<s>[INST] Hi, may I answer your health queries right now ?  Please type your query here...I have grand mal seizures for 15 years now.  Everytime i have one i bite my tongue badly and have been having dental problems. I recently bit down so hard that i knocked my bottom teeth lose and realigned them.  I was informed that you are not supposed to put anything in your mouth before or when you have one. I would like to know if there is a dental mouth guard i can put in prior to  my seizure so my teeth arent affected anymore?? [/INST] Thanks for using Chat Doctor. Read your query. During an attack (grand mal) the seizures can last for 2-5 min and there will be a lot of motor activity in the mouth. This can lead to unexpected results such as dislodgement of the mouthpiece ?mouth guard if worn which would put you at risk of choking. Even if it stays in place it could result in serious injury to your teeth. So it is not advisable for any mouth guard in a person with seizures. Hope this was helpful. Thanks and regards. </s>