When to Whiten, and When to Veneer

It will not change the shape or the width of a tooth, close a gap, rebuild a worn edge or move anything. Those are form, and whitening has no effect on form. And where the real issue is alignment, moving the teeth is often a better answer than covering them, which is a different conversation again.

The one that catches people out is restorations. Crowns, veneers and composite fillings stay the shade they were made in. Whiten the teeth around them and they do not follow, so a mouth that looked even before can end up looking patchy afterwards. If there is already work across your front teeth, that can significantly influence the treatment plan.

Discolouration inside the tooth is another consideration. Some types respond to whitening, while others require a different approach. A single dark tooth, for example, needs its cause established before deciding between whitening, internal bleaching, or a restoration.

Whitening generally requires no tooth preparation, although temporary sensitivity and gum irritation can occur. If it turns out to be enough, you have spent a fraction and kept your enamel, which is reason enough to consider it first.

It can also set the target. Once your own teeth have settled at their lighter colour, ceramic can be matched to that rather than to a compromise shade you did not choose. If whitening forms part of the plan, the plan should allow time before the ceramic is bonded. Around two weeks is a common evidence-supported interval, although the exact timing depends on the whitening protocol.

When the complaint is really form and colour is standing in for it. Worn edges, teeth that look short, a smile that has narrowed with age: those read as dull, and lightening them changes nothing about why they read that way.

The useful question is not which treatment you want. It is whether your complaint is colour or form, because that answer decides the plan, and the two are easy to confuse in your own mirror.