A dual-layer anti-grinding night guard, featuring a soft inner layer and rigid outer layer, is a specialized dental appliance designed to protect teeth from bruxism (teeth grinding/clenching) during sleep. The inner layer is typically made of medical-grade silicone, offering flexibility and biocompatibility, while the outer layer consists of durable acrylic resin for structural stability.
Its working principle lies in the synergistic effect of the two layers: the soft inner layer conforms to the user's dental contours, reducing pressure on gums and teeth, while the rigid outer layer absorbs and disperses grinding forces, preventing enamel wear, chipping, or damage to restorations like fillings or crowns.
Compared to single-layer guards, it boasts distinct advantages: enhanced comfort for extended wear, superior shock absorption, and longer durability. It is ideal for individuals with moderate to severe bruxism, those with sensitive gums, or people with dental restorations (fillings, crowns) or mild misalignment.
For maintenance, rinse the guard with cold water after use, clean it with a soft brush and non-abrasive toothpaste weekly, and store it in a ventilated, antibacterial case. Replace it every 6–12 months or when signs of wear (cracks, deformation) appear to ensure optimal protection.