Proprietary Medicated TechnologyProtect & Heal Technology - Dual Layer DesignNo Sucrose, Glucose, Lactose or PreservativesLess than 1 Calorie. Dual Layer Design:. Medicated Layer Promotes HealingBioadhesive Layer Forms Protective Barrier. Clinically Proven. Helps Heal as Fast as 1 DayRelieves Pain & Heals SoresUp to 12 Hours of Soothing ReliefStays on While Eating. Dentemp Canker Cover is the easy-to-use tablet that covers and protects your canker sores. The soothing menthol will provide instant pain relief and help get you back to normal quickly! Indications for the temporary relief of pain associated with canker sores.