Fixed Orthodontic Appliances
Fixed orthodontic appliances — commonly known as braces — remain the most versatile and clinically powerful method of tooth straightening available. While clear aligners have grown enormously in popularity, fixed appliances continue to be the treatment of choice for complex orthodontic cases and cases where precise control of tooth movement is essential.
How Do Fixed Braces Work?
Fixed braces consist of small metal or ceramic brackets bonded directly to the tooth surface, connected by an archwire. The clinician applies precisely calibrated forces to the teeth by selecting archwires of different diameters and stiffnesses, using elastic ties, and placing precision bends or attachments as required.
Tooth movement in response to these forces occurs through a biological process of bone remodelling: bone is resorbed on the pressure side of the tooth and deposited on the tension side, allowing the tooth to move through the bone over time.
Types of Fixed Appliances
Traditional metal braces: The most robust and clinically versatile option. Small, modern metal brackets are far less conspicuous than those of previous decades.
Ceramic braces: Tooth-coloured ceramic brackets that blend with the natural tooth colour for a more discreet appearance. Mechanically equivalent to metal braces.
Self-ligating braces: Use a built-in clip mechanism rather than elastic ties to hold the archwire, reducing friction and potentially enabling more efficient tooth movement.
Lingual braces: Bonded to the inner (tongue-side) surface of the teeth, making them completely invisible from the outside. Technically complex and requiring specialist expertise.
What Can Fixed Braces Treat?
Fixed appliances are suitable for virtually all orthodontic problems, including:
- Crowding and spacing
- Class II and Class III malocclusions
- Vertical problems (open bite, deep bite)
- Correction of rotated teeth
- Complex multi-tooth movements
At Smilecraft, our clinicians discuss all suitable options with every orthodontic patient, helping each person find the approach that best fits their clinical needs and lifestyle preferences.
