Rubber Dam Punches

Precision Perforation & Tear-Resistant Isolation Workflows

Achieving an impermeable, tear-resistant dry field begins with a clean, perfectly circular perforation. Micro-fissures or ragged edges produced by dull punch pins propagate into major tears when the dam sheet is stretched over retainers and passed through tight interproximal contacts. Our professional rubber dam punch collection is engineered for clean mechanical shear and repeatable indexing accuracy:

• Ainsworth Pattern Punches: The global clinical standard, featuring an open rotating disc with five or six graduated hole sizes. The external floating hinge mechanism delivers high mechanical leverage with minimal hand force, producing crisp cuts through heavy, medium, and thin dam gauges.

• Ivory Pattern Punches: Engineered with an internal enclosed cutting guide and direct axial punch strike, ensuring absolute pin-to-hole concentricity and preventing lateral pin deflection during rapid multi-hole preparations.

• Multi-Size Indexing Turrets: Precision-milled rotary tables offer graduated diameters (typically 1.0 mm to 2.5 mm) calibrated to match specific tooth anatomies—from lower incisors and canines to bicuspids, large molars, and anchor clamp holes.

• Positive Click-Lock Indexing: Firm detent ball bearings lock the selector wheel securely into alignment with the cutting tip, eliminating pin-to-plate misalignment and preventing sheared or blunted punch pins.

• Atraumatic Shear Geometry: Micro-honed punch pins shear against razor-sharp anvil dies, ensuring complete circle drop-out without leaving connected hanging chads or incomplete perforations.

Metallurgy, Durability & Sterilisation Protocols

• High-Hardness Martensitic Surgical Steel: The cutting pin and anvil disc are forged from cryogenically hardened stainless steel to preserve razor-sharp cutting edges and resist flattening over thousands of punch cycles.

• Zero-Play Box Lock Joints: Precision-machined pivot joints eliminate lateral wobble, guaranteeing that the punch pin strikes dead center in every selected turret position.

• Ergonomic, Spring-Return Handles: Contoured plier handles equipped with smooth leaf springs offer rapid self-opening action, reducing hand and forearm fatigue during full-arch multi-punch sequences.

• Infection Control & Autoclave Standards: Fully compliant with ultrasonic cleaning baths, automated thermal washer-disinfectors, and repeated steam autoclaving up to 134°C without joint seizure, spring fatigue, or edge dulling.