Staff Answer
Jun 22, 2026 - 06:35 PM
How to Tell Which One You Need
Most customers go with a 3mm thick custom dental guard. 3mm is the standard thickness that a dentist would make.
Go with a 2mm guard if:
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Your grinding is mostly moderate—you wake up with occasional jaw tension, but you aren't waking up your partner with loud grinding noises.
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You are highly sensitive to bulky things in your mouth and worry about comfort or falling asleep.
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You primarily clench rather than grind back and forth, needing a slim cushion to absorb pressure without adding unnecessary bulk.
Go with a 3mm guard if:
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You are a severe, aggressive grinder. If a dentist has noted significant enamel wear, flattened canines, or chipped teeth, you need the extra material.
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You have a history of chewing through thinner over-the-counter or soft guards relatively quickly.
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You experience severe morning jaw pain or headaches, where separating the bite slightly more can help relax the masseter (jaw) muscles.
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