text: this is not rare to occur...coz it takes time for sensation to recover and so the patient my not even realise that he has bit his tongue, cheeks or lips...\nthe only possible precaution is that the docs need to inform the patient to consciously avoid doing that or ask the relatives to take care wen it is a child patient. so it also depends on the age of your niece.\nwhile inserting the tube, they shud hold the tongue and retract the lips and cheeks in such a case.\nbut still with all such precautions, soft tissue bites are quite common after oral surgeries especially under local anaesthesia.