Root canal irrigation depends on five supply decisions: the irrigant, the chelator, the needle, whether you activate the solution, and the final rinse. This guide follows the American Association of Endodontists' (AAE) irrigant guidance and matches most steps to endodontic irrigation supplies available from EBIKO Dental, with CAD pricing as of October 2026.
Shaping files get most of the attention in endodontics, but the AAE's Colleagues for Excellence issue on root canal irrigants makes a pointed case for the other half of the job: "what you take out of a root canal may be more important than what you put in it." The same AAE publication describes the main objective of endodontics as eliminating microorganisms from the root canal system and preventing recontamination.
Files alone can't do that. Instrumentation leaves a smear layer on the canal walls that, according to the AAE, contains inorganic and organic material, microorganisms and necrotic debris. Irrigation is how that layer and the debris beyond the reach of files get dealt with. As of October 2026, this guide walks through what the AAE says about each part of irrigation and which supplies fit each step, for general dentists and endodontists across Toronto, the GTA and the rest of Canada.
What Does the AAE Say About Root Canal Irrigants?
The AAE issue (Winter 2011) is direct about the limits of every option: none of the irrigants in current use has all the characteristics of an ideal irrigant. That is one reason irrigants are often used together; the AAE describes 17% EDTA followed by a final NaOCl rinse.
Sodium hypochlorite: the tissue dissolver
The AAE calls sodium hypochlorite (NaOCl) the most commonly used root canal irrigant, used in dilutions from 0.5% to 5.25%. Free chlorine in NaOCl dissolves vital and necrotic tissue. Lowering the concentration reduces its toxicity, but also its antibacterial effect and its ability to dissolve tissue. NaOCl does not remove all of the smear layer, and the AAE notes that exposure to oxygen, room temperature and light can significantly inactivate it, which matters if your practice decants from a large bottle kept on a counter.
EDTA: the smear layer remover
According to the AAE, chelating agents such as ethylenediaminetetraacetic acid (EDTA) remove the inorganic portion of the smear layer, while NaOCl handles the remaining organic components. The AAE describes irrigation with 17% EDTA for one minute, followed by a final rinse with NaOCl, as the most commonly recommended method for removing the smear layer. Longer exposures can remove too much peritubular and intratubular dentin. EDTA also has little or no antibacterial effect on its own, so it complements NaOCl rather than replacing it.
Saline: a rinse, not a disinfectant
The AAE states that irrigants with antibacterial properties are clearly more effective at reducing bacteria than saline. The AAE notes that saline irrigation does reduce bacteria, but antibacterial irrigants are clearly more effective.
Chelating Agents and Canal Lubricants
Your EDTA choice mostly comes down to format, bottle size and how many operatories draw from it.
- Pulpdent 17% EDTA Endodontic Solution: a neutral-pH chelating solution for instrumentation and smear-layer removal, available in 30, 60, 120 and 480 mL bottles. The 30 mL bottle is listed at $22.99 CAD and the 480 mL at $77.99 CAD. Smaller bottles suit a single endo operatory where the solution turns over quickly.
- Mark3 EDTA Solution 17%: an aqueous 17% EDTA solution in a 500 mL bulk bottle, listed at $26.99 CAD. A practical choice for multi-operatory practices that go through EDTA steadily.
- Premier RC-Prep Root Canal Preparation: a cream rather than a rinse. Premier's formula combines EDTA and urea peroxide in a water-soluble glycol base, lubricates files during negotiation and shaping, and effervesces on contact with sodium hypochlorite to help lift debris. Two 9 g syringes are listed at $51.99 CAD.
Pro Tip: Time the EDTA step. The AAE describes one minute of 17% EDTA as the common protocol and warns that longer exposure can over-remove dentin. A chairside timer is cheaper than an eroded canal wall.
Irrigation Syringes and Needles: Where Safety Is Decided
The AAE is clear that extruding NaOCl into the periapical tissues can cause severe injury to the patient. Its guidance for reducing that risk is practical:
- Place the needle short of working length.
- Make sure the needle fits loosely in the canal.
- Inject with a gentle flow rate.
- Keep the needle moving up and down so it doesn't wedge.
- Use side-vented irrigation tips, which the AAE says reduce the possibility of forcing solution into the periapical tissues.
Two EBIKO Dental options cover the main delivery formats:
- Plasdent Monovac Endo Irrigation Syringe with 27 Gauge Side-Vented Needle: a pre-assembled 3 cc Luer-lock syringe with a 27 gauge side-vented needle, so irrigant exits laterally rather than through an open end. The yellow hub identifies the gauge, and each assembly is latex-free, single-use and gamma-sterilized. A pack of 100 is listed at $59.99 CAD. Pre-assembly saves a step at the chair.
- Monoject 412 Curved Tip Irrigation Syringe, 12 mL: It is designed for pressure irrigation, including endodontic and wound irrigation. The pre-bent curved tip helps access, and the barrel is ungraduated. It is non-sterile and not made with natural rubber latex. A box of 50 is listed at $26.99 CAD.
Pro Tip: Colour-code your syringes by solution. Keep one syringe for NaOCl and one for EDTA, and label them. Keeping them separate preserves the EDTA-then-NaOCl sequence.
Irrigant Activation: Sonic and Ultrasonic Devices
Activation devices agitate the irrigant inside the canal. The AAE reports that sonic and ultrasonic methods produce better canal cleanliness than conventional syringe needle irrigation. It also adds a caveat worth keeping in mind before you buy: there is no high level of evidence linking these devices to better treatment outcomes, and the AAE calls for clinical data. Think of activation as a way to improve canal cleanliness, not as a guarantee of success.
- Eighteeth Ultra X Cordless Ultrasonic Activator: a cordless, contra-angle ultrasonic device running at 45 kHz, with two power modes and a 1500 mAh battery that Eighteeth rates for up to 4.5 hours of operation. Listed at $399.99 CAD. Replacement Ultra X tips are listed at $19.99 CAD each: Silver (soft, flexible) for irrigant activation in difficult curved canals, Blue (flexible) for curved canals and gutta-percha removal in retreatment, and Gold (rigid titanium) for retrieving separated instruments and posts. Eighteeth instructs that the tips be used passively, never wedged.
- Eighteeth SurfyOne Sonic Activator: a cordless sonic device with a brushless motor driving a flexible polymer tip, operating at 40 to 400 Hz. It also has a mode to help place bioceramic sealer. The kit includes 40 activation tips and is listed at $449.99 CAD; replacement tips come in packs of 5 at $29.99 CAD and, per Eighteeth, can be autoclaved at 134 °C up to 10 times.
The choice between the two is mostly about technique preference. Ultrasonic tips offer extra uses such as retreatment and fragment retrieval; a flexible polymer sonic tip may suit clinicians who prefer a polymer tip in curved canals.
Rinse and Final Flush
Saline 0.9% Sodium Chloride, 1000 mL is a sterile, isotonic irrigation solution, listed at $10.99 CAD. Use it where your protocol calls for a saline rinse, keeping in mind the AAE's point that it is not a substitute for an antibacterial irrigant.
Building an Irrigation Supply List for Your Practice
For a practice setting up or restocking endodontic irrigation, a complete list covers five categories:
- Primary irrigant: sodium hypochlorite at the concentration your protocol specifies, stored sealed and away from light and heat.
- Chelator: 17% EDTA in a bottle size matched to your volume, plus a lubricant cream such as RC-Prep if you use one during negotiation.
- Delivery: side-vented needles for intracanal irrigation, and curved-tip syringes where your workflow uses them.
- Activation (optional): a sonic or ultrasonic activator with spare tips.
- Rinse: sterile saline.
Pro Tip: Check your irrigant stock at the same time as your file inventory each month. Running out of side-vented needles mid-week is exactly when an open-ended needle gets substituted.
Always follow each manufacturer's instructions for use, and confirm a product's Health Canada licensing status for your intended use if you have any doubt.
Shop Endodontic Irrigation Supplies at EBIKO Dental
EBIKO Dental ships across Canada from the GTA, with free shipping on orders over $99 CAD in the GTA, over $199 CAD in Ontario, and over $299 CAD Canada-wide, plus a price match guarantee. Browse the full range of endodontic and other dental supplies at ebiko.ca.
What does your irrigation sequence look like, and has activation changed how you approach curved canals? Share your protocol with fellow clinicians.
Sources
- American Association of Endodontists: Endodontics: Colleagues for Excellence, Root Canal Irrigants and Disinfectants (Winter 2011, PDF)
- Product details: product descriptions on the linked EBIKO Dental product pages
Frequently Asked Questions
Q: How long should 17% EDTA stay in the canal?
The AAE describes irrigation with 17% EDTA for one minute, followed by a final rinse with sodium hypochlorite, as the most commonly recommended method for removing the smear layer. It warns that longer exposure can remove too much dentin.
Q: Why use a side-vented irrigation needle?
According to the AAE, side-vented irrigation tips reduce the possibility of forcing solution into the periapical tissues. The AAE also recommends keeping the needle short of working length, loose in the canal, and moving, with a gentle flow rate.
Q: Does ultrasonic or sonic activation improve root canal outcomes?
The AAE reports that sonic and ultrasonic agitation produce better canal cleanliness than conventional syringe irrigation. However, it notes there is no high level of evidence linking these devices to better treatment outcomes.