12 Knife

Precision Plaster Trimming for Dental Model Preparation

Achieving accurate dental models requires precise manipulation of plaster and stone materials. The 12 Knife serves as an essential hand instrument within the dental laboratory workflow, designed specifically for trimming, shaping, and refining gypsum-based casts. Its specialized blade geometry allows for controlled removal of excess material, supports clean margins and smooth surfaces on diagnostic models. By providing a reliable tool for detailed sculpting, this instrument helps dental professionals maintain the integrity of anatomical features while efficiently preparing bases for articulation or appliance fabrication. The robust construction supports repetitive use in high-volume settings, offering the stability needed for fine adjustments without compromising the structural accuracy of the final prosthesis or study model.

Use Cases

• Trimming excess plaster from dental impressions and study models to establish uniform base thickness
• Shaping and smoothing the edges of gypsum casts to supports proper fit within articulators
• Refining surface details on diagnostic models prior to the fabrication of custom trays or appliances
• Removing flash and irregularities from poured stone models to enhance visualization of anatomical structures

Care & Handling

• Clean thoroughly after each use to remove all plaster residue and prevent material buildup on the blade
• Inspect the cutting edge regularly for signs of dullness or damage that may affect trimming precision
• Store in a dry, protected environment to maintain instrument integrity and prevent corrosion

Specifications

Specifications

General use; follow facility protocols.