Sledzenie klejow i systemow wiazania w stomatologii

Dental adhesives are some of the most expensive supplies per millilitre in any dental practice. A 5ml bottle of premium universal adhesive can cost between 80 and 140 euros. Multiply that by the 8 to 12 different bonding products a typical practice keeps in stock, and you are looking at over 1,000 euros sitting on a single shelf. When a bottle expires unused, that money is gone.

This guide covers how to track dental adhesives and bonding agents properly. It is aimed at practice managers, dental assistants who manage supply rooms, and dentists who are tired of opening a fresh bottle only to find another half-empty one in the back of the drawer.

Why Adhesives Need Special Tracking

Generic inventory tracking works for items where one unit equals one unit. A box of gloves is a box of gloves. You count boxes, you reorder boxes.

Adhesives are different in four ways.

**Short shelf life after opening.** Most adhesive bottles have a printed expiration date that assumes the bottle is unopened. Once opened, the practical shelf life drops dramatically. Universal adhesives often have a 30 to 60 day post-opening usability window even if the bottle is sealed between uses. Tracking the opening date matters more than tracking the printed expiry.

**Light sensitivity.** Light-cure adhesives degrade when exposed to ambient light. A bottle stored on an open shelf in a brightly lit operatory will perform worse than one stored in the original dark dispenser. Some products require refrigeration; others must not be refrigerated. Storage tracking belongs in the inventory record.

**Lot-level traceability requirements.** If a patient experiences a bonding failure or a hypersensitivity reaction, you need to know which lot of adhesive was used. Manufacturers occasionally issue recalls on specific lots. Without lot tracking, you cannot respond.

**Multiple competing systems.** Most practices use more than one adhesive system because different clinical situations call for different products. Total-etch for certain indications, self-etch for others, universal for routine cases. Tracking which is used where, and by whom, gives you cost-per-procedure data.

Categories of Dental Adhesives to Track

Before setting up tracking, organise your bonding products by category. The categories matter because each has different tracking needs.

Total-Etch (Etch and Rinse) Systems

These are the traditional three-step or two-step systems. The dentist applies phosphoric acid to etch enamel and dentin, rinses, applies primer, and then applies bonding resin. Examples include OptiBond FL, All-Bond 3, and Adper Scotchbond Multi-Purpose.

Track each component separately. The etch gel, primer, and bonding resin each have their own expiry and consumption pattern. Often the primer or bond runs out first while the etch is still nearly full.

Self-Etch Systems

These eliminate the separate etching step. The acidic primer and bond are combined or applied sequentially without rinsing. Examples include Clearfil SE Bond, AdheSE, and Xeno V+.

Track the kit components, but also track which clinical indications each system is used for. Self-etch is generally preferred for dentin-heavy preparations and for patients with sensitivity issues.

Universal Adhesives

The newest category. A single bottle can be used in total-etch, self-etch, or selective-etch mode depending on the clinical situation. Examples include Scotchbond Universal, Prime and Bond Universal, and All-Bond Universal.

Universal adhesives are the most common cause of expired-bottle waste because they last so long unopened that practices over-stock them. A clear inventory system prevents this.

Specialty Bonds

Some practices keep specialised bonding agents for specific applications: porcelain primers, metal primers, zirconia primers, fluoride-releasing bonds for paediatric work. Each has its own expiry and consumption rate.

What to Track for Every Adhesive

For each adhesive bottle, kit, or syringe, your inventory record should include:

The opening date is the field most practices skip. Add it. Use a permanent marker on the bottle if your system does not prompt for it, and log it in inventory at the same time.

The 30-Day Rule for Opened Adhesives

A practical rule that works for most adhesive products: once opened, use within 30 days. Some manufacturers allow longer; some recommend shorter. The 30-day rule simplifies decision-making and aligns with most manufacturer guidance.

Implement it like this:

You will be amazed how often a bottle gets pushed to the back of a drawer and forgotten. The 30-day prompt forces a decision: use it or write it off.

Storage Rules by Product Type

Different adhesive products require different storage. Get this right and you extend usable life. Get it wrong and you accelerate degradation.

**Universal and self-etch adhesives.** Usually store at room temperature, away from direct light. Do not refrigerate unless the manufacturer specifies. Refrigerated bottles need to come to room temperature before use, which slows down clinical workflow.

**Total-etch components.** The etch gel is stable at room temperature. The primer and bond should be stored upright in their original dispenser to prevent light degradation.

**Light-cure flowable composites** (which are not adhesives but live nearby). Room temperature, in original syringe holders.

**Hypochlorite irrigants and chlorhexidine** (used in endo bonding). Room temperature, away from light.

Build storage location into your inventory system. When a new bottle is received, the system should suggest the correct storage location based on product type.

Common Waste Patterns to Eliminate

Five waste patterns account for most adhesive product loss in dental practices.

Pattern 1: Over-Buying Universal Adhesives

Universal adhesives have long unopened shelf lives, which makes them tempting to stockpile. A practice might buy six bottles when three would do. Three of those bottles sit unopened until they expire 18 months later.

Fix: set a strict ceiling on adhesive stock. For most general practices, two bottles of each adhesive type is enough. One in use, one in reserve.

Pattern 2: Multiple Half-Opened Bottles

A new bottle gets opened because nobody can find the existing half-used one. Now there are two half-empty bottles. The cycle repeats and you end up with four bottles of the same product, all open, all degrading.

Fix: assign a single storage location for each opened bottle. When a new bottle is opened, the old one moves to a use-first tray that all clinicians check before opening anything new.

Pattern 3: Inconsistent Application

Different dentists use different adhesives for similar procedures. The practice ends up stocking three universal adhesives because each dentist prefers a different brand.

Fix: standardise where possible. Discuss as a team which adhesives the practice will stock. Limit to the smallest viable set.

Pattern 4: Sample Bottles That Linger

Dental reps leave samples. The samples sit on a shelf for a year before being opened, by which time they are at or past expiry.

Fix: log every sample into the inventory system on the day it arrives. Either use it within 30 days or discard it.

Pattern 5: Failed Procedures and Re-Bonding

Bonding failures sometimes lead to extra material usage during repair. If your practice tracks the original procedure and the rework, you can spot patterns that point to a particular adhesive or a particular operator.

Setting Up Adhesive Tracking in Asseto

A practical setup for adhesive inventory inside a system like Asseto:

After 30 days of usage data, review the consumption rate per product and adjust par levels. Some adhesives will turn out to be used far less than expected. Consider dropping them from the catalogue.

Take Control of Adhesive Costs

Dental adhesives are not just consumables. They are a significant line item in your supply budget, and they are uniquely prone to waste because of their short opened shelf life and light sensitivity. Practices that track them properly save thousands of euros per year and improve clinical consistency at the same time.

Start with categorisation. Track opening dates. Apply the 30-day rule. Limit your catalogue to the adhesives you actually use. And replace gut-feel ordering with consumption-driven par levels.

Asseto handles all of this. Try the free plan, set up your adhesive catalogue, and see what your real consumption looks like for the first time.