My 9 yr old girl has grubby caniones which I want to clean, she had 17 teeth out not that long ago, and I don't want it happening again, she is mouth sensitive due to a long standing lip fold issue, which was eventually resolved by surgery...I tried the rubber thumb with past..no use, cant do toothbrush, and worried about anything in her water as she suffers pancreatitis so don't want anything that could cause an issue...doesn't leave a lot but if anyone has tried smeting, even unconventional successfully would love to know!!