial wall reduction and highly predictable crown preparations for modern restorative and prosthodontic dentistry. Manufactured in Germany using premium natural diamond technology, this advanced diamond crown preparation bur combines efficient cutting performance with excellent concentricity, reduced vibration and long-lasting diamond retention, helping clinicians achieve smooth and accurate preparations with minimal pressure.

The torpedo-shaped working end has been specifically designed to create a parallel chamfer finish line with smooth internal geometry. Unlike shoulder preparations with sharp internal line angles, the rounded torpedo tip helps distribute occlusal forces more evenly throughout ceramic restorations. This is particularly important when preparing teeth for brittle restorative materials such as monolithic zirconia and lithium disilicate (E.max), where sharp preparation angles may increase stress concentration within the restoration and increase the risk of ceramic fracture or marginal chipping.

In restorative dentistry, preparation geometry plays a critical role in the long-term success of indirect restorations. The parallel chamfer design creates a smooth, curved finishing line that allows restorations to seat accurately while preserving healthy enamel and dentine. Compared to heavy shoulder preparations, chamfer margins are generally more conservative and can reduce unnecessary removal of sound tooth structure whilst still providing sufficient material thickness for modern ceramic and metal-based restorations.

The parallel axial walls produced by the bur improve retention and resistance form during crown preparation, making the bur particularly suitable for full coverage restorations, posterior crowns and CAD/CAM workflows. The smooth surface finish produced by the natural diamond coating also improves the accuracy of digital impressions and intraoral scanning by creating clearly identifiable preparation margins with minimal irregularities.

The Frank Dental Parallel Chamfer Torpedo Tip Bur is suitable for a wide range of restorative materials including zirconia crowns, lithium disilicate restorations, porcelain fused to metal (PFM) crowns, full gold crowns, ceramic overlays, onlays and digitally designed CAD/CAM restorations. Chamfer preparations are particularly recommended for monolithic zirconia restorations because zirconia requires less bulk material thickness compared to layered ceramics, allowing clinicians to maintain a more conservative preparation design without compromising restoration strength.

The torpedo tip profile also enhances access and visibility during crown preparation procedures. The rounded end geometry helps clinicians achieve smooth transition areas between the axial walls and preparation margins while reducing the risk of gouging or creating unsupported enamel. This improves marginal integrity and can contribute to improved restoration fit and longevity.

Natural diamond particles provide fast and controlled cutting efficiency with reduced heat generation compared to lower quality synthetic diamond coatings. Consistent diamond distribution across the working surface allows the bur to cut smoothly and predictably, reducing chatter and vibration during preparation. This not only improves clinician control but may also enhance patient comfort during longer crown preparation procedures.

The Frank Dental Parallel Chamfer Torpedo Tip Crown Preparation Bur is an ideal solution for clinicians seeking accurate crown margins, conservative tooth preparation and highly predictable restorative outcomes across modern ceramic, metal and CAD/CAM restorative systems.