Going to the Gym and Sitting in the Café

Author: Gum Specialist Dr Reena

Sit with this number for a moment: 80% of periodontal outcomes are determined not by what happens in your clinic, but by what the patient does at home. Not your instrumentation. Not your staging. Not your flap design. The patient. Alone. In their bathroom. At 10pm. With a brush they’ve had since Christmas!

So why are we still losing the battle? The problem isn’t laziness. It’s literacy. “I brush twice a day” is delivered with the quiet confidence of someone who has fully met the brief. And in their mind, they have. What they haven’t grasped is that brushing covers roughly 60% of tooth surfaces. The other 40% - the interproximal contacts, the places where the disease actually lives - go completely untouched. It’s the equivalent of washing only the front of your body and declaring yourself clean. Thorough. Efficient. Completely missing the point.

Then there’s the water flosser - the device patients brandish like a trophy, as if ownership alone confers cleanliness. Water flossers are adjuncts. Not replacements. If you had a greasy pan that needed washing, rinsing it under the tap shifts the loose bits. But the residue stuck to the surface? That needs a scrub. That’s the interdental brush. The irrigator can supplement; it cannot substitute. Make this distinction explicitly and repeatedly, because patients hear “use it alongside” and quietly drop the brushes within a fortnight.

Toothpaste, similarly, is not one-size-fits-all. Think skincare. You wouldn’t recommend the same moisturiser to someone with dry, reactive skin and someone with none of those concerns - you’d match the product to the problem. Sensitive teeth need targeted formulations. Active perio patients need specialist pastes. The patient using whatever was on offer at the supermarket is not getting the same result as one using the right tool for their specific biology. Personalisation here isn’t an upgrade. It’s the baseline.

And here’s the harder truth underneath all of this: information alone changes nothing. Knowing you should use interdental brushes and actually building the habit are separated by a significant gap - and that gap is behavioural, not educational. This is where motivational interviewing and commitment questions earn their keep. Ask the patient to rate their confidence in changing one thing on a scale of one to ten. Below six, find out what’s in the way before prescribing anything. Set one specific, achievable target. Follow it up. And make sure the whole team is speaking the same language - if the hygienist signals urgent and the dentist signals routine, the patient hears optional.

Compliance is the same problem everywhere. The personal trainer who designs a perfect programme for a client who never completes it. The therapist whose insights land clearly in the session and dissolve by Tuesday. The manager whose feedback is heard, noted, and never acted upon. Knowing what to do and doing it are not the same thing - and the gap between them isn’t willpower, it’s structure. Specificity. Accountability. A system the person can actually follow. The patients who transform their oral hygiene most reliably are rarely the most motivated ones. They’re the ones who were given the clearest instruction, the most concrete goal, and someone who checked in. Build the system. The behaviour follows.