MID - SISU mouthguards are ideal for ORTHODONTIC patients since normally when you have orthodontics you must tighten your brackets every month. Then you can reshape your mouthguard each month to continue protecting you as your teeth are aligned to achieve the smile you want. But how should your mouthguard be molded or adapted? We have two techniques that work perfectly. 1. Locking your braces with wax or 2. Locking your braces with aluminum foil.