Lower arch L1
Start with L1
L1 brings your lower jaw forward slightly (+1 mm). Wear it with U from your first night.
Watch the demonstration, then follow the written steps below.
Fitting and care guide

Start with what you need, then follow the illustrated steps to mould, wear and care for your mouthpiece. Fitting all three pieces takes about 10 minutes.
Your kit contains one upper arch marked U, two lower arches marked L1 and L2, and a storage case. You’ll mould each arch separately.

Check suitability first. Avera is intended for adults aged 18 and over who snore. If you have been diagnosed with obstructive sleep apnoea (OSA), ask your doctor before using this device.
Mould all three pieces, one at a time: U first, then L1, then L2. Use fresh hot water for each piece and never mould the upper and lower arches together.
90°C water, hot but not boiling · 2 minutes
Find the arch marked U. Place it in hot water at 90°C for 2 minutes. The water should be hot but not boiling. Do not boil the device.

Bite with even pressure · 1 minute
Carefully remove the arch from the water, taking care with the hot water and hot material. Line up the centre of the arch with the gap between your two front teeth. Press it up around your teeth, working towards the back, so it sits on your front and back teeth. Then bite down with even pressure for 1 minute.

Take the arch straight out of your mouth and put it into the bowl of iced water to set the shape.

Mould L1 the same way in fresh hot water: 2 minutes in the water, line up the centre, press it around your lower teeth, bite with even pressure for 1 minute, then set it in iced water. Then do the same with L2.
Mould L2 now, even though you will start with L1, so it is ready when you need it.
Wear U with one lower arch, starting with L1. Do not wear both lower arches together.
Put in U and L1. Both should feel snug on your teeth. The blocks on the upper arch sit just behind the wings on the lower arch, towards the back of your mouth.

Lower arch L1
L1 brings your lower jaw forward slightly (+1 mm). Wear it with U from your first night.
Lower arch L2
L2 brings your lower jaw further forward (+3 mm). We recommend switching to L2 if snoring persists. If fit or comfort is a concern, contact our team before changing.
Wear your Avera with your mouth closed. The design still lets you open your mouth slightly while it is in.
Next: if a piece does not holdHelp with fit, your first nights, cleaning and common questions.
If an arch is not holding after a night or two, remould only that piece. You can remould each piece up to 2 more times, so 3 times in total.
Place the piece in hot water at 90°C for 2 minutes, the same as the first fit.
Before you refit it, check the inside has gone smooth again. When you can no longer see the imprint of your teeth, it is ready to remould.
Line up the centre, press it around your teeth, then bite with even pressure for 1 minute.
Put it straight into iced water to set the shape.
Rinse your Avera with clean water and give it a gentle brush with a soft toothbrush.
Let it dry, then keep it in its case when you are not wearing it.

For a deep clean, we recommend the Good Sleep Co Cleaner.
Inspect it before each use. Do not use it if any part is damaged or missing.
Keep cleaning gentle. Do not use bleach, mouthwash, ammonia or other harsh or abrasive cleaners, and do not soak your Avera in denture tablets.
No. This guide is for the at-home Hushd Avera with mouldable U, L1 and L2 arches. For a custom Hushd Pro device, follow your treating practitioner’s instructions.
No. Mould each lower arch separately, then wear the upper arch with one lower arch: L1 or L2.
Up to 2 more times after your first fit, so 3 times in total. Remould only the piece that is not holding, following the steps in If a piece does not hold.
Use hot water to mould your Avera, following the fitting steps above. Do not use a microwave or substitute another brand’s fitting method.
Contact our team so we can help you check the fit. Stop using the device if you experience excessive pain or discomfort.
Avera may cause tooth movement or changes to your bite, gum or tooth soreness, jaw joint pain or soreness, difficulty breathing through your mouth, or increased saliva. Stop using it if you experience excessive pain or discomfort, severe gagging or difficulty breathing. Speak with your doctor if symptoms worsen or do not improve.
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