Here’s what it is, how it differs from a standard scale-and-polish, and what the appointment actually feels like.

Guided Biofilm Therapy is a modern hygiene protocol developed by EMS, the Swiss manufacturer behind the AIRFLOW Prophylaxis Master system. It replaces the familiar metal scraping with a gentle jet of warm water and fine erythritol powder, guided carefully around every tooth, gum line and implant.

The sequence is specific: a disclosing agent stains the biofilm with a colour indicator first, so the hygienist can see exactly what needs removing. Airflow then clears the biofilm and staining without touching the tooth surface aggressively. Only harder tartar — where it exists — is removed afterwards, using a gentler PIEZON instrument.

They target the same problem — plaque, biofilm and staining — but they feel very different in the chair.

Traditional scaling uses a metal instrument or a standard ultrasonic scaler, directly on the tooth. It’s effective but it can be noisy, cold and abrasive, particularly at the gum line. GBT uses airflow and warm water, is quieter, and reaches areas (between teeth, around implants, along gum margins) that scaling often misses. For patients with sensitivity, exposed roots, or orthodontic work, the difference is noticeable.

We still use PIEZON scaling where the clinical picture needs it — GBT is not a replacement for every scenario, it’s a better starting point for most.

For most patients, no. Most describe it as a warm, slightly fizzy spray — a few have said it feels like a tooth spa. If your teeth are very sensitive, or you have exposed root surfaces, tell us before we start and we’ll adjust the powder, the pressure and the sequence accordingly. For nervous patients, we build in breaks and keep the chair upright between cycles.

Your hygiene appointment with us follows four stages:

We’re an EMS-certified GBT practice, which means the hygiene team follows the protocol consistently. You can read more on the Hygiene Visits page.

If it’s been a while since your last clean, or the last visit wasn’t a good one, a GBT appointment is a good place to start. Book online, or call the practice on 02920 229877 and we’ll find you a slot. Members on Plan 2 and Plan 4 include hygiene visits in their monthly fee — see how the plans work.