The Sentinel Promise: Perfect fit or we remake it free.
Waking up with jaw soreness, headaches, or worn-down teeth? You may be grinding your teeth at night — a condition known as bruxism. Updated October 26th, 2025, this guide will help you identify the signs, understand the causes, and explore solutions like night guards to protect your teeth and improve your sleep.
Hot or cold giving you that sharp “zing”? Sensitivity usually points to exposed dentin from grinding, acid erosion, gum recession, or a crack. Learn the fixes—custom guards, desensitizing toothpaste, and when to see your dentist.
Trying to decide between an upper or lower night guard? This guide breaks down the key differences in comfort, fit, and effectiveness so you can choose the right guard for your sleep style and jaw. Learn when each type works best—and why a custom fit matters more than the arch you choose.
What if you mess up your dental impression? Don’t panic — it happens more often than you think. At Sentinel Mouthguards, every impression is reviewed by our lab, and if something’s off, we’ll send you a complimentary redo kit. In this guide, we’ll explain the most common mistakes, how to fix them, and how to ensure your night guard fits perfectly from the start.
Wondering how long a night guard really lasts? The answer depends on the type, thickness, and how well it’s cared for. From soft guards that last months to hard copolyester guards that can last years, here’s what to expect — plus tips to extend your night guard’s lifespan.
Choosing the right mouth guard thickness impacts comfort, protection, and durability. Learn when to choose 2mm vs 3mm and how to select the best option for night grinding, daytime clenching, or sports use.
Wondering if a dental night guard can stop teeth grinding? The truth: it won’t stop the habit, but it will protect your teeth, ease jaw strain, and save you from costly dental repairs.
