Real Talk from the Dentist: Why You Struggle with How to Floss with Braces

Every single day, I look into the mouths of my orthodontic patients and I see the same thing: puffy, red gums. When I ask them about their home care, they sigh and say, "Doc, it takes forever." I get it. Learning how to floss with braces is probably the most annoying part of your entire treatment. It’s tedious, it requires dexterity, and let’s be honest—most people barely floss without braces. But as your dentist at Pure Health, I have to be the one to tell you that skipping this step is why your gums are bleeding. Let’s break down what I see in the chair, why it’s happening, and how we can make this realistic for your daily life.

Patients often come in for emergency visits complaining that a specific tooth hurts. They are convinced they have a cavity or a dying nerve.

When I examine them, the tooth is fine. The pain is coming from the gum tissue between the teeth. This is a classic sign that the patient hasn't mastered how to floss with braces. The gum tissue (papilla) is so inflamed from trapped food and bacteria that it throbs. This is a "false toothache." The pressure from the inflammation mimics a tooth problem. I usually take a piece of floss, clean that spot thoroughly (which bleeds a lot), and rinse it out. The pain usually subsides within 24 hours. This is the body's way of screaming for better hygiene. If you know how to floss with braces correctly, you prevent these phantom pains.

I can tell instantly if a patient is actually threading the floss or just popping it between the teeth and guessing.

If you are just jamming floss down until it hits the wire and then stopping, you aren't cleaning anything. The bacteria live under the gumline. To truly understand how to floss with braces, you have to understand that the floss must go under the wire first, and then down into the gum. I often see a line of clean enamel on the top half of the tooth (where the brush hits) and a thick layer of white plaque along the gumline and between the teeth. This demarcation line tells me you are brushing hard but ignoring the interproximal spaces.

I don't expect you to thread a limp piece of string through metal wires with your bare hands. That’s impossible.

In the chair, I demonstrate two things. First, the floss threader—it looks like a blue plastic needle. You tie the floss to it, and it pulls the floss through the wire like sewing. It works, but it’s slow. Second, and my favorite for teenagers, is the "Platypus" flosser or similar orthodontic floss picks. These have one flat side that slides under the wire so you don't have to thread anything. When I show a teenager how to floss with braces using a tool that doesn't require threading, their compliance goes up 50% immediately. It turns a 20-minute chore into a 3-minute routine.

This is the biggest misconception I fight. Patients tell me, "I stopped flossing there because it was bleeding."

If your gums bleed when you are learning how to floss with braces, it means you have an active infection (gingivitis). The bleeding is caused by the ulceration of the pocket lining. The only way to stop the bleeding is to clean it more, not less. I tell my patients: "If your hand was dirty and bleeding, you wouldn't stop washing it." You have to floss through the bleeding. Usually, after 7 to 10 days of correct daily flossing, the bleeding will stop completely as the tissue heals.

I know it’s a hassle. I know you are tired at night. But knowing flossing with braces effectively is the difference between getting your braces off and revealing a beautiful smile, or getting them off and revealing scarred, puffy gums and white squares on your teeth. It is worth the extra 5 minutes.