My son was due a dental checkup just as lockdown started. He isn’t great at having his teeth brushed and he’s getting a little build-up on his lower teeth. So, I’ve been brushing a little harder and longer. He’s been complaining since yesterday that his gums hurt and is struggling to eat properly. We just had a look and there’s a white line along one side of his lower gums. Picture attached, it isn’t great. Have I damaged them by brushing too hard? Or is there another issue? We’re away from home visiting my mum for 3 weeks, so no idea how we would see a dentist if we need to. Thank you if you can advise! Great timing with the weekend!