Best Dental Cavity Liners 2026: Top 9 Brands Compared

Protecting the pulp and ensuring the long-term success of a restoration requires the right materials. Every time you prep a deep cavity, the choice of the underlying material directly impacts post-operative sensitivity, secondary caries prevention, and overall patient satisfaction.

For practice owners and procurement managers, selecting these materials also involves careful inventory management. You need clinical reliability, excellent handling properties, and a cost structure that keeps your overhead manageable.

In this comprehensive guide, we will compare the top dental cavity liners available in 2026 to help you make informed purchasing decisions for your dental clinic.

Calcium hydroxide liners

Calcium hydroxide cavity liners release calcium and hydroxyl ions, raise the local pH and stimulate reparative dentin. They are inexpensive and familiar, but they dissolve over time if the restoration above them leaks, so they go on in a thin layer and are always covered.

Dycal by Dentsply Sirona (Best Self-Cure Calcium Hydroxide)

Dycal is a two-paste, self-cure calcium hydroxide liner indicated for direct pulp capping of exposed vital pulp and for indirect pulp capping over deep dentin. Equal volumes of base and catalyst are mixed in under 10 seconds and set in about 2 to 3 minutes on the pad, faster in the mouth. Dentsply Sirona specifies a layer of about 0.8 to 1 mm on dentin, kept off enamel and margins and covered with an adhesive, varnish or restorative material. It is radiopaque. Best for: small exposures and indirect pulp capping, practices that want a low-cost self-cure liner with a long clinical record.

Calcimol LC by VOCO (Best Light-Cure Calcium Hydroxide)

Calcimol LC is a one-component, light-cured calcium hydroxide liner in a non-dripping syringe. VOCO indicates it for indirect pulp capping and as a liner under all restorative materials, with a pH of 9.5 to 11 and a 20-second cure per layer; layers thicker than 1 mm are built up in increments. It is radiopaque. It is not indicated for direct pulp capping: for exposed pulp or dentin within 0.5 mm of the pulp, VOCO directs to an aqueous calcium hydroxide. Best for: indirect pulp capping under composite, practices that want calcium hydroxide with command set and no mixing.

Calcium silicate liners and pulp capping materials

Calcium silicate dental liners release calcium ions, promote hydroxyapatite formation at the interface and are far less soluble than calcium hydroxide. In a network meta-regression of 19 randomized clinical trials with 1,733 patients, Biodentine and MTA showed higher clinical success than calcium hydroxide in direct pulp capping of mature permanent teeth, with low certainty of evidence. TheraCal LC and Biodentine represent the two formats in this class: a light-cured resin-modified liner and a resin-free dentin substitute.

TheraCal LC by Bisco (Best Light-Cure Calcium Silicate)

TheraCal LC is a light-cured, resin-modified calcium silicate indicated for direct and indirect pulp capping and as a protective liner under composite, amalgam and cements. It goes on moist dentin in layers under 1 mm, cures in 20 seconds and needs no bonding agent underneath. It releases calcium, creates an alkaline environment and is radiopaque, and Bisco describes it as virtually insoluble, an advantage over calcium hydroxide under a bonded composite. Pulpotomy is not among its listed indications. Best for: indirect pulp capping under bonded composites, small exposures when a command-set material is preferred, practices moving away from calcium hydroxide.

Biodentine by Septodont (Best for Direct Pulp Capping and Deep Dentin)

Biodentine is a resin-free tricalcium silicate dentin substitute, mixed from a capsule and a calcium chloride liquid. Septodont indicates it for direct and indirect pulp capping, pulpotomy, deep carious lesions and permanent dentin replacement under composite, inlays and onlays, as well as root perforations, resorption and apexification. Initial set takes about 12 minutes, and Septodont recommends waiting 12 to 15 minutes before placing the final restoration. It contains no bismuth oxide, which lowers the risk of tooth discoloration. Best for: direct pulp capping and pulpotomy, deep cavities where the material replaces dentin in bulk, endodontic repairs.

Glass ionomer and resin-modified glass ionomer liners

Glass ionomer cavity liners bond chemically to dentin, release fluoride and seal the dentinal tubules, which makes them the standard liner or base under composite in deep preparations without exposure.

Vitrebond Plus by 3M/Solventum (Best RMGI)

Vitrebond Plus is a light-cure resin-modified glass ionomer liner and base, dispensed as paste and liquid from the Clicker dispenser so no measuring is needed. It bonds to dentin, seals against microleakage to help prevent postoperative sensitivity and releases fluoride, with a 20-second light cure. It is not indicated for direct pulp capping. Best for: liners and bases under composite and amalgam, deep Class II boxes, practices that want fluoride release with a fast light cure.

Ionoseal by VOCO (Best One-Component Glass Ionomer Liner)

Ionoseal is a one-component, light-curing glass ionomer composite liner supplied ready to use in a syringe, with no mixing. VOCO indicates it as a liner under all filling materials, for extended fissure sealing and for small lesions. It releases fluoride, is radiopaque and sets in seconds under the curing light. Best for: fast lining under composite and amalgam, single-syringe workflows, practices that also need a material for extended fissure sealing.

Fuji LINING LC by GC America (Best for Ease of Use)

Fuji LINING LC is a light-cured glass ionomer liner supplied in a paste-paste Paste Pak cartridge that dispenses accurately and mixes without bubbles. GC indicates it as a base or liner under composite and amalgam. It adapts to cavity walls without slumping, bonds to tooth structure and composite, is insensitive to humidity, has low water solubility and is radiopaque, with long-term fluoride release. Best for: lining under composite and amalgam, practices already using GC Paste Pak cements, operators who prefer a paste-paste glass ionomer.

Light-cure resin and bioactive liners

Resin-based cavity liners combine a command set with ion-releasing fillers. They tolerate moisture, do not dissolve under the restoration and handle like a flowable composite, but neither product below is indicated directly on exposed pulp.

Lime-Lite Enhanced by Pulpdent (Best Standard Light-Cure)

Lime-Lite Enhanced is a light-cure liner and base made of a mineral-enriched urethane dimethacrylate resin that releases calcium, phosphate and fluoride. It is moisture tolerant, virtually insoluble in oral fluids and free of BPA, Bis-GMA and BHT. Each 1 to 1.5 mm layer cures in 20 seconds. Pulpdent does not indicate it for direct placement on exposed pulp. Best for: indirect pulp capping and lining under composite, practices that want a single light-cure syringe liner, BPA-free material policies.

ACTIVA BioACTIVE Base/Liner by Pulpdent (Best Dual-Cure Base/Liner)

ACTIVA BioACTIVE Base/Liner is a dual-cure base and liner with an ionic resin matrix and reactive glass fillers that release and recharge calcium, phosphate and fluoride. It light-cures in 20 seconds and self-cures within 5 minutes, so the deepest layer sets where the curing light does not reach. It comes in automix syringes with bendable metal tips, contains no Bisphenol A or Bis-GMA, and is not indicated on exposed pulp. Best for: bases in deep Class I and II preparations under composite, areas with limited light access, practices already using ACTIVA restoratives.

Understanding Dental Cavity Liners in Modern Restorative Dentistry

Dental cavity liners seal dentinal tubules, protect the pulp from the acids and monomers in etchants and adhesives, and in many cases release fluoride or calcium. With current adhesive protocols, a liner is no longer routine under every composite. A Cochrane review of 8 trials with over 700 participants found inconsistent, low-quality evidence on postoperative hypersensitivity with or without a liner under Class I and II composites, and no difference in restoration longevity. The decision depends on remaining dentin thickness and on the status of the pulp.

When to use a liner vs. a base

A liner is applied in a thin layer and works biologically: calcium hydroxide and calcium silicate liners stimulate reparative dentin, and glass ionomer liners seal and release fluoride. A base is thicker and works mechanically: it replaces lost dentin, insulates the pulp and supports the restoration above it.

Several cavity liners in this guide do both jobs depending on thickness. Vitrebond Plus, Fuji LINING LC, Lime-Lite Enhanced and ACTIVA Base/Liner work as liner or base, and Biodentine replaces dentin in bulk. Dycal is a liner only: Dentsply Sirona states there are insufficient data to support its use as a base.

How to Choose the Right Cavity Liner for Each Indication

Direct pulp capping

On a small exposure in a vital tooth, with bleeding under control, a resin-free calcium silicate such as Biodentine has the strongest evidence. Dycal is still indicated and costs less, but calcium hydroxide ranked lowest in the meta-regression cited above. TheraCal LC is indicated for direct pulp capping with the convenience of a light cure.

Indirect pulp capping in deep cavities

When caries removal leaves a thin layer of dentin over the pulp without exposure, TheraCal LC, Calcimol LC, Dycal and Lime-Lite Enhanced are all indicated. A glass ionomer liner such as Vitrebond Plus can then seal the area and support the restoration. Most practices cover this indication with one calcium-based product and one of the cavity liners and bases from the glass ionomer group.

Under composite restorations

In moderate cavities with adequate remaining dentin, the evidence does not support a routine dental liner under a bonded composite. In deep Class I and II preparations, an RMGI such as Vitrebond Plus or Fuji LINING LC, or a dual-cure base such as ACTIVA Base/Liner, replaces dentin, seals the tubules and reduces the volume of composite placed.

Under amalgam and indirect restorations

Amalgam does not bond to the tooth, so a glass ionomer liner adds a seal under it. Under inlays and onlays, Biodentine is indicated as permanent dentin replacement, and a glass ionomer base blocks out undercuts before the impression.

Dental Cavity Liners and Alara: Get the Best Deals from Trusted Suppliers

Dental cavity liners cost little per procedure, but the same syringe or capsule kit is priced differently from one vendor to the next. Alara Dental Marketplace compares real-time offers on every dental cavity liner in this guide, from Dycal and TheraCal LC to Biodentine and Vitrebond Plus, across 15+ verified vendors..

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Dental Cavity Liners: Frequently Asked Questions

What is Dycal used for in dentistry?

Dycal is a self-cure calcium hydroxide cavity liner used for direct pulp capping of exposed vital pulp and for indirect pulp capping over deep dentin. It goes on in a thin layer under the restoration, and Dentsply Sirona does not support its use as a base, filling or luting material.

TheraCal LC vs Dycal: which one should you use?

Both are indicated for direct and indirect pulp capping. Dycal is a self-cure calcium hydroxide that dissolves over time if the seal above it fails. TheraCal LC is a light-cured, resin-modified calcium silicate that sets on command and is virtually insoluble, which makes it the more practical choice under bonded composites. Dycal costs less and has the longer clinical record. For a resin-free alternative to Dycal, Biodentine is the reference.

Vitrebond vs Dycal: what is the difference?

They do different jobs. Dycal is a calcium hydroxide pulp capping liner. Vitrebond Plus is an RMGI liner and base that seals dentin and releases fluoride, and it is not indicated for direct pulp capping. In a deep cavity, a thin layer of calcium hydroxide over the deepest point followed by Vitrebond Plus is a common sequence.

Ionoseal vs Vitrebond Plus

Both are light-cured, glass ionomer-based cavity liners that release fluoride. Ionoseal is a single-component syringe with no mixing, while Vitrebond Plus is paste and liquid dispensed by the Clicker. Ionoseal is also indicated for extended fissure sealing and small lesions.

Lime-Lite vs Dycal

Lime-Lite Enhanced is a light-cure resin cavity liner that releases calcium, phosphate and fluoride and is not indicated on exposed pulp. Dycal is a self-cure calcium hydroxide indicated for direct pulp capping. Lime-Lite suits indirect pulp capping and lining under composite, while Dycal suits small exposures.

Top 9 Dental Cavity Liners: The 2026 Buying Guide for Dental Practices