Where Composite Bonding Makes More Sense

Composite bonding uses a tooth-coloured resin that your dentist shapes directly onto the tooth. It works especially well for small chips or worn edges where the tooth still has plenty of healthy structure.

The appointment often feels quick because the material is shaped in your mouth rather than made somewhere else. There’s usually less drilling too, which I personally think is a big advantage when the damage is minor.

A Small Repair Can Stay Small

If you’ve chipped the edge of a front tooth, bonding can restore its shape without turning the repair into a bigger project. The resin is matched to your tooth and polished so it blends in.

• Great for a modest chip, especially when most of the natural tooth is still there.

• It feels quick in the chair, although the dentist still needs enough healthy enamel to make the repair secure.

When a Dental Onlay Has the Edge

An onlay steps in when a tooth has lost more structure than bonding should be expected to replace. Think of it as a fitted piece that sits over part of the tooth and reinforces the damaged area.

Because the onlay is made to fit your tooth, it offers much more support than a simple layer of resin. This makes it particularly useful for a back tooth that takes a lot of chewing force.

The Tooth Usually Decides

If a molar has a large area of damage but doesn’t need a full crown, an onlay can fill that middle ground. Your dentist removes the damaged portion and prepares the remaining tooth so the restoration can fit properly.

• More substantial support for a weakened back tooth, and that’s where the extra preparation starts to make sense.

• More planning is involved because the restoration is custom-made rather than shaped entirely during the appointment.

So Which Should You Choose?

If a back tooth has lost a bigger section and needs real reinforcement, an onlay makes more sense. Trying to force bonding into that situation simply because it’s easier isn’t a great idea.

Your dentist will need to look at the remaining tooth before deciding. And honestly, that’s the part worth taking seriously. A pretty repair isn’t much use if the tooth underneath can’t handle the pressure.