Inverted Cone Burs – Precision Burs for Undercuts & Retention in Restorative Dentistry

Inverted Cone Burs are specialized dental rotary instruments characterized by a narrow neck and wider cutting head, designed to create retentive undercuts, flat pulpal floors, and precise internal line angles. They are commonly used in cavity preparation, especially for Class I and Class II restorations, where mechanical retention is required.

Available in carbide and diamond variants, inverted cone burs provide controlled cutting and excellent access in confined areas.

Key Features

• Inverted Cone Geometry: Ideal for creating undercuts and retention grooves

• Controlled Cutting Action: Accurate shaping with minimal chatter

• Material Options:

  • Carbide – Efficient cutting of enamel and dentin

  • Diamond – Smoother abrasion for controlled finishing

• Flat-End Design: Helps achieve uniform pulpal floors

• Standard Shank Compatibility: FG / RA options depending on model

• Autoclavable & Reusable

Clinical Applications

• Cavity preparation (Class I & II)

• Creating mechanical retention for restorations

• Shaping internal line angles

• Refining pulpal floors

• Restorative and operative dentistry

Product Specifications

• Product Type: Dental Inverted Cone Bur

• Category: Dental → Rotary Instruments & Burs

• Shape: Inverted cone

• Material: Tungsten carbide / Diamond-coated (model dependent)

• Shank Type: FG (high-speed) or RA (low-speed)

• Grit (Diamond): Coarse / Medium / Fine (varies by model)

• Reusable: Yes (with proper sterilization)