Crooked teeth options in Penrith.
Crooked teeth (called malocclusion) at Bella Dental Penrith are most often caused by genetics, jaw size mismatch, childhood habits like thumb-sucking, premature loss of baby teeth, or crowding. The 3 main treatment paths are orthodontics (clear aligners or braces) to move the teeth, veneers or crowns to camouflage the appearance, or jaw surgery for severe cases. The right option depends on the cause, your age, and how much you want to change the bite versus just the look. We will assess your case and talk through the trade-offs at a consultation.
What is malocclusion?
Malocclusion is the technical term for teeth that do not fit together properly when the mouth is closed. “Mal” comes from Latin for “bad,” and “occlusion” means “bite.” It includes crooked, crowded, gappy, or protruding teeth, and bites that are too deep, too open, too far forward, or too far back.
Malocclusion is classified into 3 main classes (the Angle classification):
- Class I. The bite is mostly normal, but individual teeth may be crowded, rotated, gappy, or out of position. The most common type.
- Class II. The upper teeth and jaw sit further forward than the lower (often called “overbite” or retrognathia). Includes “buck teeth.”
- Class III. The lower teeth and jaw sit further forward than the upper (often called “underbite” or prognathia).
Each class has different treatment options and complexity.
What causes crooked teeth?
The most common causes:
- Genetics Jaw size, tooth size, and tooth position are all inherited. Most crooked teeth are partly genetic.
- Jaw size mismatch. Modern human jaws are smaller than our ancestors' jaws, but tooth size has not shrunk as much. The result is crowding.
- Premature loss of baby teeth. If a baby tooth is lost early, the neighbouring teeth can drift into the space and block the adult tooth from erupting.
- Childhood habits. Prolonged thumb-sucking, dummy use, or tongue thrust can push the front teeth forward and create an open bite.
- Mouth breathing. Chronic mouth breathing (often from allergies or enlarged tonsils) can change jaw development and lead to a long, narrow face and crowded teeth.
- Wisdom teeth. A wisdom tooth pushing forward can cause crowding in the front teeth, although research is mixed on how much.
- Gum disease. Advanced gum disease loosens teeth, which then drift.
- Trauma. A knock to a baby tooth can affect the adult tooth developing underneath.
- Tongue tie or other oral restrictions. Can affect jaw development.
Why does it matter if my teeth are crooked?
Crooked teeth are not just a cosmetic concern. Common knock-on effects:
- Cleaning. Crowded or overlapping teeth are harder to brush and floss. This increases the risk of decay and gum disease.
- Wear. A bad bite can cause uneven wear on certain teeth, sometimes exposing the dentine and causing sensitivity.
- Jaw pain (TMD). A misaligned bite can strain the jaw joints and muscles, leading to jaw pain, clicking, and headaches.
- Chewing efficiency. A poor bite makes it harder to chew food properly.
- Speech. Severe malocclusion can affect how you pronounce certain sounds.
- Gum recession. Teeth that stick out or are rotated are more vulnerable to gum recession.
- Self-confidence. Many people feel self-conscious about crooked teeth, and treatment can have a real impact on quality of life.
What are my treatment options?
The 3 main paths:
Orthodontics (clear aligners or braces).
Moves the teeth into a better position over 6 to 24 months. The only option that changes the underlying tooth position. Best for moderate to severe malocclusion, or where the bite needs correction.
Reduce the grinding.
Covers the front of the teeth to give the appearance of straightness without moving the teeth. Best for mild crowding or cosmetic-only cases where the bite is acceptable.
Jaw surgery (orthognathic surgery).
For severe Class II or Class III cases where the jaws themselves are out of position. Done by an oral and maxillofacial surgeon, usually combined with orthodontics.
Often a combination is right. For example, orthodontics to fix the bite plus veneers on a few teeth for the final cosmetic result.
How is the right option chosen?
It depends on:
- Severity of the malocclusion. Mild cases suit veneers or composite. Moderate cases suit orthodontics. Severe cases may need jaw surgery.
- Your bite. If the bite is acceptable, cosmetic options work. If the bite is off, orthodontics or surgery is needed.
- Your age. Children and teens respond best to orthodontics because the jaw is still growing. Adults can still have orthodontics, but treatment takes longer and may need surgery for severe cases.
- Time and budget. Composite is one visit and cheapest. Orthodontics is 6 to 24 months. Veneers are 2 to 3 visits. Surgery is 1 to 2 years including orthodontics.
- Personal preference. Some patients want the underlying fix. Others want a cosmetic quick fix.
How long does orthodontic treatment take?
- Clear aligners (Spark, Invisalign): 6 to 18 months for mild to moderate cases, up to 24 months for complex cases
- Traditional braces (metal): 12 to 24 months
- Ceramic braces (tooth-coloured): 12 to 24 months
- Lingual braces (behind the teeth): 12 to 24 months
- Limited orthodontics (front 6 teeth only): 3 to 9 months for minor crowding
- Combined orthodontics + jaw surgery: 18 to 30 months total
The exact time depends on the complexity of the case, how well you follow the instructions (especially with removable aligners), and how your bone responds to movement.
How do I keep my teeth straight after treatment?
Wear your retainer as directed. This is the single biggest factor in keeping teeth straight long-term. Most patients need to wear a retainer at night, indefinitely.
Use an antibacterial mouthwash (e.g., chlorhexidine) for 1 to 2 weeks, if your dentist recommends it. Do not use long-term without advice, as it can stain the teeth.
Book 6-monthly check-ups so we can monitor the result and adjust the retainer if needed
Avoid habits that can shift teeth, like chewing on pens or biting nails
Treat gum disease early, if it develops, as it can cause teeth to drift
Replace missing teeth to prevent neighbouring teeth from drifting into the gap
Book a crooked teeth consultation at Bella Dental Penrith
We are at Shop T12, Southlands Shopping Centre, 2 Birmingham Road, South Penrith NSW 2750. Phone (02) 4722 6300 to book, or send us a message through the contact form on this site. Open Monday to Friday, 9 am to 5 pm, with extended hours to 6 pm on Wednesdays.
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Our team is ready to assist you with anything you need.
Are crooked teeth a dental problem?
Often yes. Crooked teeth are harder to clean, can cause uneven wear, and can strain the jaw joints. They are also a common cosmetic concern.
At what age should my child see an orthodontist?
Around age 7, according to the Australasian Society of Orthodontists. Earlier, if you spot a specific problem like a crossbite or thumb-sucking that has not stopped. Most children at 7 do not need treatment, but a check gives parents time to plan.
Can adults get braces or aligners?
Yes. There is no upper age limit for orthodontics. Adult teeth move more slowly than children’s, but the result is the same. Many adults choose clear aligners for cosmetic reasons.
Is orthodontics covered by private health insurance?
Often partially, under “orthodontic” extras, with a lifetime limit and a 12-month waiting period. We provide a treatment plan with item numbers so you can confirm your rebate.
Will my teeth stay straight after treatment?
Usually yes, if you wear your retainer as directed. Without a retainer, teeth gradually shift back towards their original position, especially in the first 1 to 2 years after treatment.
What is the cheapest way to fix crooked teeth?
Composite bonding for mild cases. One visit, $200 to $500 per tooth. The result is good for small corrections but does not change the bite.