Hard material.
Bought these because I liked the design of the product over the full upper....and expensive.... dental guard my dentist made for me last time. The one made by my dentist restricted my breathing and caused my mouth to become so dry that I would wake up in the middle of the night. While these DenTek guards were comfortable, stayed in place and didn't restrict my breathing, the two pads that separate your top and bottom teeth on both sides was so hard that I actually woke up with a headache two days in a row. If you clench your teeth at night like I do, these two small bite pads actually increase the pressure on fewer teeth instead of spreading it out over all your teeth and actually increased the pain of teeth from clenching. I discovered Plackers Grind no More Night Guards which have the same design as the DenTek Platinum guards but made out of a softer material that solved this problem. The Plackers are considered disposable, but have been lasting me about a week each and at $16 for a 14 count pack /$1.20 per guard its worth it. They are the most comfortable dental guards I have used, stay in place with no issue and work great.
Rating: 2 stars