Freehand or Injection-Moulded Composite Bonding: What’s the Difference?

Composite bonding can be completed freehand from £200 per tooth or using a carefully planned injection-moulding technique from £350 per tooth. Freehand bonding is often ideal for smaller changes, while injection moulding uses diagnostic models and a custom-made stent to create a more predictable result across several teeth. We will assess your smile and recommend the technique best suited to your needs, goals and budget.

Freehand or Injection-Moulded Composite Bonding: What’s the Difference?

Composite bonding is a minimally invasive cosmetic dental treatment that can improve the shape, size, colour and overall appearance of your teeth. Tooth-coloured composite material is bonded directly to the teeth, often with little or no removal of healthy tooth tissue.

There are two main ways we provide composite bonding: freehand bonding and template-guided injection moulding. Both can create excellent results, but the planning process, technique and cost are different.

Option 1: Freehand composite bonding — from £200 per tooth

With freehand bonding, the dentist applies the composite material directly to each tooth and carefully sculpts it by hand. The shape, surface texture and small details are created during the appointment before the composite is polished to achieve a natural finish.

It is a little like creating a sculpture directly on the tooth. The final result depends heavily on the dentist’s clinical skill, experience and artistic judgement.

Freehand bonding can be an excellent choice when:

Only a few teeth require treatment.
The changes are relatively straightforward.
We are repairing small chips or worn edges.
We are closing minor gaps.
The teeth already have a good general shape and alignment.
The patient wants a more affordable treatment option.

At £200 per tooth, this is the simpler of our two approaches because it does not normally require a separate diagnostic design, laboratory models or a custom-made injection stent.

Option 2: Template-guided injection moulding — from £350 per tooth

Injection-moulded composite bonding involves additional planning before we treat the teeth. We first take a digital scan or impressions and use these to produce diagnostic models—a preview of the shape, proportions and position we want the finished teeth to have.

From this design, a transparent silicone stent is created. The stent acts as a precise mould that transfers the planned smile design into the mouth. Composite material is injected through the stent and around each tooth, recreating the shapes designed during the planning stage.

This approach can be particularly helpful when:

Several teeth are being treated together.
We want to create a more symmetrical smile.
The teeth require significant changes in shape or proportion.
Tooth wear has affected multiple teeth.
The bite needs to be considered as part of the design.
The patient would benefit from seeing and approving the proposed result beforehand.

The fee is £350 per tooth because it includes much more than the bonding appointment itself. It covers the additional digital or laboratory planning, diagnostic models, smile design and production of the custom stent, as well as the clinical treatment.

Is injection moulding better than freehand bonding?

Not necessarily—it is simply a different way of working.

Freehand bonding gives the dentist greater freedom to build, layer and characterise each tooth individually during the appointment. It can produce extremely natural results and is often ideal for smaller or less complicated improvements.

Injection moulding offers greater control over the overall design before treatment begins. It can make the result more predictable when several teeth need to work together, particularly when symmetry, tooth proportions or the patient’s bite are important.

However, the template does not perform the treatment by itself. Careful tooth preparation, bonding, finishing and polishing are still essential, and the result continues to depend on the skill and judgement of the treating dentist.

Why is there a £150-per-tooth difference?

The difference reflects the extra design and preparation involved:

Freehand bonding — £200 per toothInjection moulding — £350 per toothComposite shaped directly on the toothSmile designed before treatmentUsually no laboratory-made model requiredDiagnostic models or digital wax-up includedNo injection stent requiredCustom transparent stent producedIdeal for many simple or localised changesUseful for larger, more complex smile designsLower planning and production costsAdditional planning, laboratory and material costs

The additional fee is therefore not simply for a different type of composite. It reflects the time, technology and customised planning required to design the result before transferring it accurately to the teeth.

Which option is right for me?

The best approach depends on your existing teeth, the number of teeth being treated, the changes you would like to make and how complex the case is.

For a small chip, minor gap or subtle improvement, freehand bonding may be all that is required. When transforming several teeth or carefully rebuilding a smile, diagnostic planning and injection moulding may provide a more predictable approach.

We will assess your smile, explain the advantages and limitations of both techniques and recommend the option that is most appropriate for you. Whichever method is selected, our aim is the same: to create a natural-looking smile while preserving as much healthy tooth tissue as possible.