How Do Braces Work? A Step-by-Step Guide
More Than Just Metal on Teeth
Most people know what braces look like — but very few understand what is actually happening inside the mouth during orthodontic treatment. How does a wire and a few brackets gradually shift teeth through solid bone? Why does it take months rather than weeks? And what is happening at each appointment that slowly builds toward a straighter smile?
At Dr Gray Dentistry in Durban, Dr Gray believes that patients who understand their treatment get better results — because when you know why each step matters, you take better care of your braces, attend appointments consistently, and have realistic expectations about the pace of progress.
This post walks through exactly how braces work — from the biology of tooth movement to what happens at each stage of treatment.
The Biology of Moving Teeth
Before understanding how braces work mechanically, it helps to understand something remarkable about teeth — they are not rigidly fixed in the jaw. Each tooth is suspended in its socket by a network of fibres called the periodontal ligament — a thin, flexible cushion of connective tissue that sits between the root of the tooth and the surrounding bone.
This ligament is what makes orthodontic tooth movement possible. When a controlled, sustained force is applied to a tooth — as braces do — the periodontal ligament is compressed on one side and stretched on the other. The body responds to this pressure by remodelling the bone around the tooth — dissolving bone on the side the tooth is moving toward, and depositing new bone on the side it is moving away from.
This process — called bone remodelling — is what allows teeth to move through what would otherwise be solid, immovable bone. It is a slow biological process, which is why orthodontic treatment takes months rather than days. The forces used must be light and controlled — too much force does not speed up movement and can actually damage the root and surrounding tissues.
The Components of a Fixed Brace
Understanding how braces work requires knowing what each component does:
Brackets
Brackets are small, precisely engineered attachments bonded directly to the surface of each tooth using a dental adhesive. Each bracket has a slot running through it — the slot that holds the wire. The angle and position of this slot is specific to each tooth and each position in the arch, encoding information about the direction and degree of movement needed.
The archwire
The archwire runs through the bracket slots of all the teeth and is the primary source of the forces that move teeth. At the start of treatment, a thin, flexible wire is used — one that can follow the irregular contour of crowded or misaligned teeth without placing excessive force on them. As teeth align, progressively stiffer and more precisely shaped wires are introduced, guiding teeth toward their final positions with increasing precision.
Ligatures or self-ligating brackets
Traditional brackets use small elastic ties — ligatures — to hold the wire in the bracket slot. Self-ligating brackets use a built-in clip or door mechanism instead, which can reduce friction between the wire and bracket and sometimes allows for more efficient tooth movement.
Elastics (rubber bands)
Intermaxillary elastics — rubber bands worn between the upper and lower teeth — are used at certain stages of treatment to correct the relationship between the upper and lower jaws. They apply forces that braces alone cannot produce and are a critical component of bite correction in many cases.
Auxiliaries
Additional components — springs, hooks, or temporary anchorage devices — may be used in specific cases to achieve movements that standard bracket and wire mechanics cannot accomplish alone.
Step by Step: What Happens During Treatment
Step one — the consultation and treatment planning
Before a single bracket is placed, Dr Gray conducts a thorough assessment — examining the teeth, bite, and jaw, reviewing X-rays, and taking records including photographs and digital scans. This information forms the basis of a detailed treatment plan that maps out exactly which teeth need to move, in which direction, by how much, and in what sequence.
This planning stage is where the result is won or lost. Careful, precise treatment planning means that every bracket is placed in exactly the right position and every wire change is deliberate and purposeful.
Step two — bracket placement
At the bonding appointment, the teeth are cleaned, prepared, and each bracket is bonded to its specific tooth in its specific position. The initial archwire typically a thin, flexible nickel-titanium wire — is then placed through the bracket slots and secured. This wire has a memory property, it wants to return to a straight shape, and it begins gently applying force to misaligned teeth from the moment it is placed.
Patients typically experience mild soreness for a few days after this appointment as the teeth begin to respond to the new forces. This is entirely normal and reflects the biological process of bone remodelling beginning.
Step three — regular adjustment appointments
Every four to eight weeks, patients return to Dr Gray Dentistry for an adjustment appointment. At each visit, Dr Gray assesses the progress made since the last appointment, removes or adjusts the current wire, and replaces it with the next wire in the planned sequence — progressively stiffer and more precisely shaped as treatment advances.
These appointments are not simply maintenance visits — each wire change is a deliberate clinical decision that drives the next phase of tooth movement. Attending every appointment on schedule is essential for keeping treatment on track and within the planned timeline.
Step four — bite correction
Once the teeth within each arch are reasonably well aligned, attention shifts to how the upper and lower teeth relate to each other — the bite. This is typically when elastics are introduced, worn between specific upper and lower teeth to correct the bite relationship. Patients are asked to wear these elastics consistently — usually full time except when eating and brushing — because inconsistent wear significantly slows this phase of treatment.
Step five — finishing and detailing
In the final phase of treatment, fine adjustments are made to ensure every tooth is in precisely the right position — not just broadly aligned but properly seated in the bite, correctly torqued, and well spaced. This detailing phase requires the most precise wires and the most careful clinical attention, and it is what separates a good orthodontic result from an excellent one.
Step six — debond
When Dr Gray is satisfied that the planned result has been achieved, the brackets are carefully removed — a process called debonding. The adhesive is cleaned from the tooth surfaces, and the teeth are polished. Seeing the finished result at this appointment — without brackets for the first time — is one of the most rewarding moments of the entire treatment journey.
What Happens After Braces Come Off
Removing the braces is not the end of treatment — it is the transition to the retention phase, which is equally important.
Immediately after debonding, retainers are fitted. Retainers hold the teeth in their new positions while the bone around the roots fully consolidates and the periodontal ligament stabilises. Without retainers, teeth will drift back toward their original positions — a process called relapse — because the biological memory of where they were is still present in the tissues.
Dr Gray provides retainers at Dr Gray Dentistry as a standard part of every orthodontic case — explaining exactly how and when to wear them and what to expect during the retention phase. The commitment to retainer wear after treatment is what protects the result for life.
How Long Does the Whole Process Take?
Treatment duration depends on the complexity of the case — but most patients wearing fixed braces at Dr Gray Dentistry complete treatment within 12 to 24 months. Simpler cases of mild crowding may be completed in under a year. Complex bite corrections with significant jaw discrepancies may take longer.
The single biggest factor within a patient's control is appointment consistency. Missing or delaying adjustment appointments extends treatment time directly — each missed appointment is typically one less wire change, which means one less planned stage of tooth movement completed on schedule.
Start Your Braces Journey at Dr Gray Dentistry, Durban
Understanding how braces work makes the whole process feel less mysterious — and a lot more manageable. Every wire change, every adjustment, every stage of treatment is a deliberate step toward the planned result.
If you're considering braces for yourself or your child, Dr Gray at Dr Gray Dentistry in Durban, South Africa will walk you through exactly what treatment would involve for your specific case — with a clear plan, realistic timelines, and honest expectations from the very first consultation.
Book your orthodontic consultation at Dr Gray Dentistry in Durban today.