What is an orthodontic coil spring?
An orthodontic coil spring is a small spring threaded onto the archwire. It sits between brackets and is used to apply controlled force.
What is the difference between open and closed coil springs?
Open coil springs are commonly used to create or maintain space. Closed coil springs can be used to pull teeth or segments together when attached in a specific way. Patients do not need to know the mechanics in detail, but it explains why a spring may appear at one stage and disappear later.
Why would an adult patient need one?
Examples include opening space for a blocked-out tooth, maintaining room, redistributing space before restorative work or supporting more complex tooth movement. The reason depends entirely on the plan for your bite and tooth positions.
Will a spring make braces feel tighter?
It can. Many people notice pressure or a different sensation after a spring is added because it changes the force system. Mild soreness is common for a few days.
How do you clean around it?
Clean it the same way you clean the rest of the appliance: brush carefully around brackets and wire, and continue interdental cleaning as recommended. Springs create extra little surfaces where food may catch.
When is it a problem?
Call if a spring shifts, breaks, causes significant trauma or is associated with a wire poking into the cheek. Do not stretch, compress or remove it yourself.
Sources & further reading
- AAO glossary — Terminology related to springs and orthodontic mechanics.
- AAO FAQs — General consumer information on orthodontic treatment.
These references support general information. Your own dentist or orthodontist should make recommendations for your specific teeth, gums, appliance and treatment plan.