Zirconia

ZrHP Diamonds — for Zirconia & Lithium Disilicate Restorations

High-performance HP-shank diamonds designed specifically for adjusting, contouring, and finishing fully sintered zirconia and lithium disilicate restorations. Available in multiple grits for every stage of the workflow.

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ZrHP Diamond instruments for zirconia and lithium disilicate restorations

HP-Shank Diamonds Built for Hardened Ceramics

ZrHP Diamonds are Wagner Precision’s dedicated HP-shank (handpiece-mount) diamond instruments
for adjusting and finishing fully sintered zirconia and lithium disilicate restorations. Where
general-purpose diamonds dull quickly and generate dangerous heat on these ultra-hard materials,
ZrHP Diamonds maintain cutting efficiency through a high-concentration diamond bond formulated
specifically for post-sinter ceramic hardness.

Ideal for laboratory technicians needing rapid material removal during occlusal adjustment,
and for clinicians making chairside corrections on delivered restorations.

Key Characteristics

  • High-concentration diamond bonding for sustained cutting on sintered ceramics
  • HP-shank format — compatible with slow-speed and high-torque handpiece systems
  • Multiple grit options from coarse reduction to super-fine pre-polish
  • Reduces heat generation compared to standard dental diamonds on zirconia
  • Consistent diamond distribution from tip to shank for predictable removal rates
  • Available in multiple shapes for targeted clinical and laboratory applications

Shank Type

HP (Handpiece) — 2.35 mm shank diameter

Compatible with all standard slow-speed and electric handpieces. For FG (friction grip)
applications, see Diacool Ice.

ZrHP Diamond instruments assorted grits

Available Grits

Grit ISO Color Clinical Application
Coarse Red Aggressive material removal, initial adjustment
Medium Blue Contouring, occlusal refinement
Fine Yellow Surface smoothing, margin finishing
Extra Fine White Pre-polish surface preparation
Super Fine Light Blue Final surface refinement before polishing

Compatible Materials

  • Sintered zirconia (all translucency levels)
  • Lithium disilicate (e.max CAD, e.max Press)
  • Leucite-reinforced ceramic
  • Hybrid ceramic blocks

Shapes for Every Clinical Situation

ZrHP Diamonds are available in multiple head geometries to address the full range of
chairside and laboratory adjustment needs on zirconia and lithium disilicate restorations.

Flat-End Cylinder

Flat surface reduction, proximal contact adjustment

Tapered Cylinder

Subgingival margin access, axial wall shaping

Flame / Pointed Cone

Interproximal embrasures, fossa detail

Round / Ball

Central fossa, cusp tip rounding

Inverted Cone

Undercut creation, cervical cavosurface margin

Wheel / Disc

Occlusal groove refinement, ridge morphology

Getting the Most from ZrHP Diamonds

Speed & Pressure

Run ZrHP Diamonds at 100,000–180,000 RPM with continuous air/water spray
coolant. Light, continuous strokes outperform heavy single-stroke passes — allow the diamond
to cut without forcing pressure through the instrument.

Intermittent engagement (pecking motion) helps clear ceramic debris from the diamond surface
and prevents premature loading of the abrasive bond.

Grit Sequencing

Always progress from coarse to fine in sequence. Skipping a grit step leaves a deeper
scratch pattern that the finer instrument cannot fully remove, resulting in a suboptimal
surface and increased polishing time.

For chairside single-step adjustments where only minor reduction is required, the medium
(blue) grit is an acceptable starting point. Always finish with fine or extra-fine before
polishing.

Build Your Complete Workflow

Pair ZrHP Diamonds with these instruments for a complete ceramic finishing system.

Try ZrHP Diamonds

Contact us to learn more about our products.