1/2 Orban Periodontal Knife

The 1/2 Orban Periodontal Knife (Article# LS1-324) is a double-ended instrument with two spear-shaped blades — one double-angled and one triple-angled — each carrying sharp cutting edges on all sides of the narrow blade tip. The contra-angled shank on each working end bends toward the posterior arch, directing the spear tip into tight interproximal embrasure spaces without handle obstruction on adjacent teeth. The round ringed knurled handle is machined from 440A surgical-grade stainless steel, measuring 165 mm (6.5 inches) overall with the balance point centered at mid-handle for stable push and lateral incision strokes.

The thin, spear-shaped blade geometry on the Orban Knife 1/2 keeps the working tip narrow enough to enter interproximal spaces without displacing the interdental papilla prior to incision. Both cutting edges along the blade sides remain active simultaneously, allowing the clinician to incise tissue on the entry and exit stroke without repositioning the blade face. The 440A stainless steel alloy holds its edge sharpness through repeated autoclave sterilization at 134°C without surface oxidation or blade deformation across extended clinical cycles.

Periodontists use the 1/2 Orban Periodontal Knife during gingivectomy, gingivoplasty, and modified Widman flap procedures to excise interproximal gingival tissue and make secondary beveled incisions through keratinized gingiva. The KNIFE ORBAN 1/2 specifically targets posterior interproximal sites where the contra-angled shank provides direct blade access to col areas and tissue wedges between maxillary and mandibular posterior teeth during resective periodontal surgery.

Leader Surgical has spent years earning the trust of oral surgeons and dental professionals who measure quality not by packaging but by how an instrument actually performs when it matters most in the operatory.

What is the difference between an Orban and a Kirkland knife?
The Kirkland knife usually has a larger, kidney-shaped blade used for broad gingivectomy incisions on the facial or lingual surfaces. In contrast, the Orban knife is spear-shaped and used for the supplemental excision of tissue between the teeth.