WHY ARE MY TEETH SHIFTING? HOW TO STOP TEETH FROM MOVING OVER TIME
- Dr. Barry Yu
- 3 days ago
- 3 min read
Updated: 2 days ago
You might not notice it at first, but your teeth are always moving. Even after orthodontic treatment or years of having a straight smile, subtle changes can happen over time.
Many patients tell us, “My teeth weren’t like this before, why are my teeth shifting?”
Do you ever wonder why your teeth are shifting, and what you can do about it? Let’s find out.
Why Are My Teeth Shifting?
Teeth aren’t fixed in the jawbone like concrete. They’re supported by a soft, flexible structure called the periodontal ligament, which allows small amounts of movement every day.
Here are some of the most common reasons your teeth might shift:
1. Everyday Bite Forces
Each time you chew, swallow, or even speak, gentle pressure is applied to your teeth. Over years, those tiny movements can gradually change tooth position, especially in the lower front area.
2. Gum and Bone Changes
As we age, the gum and bone structures that support your teeth can change. When these tissues recede or weaken, especially if inflammation is present, the teeth can start to move out of position more easily.
3. Grinding or Clenching (Bruxism)
Grinding puts continuous pressure on the teeth and jaw. Over time, that force can push teeth out of alignment, cause wear, or even make them feel slightly loose.
Persistent grinding (bruxism) can cause wear or tooth movement. Learn more about nightguards↗ and how they help protect your teeth.
4. Tooth Loss or Uneven Contact
When a tooth is missing or a filling or crown changes your bite, neighboring teeth may start to move into the space or adjust position to find balance.
Why Your Smile May Look Different
Even small shifts can affect how your smile looks. You might notice:
Subtle overlapping or spacing between front teeth
One side of your bite feeling higher or uneven
Tiny gaps that weren’t there before
Edges that no longer line up symmetrically
These changes usually happen slowly, but once you notice them, they can become hard to ignore.
How to Stop Teeth From Shifting
The good news is that movement can often be managed or even prevented with consistent care and monitoring.
1. Keep Your Gums Healthy
Healthy gums are the foundation of stable teeth. Brush and floss daily, and have professional cleanings every six months. Inflamed gums can trigger bone remodeling, the same biological process used in orthodontic treatment, which makes teeth shift faster.
2. Manage Grinding or Clenching
If you wake up with tight jaw muscles or worn edges on your teeth, you may be clenching or grinding at night. A custom nightguard can protect your teeth and reduce pressure on the supporting tissues.
3. Use Retainers After Orthodontic Treatment
If you’ve had braces or Invisalign, retainers play an important role in maintaining your results. Wearing them as instructed helps keep your teeth in position over time.
4. Replace Missing Teeth Early
Even a single missing tooth can cause neighbouring teeth to drift or affect your bite. Replacing it promptly with a dental implant, bridge, or denture helps maintain proper spacing and alignment.
If Your Teeth Have Already Shifted
Sometimes, movement reaches a point where it becomes visible when you smile or chew. If this happens, your dentist can recommend ways to correct it safely and predictably.
1. Clear Aligners (e.g. Invisalign)
Clear aligners gently guide teeth back into better alignment without traditional braces. They’re removable, discreet, and suitable for mild to moderate spacing or crowding.
2. Orthodontic Treatment
Traditional braces are another option for correcting noticeable movement. They use brackets and wires to guide teeth into better alignment and may be recommended when greater control is needed.
3. Retainers for Maintenance
After repositioning, retainers help maintain results and prevent further movement.
Your dentist will always start by checking gum and bone health to ensure the foundation is stable before recommending any treatment.
When to See a Dentist
If you’ve noticed your teeth changing position or your bite feeling uneven, it’s best to have an examination before the movement becomes more noticeable. A dentist can assess gum health, bite balance, and restorations to determine what’s causing the shift and discuss the most suitable options.
Key Takeaway
Teeth naturally move throughout life, but with healthy gums, good oral habits, and regular dental care, you can keep your smile stable for years to come.
If you’d like to learn more or schedule a review, you can reach Penn Pacific Dental Center at info@ppdental.com.sg.
(This article is for general information and does not replace a professional dental examination.)
BOOK AN APPOINTMENT WITH US
To schedule a visit, please use our online booking page↗ or call +65 6904 8482. Penn Pacific Dental Center is located at 160 Robinson Road, #05-14 SBF Center, Singapore 068914.
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