The endotracheal tube does not allow full closure of the mouth to examine the relationship between the teeth. In the anaesthetised patient prior to intubation, the muscles are relaxed and the tongue often gets in the way, so a complete evaluation of occlusion is not always possible. | The endotracheal tube does not allow full closure of the mouth to examine the relationship between the teeth. In the anaesthetised patient prior to intubation, the muscles are relaxed and the tongue often gets in the way, so a complete evaluation of occlusion is not always possible. |