Root canal spreaders create the space for accessory gutta-percha cones during lateral condensation, a pointed tip forced alongside the master cone, which is what separates a spreader from the flat-tipped plugger used for vertical compaction. Peak Surgicals supplies nine patterns with 0.20mm to 0.55mm tips in German stainless steel, from $3.63 to $11.00. Each is CE marked and built under ISO 13485. Compare all nine spreaders in the grid below.

Spreader or Plugger: Which for Which Technique?

A spreader has a pointed, tapered tip that wedges alongside the master cone to open lateral space for accessory cones, while a plugger has a flat tip that compacts gutta-percha vertically toward the apex, the pointed versus flat tip is the whole distinction, and it decides the obturation technique. Cold lateral condensation is the spreader's technique; warm vertical compaction is the plugger's.

In lateral condensation, the spreader is pre-fit to within 1 to 2mm of the working length before obturation begins. After the master cone is seated, the spreader is forced down alongside it, wedging the cone against the canal wall and opening a channel; when withdrawn, an accessory cone is placed into that channel, and the cycle repeats until the canal is filled. Tip taper matters here an accessory cone larger than the spreader's taper produces voids, so cone and spreader are matched. The MA57 (PS-D-103), GP2 (PS-D-101) and GP3 (PS-D-102) spreaders run defined ISO tapers from 0.20mm, while the posterior spreader (PS-D-095, 0.55mm) carries an angled shank for molar access. The single-ended 40S pattern (PS-D-099, $3.63) is the entry point. We supply every pattern at MOQ 1.

Tip Taper, Working Length and Fit

Tip taper is the specification that governs the fill. A spreader pre-fit to 1–2mm short of the working length defines how deep the accessory cones seat, and the taper determines how much lateral space each pass opens — too aggressive a taper wedges the master cone hard against the wall and risks vertical root fracture, too fine a taper opens insufficient space and leaves voids. The 0.20mm through 0.55mm range here covers fine apical work to wider coronal condensation.

Finger spreaders short-handled instruments controlled by the fingers, give the tactile feedback that lateral condensation depends on, letting the operator feel resistance and stop before over-wedging. Shank length and angle set the reach: straight patterns work anterior and premolar canals, while the posterior pattern's angled shank clears the opposing arch for molar access. Working-end markings verify depth against the radiographic working length. The technique is controlled placement, not force the spreader opens space, it does not drive the fill.

Reprocessing, Tip Integrity and Certification

These spreaders are forged from German stainless steel, corrosion-resistant across repeated steam autoclave cycles, and holding the fine pointed tip that lateral condensation depends on. The tip is the inspection point: a bent or blunted spreader tip no longer wedges cleanly alongside the master cone, changing the space it opens, so check tips after each cycle and set aside any that have deformed. Ultrasonic-clean before autoclaving so gutta-percha and sealer residue does not set on the working end.

Every instrument is Class I, reusable, CE marked and built under ISO 13485, the documentation a dental supply team verifies before qualifying a vendor. Warranty is one year with return-and-replacement, MOQ is 1 piece, orders over $99 ship free in carton box packing, and OEM marking is available for distributors. For vertical compaction see root canal pluggers; related patterns sit in endodontic excavators. Browse all endodontic instruments. Talk to us about OEM and volume terms.