Floss threaders
A floss threader guides dental floss beneath a fixed bridge, retainer wire, or orthodontic appliance so you can clean beneath it.
The short answer
A floss threader guides dental floss beneath a fixed bridge, retainer wire, or orthodontic appliance so you can clean beneath it. Pass the threader through the space, pull floss into position, then clean each tooth surface with a gentle C shape.
What is the direct answer?
What does this question mean?
The threader is a flexible loop or needle-like aid that carries floss through a space ordinary floss cannot enter. It is different from an interdental brush or water flosser, which may be better for some wide spaces or appliance designs.
What can you do next?
Use clean floss, thread it through the loop, and slide it under the bridge or wire without snapping it against the gum. Curve the floss around each supporting tooth and move it up and down, using a fresh section as you move around the mouth.
When should you seek dental care?
Ask for an appointment if floss repeatedly catches, the gum bleeds, the bridge is loose, or the threader cannot pass without force. Pain, swelling, a bad taste, or a broken wire also needs assessment.
What should you ask the dentist?
Ask which cleaning aid fits your bridge, retainer, implant restoration, or braces, and ask for a demonstration. Confirm whether the contact points, gum shape, or appliance design needs adjustment if cleaning remains difficult.
Frequently asked questions
Can I use a threader with braces?
Yes, a threader can guide floss under the archwire, but orthodontic instructions may also recommend an orthodontic flosser or interdental brush.
Why do my gums bleed when I thread floss?
Plaque inflammation is common, but forceful technique, trapped food, or an appliance problem can also contribute.