Gum recession is almost always bone loss — and in most cases the real cause is the force your bite places on your teeth, not how hard you brush. If you’ve done everything right and your gums are still getting worse, there’s likely a different explanation — and a real solution.
I hear some version of this almost every week.
A patient sits down, clearly frustrated, and walks me through everything they’ve been doing: switching to a soft toothbrush, buying a new one every month, going to the hygienist for extra cleanings, flossing religiously, cutting out sugar, doing everything they’ve been told to do. And still — their gums keep pulling back. Still getting worse. Still an eyesore. Still something they feel quietly ashamed of, like it’s evidence of personal failure.
Then comes the line I hear most often: “I think I just have bad teeth. My mom has the same thing. My grandmother had it too. It’s just genetic.”
And here’s what I tell them: they’re not entirely wrong. There often is a genetic component. But what’s genetic isn’t bad teeth — it’s the bite. The jaw structure. The way the forces in their mouth are distributed. And unlike genetics, a bad bite can actually be fixed.
That conversation — watching someone go from resigned to genuinely hopeful — is one of my favorite moments in dentistry.
THE EXPLANATION THAT FINALLY MAKES SENSE
Most patients with recession have been told the same thing for years: you’re brushing too hard. Brush more gently. Use a softer toothbrush.
And they try. They do everything right. And nothing changes.
That’s because brushing isn’t the problem.
Think about what would actually have to happen for brushing to cause recession. You would have to brush hard enough — consistently, over time — to physically wear away living gum tissue. Tissue that has a blood supply. Tissue that bleeds when irritated and heals when you stop. You would feel it. You would stop.
And even if you somehow managed to brush through the soft tissue, you would expose bone underneath — and no toothbrush on earth removes bone. The bone would still be there. The tissue would heal back over it.
The brushing story doesn’t explain the bone loss. And the bone loss is the actual story.
GUM TISSUE FOLLOWS BONE — ALWAYS
Here’s the mental model I use with patients: think of gum tissue like grass growing on a hill. It follows the shape and contour of whatever is underneath it. The bone is the hill. The gum is the grass.
When the bone recedes — when it thins, when it resorbs in response to pressure — the gum tissue has nothing left to cling to. It follows the bone down. What we’re calling gum recession is really the gum tissue doing exactly what it’s supposed to do: reflect the landscape of the bone beneath it.
So the question isn’t why are my gums receding. The question is why is my bone receding. And in most of the patients I see, the answer is force.
WHAT THE BITE IS DOING TO YOUR BONE
When I show patients their abfraction lesions — those distinctive notch-like defects right at the gumline on the cheek side of the tooth — something usually clicks.
I describe it this way: imagine driving a nail into wood. If you hit it perfectly straight, the force travels right down through the nail into the wood. Everything is stable. But if you hit that nail even slightly off-center, the nail bends at its narrowest point, and the wood at the base splinters outward.
That’s exactly what’s happening to these teeth. When a tooth is tilted — leaning inward toward the tongue rather than standing straight up — the forces of chewing and clenching aren’t traveling through the long axis of the tooth the way they should. They’re deflecting sideways. The tooth actually flexes slightly at its narrowest point, right at the neck. Over time that repeated flexing fatigues the tooth structure there and it breaks away — forming that characteristic notch. And the bone surrounding the base of that tooth, under constant sideways pressure, gets a signal from the body: move. Make way. And it does.
The gum tissue follows.
What makes patients feel seen in this moment isn’t just the explanation — it’s the recognition that they weren’t doing anything wrong. The recession wasn’t happening because they failed to follow instructions. It was happening because no one had looked at the right cause.
THE SIGNS I LOOK FOR
When a patient presents with recession, I’m looking at the whole picture — not just the gum line.
I look at how the teeth are positioned. Are they tilting inward? I look at the wear patterns on the biting surfaces — patients who clench and grind often show a pitted, worn pattern on their back teeth that tells me significant force is happening, often at night when they’re completely unaware of it. I look for bony growths along the jaw — the body’s attempt to reinforce itself under load — which confirm that these forces are real and significant.
I look at whether the gum tissue is actually healthy. This is often the most revealing finding. Many patients with significant recession have no bleeding, no deep pockets, no signs of gum disease at all. Their gums are perfectly healthy — just receding. When the gum health is good but the recession keeps progressing, periodontal disease isn’t the explanation. Force is.
I also look between the teeth. When bone is lost in those spaces, the gum tissue that normally fills the gap between two teeth collapses and flattens — leaving those dark triangular spaces called black triangles. They’re not just a cosmetic issue. They’re a sign that the bone between those teeth has followed the same pattern.
And I look at the X-rays carefully — both at the level of the bone and the shape of the bone loss. A flat, horizontal pattern often suggests something that has stabilized. A more angular, vertical pattern often suggests something still actively progressing. That distinction changes how urgently we act and what we do first.
WHAT ACTUALLY WORKS
The most important principle in treating recession from bite force is this: fixing the surface without fixing the force is temporary at best.
Placing a composite filling over an abraction lesion is a common approach elsewhere. But it doesn’t address why the lesion formed. The force is still there. The filling fails — often repeatedly — and the patient goes through the same frustrating cycle of repair and refailure. I avoid those restorations unless a patient is in real pain or has significant aesthetic distress, and even then, managing the underlying force is always part of the conversation.
What actually addresses the cause:
A properly fitted nighttime orthotic — not just a generic tooth guard, but an appliance designed to position the jaw in a fully relaxed, neuromuscularly supported position — reduces the clenching and grinding forces driving the bone loss. For many patients this is the single most impactful step.
For motivated patients, orthodontic treatment that corrects the tipping and positioning of the teeth addresses the root cause more completely. When teeth are properly upright and forces travel through their long axes the way they were designed to, the mechanical loading on the bone changes fundamentally.
In more advanced cases, rebuilding the bite through crowns or onlays on the back teeth can restore proper force distribution across the whole arch.
And where recession has progressed enough to warrant it, soft tissue grafting can restore gum coverage — but it lasts far longer when the force driving the recession has been dealt with first.
YOU’RE NOT STUCK WITH THIS
The thing I most want patients to leave understanding is that this isn’t a life sentence.
Recession can be stopped. Bone loss can be arrested. The fact that your mother and grandmother had the same thing doesn’t mean you’re destined to lose your teeth — it means the bite pattern runs in your family, and that bite pattern can be treated.
You’ve probably spent years doing everything asked of you and wondering why nothing was working. The answer isn’t that you were doing it wrong. It’s that you were addressing the wrong thing.
There’s a different conversation available to you. And it starts with someone actually looking at what’s causing it.
To schedule at Supremia Dentistry in Wake Forest, call 919-556-6200 or request an appointment online.
Dr. Morgan Herman, DDS, is a holistic, airway-focused dentist and TMD specialist at Supremia Dentistry in Wake Forest, NC. She is a Diplomate of the American Academy of Dental Sleep Medicine, a Fellow of the Las Vegas Institute for Advanced Dental Studies and the International Academy of Dental Facial Esthetics, and a member of the International Academy of Oral Medicine and Toxicology (IAOMT).