Does anyone have any suggestions on how to get a 10 year old to be still long enough for laughing…

Does anyone have any suggestions on how to get a 10 year old to be still long enough for laughing gas to take effect so that they can extract some teeth my daughter is so horrible she doesn't let them do anything at all and they let her walk out they don't strap her to the board to pull teeth it's got to happen I don't see how she is eating or anything I swear this is ridiculous I am so fed up with these dentist out here