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Obtuse Angled SINUS LIFT
Double-ended stainless-steel sinus lift instrument with 4.0mm and 5.0mm concave blades on obtuse-angled shafts for controlled posterior membrane elevation.
Key Features:
• Surgical-grade stainless steel with dual 4.0mm and 5.0mm working blades
• Obtuse-angled shafts redirect force laterally for controlled membrane elevation
• Concave blades with rounded atraumatic tips minimize perforation risk
• Dual tip sizes support use in narrow and wider sinus regions
• Designed for posterior and lateral wall elevation in sinus augmentation
• Ringed knurled handle ensures secure grip and rotational control
• Enables access where straight or acute instruments are limited
• Autoclavable at 134°C with stable blade geometry under repeated use
Obtuse Angled SINUS LIFT
The Obtuse Angled Sinus Lift is a double-ended surgical-grade stainless steel instrument with two asymmetric concave blades; 4.0mm on one end and 5.0mm on the opposing end, each mounted on an obtuse-angled shaft that positions the working face at a wide-opening angle relative to the handle axis. The concave blade face on both ends curves smoothly to an atraumatic rounded tip. This obtuse angulation redirects the elevation force laterally and posteriorly into the sinus cavity, rather than apically against the membrane. The full-length ringed knurled handle provides stable, controlled grip throughout membrane elevation strokes.
The two different blade widths serve sequential roles: the 4.0mm end works within anatomically narrower sinus sections and smaller lateral windows, while the 5.0mm end covers broader membrane surface during progressive posterior wall elevation. The Maxillary Sinus Lift Instruments handle’s circumferential ring grip pattern allows the surgeon to maintain constant rotational orientation during directional elevation strokes. Both ends tolerate full steam autoclave sterilization at 134°C and standard ultrasonic cleaning without blade deformation or angulation change.
Oral and maxillofacial surgeons and implantologists use this Dental Sinus Lift Obtuse Angles instrument during the progressive membrane elevation phase of lateral window maxillary sinus floor augmentation. Following initial membrane separation with a standard curette, the obtuse-angled blade is introduced to extend elevation along the lateral and posterior sinus walls, areas where straight or acutely angled instruments cannot reach without applying excess perpendicular force, significantly reducing Schneiderian membrane perforation risk in deep posterior sinus anatomy.
For surgeons navigating the confined geometry of the posterior maxillary sinus, Leader Surgical provides an instrument whose angulation does precisely what angle-specific tools should, it matches the anatomy instead of fighting it.
What are the two types of sinus lifts?
There are two forms of sinus elevation surgery: an internal sinus lift and an external sinus lift. The type of sinus lift required depends upon the amount of native bone present at the time of surgery.
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