Hi! I’m Dr Kim Nguyen, an associate dentist here at Pitt St Dental Centre in Sydney CBD.
Yesterday, I had a consultation with a new patient, Samantha from Walsh Bay. She was interested in Invisalign to straighten her teeth.
It’s a common question that we get from our Invisalign patients. So I decided to make this short video to help you understand why teeth can get more crowded over time.
Another interesting theory revolves around how our bodies grow as we age. There’s a forward and downward growth pattern, causing teeth to migrate slowly towards the front. This movement may trigger crowding, particularly noticeable in the lower front teeth.

Here’s something else to keep in mind, if you had orthodontic treatment as a teenager, maintaining a straight smile in the long term depends on your dedication to using retainers. Our teeth have a tendency to shift back to their original positions, and if we don’t stay consistent with wearing our retainers, guess what happens? Crowded teeth can gradually make a comeback. So, it’s important to stay on top of using your retainers to preserve that beautiful straight smile you worked hard to achieve.
Now, crowded teeth isn’t merely an aesthetic issue. They pose an increased risk for dental decay and gum disease, interfere with proper tooth function, and may even impact your confidence by altering your smile. So if you find your teeth are getting crooked or crowded overtime, it would be a good idea to consult your dentist.
I hope you find this video informative! If you have been thinking about straightening your teeth, and want to work with someone who is also trusted by well-known Australian TV and sports personalities, we would love to look after you.
Here at Pitt St Dental Centre, we offer flexible payment options, so you can get your dream smile faster.
Simply call us on +61 2 8000 1832, complete the booking form on our website, or send us a DM on social media, and we’ll be in touch to help you organise your smile consultation. See you in the next video.










