7 Goldman-Fox Knife

The 7 Goldman-Fox Knife is a double-ended periodontal soft tissue instrument developed by Drs. Harry Goldman and Leon Fox, constructed from surgical-grade stainless steel with a heavy shank and two oval-shaped blades angled with special blade geometry for long bevel incisions. The oval blade profile — wider and more rounded than spear-point designs — allows the inner concave edge to seat flush against the retro-molar pad and posterior gingival surfaces without the tip catching adjacent tissue. Both working ends are angled in opposing directions from the central handle axis, enabling mesial and distal access to posterior sites from a single instrument. As seen in the image, the handle carries a green-toned ringed knurled barrel providing a secure grip throughout the incision stroke.

The Perio Knife Goldman-Fox N.7 is distinct from other Goldman-Fox figures by its heavy shank — a thicker, stiffer shank section that transmits controlled force to the oval blade during long bevel cuts through dense gingival tissue. Figures 8 and 11 carry spear-pointed blades for interdental cutting, while figure 7 targets broad facial and posterior gingival surfaces requiring a sweeping bevel incision. The stainless-steel body is fully autoclavable and maintains blade geometry through repeated sterilization cycles.

Periodontists use the 7 Goldman-Fox Knife during gingivectomy and gingivoplasty procedures to place the initial external bevel incision. The surgeon positions the oval blade against the keratinized gingiva at a 45-degree angle to the tooth surface and sweeps it coronally to excise the diseased gingival wall in one continuous stroke. The oval blade’s inner edge is especially suited for the retro-molar region, where gingival tissue morphology changes and straight-bladed knives lose contact with the tissue surface.

The 7 Goldman Fox Periodontal Knife is a dependable first-choice instrument for posterior gingivectomy trays. Leader Surgical produces this knife to consistent blade geometry, verified stainless steel composition, and sterilization-safe finishing standards for reliable clinical performance.

What is the specific purpose of the Goldman-Fox 7?
The No. 7 is a specialized gingivectomy knife primarily used for initial bevel incisions during gum reshaping. It is uniquely effective for:

• Retro-molar access: Its oval blade shape allows the inner portion to reach the back of the mouth easily.
• Interdental cutting: It is designed to cut interdentally after an initial incision has severed tissue bucco-lingually.
• Long bevel incisions: The heavy shank and specific blade angulations are optimized for creating a long, smooth bevel.