If you're undergoing orthodontic treatment with braces, you might be introduced to elastic bands — tiny yet powerful tools that help perfect your bite. Among these, latex elastic bands are the most commonly used. These little rubber bands play a big role in aligning your teeth and jaw for a healthy, functional smile.
In this post, we’ll explain what latex elastics are, how they work, and what you need to know about their sizes, types, and care.
What Are Latex Elastic Bands?
Latex elastics are small, stretchy rubber bands made from natural rubber latex. They are used in conjunction with braces to correct bite issues such as overbites, underbites, crossbites, and to help close gaps between teeth.
They're connected between hooks on your upper and lower brackets, applying gentle but continuous force to guide your teeth and jaw into proper alignment.
Why Are They Important?
Orthodontic elastics provide additional force that the braces themselves can’t always achieve. Depending on how they’re worn (which teeth they're attached to), they can:
- Move teeth forward or backward
- Adjust the midline (center alignment of the teeth)
- Correct jaw positioning
- Improve how your upper and lower teeth fit together (occlusion)
Wearing your elastics exactly as prescribed is essential — even a few missed hours a day can delay your treatment progress.
Different Sizes and Forces of Latex Elastics
Not all elastic bands are the same. They vary in diameter (size) and force (strength), and both are carefully chosen based on your specific orthodontic needs.
🔹 Sizes (Diameter)
Latex elastic bands are typically measured in inches and come in common sizes like:
Smaller elastics are used for more localized or precise movements, while larger ones may be used to apply force over a broader area or span greater distances.
🔹 Force (Strength)
Elastics also come in different force levels, usually measured in ounces:
- Light (2–3.5 oz)
- Medium (4.5–6 oz)
- Heavy (6.5–8 oz)
- Extra Heavy (over 8 oz)
Your orthodontist will provide the exact size and force that’s appropriate for your treatment — don’t switch them on your own!
Latex vs. Non-Latex Elastics
Some patients are allergic to latex. In those cases, non-latex elastics made from synthetic materials like silicone are used. These are usually slightly less stretchy, so your orthodontist may adjust your treatment plan accordingly.
Tips for Wearing Latex Elastics
To get the best results:
✅ Wear them as instructed – Usually 24/7, except when eating or brushing (unless told otherwise)
✅ Change them regularly – At least once or twice a day to maintain strength
✅ Carry extras – Keep spares with you in case one breaks
✅ Don’t double up – Using two at once won’t speed things up and can harm your teeth or gums
✅ Let your orthodontist know if they snap frequently or cause pain beyond mild pressure