Retainers Explained

January 28, 2026•2 min read

Retainers Explained: Why Teeth Move Back After Braces

Introduction

Braces or aligners give patients straight teeth, but many are surprised when teeth begin to shift after treatment. This natural process is called relapse, and it is why retainers are essential for maintaining results.

At Innovative Dental Center, we educate patients about retainers from the first visit, ensuring smiles remain straight and healthy for life.

Why Teeth Move After Orthodontic Treatment

Teeth are held in place by:

Periodontal ligaments
Bone remodeling

Even after treatment:

Ligaments “remember” previous positions
Jaw growth continues in children and teens
Pressure from lips, tongue, and bite habits affects alignment

Without retainers, small changes can accumulate over time.

Types of Retainers

1. Fixed Retainers

Thin wire bonded to the back of teeth
Works 24/7 without patient effort
Ideal for lower front teeth or high-relapse cases

2. Removable Retainers

Hawley (acrylic with wire) or clear plastic aligners
Can be removed for eating and cleaning
Often used for upper teeth or mild correction

How Long Should Retainers Be Worn?

Protocol differs according to case and according to the treating orthodontist.

Usually the patient is asked to wear the retainer full time after removing the appliance. Gradually wearing hours can be reduced after teeth stabilize.

Consistency ensures results last a lifetime.

Common Questions About Retainers

Do retainers hurt?

Slight pressure is normal initially, but pain is minimal and temporary.

Can I eat with my retainer?

Fixed retainers stay in place; removable retainers should be removed while eating.

How do I clean a retainer?

Daily brushing and soaking in a recommended solution keep it hygienic.

What happens if I stop wearing it?

Teeth will gradually shift back toward their original positions.

Can retainers correct minor shifting?

Yes, especially if worn promptly after noticing movement.