Composite

Composite resin is a light-cured restorative material made of a Bis-GMA or UDMA resin matrix loaded with silica, glass, or zirconia filler particles. The resin bonds to enamel and dentin through a dental adhesive and cures in 10 to 20 seconds under an LED curing light. Composite has replaced silver amalgam in most Indian general practices because of its tooth-matching shade range and direct adhesive bond to tooth structure. Higher filler load gives more wear resistance for posterior restorations; lower viscosity flowable forms reach pit and fissure detail.

Types of Composite

Nanohybrid composite (universal restorative)

Nanohybrid composites combine nanofiller particles with larger pre-polymerized fillers, giving them the polishability of a microfill and the strength of a hybrid. They are the most-used composite class in general practice and serve both anterior and posterior teeth. Example: 3M ESPE Filtek Z250 XT Restorative Intro Kit — radiopaque, visible-light cured universal restorative composite.

Microhybrid composite (posterior strength)

Microhybrid composites carry higher filler load (75 to 85 percent by weight) and pack firmly into posterior cavities without slumping. They handle occlusal load on molars and premolars where wear resistance matters more than mirror polish. Example: Dentsply Spectrum Composite Kit — sub-micron hybrid composite for direct restorations.

Bulk-fill composite (single-increment posterior)

Bulk-fill composites are designed to cure through 4 to 5 mm increments instead of the standard 2 mm, which cuts placement time on deep posterior cavities. They use modified initiators and translucent fillers so the curing light reaches the cavity floor. Example: Prime Dental Restorite Bulk Fill Kit (Packable) — packable bulk fill composite for posterior tooth restorations.

Flowable composite (liners, small cavities, pit and fissure)

Flowable composites have lower filler load and higher resin content, giving them a syringeable viscosity that reaches narrow cavities and pit and fissure grooves. They work as cavity liners under packable composite, for small Class V restorations, and for sealing fissures. Example: Waldent Alchem NanoFlow Zirconium Flowable Composite Kit — nano-hybrid flowable composite with zirconium fillers.

Aesthetic anterior composite (shade-rich)

Aesthetic anterior composites carry multiple dentin and enamel shades plus translucency variants to layer natural-looking restorations on incisors and canines. They give the chameleon effect that masks the restoration margin under light. Example: GC Solare X Composite 5gm — anterior and posterior universal composite with chameleon effect for aesthetic invisibility.

When is composite used?

Composite is used wherever a tooth-coloured, adhesively bonded repair is needed on enamel or dentin. The material covers a small occlusal pit on a child's molar to a full anterior veneer on a discoloured incisor. Composite has the widest indication range of any direct restorative material in modern dentistry.

• Class I to V cavity restorations on anterior and posterior teeth
• Aesthetic veneers and chip repair on incisors and canines
• Diastema closure and minor tooth reshaping without preparation
• Composite buildups for endodontically treated teeth before crown
• Pit and fissure sealants on caries-prone occlusal grooves
• Bonded splints for periodontally mobile or trauma-displaced teeth

How to choose the right composite

1. Filler type and load. Microhybrid and nanohybrid composites (70 to 85 percent filler by weight) handle posterior load. Microfilled composites polish better but wear faster. Match filler class to cavity location, not shade alone.
2. Anterior vs posterior indication. Aesthetic composites with multiple dentin and enamel shades (GC Solare X, Tokuyama Estelite Sigma Quick, Ivoclar Tetric N-Ceram) win on incisors. Microhybrids (Dentsply Spectrum, 3M ESPE P-60, Kuraray Clearfil AP-X) win on molars under occlusal load.
3. Bulk-fill vs incremental. Bulk-fill composites cure through 4 to 5 mm in one step and cut chair time on deep Class I and II cavities. Standard composites need 2 mm increments and stack better in shallow restorations.
4. Flowable vs packable. Flowable composites (Prime Dental Restorite Flow, Waldent Alchem NanoFlow) reach narrow pits and serve as cavity liners. Packable composites (3M ESPE P-60, Kuraray Clearfil AP-X) hold their shape on the matrix band and need a packing instrument.
5. Shade range and chameleon effect. Anterior cases need 4 to 8 shades plus translucency tabs to match the patient's tooth. Universal posterior cases work with 3 to 4 shades. Chameleon-effect composites like GC Solare X reduce shade-matching errors.
6. Pack format (kit vs syringe refill). Intro kits (4 to 6 shades plus bonding system) suit new practices and dental students. Syringe refills are cheaper per gram for clinics with an established shade preference. Pre-loaded tip (PLT) refills cut cross-contamination but cost more per restoration.

Composite brands available on Dentalkart

Dentalkart stocks composite resin from 3M ESPE, Ivoclar Vivadent, GC, Tokuyama, Dentsply, Voco, Shofu, Kulzer, Kuraray, Prevest Denpro, Prime Dental, and SDI. 3M ESPE, Ivoclar Vivadent, GC, Tokuyama, and Dentsply lead the imported tier for high-end aesthetic and posterior restorations. Voco, Shofu, Kulzer, and Kuraray cover specialty niches like bioactive composites, smart composites, and high-strength microhybrids. Prevest Denpro, Prime Dental, and SDI anchor the mid-tier price band that Indian general practices buy in volume for everyday Class I to V restorations.

Why buy composite from Dentalkart

Dentalkart sources every composite kit and syringe refill from the manufacturer or the brand's authorised distributor in India. Each item ships with batch number, manufacturing date, and expiry verified before dispatch; the 10-day replacement window covers transit damage and manufacturing defects. Orders reach 110000+ pincodes across India, with cash on delivery on most listings and EMI through partner banks for kit purchases over ₹5,000. Bonding agents, etchants, polishing kits, and finishing burs are stocked alongside for a complete restorative workflow.

How does light-cure composite actually set?

Light-cure composite sets through free-radical polymerization triggered by camphorquinone, the photoinitiator inside the resin. When 430 to 480 nm blue light from an LED curing unit hits the surface, camphorquinone breaks down. This links the Bis-GMA and UDMA monomers into a rigid polymer network. Cure time is 10 to 20 seconds per 2 mm increment for standard composite.

What's the difference between microhybrid, nanohybrid, and bulk-fill composite?

Microhybrid, nanohybrid, and bulk-fill composites differ in filler particle size and cure depth. Microhybrid uses 0.6 to 1 micron filler particles for posterior strength but slightly rougher polish. Nanohybrid mixes nano-sized fillers with hybrid particles for both polish and strength. Bulk-fill uses translucent fillers and modified initiators so the curing light reaches 4 mm deep in one pass.

Which composite is best for posterior restorations in Indian general practice?

For posterior restorations in Indian general practice, Prime Dental Restorite and 3M ESPE Filtek Z250 XT cover most Class I and II cases. Prime Dental Restorite kits run ₹1,500 to ₹3,000 and suit volume practices. Filtek Z250 XT at ₹4,500 to ₹7,000 holds polish and wear resistance longer. For deep cavities, use a bulk-fill option like Prime Dental Restorite Bulk Fill.

How long does a composite restoration last in the mouth?

A well-placed composite restoration lasts 7 to 10 years in posterior teeth. Anterior chip repairs run 5 to 7 years on average. Failure starts at the margin, where saliva contamination or worn finish lets bacteria back in. Microhybrid and nanohybrid composites outlast microfilled composites under occlusal load. Patient bruxism cuts service life by 30 to 50 percent.

Is composite on Dentalkart genuine and what is the shelf life?

Yes, every composite on Dentalkart ships from the manufacturer or the brand's authorised Indian distributor. Each syringe carries batch, manufacturing date, and expiry on the label. Sealed composite has a 24 to 36 month shelf life from manufacture. Once opened, store at 4 to 25 °C, away from direct light. Light exposure activates the photoinitiator early and ruins set quality.