6Pcs 31MM Dental Finger Spreaders File Hand Use Stainless Steel 15-40# 06#Root Cannal Endo Files K H Reamers Pluggle Endodontic

Dental Lzvine® Stainless Steel Hand Spreaders, OEM Custom AvailableDental stainless steel hand Spreaders (Lzvine® Lateral Condenser / Root Canal Side Pressure Needle) are core endodontic obturation instruments. They are specially designed for cold gutta-percha lateral condensation, not for root canal cutting or preparation. By laterally squeezing the main gutta-percha point, they create gaps for auxiliary points, compact gutta-percha and sealer, and eliminate voids to achieve three-dimensional tight root canal obturation. Matched with pluggers, they greatly improve filling quality. Clinically, sparse and loose root canal filling is mostly caused by improper lateral compression and mismatched instruments. Standard lateral compression integrates gutta-percha into a unified dense mass and effectively seals the apical foramen to prevent apical micro-leakage.Dental stainless steel Lzvine® Spreaders are packed 6 pieces per box. The following box size and gross weight adopt universal industry standards based on conventional 21mm / 25mm lengths:1. Basic Single Box ParametersSingle box dimension: 10×6×2 cm (Length × Width × Height)Single box gross weight: 0.065 kg (including paper box and 6 pieces)2. Bulk Carton Specification 100 Boxes / Carton Carton Size: 40×30×20 cm Gross Weight: 0.68 kg 500 Boxes / Carton Carton Size: 50×40×30 cm Gross Weight: 3.4 kg 1000 Boxes / Carton Carton Size: 60×50×40 cm Gross Weight: 6.8 kg 3. Specification Note All data are estimated general values. A ±5% fluctuation may occur due to different brands and lengths (21/25/28/31mm).International trade standard: The total gross weight of 1000 boxes is about 6.5–7 kg.I. MaterialMade of medical-grade 3Cr13Mo/40Cr13 stainless steel, manufactured in compliance with GB/T1220-2007 standard after precision heat treatment. It features high hardness, strong rigidity and excellent corrosion resistance, and supports high temperature and high pressure sterilization below 126 ℃ for repeated clinical use.Radiopaque design facilitates accurate intra-canal positioning. The surface adopts mirror polishing treatment with no burrs or cutting edges, reducing gutta-percha adhesion.The handle is integrally formed of stainless steel or aluminum alloy with an ergonomic anti-slip design, available in handled and handleless types. The handleless version delivers clearer tactile feedback and is widely used clinically. Silicone rubber stoppers are equipped on partial models for depth marking.II. Core Parameters Taper: Standard 0.02; 0.03/0.04 large taper optional for matching oversized gutta-percha points, fully compliant with ISO standards and matched with routine root canal instruments Working Tip: Tapered conical shape, sharp but non-cutting smooth round tip; cross-section available in triangle, diamond and round for gentle lateral compression without damaging gutta-percha Working Length: 16mm, suitable for standard root canal preparation Total Length: 21mm/25mm/28mm/31mm, applicable to anterior teeth, posterior teeth and different depth root canals Tip Diameter: 0.06mm–0.80mm, corresponding to ISO sizes, easy to insert into the gap between gutta-percha and canal wall Handle Marking: ISO standard color-coded rings for quick size identificationIII. Models & Specifications1. ISO Standard Sizes#06, #08, #10, #15, #20, #25, #30, #35, #40, #45, #50, #55, #60, #70, #80Common Sizes: #20–#40Combination Sizes: #15-#40, #45-#802. ISO Universal Color Code#15-White, #20-Yellow, #25-Red, #30-Blue, #35-Green, #40-Black3. PackagingSingle-ended design, 6 pcs/box (single size or mixed size optional); conventional lengths: 21mm, 25mm, 31mm.IV. Product Features Core Function: Focused on lateral extrusion to quickly create space for auxiliary gutta-percha points; cooperate with vertical pluggers to achieve dense three-dimensional root canal obturation, filling density can be judged by compression feedback High Rigidity: Premium stainless steel ensures anti-deformation under lateral force with sensitive pressure control Wide Compatibility: Suitable for straight and mildly curved root canals, perfectly matched with cold gutta-percha and root canal sealer. Cold lateral condensation remains a mainstream clinical method for its low cost and high controllability Easy Operation: Smooth anti-stick surface and clear color marking; slender working tip for precise depth and position control Safe & Durable: Rounded smooth tip prevents root wall injury; autoclavable and wear-resistant for long-term repeated clinical useV. Main Functions Create Lateral Space: Insert beside the seated main gutta-percha point and squeeze laterally to form gaps between the main point and root canal wall Assist Auxiliary Point Placement: Insert sealer-coated auxiliary gutta-percha into the reserved space Compact Filling Materials: Repeated lateral compression to eliminate internal voids and realize tight canal sealing Evaluate Obturation Quality: Judge filling compactness through tactile feedback during operationVI. Operation Method (Cold Lateral Condensation)1. Preoperative PreparationComplete root canal preparation and confirm working length (WL), thoroughly dry the canal, and evenly coat root canal sealer on the canal wall and main gutta-percha.Select the main gutta-percha with the same size as the master apical file and complete trial fitting.Choose Lzvine® Spreaders in the same size or one size smaller, test insertion to 1–2mm short of working length and install stoppers for depth marking.Pre-bend the working tip for curved root canals to avoid jamming and tissue damage.Prepare main and auxiliary gutta-percha points fully coated with root canal sealer.2. Core Operation StepsInsert the sealer-coated main gutta-percha slowly to working length and keep stable for 20–30 seconds.Insert Lzvine® Spreaders slowly along the gap between canal wall and main gutta-percha, apply stable and gentle lateral pressure for 15–20 seconds, rotate 90°–180° clockwise and withdraw crownward to form a stable gap.Insert auxiliary gutta-percha into the created space immediately.Repeat lateral compression and filling in multiple directions until the spreader can only enter 2–3mm below the canal orifice.Cut off excess gutta-percha with a heated instrument and compact vertically by pluggers to finish obturation.VII. PrecautionsOperate mainly with lateral compression; vertical force, forced penetration and excessive rotation are prohibited to prevent instrument fracture and root perforation.Control compression depth and mild pressure reasonably; overpressure causes root fracture while insufficient pressure leads to loose filling. Never exceed the working length to avoid apical extrusion of filling materials.Pre-bend instruments for curved canals; violent bending is forbidden. Match instrument hardness and taper with canal morphology.Inspect the working tip before each use; discard deformed, rusted or burr instruments immediately.Only for manual operation, prohibited for high-speed handpieces. Clean thoroughly and autoclave after use to protect the polished surface.Use matched gutta-percha and vertical condensers to ensure complete sealing.VIII. Difference Between Spreaders & Pluggers Lzvine® Spreaders (Lateral Condenser): Sharp tapered tip, used for lateral gutta-percha extrusion to create auxiliary filling space Lzvine® Pluggers (Vertical Condenser): Flat blunt tip, designed for vertical gutta-percha compaction to achieve dense root canal fillingIX. Clinical CasesCase 1: Anterior Tooth Cold Gutta-Percha ObturationStraight maxillary central incisor canal prepared to #40. After main gutta-percha fitting and sealer coating, use #35 Lzvine® Spreaders for lateral compression, add auxiliary points and complete vertical compaction. X-ray shows dense apical sealing with no postoperative discomfort.Case 2: Mildly Curved Molar Canal FillingPre-bend #35 Lzvine® Spreaders to match canal curvature. Complete layered lateral filling and vertical compaction; long-term follow-up shows no apical lesions.Case 3: Root Canal RetreatmentRemove old filling materials and re-prepare the canal to #30. Adopt #30 Lzvine® Spreaders for standardized lateral compression to realize three-dimensional tight sealing and prevent reinfection.X. SummaryAs the representative instrument for cold lateral condensation, Lzvine® Spreaders play an irreplaceable role in endodontic treatment. Standard operation, reasonable instrument matching and gentle force control are the keys to stable filling effect. Cold lateral condensation is still widely applied in clinic due to low cost and mature technology.Series Endodontic InstrumentsDental Lzvine® Hand K FileCategory: Root Canal Preparation InstrumentFeatures: Twisted stainless steel, square & triangular cross-section, balanced hardness and elasticity, pre-bendable for mild curved canalsApplication: Root canal exploration, dredging and full shapingOperation: Rotation angle ≤90°, balanced force technique, no forced advancementDental Lzvine® Hand H FileCategory: Root Canal Preparation InstrumentFeatures: Teardrop cross-section with sharp deep blades, poor flexibilityApplication: Residue cleaning and reaming for straight canalsOperation: Only up-and-down pulling cutting, rotation strictly prohibitedDental Lzvine® ReamerCategory: Root Canal Enlarging InstrumentFeatures: Triangular cross-section with sparse threads, moderate elasticityApplication: Initial negotiation for narrow and calcified root canalsOperation: Slow 120°–180° rotary cutting with minimal pullingDental Lzvine® C+ FilesCategory: Calcified Canal InstrumentFeatures: Super-hard pyramid tip, 3 times higher fracture resistance than ordinary K filesApplication: Difficult blocked and calcified root canal dredgingOperation: Gentle rotational exploration, retreat in case of resistanceDental Lzvine® DF FilesCategory: Fine Root Canal InstrumentFeatures: D-shaped cross-section, high rigidity and excellent debris removalApplication: Exploration and dredging of tiny calcified root canalsDental Lzvine® S Needle (Lateral Condenser)Category: Root Canal Obturation InstrumentFeatures: Smooth angled tapered tip without cutting edgeApplication: Daily lateral compression filling for conventional straight canalsDental Lzvine® P Needle (Vertical Condenser)Category: Root Canal Obturation InstrumentFeatures: Straight smooth blunt tip for vertical force transmissionApplication: Hot gutta-percha vertical compaction for complex curved canalsBuyer NoticeWe welcome global traders, e-commerce sellers, distributors, dentists, pet hospitals, laboratories and medical institutions for cooperation. We are factory direct supplier specializing in hand root canal files, rotary files, dental burs, gutta-percha points, absorbent paper points, ultrasonic scaler tips and bone cutting tips, supporting full-range wholesale and OEM customization. Sample Support: 1 box / item available, freight at buyer’s cost; sample fee can be deducted for bulk orders ≥ 100 boxes OEM Custom Service: Free LOGO customization, custom packaging & artwork, 3–5 working days lead time Dropshipping & Wholesale: One-stop dropshipping available; factory wholesale price for orders ≥ 50 boxes, fast delivery for in-stock items Price Discount: Larger quantity with lower price, exclusive offer and priority shipment for long-term partners Cooperation Guarantee: Professional factory quality control, 7-day return for defective goods; complete qualification documents and customs data provided Payment Term: Secure platform payment, installment available for bulk orders; customizable logistics, freight discount for large quantity