What is the difference between metal braces and clear aligners like Invisalign?

Braces and aligners are corrective treatments used to realign teeth. In some cases, aligning teeth is essential for preserving their health and function, while in others, it is an aesthetic treatment aimed at restoring self-confidence.

Aesthetics

Metal braces have a significantly different aesthetic compared to Invisalign. Invisalign consists of clear trays that are almost invisible, making them ideal for individuals seeking a subtle impact on their appearance.

Braces, by contrast, are fixed to the front of the teeth and made of metal brackets and wires. They are more noticeable when smiling but can be customised using ligatures (small coloured elastics) to add a pop of colour to the smile.

Other options for those considering braces include ceramic and lingual braces:

• Ceramic braces – Instead of metal brackets, a clear brace made from polycrystalline alumina is applied to the tooth. These blend with the natural hue of the teeth, and the wire is fed through the discreet brackets, making them less noticeable.
• Lingual braces – These are attached to the back of the teeth, offering a more discreet treatment option.

Hygiene

The maintenance routines for braces and Invisalign differ, so it’s important to understand the necessary hygiene practices for both.

Invisalign should be removed when eating or drinking. If not removed, food and drink can become trapped between the aligners and teeth, encouraging bacteria growth, which may lead to decay. Additionally, biting into food while wearing the aligners can cause the material to warp.

Braces, on the other hand, can be difficult to clean because they create additional surfaces where food and drink can become trapped. Extra care is required to prevent the build-up of plaque, which can lead to staining and tooth decay.

Cost

The cost of both braces and Invisalign varies depending on individual cases. However, the advanced technology and software used to design Invisalign typically make it more expensive than traditional braces.[rc1] 

Factors such as the degree of alignment needed, the duration of treatment, and the resources used in the treatment process will influence the final cost.

Comfort and Convenience

Braces can sometimes catch on soft tissues like the inner cheeks and gums, leading to scratches or sores. Patients can apply orthodontic wax to the sharp points on their braces to reduce irritation and allow the soft tissues to heal.

Invisalign trays, on the other hand, are designed to fit the contours of the gums and teeth. The softer material makes them gentler on the mouth, reducing the risk of irritation or sores.

However, patients who choose Invisalign need to commit to wearing the aligners for more than 20 hours a day to ensure proper realignment. Those who struggle with discipline may find the treatment process prolonged.

For those wearing braces, it’s important to avoid certain foods, as they can become trapped or cause the wires to break or brackets to dislodge, making the braces ineffective at moving teeth.

Treatment Duration

The length of treatment varies for both braces and Invisalign, depending on individual cases. On average, treatment times for both range from 3 months to 2 years.

Foods to Avoid:

• Nuts
• Hard-boiled sweets
• Popcorn
• Chewing gum and sticky sweets like caramel or toffee
• Brittle foods like crisps
• Raw fruits and vegetables