Teeth Aligners: How Do They Actually Move Your Teeth?

Teeth aligners or clear aligners are growing in popularity as a teeth straightening option. They are everywhere these days. But here’s something most people are confused about – how do these thin, plastic trays actually move teeth? Let’s find out what really happens when someone wears teeth aligners.

What Are Teeth Aligners?

Teeth aligners are clear, removable plastic trays that fit snugly over your teeth. They are custom-made after taking scans of the teeth. Unlike traditional braces with their metal brackets and wires, aligners are virtually discreet. Most people use them for anywhere between six months to over a year, depending on how much movement their teeth need.

The interesting bit is that you don’t just get one aligner and call it a day. People typically receive a whole series of them. Each aligner is slightly different from the last one, and that’s where the magic happens, moving your teeth towards its desired position.

The Science Behind Moving Teeth

You may feel that your teeth are fixed in your jawbone, but this is not the reality. Teeth are held in the jawbone with the help of the periodontal ligament. This ligament is surprisingly adaptable, which is lucky for anyone wanting to straighten their teeth.

When teeth aligners apply gentle, constant pressure to your teeth, your body responds in quite a remarkable way. The pressure triggers a biological process called bone remodeling.

On one side, where the pressure is applied, the bone breaks down, letting the teeth move towards their desired location. On the opposite side, new bone begins to form so that there is no void left from the movement of teeth. This process of breaking down old bone and building new bone is what allows the teeth to shift their location in the mouth.

It’s worth mentioning that this doesn’t happen overnight. The bone remodeling process takes time, which is why treatment with teeth aligners typically spans several months or even years. Rushing it could damage the roots of your teeth or the surrounding bone, which nobody wants.

How Do Aligners Apply Pressure?

Here’s something you might not have considered: each aligner in the series is designed to be slightly different from the current position of your teeth. When you pop in a new aligner, it doesn’t fit perfectly at first – it’s actually shaped like where your teeth should be in about a week or two. This little mismatch between your teeth’s current position and the future position is what creates controlled pressure, which gently moves teeth towards their target position.

The Role of Attachments

For certain types of tooth movements, aligners alone aren’t quite enough to achieve the desired movement. This is where small attachments come in. These are tiny, tooth-coloured bumps that dentists bond onto certain teeth. They give the aligners something to grip onto, which helps with more complex movements like rotating stubborn teeth or moving them vertically.

These attachments work a bit like handles, really. They allow the aligner to apply force more precisely to specific teeth. Without them, some movements would be rather difficult to achieve with just a smooth aligner surface.

Why the Process Takes So Long

You might wonder why straightening teeth can’t happen faster. After all, if pressure makes teeth move, wouldn’t more pressure mean quicker results? Not really, the process of bone resorption and formation needs to happen safely in a certain period of time; if it happened way too fast, it could lead to loose teeth or other complications. So while it might be frustrating to wait months for results, the slow and steady approach is actually protecting your dental health.

Wearing Time Matters

Here’s something that trips people up: teeth aligners only work when they are actually in your mouth. Most orthodontists recommend wearing them for at least twenty to twenty-two hours per day. Without consistent pressure, the teeth can move back to their original position. If you don’t wear it as per the prescribed duration, the treatment will fail to progress as per the initial plan. Some people find that if they leave their aligners out for too long, the next set in the series becomes uncomfortable or doesn’t fit properly because their teeth have shifted back slightly.

The Retention Phase

The journey does not end even after the teeth have reached their ideal position. This is because the bones and ligaments that surround the teeth will need some time to settle at their new place. This explains the need to have a retainer after completing a teeth aligner journey. Otherwise, there is a decent possibility that teeth may end up reverting to their original position.

Final Thoughts

There is gentle and constant pressure that initiates the body’s process of reshaping the bone.  Although the process needs some time and dedication from the patient, learning about the process may make the experience less mysterious.