Description:

The Plaster Knife #7 is a durable and essential tool used extensively in dental laboratories and prosthetic fabrication. It is specifically designed for working with dental stone, plaster, and other modeling materials, making it ideal for trimming, carving, and shaping dental models and appliances with precision.

This instrument features a wide, flat stainless-steel blade that is both strong and sharp, allowing technicians to cut through hardened plaster or sculpt softer materials with ease. The blade is securely attached to an ergonomic handle—typically made of wood or high-impact plastic—that provides a comfortable, non-slip grip. This design reduces hand fatigue and enhances control during extended use.

The #7 designation refers to the blade’s specific size and shape, which is well-suited for both detailed work and more robust sculpting tasks. It is commonly used to remove excess material, refine model contours, and create clean margins around impressions and stone casts.

In prosthodontic and orthodontic workflows, the Plaster Knife #7 plays a critical role in ensuring that models are accurately shaped, which directly impacts the fit and function of appliances such as dentures, crowns, and retainers. It is also frequently used for general lab maintenance, including scraping dried plaster and smoothing model bases.

Built for longevity, the knife withstands repeated cleaning and use without dulling or warping. Its reliability and versatility make it a staple in any dental lab’s toolkit.

In summary, the Plaster Knife #7 combines strength, precision, and ergonomic comfort to support high-quality craftsmanship in dental modeling. It is an indispensable tool for technicians focused on accuracy, efficiency, and professional results in prosthetic and restorative dentistry.