A self-heating chemically activated pouch formed to hold a medical or dental device or material prior to use or application. The pouch has a construction to readily receive a dental device or material, such as a tip or syringe containing a dental material or composite, permitting easy activation of an activator or trigger to initiate an exothermic chemical reaction of a heating material to heat the dental device or material. Heating the dental material or composite improves its flowability and properties.
